Multiplied SEPIC Constant Current Capacitor Charger (15Vin to 400V/420Vout @ 80mA) Reference Design PMP30104 (ACTIVE)

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Key Document

Description

A SEPIC converter is used to charge a load capacitor (up to 15000uF) up to 400V/420V (selectable). The input voltage range is 15V +/-10% and the constant output charging current 80mA. The multiplied SEPIC topology has several advantages compared to Boost + charge pump mainly thanks to reduce peak and RMS currents in the multiplier of the SEPIC.

Features
  • Huge voltage ratio possible by multiplied single-stage SEPIC (15Vin to 420Vout)
  • No spikes on switch-nodes compared to flyback solution
  • Good efficiency curve between 50Vout and 420Vout in the range of 80% to 87%
  • Two active loops:  CV and CC avoid overvoltage in case of load disconnection

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Parametrics
 PMP30104.1
(Output Voltage 1)
Vin (Min) (V)13.5
Vin (Max) (V)16.5
Vout (Nom) (V)420
Iout (Max) (A).08
Output Power (W)33.6
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologySepic- CCM

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TLC272  Dual Single Supply Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TPS40210  4.5~52V Wide Input Range Boost/SEPIC/Flyback DC-DC Controller  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TLC272 Download Download
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TPS40210 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 596 05 Oct 2016
Design files (6)
Title Type Size (KB) Date
ZIP 30 05 Oct 2016
ZIP 649 05 Oct 2016
PDF 375 05 Oct 2016
PDF 199 05 Oct 2016
PDF 118 05 Oct 2016
PDF 384 05 Oct 2016

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