700V Integrated Power Switch for 19Watt offline flyback converters, 100kHz, Brown In/Out Protection, OLP Latch mode

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Overview

The FSB137HL is a next-generation, Green-Mode, ON Semiconductor Power Switch (FPS™) that incorporates ON Semiconductor’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.
ON Semiconductor 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.

  • 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 EMIAdvanced Protection
  • Internal Overload / Open-Loop Protection (OLP)
  • VDD Under-Voltage Lockout (UVLO)
  • Constant Power Limit (Full AC Input Range)
  • VDD Over-Voltage Protection (OVP)
  • Internal OTP Sensor with Hysteresis
  • Internal Latch Protection (OLP, VDD OVP, OTP)

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FSB137HLN

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Obsolete

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PDIP-8

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0

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3000

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4

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