FSQ0265 Fairchild Semiconductor, FSQ0265 Datasheet

no-image

FSQ0265

Manufacturer Part Number
FSQ0265
Description
Green Mode Fairchild Power Switch Fps ?for Valley Switching Converter
Manufacturer
Fairchild Semiconductor
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FSQ0265RL
Manufacturer:
Fairchild Semiconductor
Quantity:
135
Company:
Part Number:
FSQ0265RLX
Quantity:
765
Part Number:
FSQ0265RN
Manufacturer:
Fairchild Semiconductor
Quantity:
135
Company:
Part Number:
FSQ0265RN
Quantity:
3 000
FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4
© 2006 Fairchild Semiconductor Corporation
FPS
FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311
Green Mode Fairchild Power Switch (FPS™) for
Valley Switching Converter -
Features
T
T
T
T
T
T
T
T
T
T
T
Applications
T
T
T
Related Application Notes
T
T
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)
Power Supply for DVP Player and DVD Recorder,
Set-Top Box
Adapter
Auxiliary Power Supply for PC, LCD TV, and PDP TV
AN-4137, AN-4141, AN-4147, AN-4150 (Flyback)
AN-4134 (Forward)
TM
is a trademark of Fairchild Semiconductor Corporation.
Description
A Valley Switching Converter generally shows lower EMI
and
conventional hard-switched converter with a fixed
switching frequency. The FSQ-series is an integrated
Pulse-Width
SenseFET specifically designed for valley switching
operation with minimal external components. The PWM
controller
oscillator,
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. This device
provides a basic platform that is well suited for cost-
effective designs of valley switching fly-back converters.
Low EMI and High Efficiency
higher
includes
Under-Voltage
power
Modulation
an
conversion
integrated
Lockout,
(PWM)
efficiency
controller
Leading
fixed-frequency
www.fairchildsemi.com
May 2007
than
Edge
and
a

Related parts for FSQ0265

FSQ0265 Summary of contents

Page 1

... AN-4137, AN-4141, AN-4147, AN-4150 (Flyback) T AN-4134 (Forward FPS is a trademark of Fairchild Semiconductor Corporation. © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 Low EMI and High Efficiency Description A Valley Switching Converter generally shows lower EMI and higher power conversion conventional hard-switched converter with a fixed switching frequency ...

Page 2

... Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambie nt temperature. 4. Maximum practical continuous power in an open-frame design at 50°C ambient. 5. PB-free package per JEDEC J-STD-020B. © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 Maximum Output Power Cur- R ...

Page 3

... Internal Block Diagram 0.35/0. Burst ref delay FB Vfb Sync 6V V ovp © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 Vstr Drain PWM Sync GND Vcc Vfb Figure 1. Typical Flyback Application Sync 4 + OSC 0.7V/0. PWM S Q Soft- LEB R ...

Page 4

... The drain pins are designed to connect directly to the primary lead of the transformer and are 6,7,8 Drain capable of switching a maximum of 700V. Minimizing the length of the trace connecting these pins to the transformer will decrease leakage inductance. © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 GND D Vcc D 8-DIP ...

Page 5

... All items are tested with the standards JESD 51-2 and 51-10 (DIP). 10. Free-standing, with no heat-sink, under natural convection. 11. Infinite cooling condition - refer to the SEMI G30-88. 12. Measured on the package top surface. © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 = 25°C, unless otherwise specified. A Characteristic FSQ0365 ...

Page 6

... Turn-Off Delay Time d(off) t Fall Time f Control Section t Maximum On Time1 ON.MAX1 t Maximum On Time2 ON.MAX2 t Blanking Time1 B1 t Blanking Time2 B2 © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 Condition 100µ 560V DS FSQ0365 FSQ0265 T = 25° 0. FSQ0165 FSQ321/311 ...

Page 7

... STR Notes: 13. Pulse test: Pulse-Width=300Ps, duty=2% 14. Though guaranteed not 100% tested in production. 15. Propagation delay in the control IC. 16. Includes gate turn-on time. © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 (Continued) Condition T = 25° sync All but Q321 ...

Page 8

... Constant frequency Operation method PWM Frequency EMI reduction modulation Burst-mode operation Fixed burst peak Protection © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 FSQ-Series FSQ-Series Advantages Improved efficiency by valley switching T Valley switching operation Reduced EMI noise T Valley switching & ...

Page 9

... Temperature [°C] Figure 6. UVLO Stop Threshold Voltage (V vs 1.2 1.0 0.8 0.6 0.4 0.2 0.0 - Temperature [°C] Figure 8. Initial Switching Frequency (f © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 = 25°C. A 1.2 1.0 0.8 0.6 0.4 0.2 0.0 75 100 125 -25 ) vs. T Figure 5. UVLO Start Threshold Voltage ( 1.2 1.0 0.8 0.6 ...

