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BQ40Z50-R2: During learning cycle, When the discharge voltage is below 10%, R_DIS is reset.

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Part Number:BQ40Z50-R2

The chemical id has been correctly learned and updated, but When the discharge voltage is greater than 10%, RDIS is normal. When the discharge voltage is less than 10% RDIS is lit. Why? Then after the CUV, RDIS is cleared, and VOK is still 1. After 5 hours, This learning process is still useful? After discharging and in 5 hours, VOK is 1, update state is 0e and Ra_flag is 0000.


BQ40Z50-R2: Questions about learning cycle

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Part Number:BQ40Z50-R2

1. In step 7, is there some requirement about the charging current for  the battery. I see 0.5C in some materials, but our fast charge is designed to be 1C. And the battery specification also requires 1C. Does this have effect on learning?

2. In step 11, if the result of update status is already 0x0E after step 10. So is there no need to do step 11.

3. When I used bq40z50-R2 to do chemid learning, the update status is already 0x05, and qmax is updated, and, before learning cycle, do I need to change the update status to 0x04 manually?

4. After the product shipped, does it need to enable the update status (Bit 2): Impedance Track gauging and lifetime updating? Manually setting update status = 02 above means shutting down the IT algorithm? But I remember that someone in forum said that after the senc file was burned to the new IC, calibration, testing and GAUGE_EN are still needed. Does it mean that the update status is changed to 04 again?  So what is the purpose of manually changing update status to 02?

BQ27520EVM: Questions about the inaccuracy of bq27520 EVM temperature test

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Part Number:BQ27520EVM

When using the bq27520 demo board to connect our battery for temperature calibration (the TS of the demo board is connected to the temperature sensing pin of the battery), The actual battery temperature measured is 30 degrees, but the temperature displayed in the bqstudio is 56 degrees. And the temperature has no change after calibration;

If the TS pin of the demo board is left floating, it is 30 degrees after calibration.

After contacting FAE, I learn that ext a coef 1-5 and ext b coef 1-4 in DATA FLASH need to be changed, but the result is deviated more when using the new provided parameters. The actual temperature is  29 degrees but -424 degrees is shown.


I only modified ext b coef 4 based on the original default parameters. The temperature is displayed at 29 degrees normally, but I am not sure whether there will be a problem after the temperature change.


The datasheet suggests 10K NTC 103AT thermistor. The thermistor we use is NCP15XH103F03RC, and the B-Constant is 3380K at 25-50 degrees. I don't know if it meets the requirement.

If it does not match, how can I modify the parameters?

BQ34Z100: Register setting for bq34z100 learning cycle

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Part Number:BQ34Z100

Hello, I am using four 18650B paralleled and setting the bq34z100 registers through bqstudio (version 1.3.80) and EV2400: the data in red were changed and  the design capacity and design energy of data in green are multiplied by the paralleled number as the datasheet.

The rated capacity of a 18650B is 3200mah. The rated voltage is 3.6V. Therefore, the design energy should be 3200*3.6*4=46080, but it is found that the range is exceeded after writing. Why? Are the other parameters of the register appropriate? Do you need to change it?

When I wrote the chem id, I found that there are two 18650B chem ids:2012 and 2017. The descriptions of 2017 has another -20C. It is not clear which one should be selected, and if the two writted, an error 1721 was found: chemistry cheksum did not verify.I would like to ask what is the situation, if I use 18650 of other brand in the future, will I need to recalculate the new chemid and Panasonic's 18650 chemid can not be used?

Another issue is  RUP_DIS is always high, and learning cycle can not be started, how can I change it?

There are three files exported from Golden image and only SREC is needed to import  into the new chip (the other two files are BQFS and DFFS). In addition, what files need to be exported for writing?

* Texas Instruments Data Flash File
* File created Fri Jul 06 10:05:26 2018
*
* Device Number 100
* Firmware Version 0.06
* Build Number not available
* Order Number not available
*
* bqz Device Number 100
* bqz Firmware Version 0.16
* bqz Build Number 17
*
* Field Order: Class name Subclass name Parameter name Parameter Value Display Units
ConfigurationSafetyOT Chg551degC
ConfigurationSafetyOT Chg Time2Seconds
ConfigurationSafetyOT Chg Recovery501degC
ConfigurationSafetyOT Dsg601degC
ConfigurationSafetyOT Dsg Time2Seconds
ConfigurationSafetyOT Dsg Recovery551degC
ConfigurationCharge Inhibit CfgChg Inhibit Temp Low01degC
ConfigurationCharge Inhibit CfgChg Inhibit Temp High451degC
ConfigurationCharge Inhibit CfgTemp Hys51degC
ConfigurationChargeSuspend Low Temp-51degC
ConfigurationChargeSuspend High Temp551degC
ConfigurationChargePb Temp Comp0%
ConfigurationChargePb Reduction Rate0%
ConfigurationCharge TerminationTaper Current100mAmp
ConfigurationCharge TerminationMin Taper Capacity25mAmpHr
ConfigurationCharge TerminationCell Taper Voltage100mVolt
ConfigurationCharge TerminationCurrent Taper Window40Seconds
ConfigurationCharge TerminationTCA Set %99Percent
ConfigurationCharge TerminationTCA Clear %95Percent
ConfigurationCharge TerminationFC Set %100Percent
ConfigurationCharge TerminationFC Clear %98Percent
ConfigurationCharge TerminationDODatEOC Delta T101degC
ConfigurationCharge TerminationNiMH Delta Temp01degC
ConfigurationCharge TerminationNiMH Delta Temp Time0Seconds
ConfigurationCharge TerminationNiMH Hold Off  Time0Seconds
ConfigurationCharge TerminationNiMH Hold Off Current0mAmp
ConfigurationCharge TerminationNiMH Hold Off  Temp01degC
ConfigurationCharge TerminationNiMH Cell Negative Delta Volt0mVolt
ConfigurationCharge TerminationNiMH Cell Negative Delta Time0Seconds
ConfigurationCharge TerminationNiMH Cell Neg Delta Qual Volt0mVolt
ConfigurationDataManuf  Date1980/12/16Day + Mo*32 + (Yr -1980)*256
ConfigurationDataSer. Num.000ahex
ConfigurationDataCycle Count3600Count
ConfigurationDataCC Threshold3240mAmpHr
ConfigurationDataMax Error Limit12%
ConfigurationDataDesign Capacity12800MilliAmpHour
ConfigurationDataDesign Energy11520MilliWattHour
ConfigurationDataSOH Load I1MilliAmp
ConfigurationDataCell Charge Voltage T1-T24200mV
ConfigurationDataCell Charge Voltage T2-T34150mV
ConfigurationDataCell Charge Voltage T3-T44100mV
ConfigurationDataCharge Current T1-T221Percent
ConfigurationDataCharge Current  T2-T324Percent
ConfigurationDataCharge Current  T3-T4254Percent
ConfigurationDataJEITA T10degC
ConfigurationDataJEITA T240degC
ConfigurationDataJEITA T345degC
ConfigurationDataJEITA T460degC
ConfigurationDataDesign Energy Scale4Number
ConfigurationDataDevice Nameh

