ML4824-2 Fairchild Semiconductor, ML4824-2 Datasheet - Page 2

• Manufacturer Part Number: ML4824-2
• Description: The ML4824 is a controller for power factor corrected, switched mode power supplies
• Manufacturer: Fairchild Semiconductor

ML4824
Pin Configuration
Pin Description
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PIN
IEAO
I
I
V
SS
V
RAMP 1
RAMP 2
DC I
GND
PWM OUT
PFC OUT
V
V
V
VEAO
AC
SENSE
RMS
DC
CC
REF
FB
NAME
LIMIT
PFC transconductance current error amplifier output
PFC gain control reference input
Current sense input to the PFC current limit comparator
Input for PFC RMS line voltage compensation
Connection point for the PWM soft start capacitor
PWM voltage feedback input
Oscillator timing node; timing set by R
When in current mode, this pin functions as as the current sense input; when in voltage
mode, it is the PWM input from PFC output (feed forward ramp).
PWM current limit comparator input
Ground
PWM driver output
PFC driver output
Positive supply (connected to an internal shunt regulator)
Buffered output for the internal 7.5V reference
PFC transconductance voltage error amplifier input
PFC transconductance voltage error amplifier output
16-Pin Wide SOIC (S16W)
I SENSE
RAMP 1
RAMP 2
V RMS
IEAO
V DC
16-Pin PDIP (P16)
I AC
SS
1
2
3
4
5
6
7
8
TOP VIEW
ML4824
16
15
14
13
12
11
10
9
T
FUNCTION
C
VEAO
V FB
V REF
V CC
PFC OUT
PWM OUT
GND
DC I LIMIT
T
PRODUCT SPECIFICATION
REV. 1.0.6 11/7/03