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The ICE1PCS02/G is a 8-pin wide input range controller IC for active power factor correction converters. It is designed 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 externally to allow full user control.
There are various protection features incorporated to ensure safe system operation conditions. The internal reference is trimmed (5V+2%) to ensure precise protection and output control level.
The ICE1PCS02/G is a design variant of ICE1PCS01 to incorporate the new input brown-out protection function and optimised to have a faster startup time with controlled peak startup current.
ICE1PCS02 Maximum Ratings
Parameter
Symbol
Limit Values
Unit
Remarks
min.
max.
VCC Supply Voltage
VCC
-0.3
22
V
VINS Voltage
VVINS
-0.3
20
V
ICOMP Voltage
VICOMP
-0.3
7
V
ISENSE Voltage
VISENSE
-24
7
V
ISENSE Current
IISENSE
-1
1
mA
Recommended R2=220W
VSENSE Voltage
VVSENSE
-0.3
7
VSENSE Current
IVSENSE
-1
1
mA
R3>400kW
VCOMP Voltage
VVCOMP
-0.3
7
V
GATE Voltage
VGATE
-0.3
22
V
Clamped at 11.5V(typ) if driven internally.
Junction Temperature
Tj
-40
150
Storage Temperature
TS
-55
150
Thermal Resistance Junction-Ambient for PG-DSO-8-13
RthJA (DSO)
-
185
K/W
PG-DSO-8-13
Thermal Resistance Junction-Ambient for PG-DIP-8-4
RthJA(DIP)
-
90
K/W
PG-DIP-8-4
ESD Protection
VESD
-
2
kV
Human Body Model1)
1) According to EIA/JESD22-A114-B (discharging a 100pF capacitor through a 1.5kW series resistor)
ICE1PCS02 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+7.7% at 25oC) • Direct sensing, Input Brown-Out Detection with Hysteresis • Short Startup(SoftStart) duration • Max Duty Cycle of 97% (typ) • Trimmed Internal Reference Voltage (5V+2%) • VCC Under-Voltage Lockout • Cycle by Cycle Peak Current Limiting • Over-Voltage Protection • Open Loop Detection • Soft Overcurrent Protection • Enhanced Dynamic Response • Fulfills Class D Requirements of IEC 1000-3-2