FEBFSQ500L_H257V1 Fairchild Semiconductor, FEBFSQ500L_H257V1 Datasheet - Page 3

• Manufacturer Part Number: FEBFSQ500L_H257V1
• Description: Power Management IC Development Tools Compact 2W Auxiliary Power Supply
• Manufacturer: Fairchild Semiconductor
• Type: PWM Controllersr

Specifications of FEBFSQ500L_H257V1

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: FSQ500L
• Input Voltage: 90 VAC to 264 VAC
• Output Voltage: 5.1 V
• Output Current: 400 mA

1. Introduction
© 2011 Fairchild Semiconductor Corporation
1.1. General Description
1.2. Features
This user guide supports the evaluation kit for the FSQ500L. It should be used in
conjunction with the FSQ500L datasheet as well as Fairchild’s application notes and
technical support team. Please visit Fairchild’s website at www.fairchildsemi.com.
This engineering report describes a 2.04W power supply using a FSQ500L. This power
supply is targeted for a flyback converter replaces linear power supplies with low cost
and small size.
This device combines a current-mode Pulse Width Modulator (PWM) with a SenseFET
and high-voltage regulator connected from the DRAIN pin to supply the V
does not need to use bias winding and associated external components.
Using a SOT-223 package, FSQ500L reduces total size and weight while increasing
efficiency, productivity, and system reliability. Using FSQ500L, this design example for
2.04W can be implemented with few external components and minimized cost.
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Single-Chip 700V SenseFET Power Switch
Precision Fixed Operating Frequency: 130kHz
No-load consumption 250mW at 265V
with External Bias
Internal Startup Switch
Soft-Start Time Tuned by External Capacitor
Under-Voltage Lockout (UVLO) with Hysteresis
Pulse-by-Pulse Current Limit
Overload Protection (OLP) and Internal Thermal Shutdown Function (TSD) with
Hysteresis
Auto-Restart Mode
No Need for Auxiliary Bias Winding
3
AC
with Burst Mode and Down to 60mW
FEBFSQ500L_H257v1 • Rev. 1.0.1
CC
. This device