PMP7770, 120V AC input and 24.5 V LED Driver Reference Design

Reference Design using part LM3445MM by Texas Instruments

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Manufacturer

Texas Instruments
  • Application Category
    Power Supplies
  • Product Type
    AC to DC Single Output Power Supplies

Associated Documents

For End Products

  • LED Lighting

Description

  • It is an offline AC-DC LED driver. It has TRIAC dimming capability. It is basically a low side buck which has valley filled PFC. It takes an input voltage of 120V AC. This circuit uses LM3445 which is an adaptive constant off-time AC/DC buck (step-down) constant current controller designed to be compatible with Traic dimmers

Key Features

  • Conversion Type
    AC to DC
  • Input Voltage
    120 (AC) V
  • Output Voltage
    24.5 V
  • Output Current
    1 A
  • Output Power
    24.5 W
  • Topology
    Buck- PFC

Featured Parts (5)

Featured Parts
Part Number Manufacturer Type Description
NUD4700SNT1G onsemi LED Protection Devices LED Shunt Protection Device Buy
LM3445MMX/NOPB Texas Instruments LED Drivers LED Driver 2850uA Supply Current 10-Pin VSSOP T/R Buy
LM3445MM/NOPB Texas Instruments LED Drivers LED Driver 2850uA Supply Current 10-Pin VSSOP T/R Buy
LM3445MMX/NOPB Texas Instruments LED Drivers LED Driver 2850uA Supply Current 10-Pin VSSOP T/R Buy
LM3445MM/NOPB Texas Instruments LED Drivers LED Driver 2850uA Supply Current 10-Pin VSSOP T/R Buy

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