TECHNICAL DATA
External Components Reliable and Flexible SMPS Controller
DESCRIPTION
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.
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Integrated Start–Up Current Source
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Lossless Off–Line Start–Up
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Direct Off–Line Operation
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Fast Start–Up
General Features
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Flexibility
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Duty Cycle Control
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Under-voltage Lockout with Hysteresis
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On Chip Oscillator Switching Frequency 40, 75, or 100 kHz
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Secondary Control with Few External Components
Protections
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Maximum Duty Cycle Limitation
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Cycle by Cycle Current Limitation
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Demagnetization (Zero Current Detection) Protection
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“Over VCC Protection” Against Open Loop
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Programmable Low Inertia Over Voltage Protection against Open Loop
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Internal Thermal Protection
SMPS Controller
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Pulsed Mode Techniques for a Very High Efficiency Low Power Mode
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Lossless Startup
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Low dV/dT for Low EMI Radiations
IL44608N
PACKAGE
PDIP-8
Pin Connection
Ordering Information
Device
IL44608N40
IL44608N75
IL44608N100
Switching Frequency
40 kHz
75 kHz
100 kHz
Package
Plastic
DIP–8
Plastic
DIP–8
Plastic
DIP–8
1
IKSEMICON [ IK SEMICON CO., LTD ]
