PMP10645

Reference Design - MOSFET Driver for Half Bridge with a Fly-Buck to Provide Isolated Power

PMP10645

Design files

Overview

The PMP10645 reference design is designed for SM74101 mosfet driver with a Fly-Buck power supply to drive half bridge. The SM74101 is a tiny 7A mosfet driver which can support 3A source current and 7A sink current. The LM5017 isolated output Fly-Buck power supply has four outputs to supply the gate driver bias in motor drive or inverter applications. The user can also use jumpers to set Unipolar or Bipolar PWM gate driver.

Features
  • 3A source current and 7A sink current
  • Can use jumpers to set Unipolar or Bipolar PWM gate driver
  • Small delay time, rise & fall time
  • Provides the signals and power supplies to drive half bridge
  • Fly-Buck Constant On-Time, no loop compensation required
  • Input can be a loosely regulated  24V±20%
  • This circuit design is tested and includes test results
Output voltage options PMP10645.1 PMP10645.2
Vin (Min) (V) 19 19
Vin (Max) (V) 30 30
Vout (Nom) (V) 4.5 8
Iout (Max) (A) .1 .1
Output Power (W) .45 .8
Isolated/Non-Isolated Isolated Isolated
Input Type DC DC
Topology FlyBuck FlyBuck
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUA20.PDF (826 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDRF22.PDF (189 K)

Detailed schematic diagram for design layout and components

TIDRF23.PDF (125 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRF24.ZIP (943 K)

Files used for 3D models or 2D drawings of IC components

TIDCAE2.ZIP (3142 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

LM50177.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator

Data sheet: PDF | HTML
Low-side drivers

SM741013-A/7-A single channel gate driver with input ground for split supply operation

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP10645 Test Results Jun. 05, 2015

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