2
-
ConfigurationDataManufacturer Namebq34z100-
ConfigurationDataDevice Chemistry
Texa
-
ConfigurationDischargeSOC1 Set Threshold150mAh
ConfigurationDischargeSOC1 Clear Threshold175mAh
ConfigurationDischargeSOCF Set Threshold75mAh
ConfigurationDischargeSOCF Clear Threshold100mAh
ConfigurationDischargeCell BL Set Volt Threshold12810mVolt
ConfigurationDischargeCell BL Set Volt Time240Seconds
ConfigurationDischargeCell BL Clear Volt Threshold523mVolt
ConfigurationDischargeCell BH Set Volt Threshold21520mVolt
ConfigurationDischargeCell BH Volt Time204Seconds
ConfigurationDischargeCell BH  Clear Volt Threshold528mVolt
ConfigurationDischargeCycle Delta0%
ConfigurationManufacturer DataPack Lot Code0hex
ConfigurationManufacturer DataPCB Lot Code0hex
ConfigurationManufacturer DataFirmware Version0hex
ConfigurationManufacturer DataHardware Revision0hex
ConfigurationManufacturer DataCell Revision0hex
ConfigurationManufacturer DataDF Config Version0hex
ConfigurationIntegrity DataStatic Chem DF Checksum6484Number
ConfigurationLifetime DataLifetime Max Temp301degC
ConfigurationLifetime DataLifetime Min Temp201degC
ConfigurationLifetime DataLifetime Max Chg Current0mAmp
ConfigurationLifetime DataLifetime Max Dsg Current0mA
ConfigurationLifetime DataLifetime Max Pack Voltage320020mV
ConfigurationLifetime DataLifetime Min Pack Voltage350020mV
ConfigurationLifetime Temp SamplesLT Flash Cnt0Count
ConfigurationRegistersPack Configuration161flags
ConfigurationRegistersPack Configuration Bffflags
ConfigurationRegistersPack Configuration C30flags
ConfigurationRegistersLED_Comm Configuration0flags
ConfigurationRegistersAlert Configuration0flags
ConfigurationRegistersNumber of series cell1num
ConfigurationLifetime ResolutionLT Temp Res11degC
ConfigurationLifetime ResolutionLT Cur Res100mA
ConfigurationLifetime ResolutionLT V Res2520mV
ConfigurationLifetime ResolutionLT Update Time60Seconds
ConfigurationLED DisplayLED Hold Time4Num
ConfigurationPowerFlash Update OK Cell Volt2800mVolt
ConfigurationPowerSleep Current10mAmp
ConfigurationPowerFS Wait0Seconds
System DataManufacturer InfoBlock A 00hex
System DataManufacturer InfoBlock A 10hex
System DataManufacturer InfoBlock A 20hex
System DataManufacturer InfoBlock A 30hex
System DataManufacturer InfoBlock A 40hex
System DataManufacturer InfoBlock A 50hex
System DataManufacturer InfoBlock A 60hex
System DataManufacturer InfoBlock A 70hex
System DataManufacturer InfoBlock A 80hex
System DataManufacturer InfoBlock A 90hex
System DataManufacturer InfoBlock A 100hex
System DataManufacturer InfoBlock A 110hex
System DataManufacturer InfoBlock A 120hex
System DataManufacturer InfoBlock A 130hex
System DataManufacturer InfoBlock A 140hex
System DataManufacturer InfoBlock A 150hex
System DataManufacturer InfoBlock A 160hex
System DataManufacturer InfoBlock A 170hex
System DataManufacturer InfoBlock A 180hex
System DataManufacturer InfoBlock A 190hex
System DataManufacturer InfoBlock A 200hex
System DataManufacturer InfoBlock A 210hex
System DataManufacturer InfoBlock A 220hex
System DataManufacturer InfoBlock A 230hex
System DataManufacturer InfoBlock A 240hex
System DataManufacturer InfoBlock A 250hex
System DataManufacturer InfoBlock A 260hex
