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TMP1826 ACTIVE 1-Wire® ±0.2°C accurate digital temperature sensor with 2-kbit EEPROM 2-Kbit EEPROM with 1-Wire® interface, wider VCC range (1.7 to 5.5V), and integrated temperature sensor (±0.2°C). Available in smaller QFN package (2.5 × 2.5 mm)
TMP1827 ACTIVE 1-Wire® SHA-256 authenticator with 2Kbit EEPROM and integrated ±0.2°C temperature sensor SHA-256-Based Authentication IC with 1-Wire® interface, with EEPROM (2-Kbit) and an integrated temperature sensor (±0.2°C or ±0.9°C)

Product details

Communication interface SDQ Features 1k-bit EPROM Vin (typ) (V) 3.7 Vin (max) (V) 5.5 Power consumption (typ) (mW) 20 Operating temperature range (°C) -20 to 70 Rating Catalog
Communication interface SDQ Features 1k-bit EPROM Vin (typ) (V) 3.7 Vin (max) (V) 5.5 Power consumption (typ) (mW) 20 Operating temperature range (°C) -20 to 70 Rating Catalog
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37 TO-92 (LP) 3 19.136 mm² 5.2 x 3.68
  • 1024 bits of one-time programmable (OTP) EPROM for storage of user-programmable configuration data
  • Factory-programmed unique 64-bit identification number
  • Single-wire interface to reduce circuit board routing
  • Synchronous communication reduces host interrupt overhead
  • 15-KV IEC 61000-4-2 ESD compliance on data pin
  • No standby power required
  • Available in a 3-pin SOT-23 package and TO-92 package
  • 1024 bits of one-time programmable (OTP) EPROM for storage of user-programmable configuration data
  • Factory-programmed unique 64-bit identification number
  • Single-wire interface to reduce circuit board routing
  • Synchronous communication reduces host interrupt overhead
  • 15-KV IEC 61000-4-2 ESD compliance on data pin
  • No standby power required
  • Available in a 3-pin SOT-23 package and TO-92 package

The BQ2022A is a 1-Kbit serial EPROM containing a factory-programmed, unique 48-bit identification number, 8-bit CRC generation, and the 8-bit family code (09h). A 64-bit status register controls write protection and page redirection.

The BQ2022A SDQ™ interface requires only a single connection and a ground return. The DATA pin is also the sole power source for the BQ2022A.

The small surface-mount package options saves printed-circuit-board space, while the low cost makes it ideal for applications such as battery pack configuration parameters, record maintenance, asset tracking, product-revision status, and access-code security.

The BQ2022A is a 1-Kbit serial EPROM containing a factory-programmed, unique 48-bit identification number, 8-bit CRC generation, and the 8-bit family code (09h). A 64-bit status register controls write protection and page redirection.

The BQ2022A SDQ™ interface requires only a single connection and a ground return. The DATA pin is also the sole power source for the BQ2022A.

The small surface-mount package options saves printed-circuit-board space, while the low cost makes it ideal for applications such as battery pack configuration parameters, record maintenance, asset tracking, product-revision status, and access-code security.

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Technical documentation

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Type Title Date
* Data sheet BQ2022A 1-Kbit Serial EPROM with SDQ Interface datasheet (Rev. F) PDF | HTML 31 Jan 2022
User guide BQ2022A Evaluation Software (Rev. C) 05 Feb 2021
Application note Battery Authentication and Security Schemes (Rev. A) 17 Jul 2014
Analog Design Journal Improving Battery Safety, Charging, and Fuel Gauging in Portable Media Apps 11 Mar 2009

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

BQ2022AEVM-001 — BQ2022A Evaluation Module

The bq2022A is a 1 K-bit serial EPROM containing a factory-programmed, unique 48-bit identification number, 8-bit CRC generation, and an 8-bit family code. A 64-bit status register controls write protection and page redirection. The purpose of the evaluation software is to demonstrate the (...)

User guide: PDF
Not available on TI.com
Support software

SLUC141 BQ2022A EVSW Installation File

Supported products & hardware

Supported products & hardware

Products
Battery authentication ICs
BQ2022A 1K-bit Serial EPROM with SDQ Interface
Hardware development
Evaluation board
BQ2022AEVM-001 BQ2022A Evaluation Module
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBZ) 3 Ultra Librarian
TO-92 (LP) 3 Ultra Librarian

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