BQ26100
- 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 typical
- Single-wire SDQ interface
- Powers directly from the communication bus
- 6-lead VSON package
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.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | bq26100 SHA-1/HMAC-based security and authentication IC with an SDQ interface datasheet (Rev. C) | PDF | HTML | 2019. 2. 17 | |
| 애플리케이션 노트 | Method to Enhance Authentication Security of BQ26100 | PDF | HTML | 2022. 9. 6 | ||
| EVM User's guide | bq26100 Evaluation Software User's Guide (Rev. A) | 2013. 10. 4 | |||
| 아날로그 디자인 학술지 | Improving Battery Safety, Charging, and Fuel Gauging in Portable Media Apps | 2009. 3. 11 | |||
| 애플리케이션 노트 | Single-Cell Impedance Track Gas Gauge for Novices | 2007. 6. 16 | |||
| 애플리케이션 노트 | How to Implement SHA-1/HMAC Authentication for bq26100 (Rev. A) | 2006. 10. 9 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
SLUC074 — EVSW for bq26100 and bq26100EVM
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VSON (DRP) | 6 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.