BQ28550 Datasheet PDF – Battery Gas Gauge and Protection

Part Number: BQ28550

Function: Battery Gas Gauge and Protection

Package: VSON 12 Pin Type

Manufacturer: Texas Instruments

Image and Pinouts:

BQ28550 datasheet



The BQ28550 is Single Cell Li-Ion Battery Gas Gauge and Protection.

The Texas Instruments bq28550-R1 battery gas gauge provides current and voltage protection, and secure, SHA-1/HMAC authentication for single-cell Li-Ion battery packs. Designed for battery-pack integration, the bq28550-R1 requires host microcontroller firmware support for implementation. A system processor communicates with the bq28550R1 using a serial interface to obtain remaining battery capacity, system run-time predictions, and other critical battery information.


1. Records Battery Gas Gauge Information

2. Protection Functions Help to Prevent:

(1) Short-Circuit

(2) Overcurrent Charge and Discharge

(3) Overvoltage Charge (Overcharge)

(4) Undervoltage (Over-Discharge)

3. Firmware Control of Discharge FET

4. SHA-1/HMAC Battery Authentication


1. Tablet PCs

2. Digital Still and Video Cameras

3. Handheld Terminals

4. MP3 or Multimedia Players

Other data sheets are available within the file:

BQ28550DRZR, BQ28550DRZR-R1,BQ28550DRZT, BQ28550DRZT-R1


BQ28550 Datasheet PDF Download

BQ28550 pdf