Microchip Technology MCP1631RD-MCC2 Data Sheet
MCP1631/HV/MCP1631V/VHV
DS22063B-page 20
© 2008 Microchip Technology Inc.
5.6
OSC Disable Feature
The oscillator disable or OSC_DIS input is used to
asychronously terminate the PWM V
asychronously terminate the PWM V
EXT
output. This
can be used with a slow PWM input to modulate current
into an LED for lighting applications.
into an LED for lighting applications.
FIGURE 5-1:
+5V ac-dc or USB Input Application.
COMP
P
GND
SHDN
OSC
IN
OSC
DIS
OV
IN
V
REF
A
GND
NC
NC
A
VDD_IN
VS
IN
IS
IN
VS
OUT
IS
OUT
FB
CS
P
VDD
V
EXT
L1A
CIN
SCHOTTKY
DIODE
C
OUT
L1B
C
C
MCP1631
A
VDD_OUT
GP0/C
C
GP5
GP3
GP1/C
PIC12F683
LED
R
GND
GP4
CCP1
V
DD
V
IN
Range +4.5V to +5.5V
Multi-cell Multi-Chemistry Charger
NC
R
THERM