System DataManufacturer InfoBlock A 270hex
System DataManufacturer InfoBlock A 280hex
System DataManufacturer InfoBlock A 290hex
System DataManufacturer InfoBlock A 300hex
System DataManufacturer InfoBlock A 310hex
Gas GaugingIT CfgLoad Select1Number
Gas GaugingIT CfgLoad Mode0Number
Gas GaugingIT CfgMax Res Factor60num
Gas GaugingIT CfgMin Res Factor14num
Gas GaugingIT CfgRa Filter10num
Gas GaugingIT CfgMin PassedChg NiMH-LA 1st Qmax2%
Gas GaugingIT CfgMaximum Qmax Change25%
Gas GaugingIT CfgCell Terminate Voltage2900mVolt
Gas GaugingIT CfgCell Term V Delta256mVolt
Gas GaugingIT CfgResRelax Time803Seconds
Gas GaugingIT CfgUser Rate-mA9562MilliAmp
Gas GaugingIT CfgUser Rate-Pwr3870mW/cW
Gas GaugingIT CfgReserve Cap-mAh24587MilliAmpHour
Gas GaugingIT CfgReserve Energy-184320mWh/cWh
Gas GaugingIT CfgMax Scale Back Grid0num
Gas GaugingIT CfgCell Min DeltaV51200mVolt
Gas GaugingIT CfgRa Max Delta0%
Gas GaugingIT CfgDesign Resistance0mOhms
Gas GaugingIT CfgReference Grid0-
Gas GaugingIT CfgQmax Max Delta %0mAmpHour
Gas GaugingIT CfgMax Res Scale0Num
Gas GaugingIT CfgMin Res Scale0Num
Gas GaugingIT CfgFast Scale Start SOC67%
Gas GaugingIT CfgCharge Hys V Shift0mVolt
Gas GaugingIT CfgSmooth Relax Time532s
Gas GaugingCurrent ThresholdsDsg Current Threshold60mAmp
Gas GaugingCurrent ThresholdsChg Current Threshold75mAmp
Gas GaugingCurrent ThresholdsQuit Current40mAmp
Gas GaugingCurrent ThresholdsDsg Relax Time60Seconds
Gas GaugingCurrent ThresholdsChg Relax Time60Seconds
Gas GaugingCurrent ThresholdsCell Max IR Correct257mV
Gas GaugingStateQmax Cell 01000mAmpHr
Gas GaugingStateCycle Count0num
Gas GaugingStateUpdate Status0num
Gas GaugingStateCell V at Chg Term4200mVolt
Gas GaugingStateAvg I Last Run-299mAmp
Gas GaugingStateAvg P Last Run-1131MilliWattHour
Gas GaugingStateCell Delta Voltage2mVolt
Gas GaugingStateT Rise700Num
Gas GaugingStateT Time Constant20Num
Ra TableR_a0R_a0 Flagff55Hex
Ra TableR_a0R_a0 0117Num
Ra TableR_a0R_a0 1108Num
Ra TableR_a0R_a0 2117Num
Ra TableR_a0R_a0 3136Num
Ra TableR_a0R_a0 4128Num
Ra TableR_a0R_a0 5104Num
Ra TableR_a0R_a0 6120Num
Ra TableR_a0R_a0 7109Num
Ra TableR_a0R_a0 8119Num
Ra TableR_a0R_a0 9141Num
Ra TableR_a0R_a0 10153Num
Ra TableR_a0R_a0 11232Num
Ra TableR_a0R_a0 12355Num
Ra TableR_a0R_a0 13472Num
Ra TableR_a0R_a0 141007Num
Ra TableR_a0xR_a0x FlagffffHex
Ra TableR_a0xR_a0x 0117Num
Ra TableR_a0xR_a0x 1108Num
Ra TableR_a0xR_a0x 2117Num
Ra TableR_a0xR_a0x 3136Num
Ra TableR_a0xR_a0x 4128Num
Ra TableR_a0xR_a0x 5104Num
Ra TableR_a0xR_a0x 6120Num
Ra TableR_a0xR_a0x 7109Num
Ra TableR_a0xR_a0x 8119Num
Ra TableR_a0xR_a0x 9141Num
Ra TableR_a0xR_a0x 10153Num
Ra TableR_a0xR_a0x 11232Num
Ra TableR_a0xR_a0x 12355Num
Ra TableR_a0xR_a0x 13472Num
Ra TableR_a0xR_a0x 141007Num
CalibrationDataCC Gain10.123mohm
CalibrationDataCC Delta10.147mohm
CalibrationDataCC Offset-1487num
CalibrationDataBoard Offset-12num
CalibrationDataInt Temp Offset0degC
CalibrationDataExt Temp Offset0degC
CalibrationDataVoltage Divider4998mVolt
CalibrationCurrentDeadband5mAmp
SecurityCodesSealed to Unsealed36720414hex
SecurityCodesUnsealed to Fullffffffffhex
SecurityCodesAuthen Key31234567hex
SecurityCodesAuthen Key289abcdefhex
SecurityCodesAuthen Key1fedcba98hex
SecurityCodesAuthen Key076543210hex

