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reference designLM5180 | Demoboard PMP22760

Texas Instruments LM5180 | Demoboard PMP22760

Dual-output bias power supply reference design for inverter and motor drive applications

Overview

TopologyFlyback Converter
Input voltage12-15 V
Output 115 V / 0.1 A
IC revisionA

Description

This isolated primary-side regulated (PSR) flyback converter reference design provides dual +15-V outputs at 100 mA each. It was designed to provide bias power for a rotor coil excitation gate driver in motor/ inverter applications. The isolated output voltage is sampled from the primary-side flyback voltage eliminating the need for an optocoupler, voltage reference or third winding from the transformer for output voltage regulation. It offers a high level of integration and high efficiency in a compact form factor.

Features

  • Primary-side regulation eliminates optocoupler or transformer bias winding which results is a compact size
  • Excellent balanced load output voltage regulation (<1% from 10% - 100% loading)
  • Excellent unbalanced load output voltage regulation (<1% @ 50%, <2% @ 90% imbalance)
  • High efficiency (>90% from 50% - 100% loading)
  • LM5180 controller integrates FET and minimizes external components

Typical applications

  • Inverter and motor drive applications

More information

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744042100
SPECWE-TPC SMT Tiny Power Inductor, 10 µH, 1.3 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance10 µH
Rated Current1.3 A
Saturation Current1 A
Self Resonant Frequency45 MHz
MountSMT 
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