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FSQ0365

Features: · Optimized for Valley Switching (VSC)· Low EMI through Variable Frequency Control and Inherent Frequency Modulation· High-Efficiency through Minimum Voltage Switching· Narrow Frequency Variation Range over Wide Load and Input Voltage Variation· Advanced Burst-Mode Operation for Low Stan...

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SeekIC No. : 004344714 Detail

FSQ0365: Features: · Optimized for Valley Switching (VSC)· Low EMI through Variable Frequency Control and Inherent Frequency Modulation· High-Efficiency through Minimum Voltage Switching· Narrow Frequency Va...

FSQ0365 Data Sheet

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Part Number:
FSQ0365
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/25

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Product Details

Description



Features:

· Optimized for Valley Switching (VSC)
· Low EMI through Variable Frequency Control and
  Inherent Frequency Modulation
· High-Efficiency through Minimum Voltage Switching
· Narrow Frequency Variation Range over Wide Load
  and Input Voltage Variation
· Advanced Burst-Mode Operation for Low Standby
  Power Consumption
· Pulse-by-Pulse Current Limit
· Various Protection Functions: Overload Protection
  (OLP), Over-Voltage Protection (OVP), Abnormal
  Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD)
· Under-Voltage Lockout (UVLO) with Hysteresis
· Internal Start-up Circuit
· Internal High-Voltage SenseFET (650V)
· Built-in Soft-Start (15ms)


Application

· Power Supply for DVP Player and DVD Recorder, Set-Top Box
· Adapter
· Auxiliary Power Supply for PC, LCD TV, and PDP TV


Pinout

Connection Diagram


Specifications

Symbol Characteristic Min. Max. Unit
VSTR Vstr Pin Voltage 500   V
VDS Drain Pin Voltage 650   V
VCC Supply Voltage   20 V
VFB Feedback Voltage Range -0.3 9.0 V
VSync Sync Pin Voltage Range -0.3 9.0 V
IDM Drain Current Pulsed(6) FSQ0365   12 A
FSQ0265   8
FSQ0165   4
FSQ321/311   1.5
EAS Single Pulsed Avalanche Energy(7) FSQ0365   230 mJ
FSQ0265   140
FSQ0165   50
FSQ321/311   10
PD Total Power Dissipation   1.5 W
TJ Recommended Operating Junction Temperature -40   °C
TA Operating Ambient Temperature -40 85 °C
TSTG Storage Temperature -55 150 °C
ESD Human Body Model(8) CLASS1 C  
Machine Model(8) CLASS1 B  
Notes:
6. Repetitive rating: Pulse width limited by maximum junction temperature.
7. L=51mH, starting TJ=25°C.
8. Meets JEDEC standards JESD22-A114 and JESD22-A115.


Description

A Valley Switching Converter FSQ-series generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency. The FSQ-series is an integrated Pulse-Width Modulation (PWM) controller and SenseFET specifically designed for valley switching operation with minimal external components. The PWM controller includes an integrated fixed-frequency oscillator, Under-Voltage Lockout, Leading Edge Blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current sources for loop compensation, and self-protection circuitry.

Compared with discrete MOSFET and PWM controller solutions, the FSQ-series reduces total cost, component count, size and weight; while simultaneously increasing efficiency, productivity, and system reliability. FSQ-series provides a basic platform that is well suited for costeffective designs of valley switching fly-back converters.




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