BQ34Z100: TI High Cell bqProduction SBB bq34z100 can't start, I get an error, an error has occurred see the log file

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Part Number:BQ34Z100

Our customer met question as blow:

TI High Cell bqProduction SBB bq34z100 can't start, I get an error, an error has occurred see the log file

!SESSION Sat Jul 28 10:52:56 CST 2018 ------------------------------------------
!ENTRY org.eclipse.equinox.launcher 4 0 2018-07-28 10:52:56.140
!MESSAGE Exception launching the Eclipse Platform:
!STACK
java.lang.UnsupportedClassVersionError: org/eclipse/core/runtime/adaptor/EclipseStarter (Unsupported major.minor version 50.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:666)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
at org.eclipse.equinox.launcher.Main.run(Main.java:1515)

BQ27542-G1: HDQ Communication between BQ27542 and msm8953(Qualcomm processor)

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Part Number:BQ27542-G1

When I connect BQ27542 with msm8953 with HDQ communication, I find that BQ27542 do not response. I follow the directions in datasheet and get the waveform in oscilloscope. HDQ is pulled down for 500us and then pulled up for 60us.

The code in msm8953 as following shown.
 gpio_set_value(onewire_gpio,0);
 w1_delay(500);
 gpio_set_value(onewire_gpio,1);
 w1_delay(60); 
 gpio_direction_input(onewire_gpio);

BQ40Z50-R1: How to use BQ40Z50-R1 to a battery with larger capacity?

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Part Number:BQ40Z50-R1

As the BQ40A50 datasheet shown, the maximum capcity is 32000mAh with overcurrent limit 32A. If I use it for battey pack with 15 parallel and 4 series. And the total capacity is 37500mAh with overcurrent limit 150A. I set in bq Studio the current value of one fifth of the actual value(the calibration current 1A for 5A) , the design capacity 7500mAh(one fifth of the actual value), the design capacity cWh 11100cAh(7.5Ah*4*3.7/10). Other items keep the default. However, the fault capacity of learning cycle is incorrect. How Can I use bq40Z50 as one fifth of the actual value? 

BQ33100: Difference in Offset from New Datasheet and Old Datasheet

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Part Number:BQ33100

Hello,

I have a customer who has seen this:

Calibration (Data section) offset:

We found a gap between the calibration offsets values as listed in the old datasheet comparing to the new datasheet.

As we see in the listed datasheet snapshots, there is a shift in the calibration fields starting from offset 24. For example, in the new datasheet, ‘cc offset’ is located at offset 26 while according to the old datasheet it is located at offset 24.

In our implementation only “CC offset” and “board offset” are affected (zero values of other fields)
Field 104:24 = 0x00    // Board Offset
Field 104:25 = 0x00    // Board Offset
Field 104:26 = 0x59   // CC Offset
Field 104:27 = 0x0c   // CC Offset
Field 104:28 = 0x00
Field 104:29 = 0x00
Field 104:30 = 0x00

We can see that offset 26-27 (cc offset) is not zero as it should be but has the value of 'board offset'.

(1) Can you please explain where does this gap came from ?

(2) Can you please describe what is the impact of mixing between CC and Board offset ?

(3) Up to how many Bytes is they size of the volatile and non-volatile memory?

They are using:

1-      The bqEVSW tool version is : 0.9.92.

2-      The firmware version is :  0x0015 – reading the firmware version via ManufacturerAccess register using command 0x2 as it mentioned in the BQ datasheet.

Could you please help answer the bolded questioned?


BQ35100: Can it be used with Alkaline Primary Cells?

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Part Number:BQ35100

My application will consist of the following:
2-4 cells of Alkaline batteries (Zinc + Mn02)
Operational range of 2.2V to 12V.

1) Can the BQ35100 be used with alkaline batteries?

2) Can it go up to 12V?
The datasheet states an absolute max rating of 5.5V but the demo kit user guide lists a Vbatt+ to Vbatt- of 32V.

3) Are there any TI products that would provide coulomb counting and possibly voltage measurement for an alkaline cell application?

Thanks!

BQ27542-G1: Erratic jumps in the capacity reported by the fuel gauge

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Part Number:BQ27542-G1

Our BQ27542-G1 fuel gauge has been calibrated using TI BQ Studio, and the calibration files are flashed over I2C in production.  Unfortunately, units exhibit frequent jumps in the battery capacity reported by the fuel gauge while charging / discharging.   Additionally, the remaining capacity vs. the unfiltered remaining capacity vs. the accumulated charge do not always align. Example charge cycle is shown below - where erratic capacity jumps are depicted by red lines:

  

Below is the configuration we are using:

