Specification	FAN501AMPX

Duty Cycle	68.5 %
Fault Protection	Over Temperature, Current Limiting, Over Voltage
Frequency - Switching [Max]	140 kHz
Frequency - Switching [Min]	85 kHz
Internal Switch(s)	False
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Isolation	Isolated
Package / Case	10-WQFN Exposed Pad
Supplier Device Package	10-MLP (4x3)
Topology	Flyback
Voltage - Start Up	17.5 V
Voltage - Supply (Vcc/Vdd) [Max]	30 V
Voltage - Supply (Vcc/Vdd) [Min]	6 V

FAN501A Series

Offline DCM / CCM Flyback PWM Controller for Charger Applications

Part	Frequency - Switching [Max]	Frequency - Switching [Min]	Mounting Type	Duty Cycle	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Voltage - Start Up	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Fault Protection	Supplier Device Package	Topology	Output Isolation
ON Semiconductor FAN501AMPX	140 kHz	85 kHz	Surface Mount	68.5 %	-40 °C	125 °C	10-WQFN Exposed Pad	17.5 V	6 V	30 V	Current Limiting Over Temperature Over Voltage	10-MLP (4x3)	Flyback	Isolated
ON Semiconductor FAN501ARMPX
ON Semiconductor FAN501MPX	140 kHz	85 kHz	Surface Mount	68.5 %	-40 °C	125 °C	10-WQFN Exposed Pad	17.5 V	5.8 V	30 V	Current Limiting Over Temperature Over Voltage	10-MLP (4x3)	Flyback	Isolated
ON Semiconductor FAN501MPX	140 kHz	85 kHz	Surface Mount	68.5 %	-40 °C	125 °C	10-WQFN Exposed Pad	17.5 V	5.8 V	30 V	Current Limiting Over Temperature Over Voltage	10-MLP (4x3)	Flyback	Isolated

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Description

General part information

FAN501A Series

The advanced PWM controller, FAN501A, simplifies isolated power supply design that requires CC regulation of the output. The output current is precisely estimated with only the information in the primary side of the transformer and controlled with an internal compensation circuit, removing the output current-sensing loss and eliminating external CC control circuitry. With an extremely low operating current (250 µA), Burst Mode maximizes light-load efficiency, allowing conformance to worldwide Standby Mode efficiency guidelines.Compared with a conventional approach using external control circuit in the secondary side for CC regulation, the FAN501A can reduce total cost, component count, size, and weight; while increasing efficiency, productivity, and system reliability.

Documents

Technical documentation and resources

Package Drawing-511CT-WDFN10 4x3, 0.8P

Package Drawing