IL44608 Datasheet, PDF (1/13 Pages) IK Semicon Co., Ltd – External Components Reliable and Flexible SMPS Controller

TECHNICAL DATA
External Components Reliable
and Flexible SMPS Controller
IL44608
DESCRIPTION
The IL44608N is a high performance voltage mode controller
designed for off–line converters. This high voltage circuit that inte-
grates the start–up current source and the oscillator capacitor, re-
quires few external components while offering a high flexibility and
reliability.
The device also features a very high efficiency stand–by man-
agement consisting of an effective Pulsed Mode operation. This
technique enables the reduction of the stand–by power consumption
to approximately 1.0 W while delivering 300 mW in a 150 W
SMPS.
● Integrated Start–Up Current Source
● Lossless Off–Line Start–Up
● Direct Off–Line Operation
● Fast Start–Up
PACKAGE
PDIP-8
General Features
● Flexibility
● Duty Cycle Control
● Under-voltage Lockout with Hysteresis
● On Chip Oscillator Switching Frequency 40, 75, or 100 kHz
● Secondary Control with Few External Components
Protections
● Maximum Duty Cycle Limitation
● Cycle by Cycle Current Limitation
● Demagnetization (Zero Current Detection) Protection
● “Over VCC Protection” Against Open Loop
● Programmable Low Inertia Over Voltage Protection
against Open Loop
● Internal Thermal Protection
Pin Connection
SMPS Controller
● Pulsed Mode Techniques for a Very High Efficiency
Low Power Mode
● Lossless Startup
● Low dV/dT for Low EMI Radiations
Ordering Information
Device
Switching Frequency
IL44608N40
40 kHz
IL44608N75
75 kHz
IL44608N100
100 kHz
Package
Plastic
DIP–8
Plastic
DIP–8
Plastic
DIP–8
2011, February, Rev. 01