* Texas Instruments Data Flash File

* File created Mon Jan 15 08:37:52 2018

*

* Device Number 542

* Firmware Version 2.01

* Build Number not available

* Order Number not available

*

* bqz Device Number 0542

* bqz Firmware Version 2.01

* bqz Build Number 1

*

* Field Order: Class name

Subclass name

Parameter name

Parameter Value

Display Units

Calibration

Data

CC Gain

5.311

mOhm

Calibration

Data

CC Delta

5.289

mOhm

Calibration

Data

CC Offset

-1478

-

Calibration

Data

Board Offset

1

Counts

Calibration

Data

Int Temp Offset

0

°C

Calibration

Data

Ext Temp Offset

0

°C

Calibration

Data

Pack V Offset

0

mV

Calibration

Current

Filter

239

Num

Calibration

Current

Deadband

5

mA

Calibration

Current

CC Deadband

17

Counts

Configuration

Charge

Charging Voltage

4200

mV

Configuration

Charge Termination

Taper Current

500

mA

Configuration

Charge Termination

Min Taper Capacity

25

mAh

Configuration

Charge Termination

Taper Voltage

100

mV

Configuration

Charge Termination

Current Taper Window

20

s

Configuration

Charge Termination

TCA Set %

-1

%

Configuration

Charge Termination

TCA Clear %

93

%

Configuration

Charge Termination

FC Set %

-1

%

Configuration

Charge Termination

FC Clear %

92

%

Configuration

Charge Termination

DODatEOC Delta T

5

°C

Configuration

JEITA

T1 Temp

0

°C

Configuration

JEITA

T2 Temp

10

°C

Configuration

JEITA

T3 Temp

45

°C

Configuration

JEITA

T4 Temp

50

°C

Configuration

JEITA

T5 Temp

60

°C

Configuration

JEITA

Temp Hys

1

°C

Configuration

JEITA

T1-T2 Chg Voltage

4200

mV

Configuration

JEITA

T2-T3 Chg Voltage

4200

mV

Configuration

JEITA

T3-T4 Chg Voltage

4200

mV

Configuration

JEITA

T4-T5 Chg Voltage

4200

mV

Configuration

JEITA

T1-T2 Chg Current

50

%

Configuration

JEITA

T2-T3 Chg Current

80

%

Configuration

JEITA

T3-T4 Chg Current

80

%

Configuration

JEITA

T4-T5 Chg Current

80

%

Configuration

Registers

Pack Configuration

217f

Flag

Configuration

Registers

Pack Configuration B

87

Flag

Configuration

Registers

Pack Configuration C

a9

Flag

Configuration

Registers

Pack Configuration D

57

Flag

Configuration

HDQ

Host Interrupt Tries

3

Num

Configuration

Power

Flash Update OK Voltage

3400

mV

Configuration

Power

Sleep Current

15

mA

Configuration

Power

Hibernate Current

8

mA

Configuration

Power

Hibernate Voltage

2950

mV

Configuration

Power

FS Wait

0

s

Configuration

Lifetime Data

Lifetime Max Temp

37.9

°C

Configuration

Lifetime Data

Lifetime Min Temp

20

°C

Configuration

Lifetime Data

Lifetime Max Pack Voltage

4342

mV

Configuration

Lifetime Data

Lifetime Min Pack Voltage

3174

mV

Configuration

Lifetime Data

Lifetime Max Chg Current

1524

mA

Configuration

Lifetime Data

Lifetime Max Dsg Current

-2490

mA

Configuration

Lifetime Temp Samples

LT Flash Cnt

153

Num

Configuration

Lifetime Resolution

LT Temp Res

1

°C

Configuration

Lifetime Resolution

LT V Res

25

mV

Configuration

Lifetime Resolution

LT Cur Res

100

mA

Configuration

Lifetime Resolution

LT Update Time

60

s

Configuration

Safety

OT Chg

55

°C

Configuration

Safety

OT Chg Time

5

s

Configuration

Safety

OT Chg Recovery

50

°C

Configuration

Safety

OT Dsg

60

°C

Configuration

Safety

OT Dsg Time

5

s

Configuration

Safety

OT Dsg Recovery

55

°C

Configuration

Manufacturer Data

Pack Lot Code

1

Hex

Configuration

Manufacturer Data

PCB Lot Code

1

Hex

Configuration

Manufacturer Data

Firmware Version

2

Hex

Configuration

Manufacturer Data

Hardware Revision

1

Hex

Configuration

Manufacturer Data

Cell Revision

1

Hex

Configuration

Manufacturer Data

DF Config Version

4

Hex

Configuration

Integrity Data

All DF Checksum

0

Hex

Configuration

Integrity Data

Static Chem DF Checksum

79ce

Hex

Configuration

Integrity Data

Static DF Checksum

0

Hex

Configuration

Data

Design Voltage

3700

mV

Configuration

Data

Cycle Count

4

Num

Configuration

Data

CC Threshold

5400

mAh

Configuration

Data

Design Capacity

6000

mAh

Configuration

Data

Design Energy

22200

mWh

Configuration

Data

SOH Load I

-600

mA

Configuration

Data

TDD SOH Percent

80

%

Configuration

Data

ISD Current

10

hourrate

Configuration

Data

ISD I Filter

127

Num

Configuration

Data

Min ISD Time

7

hour

Configuration

Data

Design Energy Scale

1

Num

Configuration

Discharge

SOC1 Set Threshold

600

mAh

Configuration

Discharge

