BQ26100 Series
SHA-1/HMAC Based Security & Authentication IC w/SDQ Interface
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
SHA-1/HMAC Based Security & Authentication IC w/SDQ Interface
Part | Mounting Type | Operating Temperature [Max] | Operating Temperature [Min] | Supplier Device Package | Function | Interface | Package / Case | Type | Supplied Contents | Primary Attributes | Embedded | Utilized IC / Part |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ26100DRPR | Surface Mount | 85 °C | -40 °C | 6-VSON (3x3) | Battery Authorization | SDQ | 6-VDFN Exposed Pad | |||||
Texas Instruments BQ26100EVM | Anti Tamper and Security | Interface | Board(s), Cable(s) | Battery Authentication | BQ26100 |
Key Features
• Provides authentication of battery packs through SHA-1 engine based HMAC160-byte one-time programmable (OTP), 16-bytes EEPROMInternal time-base eliminates external crystal oscillatorLow-power operating modes:Active: < 50 µASleep: 8 µA typicalSingle-wire SDQ interfacePowers directly from the communication bus6-lead VSON packageProvides authentication of battery packs through SHA-1 engine based HMAC160-byte one-time programmable (OTP), 16-bytes EEPROMInternal time-base eliminates external crystal oscillatorLow-power operating modes:Active: < 50 µASleep: 8 µA typicalSingle-wire SDQ interfacePowers directly from the communication bus6-lead VSON package
Description
AI
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) construction. A unique 128-bit key is stored in each bq26100 device, allowing the host to authenticate each pack.
The bq26100 device communicates to the system over a simple one-wire bi-directional serial interface. The 5-kbits/s SDQ bus interface reduces communications overhead in the external microcontroller. The bq26100 device also derives power over the SDQ bus line via an external capacitor.
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) construction. A unique 128-bit key is stored in each bq26100 device, allowing the host to authenticate each pack.
The bq26100 device communicates to the system over a simple one-wire bi-directional serial interface. The 5-kbits/s SDQ bus interface reduces communications overhead in the external microcontroller. The bq26100 device also derives power over the SDQ bus line via an external capacitor.