BQ26100 Datasheet - Texas Instruments

BQ26100 Battery Pack Security Authentication

The bq26100 device provides a method to authenticate battery packs, ensuring that only packs manufactured by authorized sub-contractors are used in the end application. The security is achieved using the SHA-1 hash function inside the widely adopted keyed-hash message authentication code (HMAC) cons.

BQ26100 Features

* 1 Provides authentication of battery packs through SHA-1 engine based HMAC

* 160-byte one-time programmable (OTP), 16-bytes EEPROM

* Internal time-base eliminates external crystal oscillator

* Low-power operating modes:

* Active: < 50 μA

* Sleep: 8 μA

BQ26100-etcTI.pdf