MCP1630RD-DDBK3 Microchip Technology, MCP1630RD-DDBK3 Datasheet - Page 27

• Manufacturer Part Number: MCP1630RD-DDBK3
• Description: REF DESIGN MCP1630V BI-DIR 4CELL
• Manufacturer: Microchip Technology
• Type: Battery Managementr

Specifications of MCP1630RD-DDBK3

• Main Purpose: Power Management, Battery Charger
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP1630
• Primary Attributes: 4 Cells- Li-Ion, 6.5 ~ 7 V Input
• Secondary Attributes: MCU Generates Frequency, 94% Efficiency, 2 Status LEDs
• Input Voltage: 6.5 V to 7 V
• Product: Power Management Modules
• For Use With/related Products: MCP1630V, PIC16F88, MCP6022
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

C.1
© 2006 Microchip Technology Inc.
DEVICE FIRMWARE - FLOWCHART
For the latest copy of the MCP1630V Bidirectional 4 Cell Li-Ion Charger Reference
Design User’s Guide firmware, visit our web site at www.microchip.com.
FIGURE C-1:
Charge States
Idle = 0 mA
P.C. = Pre-Charge
C.C. = Constant Current
C.V. = Constant Voltage
Set State to
Set State to
P.C.
C.V.
B
B
Appendix C. Firmware
Yes
Yes
MCP1630V BIDIRECTIONAL 4 CELL
Firmware Flowchart, page 1.
V
V
V
BATT
BATT
Inc. I
BATT
to I
No
MAX
LI-ION CHARGER REFERENCE
>12.8V
<16.3V
>16.8V
BATT
No
Initialize Ports, ADC, PWM, etc.
Yes
Yes
Read ADC Inputs
V
BATT
State @ P.C.?
State @ Idle?
State @ C.C.
State @ C.V.
Is Charge
Is Charge
Is Charge
Is Charge
DESIGN USER’S GUIDE
START
and V
B
No
No
No
No
BULK
Yes
Yes
V
V
BATT
BATT
No
No
B
C
> 16.8V
> 12.8V
DS51641A-page 23
Set State to
A
Yes
Dec. I
Yes
C.C
BATT