HV9120NG-G Microchip

HV9120/HV9123 High-Voltage, Current-Mode, PWM Controller Features Description 10 to 450V input voltage range HV9120 and HV9123 are Switch-Mode Power Supply <1.3 mA supply current (SMPS) controllers suitable for the control of a variety >1 MHz clock of converter topologies, including flyback and forward converter. 49% maximum duty version Using an internal, high-voltage regulator, HV9120 and Applications HV9123 can derive a bias supply for starting-up and powering a converter from a variety of power sources, Off-line high frequency power supplies such as a 12V battery or the rectified AC (230 VAC) Universal input power supplies line. High density power supplies Very high efficiency power supplies HV9120/HV9123 controllers include all essentials for a Extra wide load range power supplies power-converter design, such as a bandgap reference, an error amplifier, a ramp generator, a high-speed PWM comparator, and a gate driver. A shutdown latch provides on/off control. Device power consumption is less than 6 mW when shutdown. HV9120 offers 50% maximum duty and HV9123 offers nearly 100% duty. Package Types 1 16 1 16 4 16-lead SOIC 16-lead PDIP See Table 3-1 for pin information 2016 Microchip Technology Inc. DS20005519A-page 1HV9120/HV9123 Block Diagram HV9120 DS20005519A-page 2 2016 Microchip Technology Inc.