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Battery Pack Security & Authentication IC For Portable Applications (bqSECURE) (Rev. A)
Texas Instruments
Description
The bq26150 provides a method to authenticate battery packs, ensuring that only packs manufactured by authorized sub-contractors are used in the end application. The bq26150 uses a 96-bit unique device ID, device unique 16-bit seed, and a 16-bit device specific CRC to provide security. The device ID, CRC seed, and CRC polynomial coefficients are stored securely in each bq26150 device, allowing the host to authenticate each pack. The bq26150 communicates to the system over a simple one-wire, bidirectional serial interface. The 5 kbits/s HDQ bus interfaces reduces communications overhead in the external microcontroller. The bq26150 also uses the HDQ bus to charge an external capacitor that provides power to the bq26150.
Features
Provides Authentication of Battery Packs Through a Programmable CRC With a 96-bit Unique Device ID 16 Bytes of User-Programmable Nonvolatile Memory 12.5 KV IEC ESD Protection on HDQ Input Internal Time-Base Eliminates External Crystal Oscillator Low-Power Operating: <30 µA Single-Wire HDQ Interface Powered Directly From the Communication Bus Pass-Through HDQ Version Supports Existing Packs With Gas Gauges Small 5-Pin SC 70 package APPLICATIONS Cellular Phones PDA and Smart Phones MP3 Players Digital Cameras Internet Appliances Handheld Devices bqSECURE is a trademark of Texas Instruments.
Related Datasheets
| Part Number | Description | Category |
| • BQ26100 | SHA-1/HMAC Based Security & Authentication IC w/SDQ Interface (Rev. A) | ICs, Interface |
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