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BQ4050EVM-561: BQ4050EVM-561 Battery discharge not working

Part Number: BQ4050EVM-561
Other Parts Discussed in Thread: BQ25703A, BQ4050, , BQSTUDIO, EV2400

Hi Team,

I have a new BQ4050EVM-561 which I'm using to build a power bank proof of concept with battery charger BQ25703A EVM. To start with, my plan is to connect 3S(default configuration saved in Bq4050 flash) and test battery discharge. Unfortunately, I’m not seeing battery voltage on Pack+.

EVM configuration:

Cell configuration: 3S.

Sys Press pin shorted to GND.

Observations:

  1. Voltage on TSx pins.

  2. Voltage on 1) Fuse=0V. 2) 4P= 12.03V 3) VCC = 11.63V 4) CHG = 1.08V. 5) DSG = 0V.
  3. Pressing S2(LED display) did not show charge status on D5-D9.

Please provide your feedback.

Thanks
Prajith