• BQ2057C: Problem charging Li ion battery

  

  Pavlin Stoyanoff

  Part Number: BQ2057C Other Parts Discussed in Thread: BQ2057 , Greetings! I`m using BQ2057CTSTR for a very first time. Here is my schematic -> 8875.BQ2057.pdf I used figure 1 from the datasheet as a model. The problem is I burned the battery. I think…

  • over 3 years ago
  • Power management
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Answered

• BQ2057C: Is it possible to use 2 MOSFETs in parallel...?

  

  Alex Red

  Resolved

  Part Number: BQ2057C Hello TI experts, I need to use the device to charge a 10A/h Li-Ion battery pack using the P-Channel MOSFET configuration as per datasheet. As the requirement is a 2A / h charge rate, instead of searching of 'extreme' mosfets and…

  • Resolved

  • over 3 years ago
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• BQ2057C: BQ2057C little charge current

  

  Star Xu

  TI Thinks Resolved

  Part Number: BQ2057C Hi My customer use BQ2057C to charge battery. The current sense is 0.1 ohm, transistor is FZT788B, the actual charging current is only about 200mA in the case of 5V voltage, and can rise to more than 400 mA when it reaches above 5.4v…

  • over 5 years ago
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• BQ2057C: BQ2057C

  

  Rahul

  TI Thinks Resolved

  Part Number: BQ2057C Other Parts Discussed in Thread: BQ2057 , BQ24040 Hi, Kindly know how to calculate the RT1 & RT2 value of the NTC block resistor. Battery: 3.7V/2200mAh Battery has inbuilt thermistor resistor, value of 10K. Data sheet is attached…

  • over 5 years ago
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• BQ2057C: Reverse current flows on PNP Transistor , when input power remove

  

  Shinichi Inoue

  TI Thinks Resolved

  Part Number: BQ2057C Other Parts Discussed in Thread: BQ2057 , BQ24090 , BQ24001 , BQ24040 , Dear Specialists, My customer is considering BQ2057 and has inquiries. I would be grateful if you could advise. --- I am evaluating the circuit of datasheet P.7 (Figure…

  • over 4 years ago
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• RE: BQ2057C: BQ2057C

  

  user4995164

  my question is the same with "Walsh : BQ2057C: Why STAT pin is low level when reinsert battery to charger"

  • over 6 years ago
  • Power management
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• BQ2057C: Li ion battery charging IC from Solar panel

  

  naga reddy

  TI Thinks Resolved

  Part Number: BQ2057C Other Parts Discussed in Thread: BQ24650 , TIDA-00120 Dear sir, BQ2057C IC is suitable for Dua l lithium ion battery charging with Solar panel, BQ2057C IC is operated 4.5V to 15V ,1A output current ,can i give input Supply with…

  • over 6 years ago
  • Power management
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Answered

• BQ2057C: BQ2057CSN

  

  jyothi sravana

  Resolved

  Part Number: BQ2057C Other Parts Discussed in Thread: BQ2057 , BQ24040 , BQ24070 Hai, I am using BQ2057CSN Li-Ion charger IC to charge 3.7V Battery , Attached is my circuit FYR To disable TEMP SNS pin I am applying VCC/2 Voltage and battery is getting c…

  • Resolved

  • over 7 years ago
  • Power management
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• BQ2057C: On Connecting battery Potential drops to Battery terminal potenial

  

  Jagannath Sahoo Sahoo

  TI Thinks Resolved

  Part Number: BQ2057C Sir, I was trying to make a simple Li-ion based charger using TI Bq2057C IC. But while connecting it to the battery its potential drops to battery open circuit terminal potential. But when I did not connect the positive terminal of…

  • over 6 years ago
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• BQ2057C: Why STAT pin is low level when reinsert battery to charger

  

  Walsh

  TI Thinks Resolved

  Part Number: BQ2057C Hi, I have designed a chager using BQ2057C. The battery and charger is separate. When i need recharge the battery, i found the LED is off but there is charge current. Reappear process: 1. Charge the battery to full and the LED turn…

  • over 6 years ago
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