FSB147H

Datasheet Buy Sample

mWSaver™ Fairchild Power Switch (FPS™)

General Description

The FSB147H is a next-generation, green-mode Fairchild Power Switch (FPS™) incorporating Fairchild’s innovative mWSaver™ technology, which dramatically reduces standby and no-load power consumption, enabling conformance to all worldwide Standby Mode efficiency guidelines. It integrates an advanced current-mode pulse width modulator (PWM) and an avalanche-rugged 700V SenseFET in a single package, allowing auxiliary power designs with higher standby energy efficiency, reduced size, improved reliability, and lower system cost than previous solutions.

Fairchild Semiconductor’s mWSaver™ technology offers best-in-class minimum no-load and light-load power consumption. An innovative Ax-CAP™ method, one of the five proprietary mWSaver™ technologies, minimizes losses in the EMI filter stage by eliminating the X-cap discharge resistors while still meeting IEC61010-1 safety requirement. mWSaver™ Green Mode gradually decreases switching frequency as load decreases to minimize switching losses.     A new proprietary asynchronous jitter decreases EMI emission and built-in synchronized slope compensation allows stable peak-current-mode control over a wide range of input voltage. The proprietary internal line compensation ensures constant output power limit over entire universal line voltage range.

Requiring a minimum number of external components, FSB147H provides a basic platform that is well suited for the cost-effective flyback converter design with low standby power consumption.

Product Status/Pricing/Packing

Product Product Status Eco Status *Pricing Package Type Leads Packing Method Package Drawing **Package Marking Convention Qualification Support RoHS IPC1752 RoHS/REACH/
JIG Certificate of Compliance
FSB147HNY Full Production Green as of Aug 2011 $1.15 MDIP 8L 8 RAIL PDF Line 1:$Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code) &K
Line 2:B147H
Line 3:NYA
Moisture Sensitivity Level (MSL) :  NA  
Max Reflow Temp :  999  
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Features

    MWSaver™ Technology
    ■ Achieve Low No-Load Power Consumption Less than 40mW at 230VAC (EMI Filter Loss Included)
    ■ Meet 2013 ErP Standby Power Regulation (Less than 0.5W Consumption with 0.25W Load) for ATX Power and LCD TV Power
    ■ Eliminate X-Cap Discharge Resistor Loss with
    Ax-CAP™ Technology
    ■ Linearly Decreased Switching Frequency at Light-Load Condition and Advanced Burst Mode Operation at No-Load Condition
    ■ 700V High-Voltage JFET Startup Circuit to Eliminate the Startup Resistor Loss
    Highly Integrated with Rich Features
    ■ Internal Avalanche-Rugged 700V SenseFET
    ■ Built-in 10ms Soft-Start
    ■ Peak-Current-Mode Control
    ■ Cycle-by-Cycle Current Limiting
    ■ Leading-Edge Blanking (LEB)
    ■ Synchronized Slope Compensation
    ■ Proprietary Asynchronous Jitter to Reduce EMI
    Advanced Protection
    ■ Internal Overload / Open-Loop Protection (OLP)
    ■ VDD Under-Voltage Lockout (UVLO)
    ■ VDD Over-Voltage Protection (OVP)
    ■ Constant Power Limit (Full AC Input Range)
    ■ Internal Auto Restart Circuit (OLP, VDD OVP, OTP)
    ■ Internal OTP Sensor with Hysteresis
    ■ Adjustable Peak Current Limit

Applications

  • Desktop PC
  • LCD TV
  • PDP TV
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