HV AC-DC buck converter reference design with ultra wide input voltage range PMP21007 (ACTIVE)

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Key Document

Description

This is a reference design of an ultra-wide input range (20.4 Vac to 276 Vac) AC-DC Buck converter. Using the UCC28881 controller, we only need minimum number of discrete components as main switch and high voltage startup circuits (with low quiescent current needed) are already integrated in the controller. To allow sufficient supply current to the UCC28881 controller, a depletion MOSFET circuit is added as a low power dissipation current source. This design is able to provide 12 V/50 mA output.

Features
  • Ultra-wide input voltage range from 20.4 Vac to 276 Vac
  • Low cost PCB layout design using a single-layer-PCB
  • Less than 15 degree Celsius temperature rise on all circuit components
  • FET integrated controller provides minimum discrete component need

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Parametrics
 PMP21007.1
(Output Voltage 1)
Vin (Min) (V)20.4
Vin (Max) (V)276
Vout (Nom) (V)12
Iout (Max) (A).05
Output Power (W).6
Isolated/Non-IsolatedNon-Isolated
Input TypeAC
TopologyBuck- Non Sync

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28881  700-V Lowest Quiescent Current Off-Line Switcher  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
UCC28881 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1793 19 Dec 2018
Design files (6)
Title Type Size (KB) Date
ZIP 345 24 Apr 2019
PDF 80 24 Apr 2019
ZIP 1342 19 Dec 2018
PDF 270 19 Dec 2018
PDF 53 19 Dec 2018
PDF 24 19 Dec 2018

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