SOC1 Clear Threshold

900

mAh

Configuration

Discharge

SOCF Set Threshold

120

mAh

Configuration

Discharge

SOCF Clear Threshold

300

mAh

Configuration

Discharge

BL Set Volt Threshold

3100

mV

Configuration

Discharge

BL Set Volt Time

2

s

Configuration

Discharge

BL Clear Volt Threshold

3200

mV

Configuration

Discharge

BH Set Volt Threshold

4500

mV

Configuration

Discharge

BH Volt Time

2

s

Configuration

Discharge

BH Clear Volt Threshold

4400

mV

Gas Gauging

Current Thresholds

Dsg Current Threshold

220

mA

Gas Gauging

Current Thresholds

Chg Current Threshold

250

mA

Gas Gauging

Current Thresholds

Quit Current

210

mA

Gas Gauging

Current Thresholds

Dsg Relax Time

240

s

Gas Gauging

Current Thresholds

Chg Relax Time

240

s

Gas Gauging

Current Thresholds

Max IR Correct

400

mV

Gas Gauging

State

Qmax Cell 0

5800

mAh

Gas Gauging

State

Update Status

6

Hex

Gas Gauging

State

V at Chg Term

4341

mV

Gas Gauging

State

Avg I Last Run

-1990

mA

Gas Gauging

State

Avg P Last Run

-7016

pwr

Gas Gauging

State

Delta Voltage

15

mV

Gas Gauging

State

T Rise

50

Num

Gas Gauging

State

T Time Constant

1000

Num

Gas Gauging

IT Cfg

Load Select

1

Num

Gas Gauging

IT Cfg

Load Mode

1

Num

Gas Gauging

IT Cfg

Max Res Factor

15

Num

Gas Gauging

IT Cfg

Min Res Factor

5

Num

Gas Gauging

IT Cfg

Ra Filter

800

Num

Gas Gauging

IT Cfg

Res V Drop

50

mV

Gas Gauging

IT Cfg

Fast Qmax Start DOD %

92

%

Gas Gauging

IT Cfg

Fast Qmax End DOD %

96

%

Gas Gauging

IT Cfg

Fast Qmax Start Volt Delta

200

mV

Gas Gauging

IT Cfg

Fast Qmax Current Threshold

4

hourrate

Gas Gauging

IT Cfg

Qmax Capacity Err

2

%

Gas Gauging

IT Cfg

Max Qmax Change

10

%

Gas Gauging

IT Cfg

Terminate Voltage

3200

mV

Gas Gauging

IT Cfg

Term V Delta

200

mV

Gas Gauging

IT Cfg

ResRelax Time

500

s

Gas Gauging

IT Cfg

User Rate-mA

1200

mA

Gas Gauging

IT Cfg

User Rate-Pwr

3750

pwr

Gas Gauging

IT Cfg

Reserve Cap-mAh

200

mAh

Gas Gauging

IT Cfg

Reserve Energy

400

egy

Gas Gauging

IT Cfg

Max DeltaV

200

mV

Gas Gauging

IT Cfg

Min DeltaV

0

mV

Gas Gauging

IT Cfg

Max Sim Rate

1

hourrate

Gas Gauging

IT Cfg

Min Sim Rate

20

hourrate

Gas Gauging

IT Cfg

Ra Max Delta

54

mOhm

Gas Gauging

IT Cfg

Trace Resistance

0

mOhm

Gas Gauging

IT Cfg

Downstream Resistance

0

mOhm

Gas Gauging

IT Cfg

Qmax Max Delta %

5

%

Gas Gauging

IT Cfg

Qmax Bound %

110

%

Gas Gauging

IT Cfg

DeltaV Max Delta

10

mV

Gas Gauging

IT Cfg

Max Res Scale

5000

Num

Gas Gauging

IT Cfg

Min Res Scale

200

Num

Gas Gauging

IT Cfg

Fast Scale Start SOC

10

%

Gas Gauging

IT Cfg

Fast Scale Load Select

3

Num

Gas Gauging

IT Cfg

Charge Hys V Shift

40

mV

Gas Gauging

IT Cfg

RaScl OCV Rst Temp Thresh

15

°C

Gas Gauging

IT Cfg

Max Allowed Current

6000

mA

Gas Gauging

IT Cfg

Max Current Pulse Duration

10

s

Gas Gauging

IT Cfg

Max Current Interrupt Step

500

mA

Gas Gauging

IT Cfg

Predict Outside Temp Time

2000

s

Gas Gauging

IT Cfg

Termination Voltage Valid Time

2

s

Security

Codes

Sealed to Unsealed MSB

3672

Hex

Security

Codes

Sealed to Unsealed LSB

414

Hex

Security

Codes

Unsealed to Full MSB

ffff

Hex

Security

Codes

Unsealed to Full LSB

ffff

Hex

Security

Codes

Authen Key3 MSB

123

Hex

Security

Codes

Authen Key3 LSB

4567

Hex

Security

Codes

Authen Key2 MSB

89ab

Hex

Security

Codes

Authen Key2 LSB

cdef

Hex

Security

Codes

Authen Key1 MSB

fedc

Hex

Security

Codes

Authen Key1 LSB

ba98

Hex

Security

Codes

Authen Key0 MSB

7654

Hex

Security

Codes

Authen Key0 LSB

3210

Hex

System Data

Manufacturer Info

Block A 0

0

Hex

System Data

Manufacturer Info

Block A 1

0

Hex

System Data

Manufacturer Info

Block A 2

0

Hex

System Data

Manufacturer Info

Block A 3

0

Hex

System Data

Manufacturer Info

Block A 4

0

Hex

System Data

Manufacturer Info

Block A 5

0

Hex

System Data

Manufacturer Info

Block A 6

0

Hex

System Data

Manufacturer Info

Block A 7

0

Hex

System Data

Manufacturer Info

Block A 8

0

Hex

System Data

Manufacturer Info

Block A 9

0

Hex

System Data

Manufacturer Info

Block A 10

0

Hex

System Data

Manufacturer Info

Block A 11

0

Hex

System Data

Manufacturer Info

Block A 12

0

Hex

System Data

Manufacturer Info

Block A 13

0

Hex

System Data

Manufacturer Info

Block A 14

0

Hex

System Data

Manufacturer Info

Block A 15

0

Hex

System Data

Manufacturer Info

