Texas Instruments BQ27421EVM-G1A System-Side Battery Fuel (Gas) Gauge Evaluation Module Board BQ27421EVM-G1A BQ27421EVM-G1A Scheda Tecnica
Codici prodotto
BQ27421EVM-G1A
Features
1
bq27421EVM Layout – Top Silk
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2
bq27421EVM Layout - Top Layer
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3
bq27421EVM Layout - Power Layer
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4
bq27421EVM Layout – Bottom Layer
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5
bq27421EVM Layout – Ground Layer
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6
bq27421EVM Schematic
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7
bq27421 Circuit Module Connection to Pack and System Load/Charger
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8
Registers Screen
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9
Data Memory Screen
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10
Calibration Screen
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List of Tables
1
Ordering Information
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2
Bill of Materials
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3
Performance Specification Summary
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4
Circuit Module to EV2300 or EV2400 Connections
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1
Features
•
Complete evaluation system for the bq27421 gas gauge with Impedance Track™ technology
•
Populated circuit module for quick setup
•
Personal computer (PC) software and interface board for easy evaluation
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Software that allows data logging for system analysis
1.1
Kit Contents
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bq27421 circuit module (PWR214)
This EVM is used for the evaluation of bq27421. Visit the product Web folder at
to properly
configure the bq27421.
1.2
Ordering Information
Table 1. Ordering Information
Part Number
EVM Part Number
Firmware Version
(1)
Chemistry
Chemistry ID
(2)
Configuration
bq27421-G1A
bq27421EVM-G1A
v1.08 (0x0108)
4.2 V Li-ion
128
1 cell
bq27421-G1B
bq27421EVM-G1B
v1.08 (0x0108)
4.3/4.35 V Li-ion
312
1 cell
(1)
Using the FW_VERSION (0x0002) Control() Subcommand returns 0x0108. See the bq27421-G1x data sheet for information on
Control() Subcommands.
Control() Subcommands.
(2)
Using the CHEM_ID (0x0008) Control() Subcommand helps differentiate between the bq27425-G1A (returns 0x0128) and the
bq27421-G1B (returns 0x0312). Please refer to the bq27421-G1x data sheet for information on Control() Subcommands.
bq27421-G1B (returns 0x0312). Please refer to the bq27421-G1x data sheet for information on Control() Subcommands.
2
bq27421 EVM: Single-Cell Impedance Track Technology
SLUUA63 – April 2013
Copyright © 2013, Texas Instruments Incorporated