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onsemi NCP1118x mWSaver® Integrated Power Switchers

onsemi NCP1118x mWSaver® Integrated Power Switchers integrate a peak current mode PWM controller, implementing mWSaver technology and a highly robust 800V SJ MOSFET. This integrated design on the NCP1118x provides a significantly enhanced performance in flyback converters. mWSaver technology decreases the controller's switching frequency and operating current at light-load conditions, which helps avoid acoustic-noise problems and even meets international power conservation standards, such as Energy Star®.

Additionally, the onsemi NCP1118x includes a high-voltage startup circuit, frequency-hopping function, slope compensation, constant output power limit, and highly reliable and various protections, which allows easy design, fewer BOM counts, smaller PCB size, and designing cost-effective off-line power supply. The protections feature stability of a feedback pin open-loop, current-sense resistor short, brown-out, and line over-voltage using a line voltage sensing pin, which operate with the auto-recovery operation.

Features

  • Integrated 800V super junction MOSFET
  • Built-in high voltage start-up, soft-start, and slope compensation
  • mWSaver technology provides best-in-class standby power
  • 65/100/130kHz Switching frequency option
  • Proprietary asynchronous frequency hopping technique for low EMI
  • Programmable constant output power limit for an entire input voltage range
  • Precise brown-out protection and Line Over-voltage Protection (LOVP) with hysteresis
  • Current Sense Short Protection (CSSP) and Abnormal Over-Current Protection (AOCP)
  • Thermal Shutdown (TSD) with hysteresis
  • All protections operated by auto-recovery including VCC Under-voltage Lockout (UVLO), feedback Open-Loop Protection (OLP), VCC Over-Voltage Protection (OVP)
  • Pb-free, halogen-free/BFR-free and are RoHS compliant

Applications

  • Industrial auxiliary power supplies, E-metering SMPS
  • Power supplies for white good applications and consumer electronics

Evaluation Board

onsemi NCP11187A65P45WGEVB Evaluation Board

Designed for the NCP1118x highly enhanced switcher integrating a peak current mode PWM controller.

Learn Moreabout onsemi NCP11187A65P45WGEVB Evaluation Board View Productsrelated to onsemi NCP11187A65P45WGEVB Evaluation Board

Typical Application

Application Circuit Diagram - onsemi NCP1118x mWSaver® Integrated Power Switchers

Block Diagram

Block Diagram - onsemi NCP1118x mWSaver® Integrated Power Switchers
Published: 2021-03-23 | Updated: 2022-03-11