BQ26100 具有 SDQ 接口的基于 SHA-1/HMAC 安全和认证 IC | 德州仪器 TI.com.cn

BQ26100 (正在供货) 具有 SDQ 接口的基于 SHA-1/HMAC 安全和认证 IC

 

描述

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.

特性

  • 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

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参数

与其它产品相比 电池认证Ics 邮件 下载到电子表格中
Part number 立即下单 Communication interface Features Vin (Typ) (V) Power consumption (Typ) (mW) Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
BQ26100 立即下单 SDQ     SHA-1 Authentication     7     50     -40 to 85     VSON | 6     6VSON: 9 mm2: 3 x 3 (VSON | 6)    
BQ2022A 立即下单 SDQ     1k-bit EPROM     3.7     20     -20 to 70
0 to 70    
SOT-23 | 3
TO-92 | 3    
3SOT-23: 7 mm2: 2.37 x 2.92 (SOT-23 | 3)
3TO-92: 19 mm2: 3.68 x 5.2 (TO-92 | 3)    
BQ2024 无样片 SDQ     1.5k-bit EPROM     3.7     20     -20 to 70     SOT-23 | 3     3SOT-23: 7 mm2: 2.37 x 2.92 (SOT-23 | 3)    
BQ2026 立即下单 SDQ     1.5k-bit EPROM     3.7     20     -20 to 70     SOT-23 | 3
TO-92 | 3    
3SOT-23: 7 mm2: 2.37 x 2.92 (SOT-23 | 3)
3TO-92: 19 mm2: 3.68 x 5.2 (TO-92 | 3)    
BQ2028 立即下单 HDQ     4k-bit EEPROM     3.7     20     -40 to 85     DSBGA | 12     See datasheet (DSBGA)