BQ40Z50: schematics review help

Bruce li

Genius 5580 points

Part Number: BQ40Z50

Dear TI Experts,

Could you kindly help to review below schematics of BQ40z50? Thanks a lot.

1) Customer don't need LED function

2) Customer don't need pre-charge function

3) Customer only need 2 NTC

BQ40Z50(1).pdf

over 6 years ago

0 Jasper Yi over 6 years ago

TI__Intellectual 1365 points

Hi Bruce,

1. Recommend to use 10M ohm in between the gate and source of Q1
2. /DISP(Pin 17) should be connected to Vss if the LED feature is not used.
3. Recommend to remove filter cap ( C8 and C9). It would cause voltage across sense resistor drift if the layout is not designed correctly.

0 Bruce li over 6 years ago in reply to Jasper Yi

Genius 5580 points

Dear Jasper,
Got it, thanks a lot your support.

Power management

Power management forum

BQ40Z50: schematics review help