Datasheet

User's Guide
SLUU659–November 2011
bq294502 Voltage Protector for 2-Series or 3-Series Cell
Li-Ion Batteries EVM
The bq294502 EVM is a complete evaluation system for the bq2945xy family of second-level protectors.
The EVM includes one bq294502-based circuit module.
Contents
1 Features ...................................................................................................................... 1
2 bq294502-Based Circuit Module .......................................................................................... 1
3 bq294502 Circuit Module Schematic ..................................................................................... 3
4 Circuit Module Physical Layouts and Bill of Materials .................................................................. 4
5 EVM Hardware and Software Setup ..................................................................................... 5
List of Figures
1 bq294502 Schematic ....................................................................................................... 3
2 bq294502 Top Layer ....................................................................................................... 4
3 Bottom Layer ................................................................................................................ 4
4 bq294502 Circuit Module Connection to Cells and System Load/Charger.......................................... 6
List of Tables
1 Ordering Information........................................................................................................ 1
2 Bill of Materials .............................................................................................................. 5
3 Performance Specification Summary..................................................................................... 5
1 Features
• bq294502-based circuit module
• Link to support documentation
1.1 Ordering Information
Table 1. Ordering Information
EVM Part Number Chemistry Configuration Capacity
bq294502EVM-001 Li-Ion 2-Series or 3-Series Cell Any
2 bq294502-Based Circuit Module
The bq294502-based circuit module is a complete and compact example solution of a bq294502
second-level voltage protector. The circuit module includes one bq294502 IC, fuse blow circuitry, a fuse
blow delay capacitor, and all other onboard components necessary to use and interface with the protector.
The circuit module connects directly across the cells in a battery.
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SLUU659– November 2011 bq294502 Voltage Protector for 2-Series or 3-Series Cell Li-Ion Batteries EVM
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