• BQ27220: How BQ27220 can be commanded to come out of SHUTDOWN

  

  Jefin George

  TI Thinks Resolved

  Part Number: BQ27220 Tool/software: In our design, we are using the BQ27220 as a fuel gauge, and the GPOUT pin is connected to the host through a 10k pull-up resistor (as per the datasheet). I need to know how the BQ27220 can be commanded to come out…

  • 8 days ago
  • Power management
  • Power management forum
Answered

• BQ27220: Inquiry for comparison between BQ28Z610-R1 and BQ27220 and BQ27Z746

  

  Grady Lee

  Resolved

  Part Number: BQ27220 Other Parts Discussed in Thread: BQ28Z610-R1 , , BQ27Z746 , BQ27546-G1 , BQ27Z558 , BQ27Z561-R2 Tool/software: Hi, TI expert. The customer is currently using BQ28Z610-R1 for the Battery Pack PCM of the PDA. Currently looking at BQ27220…

  • Resolved

  • 27 days ago
  • Power management
  • Power management forum

• BQ27220: Calibration of gauge when using a different sense resistor

  

  David-Alexandre PANETTO

  Part Number: BQ27220 Other Parts Discussed in Thread: BQSTUDIO Tool/software: I am "playing" with the BQ27220 for a new product we are working on in our company and these days trying to calibrate it with the BQ27220EVM744. The bqStudio tool…

  • 2 days ago
  • Power management
  • Power management forum

• BQ27220: BQ27220 cannot be unseal using bqstudio

  

  eajon chen

  TI Thinks Resolved

  Part Number: BQ27220 Tool/software: Hi TI team BQ27220 cannot be unseal using the I2C command, but it can be unseal using the button on the right. Here's why.

  • 4 months ago
  • Power management
  • Power management forum

• RE: BQ27220: Communication not working

  

  Adrian

  Hello Korey, Only other solution I can offer is to use BQStudio and EV2400 to see if you can read from the device. Regards, Adrian

  • 2 months ago
  • Power management
  • Power management forum

• BQ27220: Please review the schematic

  

  Chase Jeong

  TI Thinks Resolved

  Part Number: BQ27220 Tool/software: Dear TI experts, My customer drew their first schematic with BQ27220. Could you review this schematic? (10K pullups on I2C lines are attached in the other side.) Please let me know if there are any suggestions to…

  • 2 months ago
  • Power management
  • Power management forum

• BQ27220: some application questions of BQ27220

  

  Statham Su

  TI Thinks Resolved

  Part Number: BQ27220 Other Parts Discussed in Thread: BQ27426 , Tool/software: Hello Sir: Please refer our application as below 1. Max load around 2A 30s 2. Sleep current is under 1mA 3. This gauge will used on system side, and this battery pack will have…

  • 6 months ago
  • Power management
  • Power management forum
Answered

• BQ27220: BQ27220

  

  Neo Chang

  Resolved

  Part Number: BQ27220 Other Parts Discussed in Thread: BQSTUDIO , Q1: When I plug-in battery, and read data memory is unseal, right? The default of data memory is seal or unseal? as below: Q2: Unseal key is 0x36720414, right? as below: Q3: I write 30 00…

  • Resolved

  • 6 months ago
  • Power management
  • Power management forum
Answered

• RE: BQ27220: OTP Program without bqstudio

  

  Dominik Hartl11

  Resolved

  Hello, You can change the values bit-wise from a 0 to 1. So for example, you can program a value of 0x02, And then you can re-program the same parameter to 0x03 or 0x0A but not 0x00 or 0x08. Therefore the number of re-writes depends on the values that…

  • 3 months ago
  • Power management
  • Power management forum

• BQ27220: VDQ=0

  

  xueqi zhu

  Part Number: BQ27220 Other Parts Discussed in Thread: GPCCEDV Tool/software: Hello sir, I have a 2-cell 3.6-4.2V lithium battery parallel power supply handheld device, for some reason set 3.74V on low power shutdown, now the application BQ27220 measure…

  • 4 months ago
  • Power management
  • Power management forum

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