ML4804
PIN CONFIGURATION
ML4804
16-Pin PDIP (P16)
16-Pin Narrow SOIC (S16N)
IEAO 1
IAC 2
ISENSE 3
VRMS 4
SS 5
VDC 6
RAMP 1 7
RAMP 2 8
16 VEAO
15 VFB
14 VREF
13 VCC
12 PFC OUT
11 PWM OUT
10 GND
9
DC ILIMIT
TOP VIEW
PIN DESCRIPTION
PIN
NAME
FUNCTION
PIN
NAME
FUNCTION
1
2
3
4
5
6
7
8
IEAO
I
AC
I
SENSE
V
RMS
SS
V
DC
RAMP 1
RAMP 2
Slew rate enhanced PFC
transconductance error amplifier output
PFC AC line reference input to Gain
Modulator
Current sense input to the PFC Gain
Modulator
PFC Gain Modulator RMS line voltage
compensation input
Connection point for the PWM soft start
capacitor
9
10
11
12
13
14
15
DC I
LIMIT
GND
PWM OUT
PFC OUT
V
CC
V
REF
V
FB
VEAO
PWM cycle-by-cycle current
limit comparator input
Ground
PWM driver output
PFC driver output
Positive supply
Buffered output for the internal
7.5V reference
PFC transconductance voltage
error amplifier input
PFC transconductance voltage
error amplifier output
PWM voltage feedback input
Oscillator timing node; timing set
by R
T
C
T
When in current mode, this pin
functions as the current sense input;
when in voltage mode, it is the PWM
modulation ramp input.
16
2
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
