FSB137HL集成電路（IC）的ACDC轉(zhuǎn)換器離線開(kāi)關(guān)規(guī)格書(shū)PDF中文資料

Features

mWSaver? Technology

? Achieves Low No-Load Power Consumption:

< 40 mW at 230 VAC (EMI Filter Loss Included)

? Meets 2013 ErP Standby Power Regulation

(< 0.5 W Consumption with 0.25 W Load) for

ATX Power and LCD TV Power

? Eliminates X-Cap Discharge Resistor Loss with

AX-CAP?

Technology

? Operates at Linearly Decreased Switching

Frequency at Light-Load Condition; in Advanced

Burst Mode Operation at No-Load Condition

? 700 V High-Voltage JFET Startup Circuit Eliminates

Startup Resistor Loss

Highly Integrated with Rich Features

? Internal Avalanche-Rugged 700 V SenseFET

? Built-in 5 ms 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 Latch Protection (OLP, VDD OVP, OTP)

? Internal OTP Sensor with Hysteresis

Description

The FSB137HL is a next-generation, Green-Mode,

Fairchild Power Switch (FPS?) that incorporates

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 700 V SenseFET in a single

package, allowing auxiliary power designs with higher

standby efficiency, reduced size, improved reliability,

and lower system cost than prior 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 meeting IEC61010-1

safety requirements. mWSaver? Green Mode gradually

decreases switching frequency as load decreases to

minimize switching losses.

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 the entire

universal line voltage range.

Requiring a minimum number of external components,

FSB137HL 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

(SMPS) 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