Datasheet

CCM-PFC
ICE2PCS02
ICE2PCS02G
Version 2.4 3 22 Mar 2010
Type Package
ICE2PCS02 PG-DIP-8
ICE2PCS02 PG-DSO-8
Standalone Power Factor Correction (PFC)
Controller in Continuous Conduction Mode
(CCM) with Input Brown-Out Protection
ICE2PCS02
PG-DIP-8
ICE2PCS02G
PG-DSO-8
Product Highlights
• Leadfree DIP and DSO Package
• Wide Input Range
• Direct sensing, Input Brown-Out Detection
• Optimized for applications which require fast Startup
• Output Power Controllable by External Sense Resistor
• Fast Output Dynamic Response during Load Jumps
• Trimmed, internal fixed Switching Frequency (65kHz)
Features
• Ease of Use with Few External Components
• Supports Wide Input Range
• Average Current Control
• External Current and Voltage Loop Compensation
for Greater User Flexibility
• Trimmed internal fixed Switching Frequency
(65kHz+5% at 25
o
C)
• Direct sensing, Input Brown-Out Detection
with Hysteresis
• Short Startup(SoftStart) duration
• Max Duty Cycle of 95% (at 25
o
C)
• Trimmed Internal Reference Voltage (3V+2% at
25
o
C)
• VCC Under-Voltage Lockout
• Cycle by Cycle Peak Current Limiting
• Output Over-Voltage Protection
• Open Loop Detection
• Soft Overcurrent Protection
• Enhanced Dynamic Response
• Fulfills Class D Requirements of IEC 1000-3-2
Description
The ICE2PCS02/G is a 8-pin wide input range controller
IC for active power factor correction converters. It is de-
signed for converters in boost topology, and requires few
external components. Its power supply is recommended
to be provided by an external auxiliary supply which will
switch on and off the IC.
The IC operates in the CCM with average current control,
and in DCM only under light load condition. The switching
frequency is trimmed and fixed internally at 65kHz. Both
current and voltage loop compensations are done exter-
nally to allow full user control.
There are various protection features incorporated to en-
sure safe system operation conditions. The internal refer-
ence is trimmed (3V+2%) to ensure precise protection and
output control level.
85 ... 265 VAC
EMI-Filter
Voltage Loop
Compensation
Protection Unit
Fixed
Oscillator
Current Loop
Compensation
PWM Logic
Driver
ICE2PCS02 /GCCM PFC
VCC
Auxiliary Supply
V
OU T
Typical Application
Ramp
Generator
ICOMP
VS ENSE
VCO MP
IS ENSE GN D
Nonlinear
Gain
GATE
VINS
Brown-out