Block A 16

0

Hex

System Data

Manufacturer Info

Block A 17

0

Hex

System Data

Manufacturer Info

Block A 18

0

Hex

System Data

Manufacturer Info

Block A 19

0

Hex

System Data

Manufacturer Info

Block A 20

0

Hex

System Data

Manufacturer Info

Block A 21

0

Hex

System Data

Manufacturer Info

Block A 22

0

Hex

System Data

Manufacturer Info

Block A 23

0

Hex

System Data

Manufacturer Info

Block A 24

0

Hex

System Data

Manufacturer Info

Block A 25

0

Hex

System Data

Manufacturer Info

Block A 26

0

Hex

System Data

Manufacturer Info

Block A 27

0

Hex

System Data

Manufacturer Info

Block A 28

0

Hex

System Data

Manufacturer Info

Block A 29

0

Hex

System Data

Manufacturer Info

Block A 30

0

Hex

System Data

Manufacturer Info

Block A 31

0

Hex

System Data

Manufacturer Info

Block B 0

0

Hex

System Data

Manufacturer Info

Block B 1

0

Hex

System Data

Manufacturer Info

Block B 2

0

Hex

System Data

Manufacturer Info

Block B 3

0

Hex

System Data

Manufacturer Info

Block B 4

0

Hex

System Data

Manufacturer Info

Block B 5

0

Hex

System Data

Manufacturer Info

Block B 6

0

Hex

System Data

Manufacturer Info

Block B 7

0

Hex

System Data

Manufacturer Info

Block B 8

0

Hex

System Data

Manufacturer Info

Block B 9

0

Hex

System Data

Manufacturer Info

Block B 10

0

Hex

System Data

Manufacturer Info

Block B 11

0

Hex

System Data

Manufacturer Info

Block B 12

0

Hex

System Data

Manufacturer Info

Block B 13

0

Hex

System Data

Manufacturer Info

Block B 14

0

Hex

System Data

Manufacturer Info

Block B 15

0

Hex

System Data

Manufacturer Info

Block B 16

0

Hex

System Data

Manufacturer Info

Block B 17

0

Hex

System Data

Manufacturer Info

Block B 18

0

Hex

System Data

Manufacturer Info

Block B 19

0

Hex

System Data

Manufacturer Info

Block B 20

0

Hex

System Data

Manufacturer Info

Block B 21

0

Hex

System Data

Manufacturer Info

Block B 22

0

Hex

System Data

Manufacturer Info

Block B 23

0

Hex

System Data

Manufacturer Info

Block B 24

0

Hex

System Data

Manufacturer Info

Block B 25

0

Hex

System Data

Manufacturer Info

Block B 26

0

Hex

System Data

Manufacturer Info

Block B 27

0

Hex

System Data

Manufacturer Info

Block B 28

0

Hex

System Data

Manufacturer Info

Block B 29

0

Hex

System Data

Manufacturer Info

Block B 30

0

Hex

System Data

Manufacturer Info

Block B 31

0

Hex

Ra Tables

Ra0 Table

Ra Flag

55

-

Ra Tables

Ra0 Table

Ra 0

123

2^-10ohm

Ra Tables

Ra0 Table

Ra 1

148

2^-10ohm

Ra Tables

Ra0 Table

Ra 2

192

2^-10ohm

Ra Tables

Ra0 Table

Ra 3

202

2^-10ohm

Ra Tables

Ra0 Table

Ra 4

230

2^-10ohm

Ra Tables

Ra0 Table

Ra 5

251

2^-10ohm

Ra Tables

Ra0 Table

Ra 6

270

2^-10ohm

Ra Tables

Ra0 Table

Ra 7

294

2^-10ohm

Ra Tables

Ra0 Table

Ra 8

280

2^-10ohm

Ra Tables

Ra0 Table

Ra 9

261

2^-10ohm

Ra Tables

Ra0 Table

Ra 10

229

2^-10ohm

Ra Tables

Ra0 Table

Ra 11

225

2^-10ohm

Ra Tables

Ra0 Table

Ra 12

273

2^-10ohm

Ra Tables

Ra0 Table

Ra 13

340

2^-10ohm

Ra Tables

Ra0 Table

Ra 14

514

2^-10ohm

Ra Tables

Ra0x Table

Ra Flag

0

-

Ra Tables

Ra0x Table

Ra 0

123

2^-10ohm

Ra Tables

Ra0x Table

Ra 1

148

2^-10ohm

Ra Tables

Ra0x Table

Ra 2

192

2^-10ohm

Ra Tables

Ra0x Table

Ra 3

202

2^-10ohm

Ra Tables

Ra0x Table

Ra 4

230

2^-10ohm

Ra Tables

Ra0x Table

Ra 5

251

2^-10ohm

Ra Tables

Ra0x Table

Ra 6

286

2^-10ohm

Ra Tables

Ra0x Table

Ra 7

311

2^-10ohm

Ra Tables

Ra0x Table

Ra 8

297

2^-10ohm

Ra Tables

Ra0x Table

Ra 9

276

2^-10ohm

Ra Tables

Ra0x Table

Ra 10

243

2^-10ohm

Ra Tables

Ra0x Table

Ra 11

238

2^-10ohm

Ra Tables

Ra0x Table

Ra 12

289

2^-10ohm

Ra Tables

Ra0x Table

Ra 13

360

2^-10ohm

Ra Tables

Ra0x Table

Ra 14

544

2^-10ohm

BQ34Z100:

$
0
0

Part Number:BQ34Z100

Team, 

My customer is asking:

Per the datasheets for the BQ34Z100 and the BQ34Z100-G1, the manufacture date uses the following function to translate to and from the value stored in flash:

 

The function only allows for 8 months to be stored (256 / 32 = 8). This causes the undesired behavior of having multiple valid dates translate to a single stored value. For example, September 1st, 1980 and January 1st, 1981 both map to decimal 289

 In our software, we have moved one bit from the year to the month, resulting in the following function:

 Day + Month*32 + (Year – 1980)*512

 This seems to have worked for us, but is this how it is intended to be used? 

