TECHNICAL DATA
External Components Reliable and Flexible SMPS Controller
DESCRIPTION
IL44608N
The IL44608N is a high performance voltage mode controller designed
for off–line converters. This high voltage circuit that integrates the start–up
current source and the oscillator capacitor, requires few external components
while offering a high flexibility and reliability.
The device also features a very high efficiency stand–by management
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
General Features
● Flexibility
● Duty Cycle Control
● Under-voltage Lockout with Hysteresis
PACKAGE
PDIP-8
● On Chip Oscillator Switching Frequency 40, 75, or 100 kHz
● Secondary Control with Few External Components
Pin Connection
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
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
Package
Plastic
DIP–8
Plastic
DIP–8
Plastic
DIP–8
IL44608N40
40 kHz
IL44608N75
IL44608N100
75 kHz
100 kHz
1
IKSEMICON [ IK SEMICON CO., LTD ]
