MCP1630RD-SALED Microchip Technology, MCP1630RD-SALED Datasheet - Page 25

• Manufacturer Part Number: MCP1630RD-SALED
• Description: Power Management IC Development Tools MCP1630 Sepic Automotive LED Drvr
• Manufacturer: Microchip Technology
• Type: DC/DC Converters, Regulators & Controllersr

Specifications of MCP1630RD-SALED

• Rohs: yes
• Product: Reference Designs
• Tool Is For Evaluation Of: MCP1630
• Input Voltage: 9 V to 16 V
• Output Voltage: 55 V
• Output Current: 350 mA

C.1
© 2011 Microchip Technology Inc.
MCP1630 SEPIC AUTOMOTIVE LED DRIVER REFERENCE DESIGN
FIRMWARE FLOWCHART
PWM = OFF
FAULT = 1
No
Soft_Start = 0
Soft_Start =
Soft_Start()
1
?
No
No
Appendix C. Firmware Flowchart
No
GP5 -> Vref OUT
GP2 -> CLK OUT
GP4 -> Vin SENSE
GP1 -> OVP Input
Analog Comparator
Read Push-Button
Enable Interrupts
GPIO Setup
Vin < Vin_max
Vin > Vin_min
ADC Setup
Vref DC = 0
Vref DC ++
Vref DC = 8
PWM Setup
Read Vin
Start
Setup
?
?
?
MCP1630 SEPIC AUTOMOTIVE LED
Yes
Soft_Start = 1
PWM = OFF
Yes
Yes
Vref DC = 0
FAULT = 1
?
DRIVER REFERENCE DESIGN
No
Yes
FAULT = 0
Soft_Start()
Comparator Tripped
Timer Interrupt
No
Interrupt
No
RETI
?
?
Yes
Yes
DS51955A-page 25
Generate Vref
Signal PWM
FAULT = 1
CMIF = 0
PWM = OFF
TOIF = 0