MCP1630RD-NMC1 Microchip Technology, MCP1630RD-NMC1 Datasheet - Page 23

• Manufacturer Part Number: MCP1630RD-NMC1
• Description: REF DESIGN MCP1630 NIMH BATT CHG
• Manufacturer: Microchip Technology

Specifications of MCP1630RD-NMC1

• Main Purpose: Power Management, Battery Charger
• Embedded: No
• Utilized Ic / Part: MCP1630
• Primary Attributes: 3 Cells- NiMH / NiCd, 1.35A Out, 6V ~ 15 V Input
• Secondary Attributes: Preconditioning, Cell Temperature & Batt Pack Fault Monitoring
• Silicon Manufacturer: Microchip
• Application Sub Type: Battery Charger
• Kit Application Type: Power Management - Battery
• Silicon Core Number: MCP1630, PIC12F683, MCP1702, MCP6292
• Kit Contents: Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

C.1
© 2007 Microchip Technology Inc.
DEVICE FIRMWARE FLOWCHART - PAGE 1
For the latest copy of the MCP1630 Low-Cost NiMH Battery Charger Reference Design
firmware, visit our website at www.microchip.com.
FIGURE C-1:
Appendix C. Demo Board Firmware
B
No
No
No
I
CHARGE
ADC, PWM, etc.
Initialize Ports,
I
CHARGE
Turn On LED
Reset timers
Pre-Charge
Fast charge
Termination
present?
Is BATT
present?
present?
START
Is BATT
Is BATT
Is BATT
Voltage
> 3V
A
= 170 ma
Yes
Yes
= 1.3A
Yes
Yes
Yes
MCP1630 LOW-COST NIMH BATTERY
Firmware Flowchart, page 1.
No
No
No
No
CHARGER REFERENCE DESIGN
Termination
of Range?
Temp. out
Temp. out
of Range?
Expired
Temp.
Timer
Yes
No
Yes
Yes
Yes
No
No
Terminate Charge
Suspend Charge
Charge Fault
Expired?
Temp. Fault
Flash LED
Flash LED
of Range?
Temp. out
Timer
No
Yes
Suspend Charge
No
Yes
Temp. Fault
Flash LED
of Range?
Temp. out
DS51648A-page 19
present?
Is BATT
No
Yes
Yes