FSQ110 Series

650V Integrated Power Switch for 8Watt offline flyback converters

Catalog

650V Integrated Power Switch for 8Watt offline flyback converters

Part	Voltage - Start Up	Package / Case	Package / Case	Package / Case	Output Isolation	Power (Watts)	Topology	Frequency - Switching	Fault Protection	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Duty Cycle	Supplier Device Package	Internal Switch(s)	Voltage - Breakdown	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type
ON Semiconductor FSQ110	12 V	0.3 in	8-DIP	7.62 mm	Isolated	17 W	Flyback	100 kHz	Current Limiting Over Load Over Temperature Over Voltage	20 V	8 V	60 %	8-DIP		650 V	85 C	-25 °C	Through Hole
ON Semiconductor FSQ110	12 V	0.3 in	8-DIP	7.62 mm	Isolated	17 W	Flyback	100 kHz	Current Limiting Over Load Over Temperature Over Voltage	20 V	8 V	60 %	8-MDIP		650 V	85 C	-25 °C	Through Hole

Catalog

650V Integrated Power Switch for 8Watt offline flyback converters

Key Features

• Internal Avalanche-Rugged 650V SenseFET

• Consumes only 0.65W at 230VAC& 0.3W Load with Burst-Mode Operation

• Precision Fixed Operating Frequency: 100KHz

• Internal Start-up Circuit and Built-in Soft-Start

• Pulse-by-Pulse Current Limiting and Auto-Restart Mode

• Over-Voltage Protection (OVP), Overload Protection (OLP), Internal Thermal Shutdown Function (TSD)

• Under-Voltage Lockout (UVLO)

• Low Operating Current: 3mA

• Adjustable Peak Current Limit

Description

The FSQ110 consists of an integrated, current-mode, Pulse Width Modulator (PWM) and an avalanche-rugged 650V SenseFET. It is specifically designed for high-performance off-line Switch-Mode Power Supplies (SMPS) with minimal external components. The integrated PWM controller features include: a fixed-frequency generating oscillator, Under-Voltage Lockout (UVLO) protection, Leading-Edge Blanking (LEB), an optimized gate turn-on/ turn-off driver, Thermal Shutdown (TSD) protection, and temperature-compensated precision current sources for loop compensation and fault protection circuitry. Compared to a discrete MOSFET and controller or RCC switching converter solution, the FSQ110 reduces total component count, design size, and weight while increasing efficiency, productivity, and system reliability. These devices provide a basic platform that is well suited for the design of cost-effective flyback converters.