Datasheet

Features

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14 Connection Sequence .................................................................................................... 20

List of Tables

1 Ordering Information........................................................................................................ 2

2 Bill of Materials .............................................................................................................. 7

3 Performance Specification Summary ................................................................................... 11

4 Circuit Module to EV2x00 Connections................................................................................. 12

1 Features

• Complete evaluation system for the bq28400 SBS 1.1-compliant advanced gas gauge and the

bq29200 independent overvoltage protection IC

• Populated circuit module for quick setup

• PC software and interface board for easy evaluation

• Software that allows data logging for system analysis

1.1 Kit Contents

• bq28400/bq29200 circuit module

• Set of support documentation (to be downloaded from the bq28400EVM product web page)

1.2 Ordering Information

Table 1. Ordering Information

EVM PART NUMBER CHEMISTRY CONFIGURATION CAPACITY

bq28400EVM-001 Li-ion 2 cell Any

2 bq28400-Based Circuit Module

The bq28400/bq29200-based circuit module is a complete and compact example solution of a bq28400

circuit for battery management and protection of Li-ion or Li-Polymer packs. The circuit module

incorporates a bq28400 battery monitor IC, bq29200 independent overvoltage protection IC with automatic

cell balancing, and all other components necessary to accurately predict the capacity of 2-series cells.

2.1 Circuit Module Connections

Contacts on the circuit module provide the following connections:

• Direct connection to the cells: 1N (BAT–), 1P, 2P (BAT+)

• To the serial communications port (SMBC, SMBD)

• The system load and charger connect across PACK+ and PACK–

• To the system-present pin (PRES)

bq28400EVM-001 SBS 1.1 Compliant Tablet PC and Netbook 2-Series Cell SLUU494–February 2011

Li-Ion Battery Gas Gauge and Protection

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