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Product details

Parameters

Communication interface SDQ Features 1k-bit EPROM Vin (Typ) (V) 3.7 Power consumption (Typ) (mW) 20 Operating temperature range (C) -20 to 70, 0 to 70 open-in-new Find other Battery authentication ICs

Package | Pins | Size

SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 TO-92 (LP) 3 19 mm² 5.2 x 3.68 open-in-new Find other Battery authentication ICs

Features

  • 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
  • 15KV 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
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Description

The bq2022A is a 1K-bit 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

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet bq2022A 1K-Bit Serial EPROM with SDQ Interface datasheet (Rev. E) Mar. 28, 2016
User guides bq2022A Evaluation Software (Rev. B) Jul. 20, 2017
Application notes Battery Authentication and Security Schemes (Rev. A) Jul. 17, 2014
Application notes Improving Battery Safety, Charging, and Fuel Gauging in Portable Media Apps Mar. 11, 2009
Application notes Q1 2009 Issue Analog Applications Journal Mar. 11, 2009

Design & development

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

Hardware development

EVALUATION BOARDS Download
BQ2022A Evaluation Module
BQ2022AEVM-001
document-generic User guide
99
Description

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 (...)

Software development

SUPPORT SOFTWARE Download
SLUC141.ZIP (2270 KB)

CAD/CAE symbols

Package Pins Download
SOT-23 (DBZ) 3 View options
TO-92 (LP) 3 View options

Ordering & quality

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