Global Sources
EE Times-Asia
Stay in touch with EE Times Asia
EE Times-Asia > Amplifiers/Converters

Teridian rolls out industrial electronic trip unit

Posted: 20 Oct 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Teridian? 71M6403? electronic trip unit? circuit protection?

Teridian's 71M6403 electronic trip unit

Teridian Semiconductor Corp. has introduced the 71M6403 electronic trip unit, said to be the industry's first merchant SoC for industrial motor circuit protection and circuit breaker applications.

The 71M6403 promises reliable start-up in motor circuit protection applications, preventing damage to the motor and increasing its useful life. The device can also be used in air, molded case and insulated circuit breakers in factories, utilities and commercial buildings.

This programmable device can be tuned according to voltage, current, rate of voltage increase and rate of current increase. It is also designed to trip instantaneously on threshold events within less than 7ms from power on, or can be set to trip on delay, based on user-determined current and voltage profiles.

Single converter tech
Using Teridian's patented single converter technology, 71M6403 incorporates a 22bit delta-sigma ADC, seven current sensor inputs, digital temperature compensation, precision voltage reference, 32bit programmable computation engine, timers, real-time clock, two UARTs and a single cycle execution 8bit MCU.

Armed with an internal digital di/dt integrator, this device supports either current transformer (CT) or Rogowski-Coils for any or all input channels and provides instantaneous and delayed over current, earth-leakage, ground-fault and arc fault protection functions. Furthermore, the device may be configured to support any number of conventional or custom protection algorithms that fit specific load configurations in the field. The 71M6403 also includes a 5V LCD charge pump as well as 3V LCD support with up to 168 pixels display and up to 22 DIO pins.

Teridian's 71M6403 is currently available in production volumes, and pricing is available upon request. Data sheets and evaluation kits for 71M6403 are also available.

Article Comments - Teridian rolls out industrial electr...
*? You can enter [0] more charecters.
*Verify code:


Visit Asia Webinars to learn about the latest in technology and get practical design tips.

Back to Top