支援軟體
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.
技術文件
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檢視所有 6 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | bq26100 SHA-1/HMAC-based security and authentication IC with an SDQ interface datasheet (Rev. C) | PDF | HTML | 2019年 2月 17日 |
| Application note | Method to Enhance Authentication Security of BQ26100 | PDF | HTML | 2022年 9月 6日 | |
| User guide | bq26100 Evaluation Software User's Guide (Rev. A) | 2013年 10月 4日 | ||
| Analog Design Journal | Improving Battery Safety, Charging, and Fuel Gauging in Portable Media Apps | 2009年 3月 11日 | ||
| Application note | Single-Cell Impedance Track Gas Gauge for Novices | 2007年 6月 16日 | ||
| Application note | How to Implement SHA-1/HMAC Authentication for bq26100 (Rev. A) | 2006年 10月 9日 |
設計與開發
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開發板
BQ26100EVM — 基於 SHA-1/HMAC 的安全和認證 IC
The bq26100 provides a method to authenticate battery packs and other peripherals. The bq26100 uses a 128 bit unique device key and a 160 bit SHA-1/HMAC response to provide authentication. The device key is stored securely in each bq26100 device, allowing the host to authenticate each (...)
使用指南: PDF
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRP) | 6 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點