FAN7554 Series

Versatile PWM Controller

Catalog

Versatile PWM Controller

Part	Output Configuration	Frequency - Switching	Output Type	Number of Outputs	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Package / Case	Package / Case	Package / Case	Output Phases	Duty Cycle (Max)	Mounting Type	Function	Supplier Device Package	Control Features	Topology	Clock Sync	Synchronous Rectifier	Package / Case [y]	Package / Case [x]
ON Semiconductor FAN7554	Isolation Capable Positive	500 kHz	Transistor Driver	1	85 C	-25 °C	30 V	9 V	0.3 in	8-DIP	7.62 mm	1	95 %	Through Hole	Step-Up/Step-Down	8-DIP	Soft Start	Flyback Forward Converter
ON Semiconductor FAN7554DTF	Isolation Capable Positive	500 kHz	Transistor Driver	1	85 C	-25 °C	30 V	9 V		8-SOIC		1	95 %	Surface Mount	Step-Up/Step-Down	8-SOIC	Soft Start	Flyback Forward Converter			3.9 mm	0.154 in

Catalog

Versatile PWM Controller

Key Features

• Current Mode Control

• Pulse by pulse current limiting

• Low external components

• Under-Voltage Lockout (UVLO): 9 V/1 5V

• Stand-by Current: Typ. 100 µA

• Power Saving Mode Current: Typ. 200 µA

• Operating Current: Typ. 7 mA

• Soft-Start

• On/Off Control

• Overload Protection (OLP)

• Over-Voltage Protection (OVP)

• Over-Current Protection (OCP)

• Over-Current Limit (OCL)

• Operating Frequency up to 500kHz

• 1 A Totem-pole Output Current

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 overload protection, an over current protection, and the over voltage protection, which includes built-in auto restart circuit. The FAN7554 is available in the 8-DIP package as well as the 8-SOP package.