Features

• Green Current Mode PWM Control

• Low Operating Current: Max 4mA

• Burst Mode Operation

• Internal High Voltage Start-up Switch

• Under Voltage Lockout (UVLO): 12V/8V

• Latch Protection & Soft Start Function

• Over Voltage Protection: 19V

• Operating Frequency up to 300kHz

• Max Duty Cycle: 95%

Typical Applications

• Off-Line Adapter Applications

• Auxiliary Power Supplies

Description

The FAN7601 is a green programmable frequency current

mode PWM controller. It 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 FAN7601 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.