FAN7554 Datasheet PDF - Fairchild

●Description

●The FAN7554 is a fixed frequency current mode PWM controller. It is specially designed for off-line and DC to DC converter applications with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated

●reference, an ON/OFF control, a high gain error amplifier, a current sensing comparator, and a high current totem-pole output. The FAN7554 has various protection functions such as an over load protection, an over current protection, and the over voltage protection, which include built-in auto restart circuit. The FAN7554 is available in the 8-DIP package as well as the 8-SOP package.

●Features

●• Current Mode Control

●• Pulse by Pulse Current Limiting

●• Low External Components

●• Under Voltage Lockout(UVLO): 9V/15V

●• Stand-by Current: Typ. 100uA

●• Power Saving Mode Current: Typ. 200uA

●• Operating Current: Typ. 7mA

●• Soft Start

●• On/Off Control

●• Over Load Protection(OLP)

●• Over Voltage Protection(OVP)

●• Over Current Protection(OCP)

●• Over Current Limit(OCL)

●• Operating Frequency up to 500kHz

●• 1A Totem-Pole Output Current