Smart Solenoid Driver with Predictive Maintenance Reference Design
TIDA-01250
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Key Document

Description

This reference design is a solenoid driver that implements additional monitoring control as well as diagnostic features. These features enable for example: lose spring detection, valve aging recognition and dynamic control of solenoid current. This predictive maintenance feature-set helps to decrease or even eliminate factory downtime. Moreover, the control of the solenoid current supports energy saving and increased valve lifetime. The integrated IO-Link interface provides the possibility of communication between Programmable Logic Controller (PLC) and actuator to leverage the predictive maintenance feature-set. The switching of the solenoid is realized using the PWM output of the microcontroller (MCU) to drive the current of a FET, which then supplies the solenoid switching current. The current signature is sampled with the on-chip 12-bit ADC and stored in the on-chip FRAM. This reference design implements a moving average calculation and a calculation of extreme values of the current signature curve.

Features
  • Solenoid driver:  based on MSP430™ PWM output; configurable PWM output for different drive currents
  • Current signature captured by integrated 12-bit ADC
    • Current signature can be stored in MSP430 FRAM
    • Single processing functions implemented in firmware:
    • Moving average
    • Detection of local extreme values
  • Configuration through UART or IO-link

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430FR5969  MSP430FR5969 16 MHz Ultra-Low-Power Microcontroller featuring 64 KB FRAM, 2 KB SRAM, 40 IO  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
TIOL111  IO-Link device transceiver with integrated surge protection  Interface  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
MSP430FR5969 Download Download
TIOL111 Download Download

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Technical Documents

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More literature (1)
Title Date Type
Liberate your solenoid or relay from the bonds of supply voltage 17 Jul 2017
Application notes (1)
Title Type Size (KB) Date
PDF 232 28 Oct 2013
User guides (1)
Title Type Size (KB) Date
PDF 1515 17 Jul 2017
White papers (1)
Title Type Size (KB) Date
PDF 3112 12 Jun 2015
Design files (6)
Title Type Size (KB) Date
ZIP 613 17 Jul 2017
ZIP 1192 17 Jul 2017
PDF 727 17 Jul 2017
PDF 145 17 Jul 2017
PDF 50 17 Jul 2017
PDF 607 17 Jul 2017
Related Tools & Software

Reference Designs  ( 2 )

Software (1)



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