BQ76952: NFET DRIVE

Beida Song

Part Number: BQ76952

Tool/software:

Hi Expert,

For the reference schematic, the two NFET is Drain to Drain architecture. Whether Source to Source architecture is also available like below figure? What's the difference between the two architectures?

6 months ago

0 Alexis_H 6 months ago

TI__Genius 17705 points

Hello Beida,

Our internal driver only supports high-side FETs and does not support common source configuration, so we do not have any reference schematics show-casing this architecture.

This forum post I found may help explain the difference between the two architectures better: Common-Source/drain MOSFETs.

Best Regards,
Alexis

0 Beida Song 6 months ago in reply to Alexis_H

TI__Intellectual 770 points

Hi Alexis，

What do you mean is our driver only support high-side FETs common drain configuration? Can you give a simply description for internal driver?

0 Alexis_H 6 months ago in reply to Beida Song

TI__Genius 17705 points

Hello Beida,

Beida Song said:
our driver only support high-side FETs common drain configuration?

Correct.

Beida Song said:
Can you give a simply description for internal driver?

This previous post may help explain: Can I connect CHG/DSG FETs in Common Source Configuration.

Best Regards,
Alexis

Power management

Power management forum

BQ76952: NFET DRIVE