Datasheet

MCP14628
DS22083A-page 2 © 2008 Microchip Technology Inc.
Typical Application Schematic
Functional Block Diagram
UGATE
LGATE
PHASE
GND
BOOT
V
CC
FCCM
PWM
C
BOOT
FB
V
REF
COMP
GND
VEXT
V
CC
CS
OSC IN
MCP1630
MCP14628
REFERENCE VOLTAGE
V
SUPPLY
= 12V
V
CC
= 5V
OSCILLATOR
FROM MCU
CURRENT
SENSE
CURRENT
SENSE
Q
H
Q
L
FCCM
CONTROL
BOOT
HIGHDR
PHASE
LOWDR
V
CC
FCCM
PWM
GND
V
CC
R
R
Level
Shift
Control
Logic &
Protection