BQ2010: "learn" new battery capacity
Part Number:BQ2010I'm not able to have the bq2010 gas gauge "learn" new battery capacity. This is an old gauge and I wouldn't use it now but having issues with battery packs in the field. Scenario: say...
View ArticleBQ20Z60-R1_BQEVSW-SW: Evaluation Module EV2400
Part Number:BQ20Z60-R1_BQEVSW-SWHi,We have purchased the evaluation module EV2400 and need to talk to the BQ20Z60 device.As this device is not in the list of supported parts. How could we add this...
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TPS630242: Output Noise
Part Number:TPS630242Hi Team,Good morning, my customer is using the TPS630242 in their design and seeing a lot of noise on the output:The ripple is about 9-11mV and there is a 60 kHz sub-harmonic...
View ArticleSM72441: Use with only 2 MOSFETs
Part Number:SM72441Hi,Can I use it with just the 2 synchronous boost MOSFETs? There is no need in my application to buck the PV voltage (i.e. batt volts is always > PV volts)Second, I have an...
View ArticleBQ4050: Configuration - 2 Series Cells
Part Number:BQ4050Hello, I am trying to get all of the settings in the BQ4050 hammered out for proper operation. Is there a guide that explains what settings are imperative for operation? My current...
View ArticleTPS65381A-Q1: VCORE rail on TMS570LS3137
Part Number:TPS65381A-Q1Hi,In the TPS65381A datasheet it looks like VDD1 (linear regulator capable of 1.2V output for the Hercules) uses an external pass FET with no current or temp monitoring. Thus,...
View ArticleTPS74901: PSRR response
Part Number:TPS74901Customer is seeing issues with PSRR performance with the TPS74901. Voltage ripple from switching regulator feeding the LDO is too high at the output.Conditions: Vin = 4V, Vout =...
View ArticleLM2700MT-ADJEV: Board Modifications
Part Number:LM2700MT-ADJEVI attempted to modify this Eval board for a 12V input and 17V output based on the Webbench Design Report. I did the following:Added Cc2, 220pF Cap, using PN...
View ArticleLM22678: Incorrect output voltage using Rfbt and Rfbb
Part Number:LM22678I have designed a circuit that uses an LM22678-ADJ to output 10V. I followed the datasheet strictly when designing my circuit to ensure that every component matches the specs...
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TPS22942: Clarifying ON pin function, datasheet is ambiguous
Part Number:TPS22942Hello,I wanted to clarify whether the ON pin for TI part TPS22942 was active high or active low. Looking at the device comparison table in the datasheet, it states that the ON pin...
View ArticleTPS63020: Maximum allowable ESR for CIN and COUT?
Part Number:TPS63020Hello,I have a TPS63020 design (VIN: 3V to 3.6V, VOUT: 3.3V, IOUT(max): 2A) originally using ceramic CIN and COUT (68 uF each). Due to some availability issues, I am forced to...
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WEBENCH® Tools/LMR14030: LMR14030 output voltage drops with current load
Part Number:LMR14030Tool/software: WEBENCH® Design ToolsWe've built an LMR14030 supply using the reference schematic below. Problem is the output voltage drops with current loade.g.0A 5.06V1A...
View ArticleBQ27421-G1: Learning and termination voltage
Part Number:BQ27421-G1Hello, We've run learning curves for our battery and gotten a .fs file.Later it's turned out our termination voltage is not the 3.2V we input while doing the measurements but...
View ArticleUCD9090: Not able to detect Device ID on Digital Power Designer Software
Part Number:UCD9090Hello,I've attached USB to my computer and opened up the software. The Device displays as "Unknown".I don't see a reference to this issue on the Forum or User's Guide. Is there a...
View ArticleUCC28711: Poor cross regulation
Part Number:UCC28711Dear TI E2E TeamMy smps includes a UCC28711 (primary side regulation), I designed it for 4 outputs (2 of 12v and 2 of 24v). Output current is 0,2A form each outputThe input is 200...
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TPS2054B: USB Power Switch Odd Behavior.
Part Number:TPS2054BWe are having a very baffling issue with this USB Pwr switch. The design has been working for almost a year. On a recent PCBA build, the part doesn't supply power to "OUT3". Even if...
View ArticleBQ27GDK000EVM: End Task (Unexpected) using script control
Part Number:BQ27GDK000EVMHello,We are having some issues in order to generate the log file for the chem id characterization. The following is what we did before doing the testing (we are using a...
View ArticleBQ27GDK000EVM: Fast charge current higher than what's set in bqSTudio
Part Number:BQ27GDK000EVMHello,We are checking the discharge and charge current values when using the GDK and bqStudio but the numbers that we are getting for charge does not match to the fast charge...
View ArticleBQ2000: MOSFET selection based on reference schematic.
Part Number:BQ2000I am using the bq2000evm evaluation module which I tested and appears to work fine for my application.Since the Si3455DV appears to be limited in supply and I want so sub in a...
View ArticleTPS92612-Q1: Please tell me about TPS92612-Q1.
Part Number:TPS92612-Q1Hi, team.I have a question about TPS92612-Q1. Although this product has a maximum current of 150 mA,it can be turned on by setting R (SNS) to 0.7 Ω or less in "Figure 3 of the...
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