LM74700-Q1: output or-ing enabling reverse current
Part Number: LM74700-Q1Hi, I would like to use 2x LM74700 to protect 2x 18650 LiPo batteries against reverse polarity. The batteries are removable and there is a chance of wrong insertion in the...
View ArticleBQ24108: I’m looking for a charger to charge one Li-ion Battery cell up to 1.5A
Part Number: BQ24108Hi team,I’m looking for a charger to charge one Li-ion Battery cell up to 1.5A, It should have the following two indications:“0” for Charging State and blinking for charging...
View ArticleTwo Phase AC Voltage and current Monitoring: Shunt OR CT based solution.
Hi,I have an application where I need to Monitor (read and control) the Voltage and Current which is connected to the motors.I've stuck while choosing between CT and Shunt based solution.As I read the...
View ArticleBQ34Z100-G1: Temperature update delay
Part Number: BQ34Z100-G1Dear all When I test the BQ34Z100-G1 device,find the temperature update delay 5s ~20s from EV2300 tool after I change the resistance value of TS pin, but I let the...
View ArticleBQ24157: BQ24157 & BQ24158
Part Number: BQ24157Hi Team,My customer using both ICs and according to the datasheets, both have the same slave address (7 bit):0b1101011 But, both only respond to 0b1101010 can you please clarify...
View ArticleLM5001: Maximum duty cycle limit
Part Number: LM5001Hi there, If a particular circuit tries to push the LM5001 past its maximum duty cycle (nominally 85%), how will the LM50001 behave? Does the duty cycle saturate? Does the controller...
View ArticleBQ76PL455A-Q1: Negative temperature perfermance is poor
Part Number: BQ76PL455A-Q1Dear TI ExpertsAbout BQ76PL455A-Q1，When testing negative temperature, some PL455A has great error. We have done the cross-over experiments , found that IC with large error...
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LM5170EVM-BIDIR: when use boost mode, input voltage is 12V, but the output is...
Part Number: LM5170EVM-BIDIRLast week I had asked an issue about buck mode, now it is solved. Then I have tried the boost mode about the board (LM5170EVM-BIDIR), now I find an issue about the test...
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TPS1H100-Q1: PWM controll for TPS1H100.
Part Number: TPS1H100-Q1Dear Sir,My customer is using TPS1H100-Q1 and need PWM control by IN(pin3).when PWM of duty 50% input at IN (pin3). it happened undershoot about -40V for OUTPUT at OUT (pin...
View ArticleLM25118-Q1: suitable solution for Vin=3V-18V, Vo=13V, Iout=28A with AEC-Q100
Part Number: LM25118-Q1Hi team,Could you advise me if we have suitable solution for below requirement?Vin=3V-18V, Vo=13V, Iout=28A with AEC-Q100Is LM25118-Q1 or suitable?Thanks.Regards,Allen
View ArticleTPS2121: looking for power mux solution with higher input voltage rating
Part Number: TPS2121Dear expert,We are looking for power mux solution and find the close one is TPS2121.But the input voltage rating is not suitable.Did we have solution which with 36V input rating? If...
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TPS73133-EP: can TPS73133 enable reverse current protection all conditions?
Part Number: TPS73133-EPHiTPS73101 has reverse current when Vfb is more than 1V above VIN. its Vfb reference voltage is 1.2V, if TPS73101 is set to 3.3V.so when input voltage is 0V and output is 3.3V,...
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TPS65150-Q1: schematic review
Part Number: TPS65150-Q1Dear Team,Could you please help check below schematic?Input voltage is 3.3V, output LCD_AVDD=11.6V, 80mA. VGH = 22V, 0.6 mA. VGL = -9V, 0.6 mA.Thanks & Best Regards,Sherry
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TPS62088: max output discharge spec
Part Number: TPS62088Hi, My customer is wondering what is the max spec to output discharge function? Because the discharge is too fast currently, so customer need to know about the maximum spec. Please...
View ArticleTPS51200A-Q1: Vf change
Part Number: TPS51200A-Q1Hi，The reference voltage changed from 0.675 to 0.95V after the chip was input into the program，What could be the reason？
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LM5069: MOSFET get damaged in hot-short test,Gate Source Drain are short...
Part Number: LM5069This is my sch,I've changed my design on the PCB board.The preference of the components are in the caculate sheets.I want the LM5069 can be a switch that can hold 30A and 50A...
View ArticleUCC28700-Q1: Enable / Disable of UCC28700
Part Number: UCC28700-Q1Hello,We have a Flyback converter with UCC28700. Is there a way to enable / disable the UCC28700 like UCX84X Current-Mode PWM Controllers (pulling the COMP pin to ground would...
View ArticleLM350A: Voltage adjustable range
Part Number: LM350AHi there,Just want to check LM350A output voltage range, thanks.
View ArticleBQ77PL900: Can Cell balance and protect 13-Series Cells with 2 BQ77PL900?
Part Number: BQ77PL900Hello,Customer wants to use BQ77PL900 for cell balancing and protection.But customer's spec changed to 13S1P battery pack.Can customer use two BQ77PL900 to protect and cell...
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LM2679: LM2679 DC-DC Converter - Output Voltage Problem
Part Number: LM2679HelloI have a project using DC-DC power converter to control LED with input voltage of 24 VDC and output voltage of 12V 2A. In this project, LM2679T-ADJ is used to adjust the output...
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