MCP1630RD-DDBK3 Microchip Technology, MCP1630RD-DDBK3 Datasheet - Page 10

• 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

MCP1630V Bidirectional 4 Cell Li-Ion Charger Reference Design User’s Guide
1.2
1.3
DS51641A-page 6
WHAT IS THE MCP1630V BIDIRECTIONAL 4 CELL LI-ION CHARGER
REFERENCE DESIGN?
WHAT THE MCP1630V BIDIRECTIONAL 4 CELL LI-ION CHARGER
REFERENCE DESIGN KIT INCLUDES
The MCP1630V Bidirectional 4 Cell Li-Ion Charger Reference Design demonstrates
the use of a bidirectional buck-boost converter used to charge multiple series cell Li-Ion
batteries with the presence of an input source (boost) and provide a regulated output
voltage when the input source is removed (buck). The board also serves as a platform
to evaluate the MCP1630V device.
The MCP1630V Bidirectional 4 Cell Li-Ion Charger Reference Design inputs were
developed to be easily attached to the I/O of a PIC
the oscillator (OSC_IN) and reference voltage (V
flexible and adaptable power system. The power system switching frequency and
maximum duty cycle are set using the hardware PWM of the MCU. The reference input
to the high speed analog PWM can be external, a D/A Converter (DAC) output or as
simple as an I/O output from the MCU. This enables the power system to adapt to
external signals and variables in order to optimize performance and facilitate
calibration.
This board utilizes Microchip's MCP1630V (high-speed PIC MCU PWM MSOP8) with
the PIC16F88 (Flash MCU) in a four cell Li-Ion charger combined with a synchronous
buck regulator. Under normal operation, the input supply can range between 6.5V and
7.0V. The converter is capable of charging four Li-Ion cells connected in series when
the 6.5V input is present and regulating the bulk input voltage to 6.0V when the input
source voltage is removed by stepping, (bucking), down the battery pack voltage.
This MCP1630V Bidirectional 4 Cell Li-Ion Charger Reference Design kit includes:
• MCP1630V Bidirectional 4 Cell Li-Ion Charger Reference Design
• Analog and Interface Products Demonstration Boards CD-ROM (DS21912)
- MCP1630V Bidirectional 4 Cell Li-Ion Charger Reference Design User’s
Guide (DS51641)
REF
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Microcontroller. The MCU supplies
) to the MCP1630V creating a
© 2006 Microchip Technology Inc.