Rapid shutdown

Products and reference designs

Rapid shutdown

Block diagram

Overview

Integrating solar rapid shutdown modules into solar systems reduces shock hazards when accessing panels is required. Our integrated circuits and reference designs help you achieve compliance with NEC 2017 section 690.12 and accelerate the development of solar rapid shutdown modules, while improving response time by providing real-time communication and monitoring.

Design requirements

Solar rapid shutdown modules often require:

  • Total system shutdown within 10 seconds of initiation.
  • Accurate monitoring of conductor voltages.
  • Real-time communication and monitoring.
  • Long system lifespan and reliability.

Extend the capabilities of this application

Block diagram

Find products and reference designs for your system.

Rapid shutdown

PV+ PV+ String+ String+ PV- PV- String- String- Wireless Interface Wireless Interface Zigbee Zigbee System Voltages System Voltages Non-Isolated DC/DC Power Supply Non-Isolated DC/DC Power Supply DC/DC DC/DC LDO LDO Relay Control Power Stage Relay Control Power Stage Gate Driver Gate Driver Analog Front-End Analog Front-End Reference Reference ADC ADC Digital Processing Digital Processing MCU MCU Self-Diagnostics/ Monitoring Self-Diagnostics/Monitoring Temperature Sensor TemperatureSensor DC/DC Logic DC/DC Logic Gates and Buffers Gates and Buffers Wired Interface Wired Interface PLC PLC RS-485 RS-485 Voltage Sense Voltage Sense AMP AMP

Technical documentation

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Type Title Date
White paper Smart power opens door to more efficient electrical use 21 Mar 2016
Application note The RS-485 Design Guide (Rev. D) PDF | HTML 10 May 2022
Technical article Taking the lead on solar-panel safety with available hardware and software tools s PDF | HTML 03 Aug 2023

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