Thanks

Viktorija

 

BQ20Z45-R1: CFETF Failure Even Though the Charge FET is Off

$
0
0

Part Number:BQ20Z45-R1

We under-charge some batteries in our product line.  Some chargers do not communicate with our batteries and are over-charged due to the settings in the gg file.  We were under the impression that when a full charge happens, the charge FET gets pulled (at some point) and no current can flow.  It seems that the charge FET gets pulled andwe get a CFETF permanent failure, even with a 20 second failure time.  

How is current still flowing where we get this error?

Is there any way to prevent this failure?


BQ34Z100-G1: BQ34Z100-G1: Will charging voltage affect reported fuel gauge SOC?

$
0
0

Part Number:BQ34Z100-G1

Hello,

We have a BQ34z100-G1.  

- When our battery is about fully charged our battery is being trickle charged with @~200 mA

- When our battery is low it is being charged @ ~2 amps

Will the charging voltages affect the calculated SOC?

Will any of the values in the BQ34z100-G1 be updated through normal use or do these remain the same as originally programmed?

BQ78350: BQ78350

$
0
0

Part Number:BQ78350

Eval Board: BQ76940EVM

Software: Battery Management Studio (bqStudio)

Interface: EV2400

I configured the "AFE Cell Map" in the following way:

Now, my eval board do not boot-up.

Is there any way that I can return to previous state. I am using 12 cells, and I am NOT using Cell 4, Cell 9, and Cell 14.

Thanks in advanced

BQ20Z45: CFETF false triggering in production

$
0
0

Part Number:BQ20Z45

I currently have a design implementing the BQ20Z45-R1 with a few thousand units deployed in the field.  Customers have started to find that their batteries are failing prematurely and sending them back.  Upon testing the packs we have found that CFETF permanent failures have occurred in every case.  When it was first discovered we updated our .gg file settings surrounding FET failure to be 100mA of current detected for 20 seconds.  Even after this update we have found a few cases where the failures have occurred again.  I find it hard to believe that once the CFET shuts off we are having a continual current flow because the FETs are operating normally and are not damaged at all.  What direction could you give me for helping to find root cause?


BQ2050: BQ2050 debug software

$
0
0

Part Number:BQ2050

Hi Ti's experts,

I have a case which need use BQ2050,  I cannot change it to Bq34z100, because it is the solution specified by the end customer.

I can not find the bq2050 debug software in Ti website.  So could you help to share me the BQ2050 software?

BQ27545-G1: I2C to HDQ command and seal command?

$
0
0

Part Number:BQ27545-G1

Dear TI Expert,

My customer want to design MP and calibrate equipment of BQ27545. They want to know the command of  "I2C to HDQ" and "seal". Could you kindly advise? Or Where we can find such command manual ?  Thanks a lot.

BQ27510-G3: How can the Battery Gauge be forced into low power mode?

$
0
0

Part Number:BQ27510-G3

For an upcoming design, our electrical engineer has asked that the software team place all of the components into their lowest power state so that he can assess whether or not we have any stray paths consuming power (e.g., a pull-up and a pull-down that together are causing cross-conduction that wastes power).

We've got our microprocessors behaving with, for example, our MSP430s idling stuck in LPM3 mode.

But I can't for the life of me figure out:

  1. What I need to do to our BQ27510-G3 Battery Gauge to force it into a low power mode, and
  2. How to prove that I've done so (other than to maybe see some further drop in overall Vcc current consumption).

Can someone provide me with some bread crumbs? Is there a recipe that, regardless of our Battery Gauge Flash configuration, will put the Gauge into a low power mode (which I guess means the "HIBERNATING" or "BATTERY REMOVED" state). Is there an unambiguous external indication that the Battery Gauge has achieved that mode?

Atlant

BQ20Z90: SOC Variation

$
0
0

Part Number:BQ20Z90

We're making release decisions based on the State of Charge (SOC) reported through our 'battery talker'.  Has accurate is the SOC measurement?  Does anyone have data on the amount of measurement error?

BQ27510-G3: What I2C operations actually cause "BAT_INSERT", "BAT_REMOVE", "SET_HIBERNATE", "CLEAR_HIBERNATE", "SET_SNOOZE", "CLEAR_SNOOZE", "SEALED", IT_ENABLE", and "RESET&am

$
0
0

Part Number:BQ27510-G3

In reading the "Technical Reference Manual" (SLUUA97) for the BQ27510-G3 Battery Gauge, Section 2.1
describes a set of Control() subcommands:

Now for the subcommands that read data, the I2C bus operation is obvious and straightforward:

Transmit an I2C message to the Battery Gauge that contains { 0, Subcommand_LSB, Subcommand_MSB }
and then receive an I2C message that contains two data bytes (one of which may not be meaningful,
depending on which item we're reading).

But for the subcommands that I've highlighted that PROVOKE AN ACTION, what does one do? Does
"reading" them (as described above) do the trick (as a side-effect of the read)? Or is there a different
I2C sequence that must be executed. I can't find anything in the TRM or Data Sheet that seems to
answer this.

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