Product Summary

The MC44608P40G is a high performance voltage mode controller designed for off-line converters. This high voltage circuit that integrates the startup current source and the oscillator capacitor, requires few external components while offering a high flexibility and reliability.

Parametrics

MC44608P40G absolute maximum ratings: (1)Total Power Supply Current, ICC: 30 mA; (2)Output Supply Voltage with Respect to Ground VCC: 16 V; (3)All Inputs except Vi Vinputs: -1.0 to +16 V; (4)Line Voltage Absolute Rating Vi: 500 V; (5)Recommended Line Voltage Operating Condition Vi: 400 V; (6)Power Dissipation and Thermal Characteristics; (7)Maximum Power Dissipation at TA = 85℃ PD: 600 mW; (8)Thermal Resistance, Junction-to-Air RθJA: 100℃/W; (9)Operating Junction Temperature TJ: 150℃; (10)Operating Ambient Temperature TA: -25 to +85℃.

Features

MC44608P40G features: (1)Integrated Startup Current Source; (2)Lossless Off?Line Startup; (3)Direct Off?Line Operation; (4)Fast Startup; (5)Flexibility; (6)Duty Cycle Control; (7)Undervoltage Lockout with Hysteresis; (8)On Chip Oscillator Switching Frequency 40 or 75; (9)Secondary Control with Few External Components; (10)Pb-Free Packages are Available.

Diagrams

MC44608P40G block diagram

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MC44608P40G
MC44608P40G

ON Semiconductor

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