ML4804CS Micro Linear, ML4804CS Datasheet - Page 2

• Manufacturer Part Number: ML4804CS
• Description: Power Factor Correction and PWM Controller Combo
• Manufacturer: Micro Linear

ML4804
PIN CONFIGURATION
PIN DESCRIPTION
PIN
2
1
2
3
4
5
6
7
8
NAME
IEAO
I
I
V
SS
V
RAMP 1
RAMP 2
AC
SENSE
RMS
DC
FUNCTION
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
PWM voltage feedback input
Oscillator timing node; timing set
by R
When in current mode, this pin
functions as the current sense input;
when in voltage mode, it is the PWM
modulation ramp input.
T
C
T
16-Pin Narrow SOIC (S16N)
RAMP 1
RAMP 2
I SENSE
V RMS
IEAO
V DC
I AC
16-Pin PDIP (P16)
SS
1
2
3
4
5
6
7
8
TOP VIEW
ML4804
16
15
14
13
12
11
10
PIN
9
9
10
11
12
13
14
15
16
VEAO
V FB
V REF
V CC
PFC OUT
PWM OUT
GND
DC I LIMIT
NAME
DC I
GND
PWM OUT
PFC OUT
V
V
V
VEAO
CC
REF
FB
LIMIT
FUNCTION
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