Page 10

... Temperature [°C] Figure 12. Shutdown Delay Current (I 1.2 1.0 0.8 0.6 0.4 0.2 0.0 - Temperature [°C] Figure 14. Burst-Mode Low Threshold Voltage (V ) vs. T burl © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 (Continued) = 25°C. A 1.2 1.0 0.8 0.6 0.4 0.2 0.0 75 100 125 -25 ) vs. T Figure 11. Feedback Source Current ( 1.2 1.0 0.8 0.6 ...

Page 11

... Temperature [°C] Figure 16. Sync High Threshold Voltage (V 1.2 1.0 0.8 0.6 0.4 0.2 0.0 - Temperature [°C] Figure 18. Shutdown Feedback Voltage (V © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 (Continued) = 25°C. A 1.2 1.0 0.8 0.6 0.4 0.2 0.0 75 100 125 -25 ) vs. T Figure 17. Sync Low Threshold Voltage ( 1.2 1.0 0.8 0.6 0.4 0.2 0.0 75 ...

Page 12

... Therefore, the peak value of the FB current through the SenseFET is limited. © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 2.2 Leading Edge Blanking (LEB): At the instant the internal SenseFET is turned on, a high-current spike usually occurs through the SenseFET, caused by primary-side capacitance and secondary-side rectifier reverse recovery ...

Page 13

... Sense FET is limited, and therefore the maximum input power is restricted with a given input © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 voltage. If the output consumes more than this maximum power, the output voltage (V voltage. This reduces the current through the opto- ...

Page 14

... BURH resumes. The feedback voltage then falls and the process repeats. Burst-mode operation alternately enables and disables switching of the power SenseFET, thereby reducing switching loss in standby mode. © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0 set ...

Page 15

... = max Figure 27. Valley Switching with Limited Frequency © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 67kHz I DS 59kHz 55kHz A Burst mode FSQ0365RN Rev. 00 Figure 28. Switching Frequency Range ...

Page 16

... C102 100nF,275V AC LF101 40mH C101 100nF 275V AC TNR F101 10D471K FUSE AC IN © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 Input Voltage Rated Output Power Range 85-265V AC input and 0.5W load) AC EER2828 1 C104 R102 2 10nF 56kŸ 630V D101 ...

Page 17

... Insulation: Polyester Tape t = 0.050mm, 2 Layers Insulation: Polyester Tape t = 0.050mm, 2 Layers 4. Electrical Characteristics Inductance Leakage 5. Core & Bobbin Core: EER2828 (Ae=86.66mm T Bobbin: EER2828 T © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 EER2828 16V 10 N 12V 9 N 3.4V 8 6mm 7 ...

Page 18

... C204 470µF/35V C205 1000µF/10V C206 1000µF/10V C207 1000µF/10V C208 1000µF/10V C209 100nF /50V © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 Note Part 1W L201 1/2W L202 1/4W L203 1/4W L204 1/4W 1/4W D101 ...

Page 19

... RT1 5D 100kŸ FUSE 10PF 10PF 400V 400V * : optional components © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 Input Voltage Rated Output Power Range 85-265V 8W AC input and 0.5W load 4.7nF EE1927 1 CS5 RS5 6.8nF 2 150kŸ ...

Page 20

... Insulation: Polyester Tape t = 0.025mm, 2 Layers Insulation: Polyester Tape t = 0.025mm, 4 Layers 4. Electrical Characteristics Inductance Leakage 5. Core & Bobbin 2 Core: EE1927 (Ae=23.4mm T Bobbin: EE1927 T © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 3mm 12 N -12V Lp/2 (0.2I NVcc 2 (0.1~0.15I) Shield winding (0.1~0.15I 12V N12V & ...

Page 21

... C5 100µF/35V C11 680µF/10V C12 680µF/10V C15 680µF/10V C16 680µF/10V C19 68nµF/50V C1 4.7nF/375V AC © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 Note Part 1/4W L2 1/4W L1 1/2W L3 1/4W L5 1/4W L6 1/4W 2W D2,3,4,5 1W ...

Page 22

... Package Dimensions 8-DIP Dimensions are in millimeters unless otherwise noted. © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 Figure 33. 8-Lead, Dual In-Line Package 22 www.fairchildsemi.com ...

Page 23

... Package Dimensions (Continued) 8-LSOP Dimensions are in millimeters unless otherwise noted. MKT-MLSOP08ArevA © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 Figure 34. 8-Lead, LSOP Package 23 www.fairchildsemi.com ...

Page 24

... Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 24 www.fairchildsemi.com ...

Related keywords