MCP1630RD-NMC1 Microchip Technology, MCP1630RD-NMC1 Datasheet - Page 13

• 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

© 2007 Microchip Technology Inc.
FIGURE 2-2:
2.3.1.2
1. To apply a load to the MCP1630 Low-Cost Li-Ion Battery Charger, the positive
2. A thermistor referenced to (B-) in the battery pack should be utilized, recom-
3. The installed firmware will prevent the board from entering the 1.3A Fast Charge
Input +
Input -
side of the load (B+) should be connected to pin 1 of J2. The negative side of the
load (B-) should be connected to pin 5 of J2. Care should be taken when using
electronic loads or ground referenced loads.
mended EPCOS Inc. PN B57509m103A5. If a thermistor is not available or not
desired, a 10 k
header (J2).
mode, if the battery terminal voltage is less than 2V. During power-up, the board
will always trickle charge first, so using a purely resistive load will not work for
trickle and fast-charge current. The best way to evaluate the charger is to use a
three series cell NiMH 2,200 mA/hour batteries, or the recommended simulated
battery load. Refer to Figure 2-3 before applying a load to the MCP1630
Low-Cost NiMH Battery Charger Reference Design.
APPLYING A LOAD TO THE MCP1630 LOW-COST NIMH BATTERY
CHARGER REFERENCE DESIGN
R1 2
R1 6
R1 7
C9
D2
C5
Ω
Setup Configuration Diagram.
resistor should be placed between pins 4 and 5 of the battery
J1
C1 0
R1 1
R1 3
R5
C1
R1
C2
R2
U4
R2 1
R6
U2
R1 8 R1 9
R7
L1
C6
R8
R1 5
C1 2
R3
C7
C3
R9
C1 3 C1 4
R1 0
D1
C8
Q1
U3
R1 4
C4
R4
J2
J3
DS51648A-page 9
Battery
Header
Programming
Header