Product Summary

The FAN7601N is a green programmable frequency current mode PWM controller. The FAN7601N is specially designed for the off-line adapter application and the auxiliary power supplies which require high efficiency at a light load and no load. The internal high voltage start-up switch and the burst mode reduce the power loss. The FAN7601N includes some protections such as latch protection and over voltage protection. The latch protection can be used for over voltage protection and/or thermal protection and so on. And the soft start prevents the output voltage over shoot at start up.

Parametrics

FAN7601N absolute maximum ratings: (1)Supply Voltage VCC: 20 V; (2)Input Voltage CS/FB VCS/FB: -0.3 to 20 V; (3)Operating Temperature TOPR: -25 to +125℃; (4)Storage Temperature TSTG: -55 to +150℃; (5)Junction Temperature Tj: 150℃; (6)Output Current IO: 250 mA; (7)Vstr Input Voltage Vstr: 500 V; (8)ESD Capability, HBM Model (All pins except Vcc and Vstr): 2.0 kV; (9)ESD Capability, Machine Model: 300 V.

Features

FAN7601N features: (1)Green Current Mode PWM Control; (2)Low Operating Current: Max 4mA; (3)Burst Mode Operation; (4)Internal High Voltage Start-up Switch; (5)Under Voltage Lockout (UVLO): 12V/8V; (6)Latch Protection & Soft Start Function; (7)Over Voltage Protection: 19V; (8)Operating Frequency up to 300kHz; (9)Max Duty Cycle: 95%.

Diagrams

FAN7601N block diagram

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