MCP1631HV-500E/ST Microchip Technology, MCP1631HV-500E/ST Datasheet - Page 10

• Manufacturer Part Number: MCP1631HV-500E/ST
• Description: IC INTEGRATED PWM HS 20TSSOP
• Manufacturer: Microchip Technology

Specifications of MCP1631HV-500E/ST

• Package / Case: 20-TSSOP
• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 2MHz
• Duty Cycle: 10%
• Voltage - Supply: 3.5 V ~ 16 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 125°C
• Frequency-max: 2MHz
• Output Voltage: 3.3 V to 5 V
• Output Current: 250 mA
• Input Voltage: 3 V to 5.5 V
• Switching Frequency: 2 MHz
• Operating Temperature Range: - 40 C to + 125 C
• Mounting Style: SMD/SMT
• Frequency: 1MHz
• Digital Ic Case Style: TSSOP
• No. Of Pins: 20
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP1631RD-DCPC1 - REF DES BATT CHARG OR LED DRIVERMCP1631RD-MCC2 - REFERENCE DESIGN MCP1631HV
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP1631HV Multi-Chemistry Battery Charger Reference Design
1.2
1.3
DS51791A- page 6
WHAT IS THE MCP1631HV MULTI-CHEMISTRY BATTERY CHARGER
REFERENCE DESIGN?
WHAT THE MCP1631HV MULTI-CHEMISTRY BATTERY CHARGER
REFERENCE DESIGN KIT INCLUDES
The MCP1631HV Multi-Chemistry Battery Charger is a complete stand-alone battery
charger for NiMH, NiCd or Li-Ion battery packs. The board may also be used to drive
LED devices using constant current mode. When charging NiMH or NiCd batteries the
reference design is capable of charging one to five batteries connected in series. If
Li-Ion chemistry is selected, the board is capable of charging one or two series
batteries. When the LED driver is selected, the board is capable of driving one to two
1W LEDs. This board utilizes Microchip’s MCP1631HV (high-speed PWM and
PIC16F883 MCU). The input voltage range for the demo board is 5.3V to 16V.
The board is capable of both boosting and bucking the input voltage in order to obtain
the desired output voltage because a SEPIC converter topology is used. The overvolt-
age limit for the board is set to 9V. The powertrain components may be changed to
allow for higher output voltages and power.
TABLE 1-1:
An input terminal block is provided to apply the input voltage to the charger. An output
header is also provided as a means to connect the external battery pack or simulated
battery load and external 10K thermistor. A programming header is available for
updating the firmware contained in the PIC16F883.
This MCP1631HV Multi-Chemistry Battery Charger Reference Design kit includes:
• The MCP1631HV Multi-Chemistry Battery Charger Board,102-00232
• Analog and Interface Products Demonstration Boards CD-ROM includes
Li-Ion
NiMH or NiCd
LED Driver
(DS21912):
- MCP1631HV Multi-Chemistry Battery Charger User’s Guide, (DS51697).
- MCP1631 Data Sheet, “High-Speed, Microcontroller-Adaptable, Pulse Width
- PIC16F883 Data Sheet, “8-Pin Flash-Based, 8-Bit CMOS Microcontrollers
- Application Note AN1137, “Using the MCP1631 Family to Develop Low-Cost
Battery Chemistry
Modulator”, (DS22063).
with nanoWatt Technology”, (DS41291).
Battery Chargers”, (DS01137).
MULTI-CHEMISTRY CHARGER CAPABILITY
300 mA
1 Cell
1.5A
2A
300 mA
2 Cell
1.5A
1A
3 Cell
1.5A
NA
NA
© 2009 Microchip Technology Inc.
4 Cell
1.5A
NA
NA
5 Cell
1.5A
NA
NA