Electronic Trip Unit

Nov. 9, 2006
The 71M6403 Electronic Trip Unit is a system-on-chip (SOC) for industrial motor circuit protection and circuit-breaker applications.

The 71M6403 is a system-on-chip (SOC) for industrial motor circuit protection and circuit-breaker applications. It has a 22-bit delta-sigma Adc, seven current-sensor inputs, digital temperature compensation, a precision voltage reference, 32-bit programmable computation engine, timers, a real-time clock (RTC), two UARTs, and a single-cycle-execution 8-bit MCU.

The digital di/dt integrator supports either current transformer (CT) or Rogowski-coils for any input channels and provides instantaneous and delayed overcurrent, earth-leakage, ground-fault, and arc-fault protection. The 71M6403 also includes a 5-V LCD charge pump as well as 3-V LCD support with up to 168-pixel display and 22 DIO pins.

Teridian Semiconductor, 6440 Oak Canyon, Irvine, CA 92618, (714) 508-8800, teridian.com

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