FSBH0F70A Fairchild Semiconductor, FSBH0F70A Datasheet

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FSBH0F70A

Manufacturer Part Number
FSBH0F70A
Description
Fsbh0f70a, Fsbh0170/a, Fsbh0270/a, Fsbh0370 Green Mode Fairchild Power Switch Fps?
Manufacturer
Fairchild Semiconductor
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FSBH0F70A
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Company:
Part Number:
FSBH0F70ANY-F116
Quantity:
4 500
Part Number:
FSBH0F70ANYN
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
© 2009 Fairchild Semiconductor Corporation
FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0
FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370
Green Mode Fairchild Power Switch (FPS
Features
Applications
General-purpose switch-mode power supplies and
flyback power converters, including:
Brownout Protection with Hysteresis
Built-In 5ms Soft-Start Function
Internal Avalanche Rugged 700V SenseFET
No Acoustic Noise During Light-Load Operation
High-Voltage Startup
Linearly Decreasing PWM Frequency to 18KHz
Peak-Current-Mode Control
Cycle-By-Cycle Current Limiting
Leading-Edge Blanking (LEB)
Synchronized Slope Compensation
Internal Open-Loop Protection
V
V
Internal Auto Restart Circuit (OVP, OTP)
Constant Power Limit (Full AC Input Range)
Internal OTP Sensor with Hysteresis
VIN Pin for Pull-High Latch function and Pull-Low
Auto Recovery Protection
Auxiliary Power Supply for PC and Server
SMPS for VCR, SVR, STB, DVD & DVCD Player,
Printer, Facsimile, & Scanner
Adapter for Camcorder
DD
DD
Under-Voltage Lockout (UVLO)
Over-Voltage Protection (OVP)
Description
The highly integrated FSBH series consists of an
integrated current-mode Pulse Width Modulator (PWM)
and an avalanche-rugged 700V SenseFET. It is
specifically designed for high-performance off-line
Switch Mode Power Supplies (SMPS) with minimal
external components.
The integrated PWM controller features include a
proprietary green-mode function that provides off-time
modulation to linearly decrease the switching frequency
at light-load conditions to minimize standby power
consumption. To avoid acoustic-noise problems, the
minimum PWM frequency is set above 18kHz. This
green-mode function enables the power supply to meet
international power conservation requirements. The
PWM controller is manufactured using the BiCMOS
process to further reduce power consumption. The
FSBH series turns off some internal circuit to improve
power saving when V
an operating current of only 2.5mA.
The FSBH series has built-in synchronized slope
compensation to achieve stable peak-current-mode
control. The proprietary external line compensation
ensures constant output power limit over a wide AC
input voltage range, from 90V
The FSBH series provides many protection functions. In
addition to cycle-by-cycle current limiting, the internal
open-loop protection circuit ensures safety when an
open-loop or output short occurs. PWM output is
disabled until V
controller starts again. As long as V
internal OVP circuit is triggered.
Compared with a discrete MOSFET and controller or
RCC switching converter solution, the FSBH series
reduces total component count, design size, and
weight; while increasing efficiency, productivity, and
system reliability. These devices provide a basic
platform well suited for design of cost-effective flyback
converters, such as in PC auxiliary power supplies.
DD
drops below the V
FB
is lower than 1.6V, which allows
AC
)
to 264V
DD
exceeds 28V, the
TH-OLP
AC
.
May 2009
www.fairchildsemi.com
, then the

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FSBH0F70A Summary of contents

Page 1

... Auxiliary Power Supply for PC and Server SMPS for VCR, SVR, STB, DVD & DVCD Player, Printer, Facsimile, & Scanner Adapter for Camcorder © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 ™ ) Description The highly integrated FSBH series consists of an integrated current-mode Pulse Width Modulator (PWM) and an avalanche-rugged 700V SenseFET ...

