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Charging LiFePO4 Battery And Supercapacitor Using BQ25756
SLUAAT5
December 2023
BQ25756
CONTENTS
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Charging LiFePO4 Battery And Supercapacitor Using BQ25756
1
Abstract
Trademarks
1
Introduction
2
LiFePO4 Charging Profile
3
BQ25756 Settings For LiFePO4
3.1
Set Charging Voltages
3.1.1
Regulation Voltage
3.1.2
Recharge Voltage
3.1.3
Battery Low Voltage
3.2
Set Charging Current
3.2.1
Charging Current
3.2.1.1
ICHG Pin Pull Down Resistor
3.2.1.2
ICHG_REG Register Bits
3.2.2
Pre-Charge Current
3.2.3
Termination Current
3.3
TS Pin Setting
3.3.1
JEITA Enabled
3.3.2
JEITA Disabled
3.3.3
NTC Monitoring Disabled
4
Supercapacitor Charging Profile
5
SBQ25756 Settings For Supercapacitor
5.1
Charge Current Setting
5.2
Charge Voltage Setting
5.3
TS Pin Setting
6
Test Results From EVM
6.1
Charging LiFePO4 Battery
6.2
Charging Supercapacitor
7
Summary
8
References
IMPORTANT NOTICE
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Application Note
Charging LiFePO
4
Battery And Supercapacitor Using BQ25756