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TIDA-00649 Reference Design

Texas Instruments

4-mA to 20-mA Loop Energy Harvester Reference Design

Description

The TIDA-00649 reference design demonstrates energy harvesting from 4-mA to 20-mA loop-powered systems. The design is simple to insert into existing installations where it scavenges energy from the loop and generates a regulated output voltage. Furthermore: the circuit provides an analog output representing the actual loop current value. The insertion loss can be as low as 400 mV and can also be increased up to 2.85 V to address higher output power levels. All these features provide an easy way for powering wireless adapters (WirelessHART® : Bluetooth® low energy (BLE): and so forth): indicators: displays: Human Machine Interfaces (HMIs): and others for a seamless upgrade of existing 4-mA to 20-mA loop-powered systems.

Features
  • Minimal insertion loss- 0.4 V to 2.85 V: selectable- Adaptable to voltage margin   in loop and required output powerAdjustable output voltage between 1.8V to 3.8V15mA peak-pulsed output currentLoop current sensingAnalog output 100 mV/mAActive 10-kHz low-pass filterReverse polarity protectionDesigned to withstand surges according to IEC 61000-4-5; ±1 kV; 40 ΩFlexible configuration for test and evaluation
Applications
Product Categories
  • Power management
Additional details