FSL127H Fairchild Semiconductor, FSL127H Datasheet

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FSL127H

Manufacturer Part Number
FSL127H
Description
The highly integrated FSL127H consists of a current mode Pulse Width Modulator (PWM) and an avalanche-rugged 700V SenseFET
Manufacturer
Fairchild Semiconductor
Datasheet

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Part Number:
FSL127HNY
Manufacturer:
Fairchild Semiconductor
Quantity:
135
© 2010 Fairchild Semiconductor Corporation
FSL127H • Rev. 1.0.2
FSL127H
Green Mode Fairchild Power Switch (FPS™)
Features
Applications
General-purpose switch-mode power supplies and
flyback power converters, including:
Ordering Information
Part Number SenseFET
FSL127HNY
Built-in 5ms Soft-Start Function
Internal Avalanche-Rugged 700V SenseFET
Low Audio Noise
High-Voltage Startup
Fixed PWM Frequency at 100KHz
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 (OLP)
V
V
Constant Power Limit (Full AC Input Range)
Internal OTP Sensor with Hysteresis
SMPS for VCR, SVR, STB, DVD & VCD Player,
Printer, Facsimile, & Scanner
Adapter for Camcorder
DD
DD
Under-Voltage Lockout (UVLO)
Over-Voltage Protection (OVP)
2.0A 700V
Temperature Range
-40°C to +105°C
Operating
8-Pin Dual In-Line Package (MDIP),
JEDEC MS-001, .300" Wide
Description
The highly integrated FSL127H consists of a current
mode Pulse Width Modulator (PWM) and an avalanche-
rugged 700V SenseFET. It is specifically designed for
high-performance offline 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. With the
internal high-voltage startup circuitry, the power loss
due to bleeding resistors is also eliminated. To further
reduce power consumption, the PWM controller is
manufactured using the BiCMOS process, which allows
an operating current of only 3.5mA.
The FSL127H built-in synchronized slope compensation
achieves
proprietary
constant output power limit over a wide AC input
voltage range, from 90V
The FSL127H 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-circuit failure occurs. PWM
output is disabled until V
limit, when the controller starts up again. As long as V
exceeds ~28V, the internal OVP circuit is triggered.
Compared to a discrete MOSFET and controller or RCC
switching converter solution, the FSL127H 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.
Package
stable
external
peak-current-mode
AC
DD
line
to 264V
drops below the UVLO lower
compensation
AC
Packing Method
.
September 2010
control.
Tube
www.fairchildsemi.com
ensures
The
DD

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FSL127H Summary of contents

Page 1

... Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 Description The highly integrated FSL127H consists of a current mode Pulse Width Modulator (PWM) and an avalanche- rugged 700V SenseFET specifically designed for high-performance offline Switch Mode Power Supplies (SMPS) with minimal external components. ...

Page 2

... A 4. Maximum practical continuous power in an open-frame design with sufficient drain pattern as a heat sink =50°C ambient. A Internal Block Diagram © 2010 Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 HV Drain VIN FB VDD GND Figure 1. Typical Flyback Application (2) 230V ± ...

Page 3

... SenseFET Drain. High-voltage power SenseFET drain connection. 8 Drain SenseFET Dain. High-voltage power SenseFET drain connection. © 2010 Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 F – Fairchild Logo Z – Plant Code X – 1-Digit Year Code Y – 1-Digit Week Code TT – 2-Digit Die Run Code T – ...

Page 4

... The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol T Operating Ambient Temperature A © 2010 Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 Parameter (7) (8) <50°C) A (9) Human Body Model: ...

Page 5

... Oscillator Section f Frequency in Nominal Mode OSC f Green-Mode Frequency OSC-G D Maximum Duty Cycle MAX f Frequency Variation vs Frequency Variation vs. Temperature f (11) DT Deviation © 2010 Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 Conditions 700V 560V 0V 125°C A (12) ...

Page 6

... Notes: 11. These parameters, although guaranteed, are not 100% tested in production. 12. Pulse test: pulse width ≤ 300μs, duty ≤ 2%. 13. When activated, the output is disabled and the latch is turned off. © 2010 Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 (Continued) Conditions ...

Page 7

... Typical Characteristics Figure 5. I vs. Temperature DD-ST Figure 7. V vs. Temperature DD-ON Figure 9. V vs. Temperature TH-OLP © 2010 Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 Figure 6. I vs. Temperature DD-OP Figure 8. V vs. Temperature DD-OFF Figure 10. V vs. Temperature DD-OVP 7 www.fairchildsemi.com ...

Page 8

... Typical Characteristics Figure 11. I vs. Temperature HV Figure 13. f vs. Temperature OSC-G Figure 15. V vs. Temperature IN-RL © 2010 Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 Figure 12. f vs. Temperature OSC Figure 14. V vs. Temperature IN-ON Figure 16. V vs. Temperature IN-H 8 www.fairchildsemi.com ...

Page 9

... Typical Characteristics Figure 17. V vs. Temperature IN-L Figure 19. V vs. Temperature FB-OLP Figure 21. V vs. Temperature FB-ZDC © 2010 Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 Figure 18. V vs. Temperature FB-N Figure 20. t vs. Temperature D-OLP Figure 22. I vs. Temperature DD-BM 9 www.fairchildsemi.com ...

Page 10

... The 100kHz. Once V DD-ON PWM frequency starts to linearly decrease from 100kHz to 18kHz to reduce the switching losses decreases below V is fixed at 18kHz and FSL127H enters “deep” green mode to reduce the standby power consumption decreases below V FB burst-mode operation. When V FSL127H stops switching and the output voltage starts to drop, which causes the feedback voltage to rise ...

Page 11

... The FSL127H provides protection functions to prevent the power supply and the load from being damaged. The protection features include: Latch / Auto Recovery Function The FSL127H provides additional protections by the VIN pin, such as pull-HIGH latch and pull-LOW auto recovery that depend on the application. As shown in Figure 28, when V level is higher than 4 ...

Page 12

... High efficiency (>76.74% at full load) meeting Energy Star V2.0 regulation with enough margin Standby power <100mW at no-load condition Provides full protection functions, including: OVP Latch Figure 30. Measured Standby Power © 2010 Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 Input Voltage Range FSL127H 90~264V OTP OLP Latch Auto Restart Figure 32 ...

Page 13

... Core: EE16 Bobbin: EE16 TERMINAL NO Primary-Side Inductance=880μH ±5% Primary-Side Effective Leakage<20μH ±5% © 2010 Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 (Continued) Figure 33. Transformer Diagram WIRE F 4 2UEW 0.3*1 1 2UEW 0.26*1 COPPER SHIELD 10 TEX-E 0.35*1 CORE ROUNDING TAPE ...

Page 14

... 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/. © 2010 Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 6.67 6.096 3.683 3.20 3 ...

Page 15

... Fairchild Semiconductor Corporation FSL127H • Rev. 1.0.2 15 www.fairchildsemi.com ...

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