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FSB127H 其他数据使用手册 - Fairchild（飞兆/仙童）
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Fairchild（飞兆/仙童）
描述:
mWSaverâ ?? ¢飞兆功率开关（ FPSA ?? ¢ ） mWSaver⢠Fairchild Power Switch (FPSâ¢)
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FSB127H数据手册
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February 2012
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSB117H / FSB127H / FSB147H • Rev. 1.0.4
FSB117H / FSB127H / FSBH147H — mWSaver™ Fairchild Power Switch (FPS™)
FSB117H / FSB127H / FSB147H
mWSaver™ Fairchild Power Switch (FPS™)
Features
mWSaver™ Technology
Achieve Low No-Load Power Consumption Less
than 40mW at 230V
AC
(EMI Filter Loss Included)
Meets 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 5ms 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)
V
DD
Under-Voltage Lockout (UVLO)
V
DD
Over-Voltage Protection (OVP)
Constant Power Limit (Full AC Input Range)
Internal Auto Restart Circuit (OLP, V
DD
OVP, OTP)
Internal OTP Sensor with Hysteresis
Adjustable Peak Current Limit
Description
The FSB-series 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,
the FSB-series provides a basic platform that is well
suited for the cost-effective flyback converter design
with low standby power consumption.
Applications
General-purpose switched-mode power supplies and
flyback power converters, including:
Auxiliary Power Supply for PC, Server, LCD TV,
and Game Console
SMPS for VCR, SVR, STB, DVD, and DVCD
Player, Printer, Facsimile, and Scanner
General Adapter
LCD Monitor Power / Open-Frame SMPS
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