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LM5185EVM-SIO

LM5185-Q1 single isolated output evaluation module

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LM5185EVM-SIO

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Overview

The LM5185EVM-SIO evaluation module (EVM) demonstrates the features and performance of the LM5185-Q1, Primary-Side Regulated (PSR) flyback controller. It samples the voltage of the transformer's primary winding to achieve tight output regulation without using the opto-coupler or tertiary bias winding. The input voltage range is 20 V to 60 V, and the output is 16.4 V with a rated load of 1 A.

Features
  • 20 V to 60 V input voltage range
  • 16.4 V output voltage
  • 1 A rated load current
  • Maximum switching frequency 350 kHz
  • Peak efficiency > 90%
AC/DC & DC/DC controllers (external FET)
LM25185 — 42-VIN primary side regulation flyback controller with low IQ and low EMI LM25185-Q1 — Automotive, 42-VIN primary side regulation flyback controller with low IQ and low EMI LM5185 — 100-VIN primary side regulation flyback controller with low IQ and low EMI LM5185-Q1 — Automotive, 100-VIN primary-side regulation flyback controller with low IQ and low EMI
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Evaluation board

LM5185EVM-SIO — LM5185-Q1 single isolated output evaluation module

Supported products & hardware
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LM5185EVM-SIO — LM5185-Q1 single isolated output evaluation module

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Calculation tool

LM5185-DESIGN-CALC — LM5185 PSR Flyback Controller Quickstart Design Calculator

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC controllers (external FET)
LM5185 — 100-VIN primary side regulation flyback controller with low IQ and low EMI LM5185-Q1 — Automotive, 100-VIN primary-side regulation flyback controller with low IQ and low EMI
Hardware development
Evaluation board
LM5185EVM-SIO — LM5185-Q1 single isolated output evaluation module
Download options

LM5185-DESIGN-CALC — LM5185 PSR Flyback Controller Quickstart Design Calculator

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Version: REV-3.3
Release date: Nov 18, 2024
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LM5185-DESIGN-CALC.xlsx  — 4536 K

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Products
AC/DC & DC/DC controllers (external FET)
LM5185 — 100-VIN primary side regulation flyback controller with low IQ and low EMI LM5185-Q1 — Automotive, 100-VIN primary-side regulation flyback controller with low IQ and low EMI
Hardware development
Evaluation board
LM5185EVM-SIO — LM5185-Q1 single isolated output evaluation module

Release Information

The LM5185-Q1 PSR Flyback Quickstart Design Calculator

What's new

  • The calculation of Fsw under max Vin is updated to be consistent with the calculations under nominal and min Vin conditions.
TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
* EVM User's guide LM5185-Q1, LM5185EVM-SIO Single-Output Evaluation Module User's Guide PDF | HTML Jul 2, 2023
Technical article Mitigating CMTI on a PSR flyback for SiC-based traction inverter designs PDF | HTML Jan 5, 2024
Certificate LM5185EVM-SIO EU Declaration of Conformity (DoC) PDF | HTML Jul 24, 2023

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