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1
Features
1.1
Kit Contents
1.2
Ordering Information
2
bq20z70/bq29330-Based Circuit Module
2.1
Circuit Module Connections
Features
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Complete evaluation system for the bq20z70 SBS 1.1-compliant advanced gas gauge with Impedance
Track™ Technology, bq29330 analog front end (AFE) and protection IC, and bq29412 independent
overvoltage protection IC
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Populated circuit module for quick setup
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PC software and interface board for easy evaluation
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Software that allows data logging for system analysis
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bq20z70/bq29330/bq29412 circuit module
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EV2300 PC interface board
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Software CD with the evaluation software
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Connection cable to interface board
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Set of support documentation
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EV2300 USB interface board
Table 1. Ordering Information
EVM PART NUMBER
CHEMISTRY
CONFIGURATION
CAPACITY
bq20z70EVM-001
Li-ion
2, 3, or 4 cell
Any
The bq20z70/bq29330/bq29412-based circuit module is a complete and compact example solution of a
bq20z70 and bq29330 circuit for battery management and protection of Li-ion or Li-polymer packs. The
circuit module incorporates a bq20z70 battery monitor IC, bq29330 AFE and protection IC, bq29412
independent overvoltage protection IC, and all other components necessary to accurately predict the
capacity of 2-, 3-, or 4-series cells.
Contacts on the circuit module provide the following connections:
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Direct connection to the cells: 1N (BAT–), 1P, 2P, 3P, 4P (BAT+)
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To the serial communications port (SMBC, SMBD, VSS)
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The system load and charger connect across PACK+ and PACK–
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To the system present pin (SYS PRES)
SLUU242A – May 2006 – Revised June 2006
bq20z70EVM-001 SBS 1.1 Impedance Track™Technology
3
Enabled Battery Management Solution Evaluation Module
