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Fairchild Semiconductor - Green Mode Fairchild Power Switch

Numéro de référence FSL206MR
Description Green Mode Fairchild Power Switch
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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FSL206MR fiche technique
September 2012
FSL206MR
Green Mode Fairchild Power Switch (FPS™)
Features
Internal Avalanche-Rugged SenseFET: 650V
Precision Fixed Operating Frequency: 67kHz
No-Load <150mW at 265VAC without Bias Winding;
<25mW with Bias Winding for FSL206MR, <30mW
with Bias Winding for FSL206MRBN
No Need for Auxiliary Bias Winding
Frequency Modulation for Attenuating EMI
Line Under-Voltage Protection (LUVP)
Pulse-by-Pulse Current Limiting
Low Under-Voltage Lockout (UVLO)
Ultra-Low Operating Current: 300µA
Built-In Soft-Start and Startup Circuit
Various Protections: Overload Protection (OLP),
Over-Voltage Protection (OVP), Thermal Shutdown
(TSD), Abnormal Over-Current Protection (AOCP)
Auto-Restart Mode for All Protections
Applications
SMPS for STB, DVD, and DVCD Player
SMPS for Auxiliary Power
Description
The FSL206MR integrated Pulse-Width Modulator
(PWM) and SenseFET is specifically designed for high-
performance offline Switched-Mode Power Supplies
(SMPS) while minimizing external components. This
device integrates high-voltage power regulators that
combine an avalanche-rugged SenseFET with a
Current-Mode PWM control block.
The integrated PWM controller includes: a 7.8V
regulator, eliminating the need for auxilliary bias
winding; Under-Voltage Lockout (UVLO) protection;
Leading-Edge Blanking (LEB); an optimized gate turn-
on/turn-off driver; EMI attenuator; Thermal Shutdown
(TSD) protection; temperature-compensated precision
current sources for loop compensation; soft-start during
startup; and fault-protection circuitry such as Overload
Protection (OLP), Over-Voltage Protection (OVP),
Abnormal Over-Current Protection (AOCP), and Line
Under-Voltage Protection (LUVP).
The internal high-voltage startup switch and the Burst-
Mode operation with very low operating current reduce
the power loss in Standby Mode. As a result, it is
possible to reach a power loss of 150mW with no bias
winding and 25mW (for FSL206MR) or 30mW (for
FSL206MRBN) with a bias winding under no-load
conditions when the input voltage is 265VAC.
Related Resources
Fairchild Power Supply WebDesigner – Flyback
Design and Simulation – In Minutes at No Expense
AN-4137 — Design Guidelines for Offline Flyback
Converters Using FPS™
AN-4141 — Troubleshooting and Design Tips for
Fairchild Power Switch (FPS™) Flyback
Applications
AN-4147 — Design Guidelines for RCD Snubber of
Flyback
AN-4150 — Design Guidelines for Flyback
Converters Using FSQ-Series Fairchild Power
Switch (FPS™)
© 2011 Fairchild Semiconductor Corporation
FSL206MR • Rev. 1.0.5
www.fairchildsemi.com
Free Datasheet http://www.Datasheet4U.com

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