BQ76952: BQ7695202 IC

Rahul Sharma

Intellectual 320 points

Part Number: BQ76952

Tool/software:

Dear TI Expert,

There is a balancing MOSFET integrated inside the BQ7695202 IC.

What is the forward voltage of body diode of that Balancing MOSFET?

What is the max. altitude where BQ7695202 IC will operate smoothly?

Thanks

Rahul Sharma

Lithion Power Private Limited

11 months ago

0 Alexis_H 11 months ago

TI__Genius 17755 points

Hello Rahul,

The forward voltage of the body diode of the balancing MOSFET is equal to or slightly more than the absolute maximum rating on the pin.

Section 7.1 Absolute Maximum Ratings in the BQ76952 Datasheet will help you determine where the IC will operate smoothly.

Best Regards,
Alexis

0 Rahul Sharma 11 months ago in reply to Alexis_H

Intellectual 320 points

Dear Sir,

We want to know forward voltage as soon D1 assume anode voltage is positive compared to cathode voltage of Body diode.

0 Alexis_H 11 months ago in reply to Rahul Sharma

TI__Genius 17755 points

Hello Rahul,

The forward voltage of the body diode, assuming the anode voltage is positive compared to the cathode voltage of the body diode, is ~0.3V.

Best Regards,
Alexis

0 Rahul Sharma 11 months ago in reply to Alexis_H

Intellectual 320 points

Hello Sir,

What is the drain current (Id) of internal balancing MOSFET@25degree?

What is the forward current of body diode of internal balancing MOSFET@25degree?

Thanks

Rahul Sharma

0 Alexis_H 11 months ago in reply to Rahul Sharma

TI__Genius 17755 points

Hello Rahul,

The drain current and the forward current of the body diode of the internal balancing MOSFET are not characterized.

The typical internal cell balance resistance (Rds_on) for the internal FET is 25 ohms.

Section 2.1 Internal Cell-Balancing Circuit Design in the Cell Balancing with BQ769x2 Battery Monitors application note, provides some more information on the FETs.

Best Regards,
Alexis

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BQ76952: BQ7695202 IC