TIDA-010070

Protected DC-bus input power and control power supply reference design for low-voltage servo drives

TIDA-010070

Design files

Overview

This reference design uses an ORing controller, the LM5050-1 to provide protection against reverse polarity and reverse current. In conjunction, the LM5069 hot swap controller is used for overcurrent, over voltage, under voltage protection, and inrush current limitation. The design also features power rails for the control electronics including the gate drive, encoder and MCU circuitry.

Features
  • Protect the DC bus voltage against over voltage, reverse polarity, overcurrent and inrush current.
  • Prevent reverse current flow back into the common DC bus supply during motor braking.
  • Ability to withstand up to 100-V transients on the DC link (48 V nominal).
  • Option to power the MCU using the USB for configuration in absence of DC bus input.
  • Protect the encoder supplies (both from the DC bus and external back up battery) against short-circuit fault.

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.

TIDUES3.PDF (3452 K)

Reference design overview and verified performance test data

TIDM357.PDF (263 K)

Detailed schematic diagram for design layout and components

TIDM358.PDF (102 K)

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

TIDM359.PDF (209 K)

Detailed overview of design layout for component placement

TIDM361.ZIP (2953 K)

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

TIDCFP7.ZIP (321 K)

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

TIDM360.PDF (1163 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

LM51646-V to 100-V input, 1-A synchronous buck DC-DC converter with ultra-low IQ

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TPS560430SIMPLE SWITCHER® 36-V, 600-mA Buck Regulator With High-Efficiency Sleep Mode

Data sheet document-pdfAcrobat PDF open-in-new HTML
Ideal diode/ORing controllers

LM5050-15-V to 75-V, 400-uA IQ ideal diode controller

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

LP38691500-mA, 10-V, low-dropout voltage regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML
Load switches

TPS229195.5-V, 1.5-A, 90-mΩ load switch with adj. output discharge

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD19536KTT100-V, N channel NexFET™ power MOSFET, single D2PAK, 2.4 mOhm

Data sheet document-pdfAcrobat PDF open-in-new HTML
P-channel MOSFETs

CSD25501F3-20-V, P channel NexFET™ power MOSFET, single LGA 0.6 mm x 0.7 mm, 76 mOhm, gate ESD protection

Data sheet document-pdfAcrobat PDF
Power muxes

TPS21212.7-V to 22-V, 56-mΩ, 4.5-A, power mux with seamless switchover

Data sheet document-pdfAcrobat PDF
Supervisor & reset ICs

TPS3703-Q1Automotive high-accuracy window supervisor with reset time delay

Data sheet document-pdfAcrobat PDF open-in-new HTML
eFuses & hot swap controllers

LM50699-V to 80-V hot swap controller with power limiting

Data sheet document-pdfAcrobat PDF
eFuses & hot swap controllers

TPS26624.5-V to 60-V, 478mΩ, 0.025-0.88A eFuse with integrated input and output reverse polarity protection

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Design guide Protected DC Bus Input Power & Control Power Supply Ref. Des. for Low-Voltage Se Dec. 04, 2019

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