FSBH0370NY_F116 Fairchild Semiconductor, FSBH0370NY_F116 Datasheet

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FSBH0370NY_F116

Manufacturer Part Number
FSBH0370NY_F116
Description
The highly integrated FSBH-series consists of an integrated current-mode Pulse Width Modulator (PWM) and an avalanche-rugged 700V SenseFET
Manufacturer
Fairchild Semiconductor
Datasheet
© 2010 Fairchild Semiconductor Corporation
FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1
FSBH0F70A _F116, FSBH0170_F116,
FSBH0270_F116, FSBH0370_F116
Green Mode Fairchild Power Switch (FPS™)
Features
Applications
General-purpose switched-mode power supplies and
flyback power converters, including:
Brownout Protection with Hysteresis
Built-In 5ms Soft-Start Function
Internal Avalanche-Rugged 700V SenseFET
Low 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, and Scanner
Adapter for Camcorder
DD
DD
Under-Voltage Lockout (UVLO)
Over-Voltage Protection (OVP)
1
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
Switched-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 circuits 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 up again. As long as V
the internal OVP circuit is triggered.
Compared with a discrete MOSFET and controller or
RCC switching converter solution, the FSBH-series
reduces component count, design size, and weight;
while increasing efficiency, productivity, and system
reliability. These devices provide a basic platform that is
well suited for the design of cost-effective flyback
converters, such as in PC auxiliary power supplies.
designed
DD
drops below the V
FB
is lower than 1.6V, which allows
for
AC
high-performance
to 264V
DD
AC
TH-OLP
.
exceeds 28V,
April 2011
www.fairchildsemi.com
, then the
offline

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FSBH0370NY_F116 Summary of contents

Page 1

... SMPS for VCR, SVR, STB, DVD & DVCD Player, Printer, Facsimile, and Scanner  Adapter for Camcorder © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 Description The highly integrated FSBH-series consists of an integrated current-mode Pulse Width Modulator (PWM) and an avalanche-rugged 700V SenseFET ...

Page 2

... Ordering Information Part Number SenseFET FSBH0F70ANY_F116 0.5A 700V FSBH0170NY_F116 1.0A 700V FSBH0270NY_F116 2.0A 700V FSBH0370NY_F116 3.0A 700V Typical Application Diagram Output Power Table (1) Product Adapter FSBH0F70A_F116 FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 17.5W Notes: 1. The maximum output power can be limited by junction temperature. 2. 230 V or 100/115 V with doublers Typical continuous power in a non-ventilated enclosed adapter with sufficient drain pattern as a heat sink at 50C ambient ...

Page 3

... Block Diagram Figure 2. Figure 3. © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 FSBH0170/0270/0370_F116 Internal Block Diagram FSBH0F70A_F116 Internal Block Diagram 3 www.fairchildsemi.com ...

Page 4

... SenseFET Drain. High-voltage power SenseFET drain connection. 7 Drain SenseFET Drain. High-voltage power SenseFET drain connection. 8 Drain SenseFET Drain. High-voltage power SenseFET drain connection. © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 – Fairchild Logo F Z – Plant Code X – 1-Digit Year Code Y – ...

Page 5

... 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 FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 Parameter FSBH0x70/A_F116 FSBH0F70A_F116 FSBH0170_F116 FSBH0270_F116 ...

Page 6

... Input Capacitance ISS C Output Capacitance OSS Reverse Transfer C RSS Capacitance t Turn-On Delay D(ON) t Rise Time R t Turn-Off Delay D(OFF) t Fall Time F © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 Condition V =700V =700V =560V, V =0V, T =125 FSBH0F70A_F116 ...

Page 7

... Pull-HIGH Latch Debounce Time IN-H V Pull-LOW Auto-Recovery Trigger Level IN-L Feedback Input Section A FB Voltage to Current-Sense Attenuation V Z Input Impedance FB V Output High Voltage FB-OPEN © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 (Continued) Condition FSBH0170_F116 FSBH0270_F116 V – 0.16V DD-ON FSBH0370_F116 FSBH0F70A_F116 V – 0.16V DD-ON V ...

Page 8

... When activated, the output is disabled and the latch is turned off. 14. The threshold temperature for enabling the output again and resetting the latch after over-temperature protection has been activated. 15. These parameters, although guaranteed, are tested in wafer process. © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 (Continued) Condition ...

Page 9

... Temperature(°C) Figure 8. V vs. Temperature DD-ON 6.6 6.4 6.2 6.0 5.8 5.6 5.4 5.2 5.0 -40 -25 - Temperature(°C) Figure 10. V vs. Temperature TH-OLP 4.0 3.5 3.0 2.5 2.0 1.5 1.0 -40 -25 - Temperature(°C) Figure 12. I vs. Temperature HV © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 3.02 3.00 2.98 2.96 2.94 2.92 2.90 2.88 2. 110 125 -40 Figure 7. 8.3 8.2 8.1 8.0 7.9 7.8 7 110 125 -40 Figure 9. 28.42 28.41 28.40 28.39 28.38 28.37 28.36 28.35 50 ...

Page 10

... V vs. Temperature 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 © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 19.2 19.1 19.0 18.9 18.8 18.7 18.6 - 110 125 Figure 15. 1.17 1.16 1.15 1.14 1.13 1.12 1. 110 125 -40 Figure 17. 0.34 0.33 0.32 0.31 0.30 0.29 0. ...

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 © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 1.800 1.700 1.600 1.500 1.400 1.300 1.200 110 125 -40 Figure 23. 55.0 54.5 54.0 53.5 53.0 52.5 52.0 51 110 ...

Page 12

... PWM switch and output diode. Figure 27. Soft-Start Function © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 Brown-In/Out Function FSBH0x70 has a built-in internal brown-in/out protection comparator monitoring voltage of VIN pin. Figure 28 shows a resistive divider with low-pass filtering for line- voltage detection on the VIN pin ...

Page 13

... Burst mode alternately enables and disables switching, thereby reducing switching loss to improve power saving, as shown in Figure 31. Figure 31. Burst-Mode Operation © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 H/L Line Over-Power Compensation To limit the output power of the converter constantly, high/low line over-power compensation is included. ...

Page 14

... Figure 34. OLP Operation © 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 V Over-Voltage Protection (OVP over-voltage protection prevents IC damage caused DD by over voltage on the VDD pin. The OVP is triggered when V voltage reaches 28V. Debounce time (typically DD 130µs) prevents false trigger by switching noise. ...

Page 15

... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. 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’ ...

Page 16

... Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1 16 www.fairchildsemi.com ...

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