• BQ25120AEVM: BQ25120A SYS output voltage is not stable as the user's guide say when the load is connected

  

  user4802061

  TI Thinks Resolved

  Part Number: BQ25120AEVM Other Parts Discussed in Thread: BQ25120A BQ25120A SYS output voltage is not stable when connected to the load, I connected a load to the BQ25120AEVM, and measured the output voltage, the voltage chaged obviously when I change…

  • over 6 years ago
  • Power management
  • Power management forum
Answered

• BQ25120AEVM: could not activate "Active Battery Mode" on EVM

  

  Hyobin Yang

  Resolved

  Part Number: BQ25120AEVM Other Parts Discussed in Thread: BQ25120A , BQSTUDIO , BQ25121A I am using bq25120a EVM to evaluate power management circuit. It works well while Vin(5V supplied by USB) exists, however if I get rid of Vin the whole module does not…

  • Resolved

  • over 6 years ago
  • Power management
  • Power management forum
Answered

• BQ25120AEVM: Is there any method to measure current consumption of the chip?

  

  Hyobin Yang

  Resolved

  Part Number: BQ25120AEVM Other Parts Discussed in Thread: BQ25120A , BQ25121A Hello. I'd like to measure the current consumption of the IC to verify the number suggested by datasheet. I am powering the EVM with SMU 5V with no load on DC/DC converter…

  • Resolved

  • over 6 years ago
  • Power management
  • Power management forum

• RE: BQ25120A: Finding the behaviour of the device without any officially published simulation model

  

  Nick Brylski

  Hello Srinjay, We provide these specs for buck converter and LDO in the datasheet electrical characteristics table. For evaluation I suggest you order one of the EVM available here: https://www.ti.com/tool/BQ25120AEVM Best regards, Nick

  • over 3 years ago
  • Power management
  • Power management forum
Answered

• BQ25120: Removing the IN voltage causes voltage regulation on SW to change from the set voltage of 1.8V to 3.5V

  

  Bruce Thompson2

  Resolved

  Part Number: BQ25120 Other Parts Discussed in Thread: , EV2400 I am using the bq25120aevm development board. I have a lithium ion battery connected to J7 and a usb 5v charger connected to J3. I have the chip set up to output 1.8V on the SW pin. When I…

  • Resolved

  • over 4 years ago
  • Power management
  • Power management forum

• RE: BQ25120A: DC voltage capacitor derating

  

  Hauke Radtki

  Hi Sharafadeen, thanks for your reply. The BQ25120AEVM evaluation module uses one C1005X5R1E105K050BC capacitor on IN (and LS/LDO and BAT), which has an effective capacitance of 378nF at 5V rated input voltage. This clearly violates the requirement of…

  • over 5 years ago
  • Power management
  • Power management forum

• RE: BQ25120: The initialization of BQ25120 .

  

  weihan.ji

  Hi gautham, I'm sorry I'm on vacation for a while. 1. The voltage on the VSYS is 1.8v. 2.There was no response. 3. the CD pin is hign. I have bought a bq25120AEVM and have more tests.

  • over 7 years ago
  • Power management
  • Power management forum

• RE: BQ25120A: i can not access i2c in battery only using.

  

  Gautham

  Sunbae, Are you using the BQStudio with the BQ25120AEVM? You should see all the registers when the /CD pin is high. what is the battery voltage? regards, gautham

  • over 7 years ago
  • Power management
  • Power management forum

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