FSBH0F70ANY_F116 FAIRCHILD [Fairchild Semiconductor], FSBH0F70ANY_F116 Datasheet

FSBH0F70ANY_F116

Manufacturer Part Number

FSBH0F70ANY_F116

Description

Green Mode Fairchild Power Switch

Manufacturer

FAIRCHILD [Fairchild Semiconductor]

Datasheet

1.FSBH0F70ANY_F116.pdf (16 pages)

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H&T Electronics

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FSBH0F70ANY_F116FSBH0F70ANY-F116

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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

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

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

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

drops below the V

is lower than 1.6V, which allows

for

high-performance

to 264V

TH-OLP

exceeds 28V,

April 2011

www.fairchildsemi.com

, then the

offline

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FSBH0F70ANY_F116 Summary of contents

Page 1

FSBH0F70A _F116, FSBH0170_F116, FSBH0270_F116, FSBH0370_F116 Green Mode Fairchild Power Switch (FPS™) Features  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 ...

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

Pin Configuration Figure 4. Pin Definitions Pin # Name Description 1 GND Ground. SenseFET source terminal on primary side and internal controller ground. Power Supply. The internal protection circuit disables PWM output as long VDD OVP trigger ...

Page 5

Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure ...

Page 6

Electrical Characteristics V =15V and T =25C unless otherwise specified Symbol Parameter SenseFET Section Drain-Source BV DSS Breakdown Voltage Zero-Gate-Voltage I DSS Drain Current Drain-Source On- R DS(ON) (12) State Resistance C Input Capacitance ISS C Output Capacitance ...

Page 7

Electrical Characteristics V =15V and T =25C unless otherwise specified Symbol Parameter Control Section V Section DD V Start Threshold Voltage DD-ON V Minimum Operating Voltage DD-OFF I Startup Current DD-ST I Operating Supply Current DD-OP I Operating ...

Page 8

Electrical Characteristics V =15V and T =25C unless otherwise specified Symbol Parameter V Green-Mode Entry FB Voltage FB-N V Green-Mode Ending FB Voltage FB-G V Zero Duty Cycle FB Voltage FB-ZDC FB Open-Loop V FB-OLP Trigger Level t ...

Page 9

Typical Characteristics -40 -25 - Temperature(°C) Figure 6. I vs. Temperature DD-ST 12.4 12.2 12.0 11.8 11.6 11.4 11.2 -40 -25 - Temperature(°C) Figure 8. V ...

Page 10

Typical Characteristics 101.5 101.0 100.5 100.0 99.5 99.0 98.5 98.0 97.5 -40 -25 - Temperature(°C) Figure 14. f vs. Temperature OSC 0.64 0.63 0.62 0.61 0.60 0.59 0.58 -40 -25 - Temperature(°C) Figure 16. ...

Page 11

Typical Characteristics 2.20 2.15 2.10 2.05 2.00 1.95 1.90 1.85 1.80 -40 -25 - 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 ...

Page 12

Functional Description Startup Operation The HV pin is connected to bulk voltage through an external resistor shown in Figure 26. When AC HV voltage is applied to the power system, an internal HV startup circuit provides a ...

Page 13

Brown-In Function of FSBH0F70A The VIN pin functions are disabled in FSBH0F70A, but FSBH0F70A has brown-in protection in the VDD pin. There is a discharge current internal from V during startup. The HV source current must be larger than I ...

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 ...

Page 15

Physical Dimensions Figure 35. 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 ...

Page 16

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

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