TPS65185: Design clarification

NIKHITHA ANTONY

Intellectual 340 points

Part Number: TPS65185

Review the attached design.

5556.TPS651851_DISP PMIC.pdf

over 2 years ago

0 Gerard Copeland over 2 years ago

TI__Genius 10380 points

Hi,

I am reviewing the schematic and will provide feedback tomorrow.

Thanks,

Gerard

0 Gerard Copeland over 2 years ago in reply to Gerard Copeland

TI__Genius 10380 points

Hi,

Comments on this schematic:

It's recommended to place 0 ohm resistors (R663, R669, R694) after the corresponding output capacitor so that the output capacitor can be placed as close as possible to the pin.
R675 should be 1 MOhm to achieve VEE_FB = ~1 V for VEE = -20 V.
Please note this device has not been characterized with a VEE charge pump output current higher than 15 mA.
0.1 uF / 25 V is recommended for the VEE_D capacitor (C1127).

Thanks,

Gerard

0 NIKHITHA ANTONY over 2 years ago in reply to Gerard Copeland

Intellectual 340 points

There is a small change. The part that we are using is TPS651851. For this part also, the same design review comments. Or if there is any change. Please let me know.

0 Gerard Copeland over 2 years ago in reply to NIKHITHA ANTONY

TI__Genius 10380 points

Hi,

The same comments apply - the main difference for the TPS651851 is the higher current capability on the LDOs and charge pumps.

Thanks,

Gerard

Power management

Power management forum

TPS65185: Design clarification