ML4801
PIN CONFIGURATION
ML4801
16-Pin PDIP (P16)
16-Pin Narrow SOIC (S16N)
IEAO
1
2
3
4
5
6
7
8
16 VEAO
I
15
14
13
V
V
V
AC
FB
I
SENSE
REF
CC
V
RMS
SS
12 PFC OUT
11 PWM OUT
10 GND
V
DC
R C
T T
RAMP 1
9
RAMP 2
TOP VIEW
PIN DESCRIPTION
PIN NAME
FUNCTION
PIN NAME
FUNCTION
1
IEAO
PFC transconductance current error
amplifier output
9
RAMP 2
GND
PWM ramp current sense input
Ground
10
11
12
13
2
3
I
AC
PFC gain control reference input
PWM OUT PWM driver output
I
Current sense input to the PFC current
limit comparator
SENSE
PFC OUT
PFC driver output
4
5
V
RMS
Input for PFC RMS line voltage
compensation
V
CC
Positive supply (connected to an
internal shunt regulator).
SS
Connection point for the PWM soft start
capacitor
14
15
16
V
V
Buffered output for the internal 7.5V
reference
REF
6
7
V
DC
PWM voltage feedback input
PFC transconductance voltage error
amplifier input
FB
R C
T
Connection for oscillator frequency
setting components
T
VEAO
PFC transconductance voltage error
amplifier output
8
RAMP 1
PFC ramp input
2
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
