ML4827CP-1 Micro Linear, ML4827CP-1 Datasheet - Page 2

• Manufacturer Part Number: ML4827CP-1
• Description: Fault-Protected PFC and PWM Controller Combo
• Manufacturer: Micro Linear

ML4827
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
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
PFC (master) oscillator input; f
by R
When in current mode, this pin
functions as as the current sense input;
when in voltage mode, it is the PWM
(slave) oscillator input.
T
C
T
16-Pin Wide SOIC (S16W)
RAMP 1
RAMP 2
I SENSE
OSC
V RMS
IEAO
V DC
I AC
16-Pin PDIP (P16)
SS
set
1
2
3
4
5
6
7
8
TOP VIEW
ML4827
PIN
16
15
14
13
12
11
10
10
11
12
13
14
15
16
9
9
VEAO
V FB
V REF
V CC
PFC OUT
PWM OUT
GND
DC I LIMIT
NAME
DC I
GND
PWM OUT PWM driver output
PFC OUT
V
V
V
VEAO
CC
REF
FB
LIMIT
FUNCTION
PWM current limit comparator input
Ground
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, and TriFault Detect
input
PFC transconductance voltage error
amplifier output