Microchip Technology MCP1631RD-MCC2 Data Sheet
MCP1631HV MULTI-CHEMISTRY
BATTERY CHARGER
REFERENCE DESIGN
© 2009 Microchip Technology Inc.
DS51791A- page 5
Chapter 1. Product Overview
1.1
INTRODUCTION
The MCP1631HV Multi-Chemistry reference design board is used to charge one to five
NiMH or NiCd batteries, charge one or two cell Li-Ion batteries, or drive one or two 1W
LEDs. The board uses the MCP1631HV high speed analog PWM and PIC16F883 to
generate the charge algorithm for NiMH, NiCd or Li-Ion batteries.
The MCP1631HV Multi-Chemistry Battery Charger is used to evaluate Microchip’s
MCP1631HV in a SEPIC power converter application. As provided, the MCP1631HV
Multi-Chemistry Battery Charger is user programmable using on board push buttons.
The board can charge NiMH, NiCd or Li-Ion batteries. The MCP1631HV Multi-Chem-
istry Battery Charger provides a constant current charge (Ni-based chemistry) and con-
stant current / constant voltage (Li-Ion) with preconditioning, cell temperature
monitoring (Ni-based) and battery pack fault monitoring. Also, the charger provides a
status or fault indication. The MCP1631HV Multi-Chemistry Battery Charger automati-
cally detects the insertion or removal of a battery pack.
This chapter covers the following topics.
• What is the MCP1631HV Multi-Chemistry Battery Charger Reference Design?
• What the MCP1631HV Multi-Chemistry Battery Charger Reference Design Kit
NiMH or NiCd batteries, charge one or two cell Li-Ion batteries, or drive one or two 1W
LEDs. The board uses the MCP1631HV high speed analog PWM and PIC16F883 to
generate the charge algorithm for NiMH, NiCd or Li-Ion batteries.
The MCP1631HV Multi-Chemistry Battery Charger is used to evaluate Microchip’s
MCP1631HV in a SEPIC power converter application. As provided, the MCP1631HV
Multi-Chemistry Battery Charger is user programmable using on board push buttons.
The board can charge NiMH, NiCd or Li-Ion batteries. The MCP1631HV Multi-Chem-
istry Battery Charger provides a constant current charge (Ni-based chemistry) and con-
stant current / constant voltage (Li-Ion) with preconditioning, cell temperature
monitoring (Ni-based) and battery pack fault monitoring. Also, the charger provides a
status or fault indication. The MCP1631HV Multi-Chemistry Battery Charger automati-
cally detects the insertion or removal of a battery pack.
This chapter covers the following topics.
• What is the MCP1631HV Multi-Chemistry Battery Charger Reference Design?
• What the MCP1631HV Multi-Chemistry Battery Charger Reference Design Kit
includes.
FIGURE 1-1:
MCP1631HV Multi-Chemistry Battery Charger Reference Design
Block Diagram.
5.3V to 18V
Power Supply
MCP1631HV SEPIC
Battery Charger
+
-
B+
B-
THERM
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