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FSQ0265

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

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SeekIC No. : 004344713 Detail

FSQ0265: Features: ·Optimized for Valley Switching (VSC)·Low EMI through Variable Frequency Control andInherent Frequency Modulation·High-Efficiency through Minimum Voltage Switching·Narrow Frequency Variati...

FSQ0265 Data Sheet

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Part Number:
FSQ0265
Supply Ability:
5000

Price Break

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

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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)

·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

·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

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
A
FSQ0165
4
A
FSQ321/311
1.5
A
EAS
 Single Pulsed Avalanche Energy(7) FSQ0365
230
mJ
FSQ0265
140
mJ
FSQ0165
50
mJ
FSQ321/311
10
mJ
PD
 Total Power Dissipation
1.5
W
TJ
 Recommended Operating Junction Temperature
-40
Internally limited
°C
TA
 Operating Ambient Temperature
-40
85
°C
TSTG
 Storage Temperature
-55
150
°C
ESD
 Human Body Model(8)
CLASS1 C
Machine Model(8)
CLASS 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.

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
A
FSQ0165
4
A
FSQ321/311
1.5
A
EAS
 Single Pulsed Avalanche Energy(7) FSQ0365
230
mJ
FSQ0265
140
mJ
FSQ0165
50
mJ
FSQ321/311
10
mJ
PD
 Total Power Dissipation
1.5
W
TJ
 Recommended Operating Junction Temperature
-40
Internally limited
°C
TA
 Operating Ambient Temperature
-40
85
°C
TSTG
 Storage Temperature
-55
150
°C
ESD
 Human Body Model(8)
CLASS1 C
Machine Model(8)
CLASS 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 FSQ-series 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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