| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 4 Pin |
| Case/Package | TO-261-4 |
| Power Rating | 2.5 W |
| Number of Outputs | 1 Output |
| Input Voltage (DC) | 10.0 V |
| Output Current | 0.245 A |
| Breakdown Voltage | 700 V |
| Supply Current | 0.76 mA |
| Number of Positions | 4 Position |
| Power Dissipation | 780 mW |
| Switching Frequency | 130 kHz |
| Duty Cycle | 60 % |
| Input Voltage (AC Max) | 265 v |
| Input Voltage (AC Min) | 85 v |
| Output Current (Min) | 0.245 A |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 780 mW |
| Input Voltage | 10 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
| Size-Height | 1.7 mm |
| Operating Temperature | -40℃ ~ 85℃ |
The FSQ500L is an Integrated Power Switch Pulse Width Modulator with 130kHz frequency and no bias winding for 2.5W offline fly-back converters. It is specially designed for a replacement of linear power supplies. This device combines current-mode Pulse Width Modulator (PWM) with a sense-FET. The integrated PWM controller features a fixed oscillator, under voltage lockout (UVLO) protection, overload protection (OLP), leading-edge blanking (LEB), an optimized gate turn-ON/OFF driver, thermal shutdown (TSD) protection with hysteresis and temperature-compensated precision-current sources for loop compensation. When compared to a linear power supply, the FSQ500L device reduces total size and weight, while increasing efficiency, productivity and system reliability. This device provides a basic platform for fly-back converters.
● Internal start-up switch
● Soft-start time tuned by external capacitor
● Pulse-by-pulse current limit
● Auto-restart mode
● No need for auxiliary bias winding
● 130kHz Precision fixed operating frequency
Fairchild
12 Pages / 0.9 MByte
Fairchild
12 Pages / 0.9 MByte
Fairchild
FAIRCHILD SEMICONDUCTOR FSQ500L AC-DC Off-Line Switcher IC, Green Mode, Flyback, 85VAC - 265VAC, 2.5W, SOT-223-4
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700V Integrated Power Switch with 130kHz frequency and no bias winding for 2.5W offline flyback converters
Fairchild
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