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.
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
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
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