ml4841 Fairchild Semiconductor, ml4841 Datasheet - Page 2

• Manufacturer Part Number: ml4841
• Description: Ml4841 Variable Feedforward Pfc/pwm Controller Combo
• Manufacturer: Fairchild Semiconductor

ML4841
Pin Configuration
Pin Description
2
PIN
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
PWM OUT
PFC OUT
RAMP 1
RAMP 2
I
NAME
SENSE
V
VEAO
R
V
IEAO
GND
V
V
V
I
RMS
SS
T
REF
AC
DC
CC
FB
C
T
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
Connection for oscillator frequency setting components
PFC ramp input
PWM ramp current sense 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
RAMP 1
I SENSE
R T /C T
V RMS
IEAO
V DC
I AC
16-Pin PDIP (P16)
SS
1
2
3
4
5
6
7
8
TOP VIEW
ML4841
16
15
14
13
12
11
10
9
VEAO
V FB
V REF
V CC
PFC OUT
PWM OUT
GND
RAMP 2
FUNCTION
PRODUCT SPECIFICATION
REV. 1.0.3 6/13/01