Page 2

... Maximum practical continuous power in an open-frame design with sufficient drain pattern as a heat sink, at 50°C ambient. © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 Operating Temperature Range VIN Pin -40°C to +105°C -40°C to +105°C Disable -40° ...

Page 3

... Internal Block Diagram Figure 2. FSBH0170, FSBH0270, FSBH0370 Internal Block Diagram Figure 3. FSBH0F70A, FSBH0170A, FSBH0270A Internal Block Diagram © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 www.fairchildsemi.com ...

Page 4

... Startup. For startup, this pin is pulled HIGH to the line input or bulk capacitor via resistors Drain SenseFET Drain. High-voltage power SenseFET drain connection. © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 – Fairchild Logo – Plant Code ...

Page 5

... Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter T Operating Ambient Temperature A © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 Parameter FSBH0x70/A FSBH0F70A FSBH0170/A (7) FSBH0270/A FSBH0370 ...

Page 6

... Output Capacitance OSS Reverse Transfer C RSS Capacitance t Turn-On Delay Time d(on) t Rise Time r t Turn-Off Delay Time d(off) t Fall Time f © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 Condition FSBH0x70/A V =700V =700V FSBH0x70/A V =560V, V =0V =125° ...

Page 7

... V Attenuation Z Input Impedance FB V Output High Voltage FB-OPEN V Green-Mode Entry FB Voltage FB-N V Green-Mode Ending FB Voltage FB-G V Zero Duty Cycle FB Voltage FB-ZDC © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 (Continued) Condition V – 0.16V DD-ON V =15V <V V =12V, V =1.6V FB FB-ZDC ...

Page 8

... The threshold temperature for enabling the output and resetting the latch after over-temperature protection has been activated. 13. These parameters, although guaranteed, are tested in wafer process. PWM Frequency f OSC f OSC-G © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 (Continued) Condition FSBH0F70A FSBH0x70/A FSBH0F70 V =1.2V IN ...

Page 9

... Temperature(°C) Figure 10. V vs. Temperature TH-OLP -40 -25 - Temperature(°C) Figure 12. I vs. Temperature HV © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 3.02 3.00 2.98 2.96 2.94 2.92 2.90 2.88 2. 110 125 -40 Figure 7. I 8.3 8.2 8.1 8.0 7.9 7.8 7 110 ...

Page 10

... IN-OFF 4.63 4.62 4.61 4.60 4.59 4.58 4.57 -40 -25 - Temperature(°C) Figure 18. V vs. Temperature IN-H 4.75 4.70 4.65 4.60 4.55 4.50 4.45 4.40 4.35 -40 -25 - Temperature(°C) Figure 20. V vs. Temperature FB-OLP © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 19.2 19.1 19.0 18.9 18.8 18.7 18 110 125 -40 Figure 15. f 1.17 1.16 1.15 1.14 1.13 1.12 1. 110 125 -40 Figure 17. V 0.34 0.33 0.32 0.31 0.30 0.29 0.28 50 ...

Page 11

... Temperature(°C) Figure 22. V vs. Temperature FB-G 2.56 2.54 2.52 2.50 2.48 2.46 2.44 2.42 -40 -25 - Temperature(°C) Figure 24. I vs. Temperature DD-ZDC © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 1.800 1.700 1.600 1.500 1.400 1.300 1.200 110 125 -40 Figure 23. V 55.0 54.5 54.0 53.5 53.0 52.5 52.0 51 ...

Page 12

... With a hysteresis FSBH0170/0270/0370 turns on when V Figure 27. Brown In/Out Function on VIN Pin © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 Constant Power Control To limit the output power of the converter constantly, . Typical high/low line compensation is included. Sensing the HV converter input voltage through the VIN pin, the ...

Page 13

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2009 Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 6.67 6.096 3.683 3.20 3 ...

Page 14

... Fairchild Semiconductor Corporation FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.0 14 www.fairchildsemi.com ...

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