Innovations for safe system operation

Voltage detectors enable enhanced safe recovery in extra applications. STMicroelectronics STM1831 voltage detector has independent connections for the sense input and its own supply voltage.

06/19/2011


STMicroelectronics has developed a new generation of innovative voltage detectors with extra features that enhance system safety and reliability for a wide variety of applications, the company said. The STM1831 voltage detector will be used in equipment such as autonomous systems and safety-related devices, enabling the electronics to recover safely if a voltage drop occurs in the power supply. Unlike other voltage monitors, the device has independent connections for the sense input and its own supply voltage. This allows the voltage detector to operate reliably even if the monitored voltage falls to 0 V.

A large selection of factory-trimmed voltage thresholds is available, from 1.6V to 5.7 V in 100 mV increments. This broad range allows designers to specify the exact voltage threshold they need to meet specific design requirements.

In addition, engineers can program the time delay between when the monitored voltage returns to normal and when the detector deactivates its alarm output. Only one external capacitor is needed to program the delay, which provides flexibility and simplifies design. The STM1831 also draws as little as 0.8uA typical supply current, allowing use in low-power applications such as battery-operated equipment.

Major features of the STM1831:

· ±2% voltage threshold accuracy

· Operating voltage 1.6V to 6.0V

· Open-drain output

· Power supply transient immunity

· Operating temperature range: -40 °C to +85 °C

STMicroelectronics is a global semiconductor supplier serving customers across the spectrum of electronics applications and a provider in monitoring and protection IC.

www.st.com STMicroelectronics



No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Motor specification guidelines; Understanding multivariable control; Improving a safety instrumented system; 2017 Engineers' Choice Award Winners
Selecting the best controller from several viewpoints; System integrator advice for the IIoT; TSN and real-time Ethernet; Questions to ask when selecting a VFD; Action items for an aging PLC/DCS
Robot advances in connectivity, collaboration, and programming; Advanced process control; Industrial wireless developments; Multiplatform system integration
Motion control advances and solutions can help with machine control, automated control on assembly lines, integration of robotics and automation, and machine safety.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Future of oil and gas projects; Reservoir models; The importance of SCADA to oil and gas
Big Data and bigger solutions; Tablet technologies; SCADA developments
SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Jose S. Vasquez, Jr.
Fire & Life Safety Engineer; Technip USA Inc.
click me