TIDA-00766
Differential Pulse Train Output (PTO) Programmable Logic Controller (PLC) Module Reference Design
TIDA-00766
Overview
The differential pulse-train output (PTO) reference design illustrates the design of a differential high-speed digital output module using a RS-485 driver powered from the PLC backplane using isolated fly-buck power converter. The reference design is mainly used in positioning and motion control systems to allow simple distant high-speed motor control in noisy environments.
Features
- 4 high-speed differential digital output channels
- 1-MHz pulse frequency
- 25-mA maximum load current per channel for 100-Ω load
- 750-mW total power consumption from backplane isolated power stage (150 mA)
- Parallel control for simple MCU interface
- Beaglebone Black cape form factor for easy evaluation using TIDEP0027
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.
TIDUC30A.PDF (1079 K)
Reference design overview and verified performance test data
TIDRN54.PDF (839 K)
Detailed schematic diagram for design layout and components
TIDRN55.PDF (65 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRN56.PDF (331 K)
Detailed overview of design layout for component placement
TIDRN58.ZIP (1468 K)
Files used for 3D models or 2D drawings of IC components
TIDCCI5.ZIP (274 K)
Design file that contains information on physical board layer of design PCB
TIDRN57.PDF (1508 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
RS-485 & RS-422 transceivers
SN65LBC174A — Quadruple RS-485 Differential Line Drivers
Data sheet: PDF | HTMLStart development
Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Differential Pulse Train Output (PTO) Programmable Logic Controller (PLC) Module (Rev. A) | Oct. 13, 2016 |
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