MCP1631HV-500E/ST Microchip Technology, MCP1631HV-500E/ST Datasheet - Page 45

• 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

© 2009 Microchip Technology Inc.
24. Press and hold the “ON/OFF” button on the charger board until the LED’s flash
25. Press and release the “CHEM” button until the “Li-Ion” LED is on.
26. Press and release the “# CELLS” button until the “0” display LED is on and the
27. Press and hold the “# CELLS” button on the charger board until the LED’s flash
28. Press the “ON/OFF” button. The charger will exit Configuration mode.
29. Turn off and disconnect the power supply.
30. Reconnect the variable supply (+) lead to the input connector (+) pin J1-1.
31. Reconnect the variable supply (-) lead to the input connector (-) pin J1-2.
32. Connect the Li-Ion battery pack to the charger board J2 connector.
33. Turn on the supply and set the voltage to 8.0V (any voltage between 6V and 12V
34. Press the “ON/OFF” button. The charger will start charging the battery.
35. Press the “CHEM” button to display the current charger state in HEX. “0” LED is
36. Press the “# CELLS” button to display the termination cause. No LED means no
37. Using an oscilloscope, refer to A.2 “Board – Schematic” and A.3 “Board – Top
38. Press the “ON/OFF” button. The charger will stop charging the battery.
(about 5 seconds). The board is now in Configuration Mode.
“1,2,3” display LED’s are off.
(about 5 seconds). The board is now calibrated to use the 4.200V as the Li-Ion
battery voltage.
is good).
the LS Bit.
premature termination.
Silk Layer” and probe the following components:
- V
- PWM = TP4
- Oscillator = TP5
- VS
- Slope Compensation = TP7
- Temperature = TP8 (if used)
- FB = TP9
- Drain Voltage = TP10
- Output Voltage = TP11
REF
OUT
= TP3
= TP6
Software
DS51791A-page 41