MCP1631HV-500E/ST Microchip Technology, MCP1631HV-500E/ST Datasheet - Page 38

• 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
C.2
DS51791A-page 34
SELECTED SOFTWARE CONSTANTS AND DEFINITIONS
1. FOSC_KHZ = 8000
2. CHARGER_SYSTEM = BUCK_BOOST_REF_DESIGN_BOARD
3. DVDT_TERMINATION = ENABLED
4. DTDT_TERMINATION = ENABLED
5. LION_SUPPORT = ENABLED
6. NIMH_SUPPORT = ENABLED
7. R24 = ((float)(39.6))
8. R34 = ((float)(39.6))
9. MCP1631_ISIN_AMPLIFICATION = 10.0
10. R6 ((float)(0.22)) = Current Sense (ISin) Resistor
11. R7 ((float)(0.22)) = Current Sense (ISin) Resistor
Options for CHARGER_SYSTEM are:
MULTICHEMISTRY_REF_DESIGN_BOARD_102_00232
Microprocessor Oscillator Frequency in kHz.
Selects charger system option to build. Multiple options can be created which
each use a single header file containing parameters for that specific system.
Used to mask NiMH termination caused by battery voltage DV/Dt. When
DISABLED, allows the user to create complete charge profile by ignoring battery
voltage termination.
Used to mask NiMH termination caused by battery temperature DT/Dt. When
DISABLED, allows the user to create complete charge profile by ignoring battery
temperature termination. Termination due to battery overtemperature is always
enabled.
Enables support for Lithium Ion batteries.
Enable support for Nickel Metal Hydride batteries.
Voltage reference resistor divider highside resistor value (divider at PIC port C1).
Voltage reference resistor divider lowside resistor value (divider at PIC port C1).
MCP1631HV ISin Current Sense Input amplification.
Switch (State)
Ret
L
OFF
DoOneSecondTasks()
SHDN = 0
SetIRef(0)
© 2009 Microchip Technology Inc.