FSCM0465RIWDTU

Duty Cycle:	80%
Base Part Number:	FSCM0465
Mounting Type:	Surface Mount
Supplier Device Package:	I2-PAK-6L (Forming)
Package / Case:	TO-262-6 Formed Leads
Operating Temperature:	-25°C ~ 85°C (TA)
Control Features:	--
Fault Protection:	Current Limiting, Over Load, Over Temperature, Over Voltage
Power (Watts):	70W
Frequency - Switching:	66kHz
Series:	FPS™
Voltage - Supply (Vcc/Vdd):	8 V ~ 20 V
Voltage - Start Up:	12V
Topology:	Flyback
Voltage - Breakdown:	650V
Internal Switch(s):	Yes
Output Isolation:	Isolated
Part Status:	Obsolete
Packaging:	Tube

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PMIC, short for power management IC, is a specialized circuit that regulates the voltage and current supplied to other circuits. AC DC converters, offline switchers, and FSCM0465RIWDTU are all types of PMICs. FSCM0465RIWDTU is a power supply controller that is mainly used in offline switching power supplies (also known as offline switchers).An offline switcher is essentially a power supply without AC or DC input power, which uses DC or AC stored energy to provide a regulated voltage output. It is widely used in home, industry and automotive applications.FSCM0465RIWDTU integrates many power management functions into a single chip, including a non-edit-mode (fixed-output) operation, digital pulse width modulation (PWM) generation, capacitor pre-bias regulation and protection against overcurrent and overheating. It is designed to address the needs of offline switcher designs, where input power is connected to the AC mains directly and output power is fed to various loads which require a regulated power source. The FSCM0465RIWDTU includes a fixed voltage-mode control loop that minimizes output voltage ripple and allows it to operate in a high-efficiency mode while maintaining constant output voltage. The pulse-width modulation (PWM) generates a constant frequency pulse-width-modulated waveform that is used to control the output voltage of the converter. Furthermore, the PWM function provides an extra switching frequency flexibility that helps to optimize the design of the offline switcher.The FSCM0465RIWDTU also provides a capacitor pre-charge circuit for a wide range of applications. This helps to reduce the input current inrush condition that can otherwise occur when turning on the power supply, thus reducing the start-up time and providing power savings.Additionally, the FSCM0465RIWDTU includes an over-current protection circuit that prevents the output voltage from dropping when it is exceeded. It also features an over-temperature protection circuit, which ensures safe operation by shutting down the circuit when the temperature rises above its set value.Lastly, the FSCM0465RIWDTU has an additional input for a 2nd output, allowing designers to optimize the power supply design for multiple outputs, as well as providing additional output voltage tracking.In conclusion, the FSCM0465RIWDTU is a power supply controller suitable for a variety of offline switcher designs. It integrates several functions in a single device, reducing component count, board size and power loss. Its fixed voltage-mode control loop minimizes output voltage ripple, and its PWM offers additional switching frequency flexibility. Furthermore, the capacitor pre-charge function and protection against overcurrent and overheating help to ensure safe, efficient operation.

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