Microchip HV9120NG-G

升压/降压反激10V ~ 450V

Overview

Applications ► Off-line high frequency power supplies ► Universal input power supplies ► High density power supplies ► Very high efficiency power supplies ► Extra wide load range power supplies General Description

A unique input circuit allows the HV9120NG to self-start directly from a high voltage input, and subsequently take the power to operate from one of the outputs of the converter it is controlling, allowing very efficient operation while maintaining input-to-output galvanic isolation limited in voltage only by the insulation system of the associated magnetic assembly.  A ±2% internal bandgap reference, internal operational amplifier, very high speed comparator, and output buffer allow production of rugged, high performance, high efficiency power supplies of 50W or more, which can still be over 80% efficient at outputs of 1.0W or less. The wide dynamic range of the controller system allows designs with extremely wide line and load variations with much less difficulty and much higher efficiency than usual. The exceptionally wide input voltage range also allows better usage of energy stored in input dropout capacitors than with other PWM ICs. Remote on/off controls allow either latching or nonlatching remote shutdown. During shutdown, the power required is under 6.0mW.

Features

Transistor Driver Outputs
Enable, Frequency Control, Reset
PULSE WIDTH MODULATION
Max Duty Cycle: 49.6 %
Frequency: 3MHz

Applications

There are a lot of Microchip Technology HV9120NG-G DC to DC converter applications.

• Combined machine tools

• Fire elevators

• Geothermal power

• Plate bending machines

• Pipe bending machines

• Wide-range voltage regulation circuits

• Special machining machine tools

• Electric heating, lighting

• Bending machines

• Boring machines