71m6403 Teridian Semiconductor Corporation, 71m6403 Datasheet

71m6403

Manufacturer Part Number

71m6403

Description

Electronic Trip Unit

Manufacturer

Teridian Semiconductor Corporation

Datasheet

1.71M6403.pdf (75 pages)

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Part Number:

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GENERAL DESCRIPTION

The Teridian 71M6403 is an electronic trip unit (ETU) system-on-chip

device for air circuit breakers (ACB), molded case circuit breakers

(MCCB) and other types of intelligent switchgear. Utilizing Teridian’s

patented Single Converter Technology, the 71M6403 incorporates a

22-bit delta-sigma ADC, 7 current sensor inputs, digital temperature

compensation, precision voltage reference, 32-bit programmable

computation engine, timers, Real Time Clock (RTC), two UARTs and a

single cycle execution 8-bit MCU.

Armed with an internal digital di/dt integrator, this programmable device

supports either current transformer (CT) or Rogowski-Coils for any or all

input channels and provides instantaneous and delayed over current,

earth-leakage,

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. Easy

conversion to ROM offers unprecedented cost structure for high volume

MCCB applications.

A complete suite of in-circuit emulator (ICE) and development tools, a

powerful real-time signal monitoring tool, programming libraries and

reference designs enable rapid development of advanced switchgear.

Page: 1 of 75

Sensors

Current

DC in

COMPARATOR

SERIAL PORTS

INEUTRAL

VOLTAGE REF

INEUTRAL

SENSE

CONVERTER

OPTO

DRIVE

VREF

VBIAS

Detection

Power

ground-fault

Fault

71M6403

Teridian

COMPUTE

SENSOR

ENGINE

TIMERS

FLASH/

V3.3A V3.3D

TEMP

RAM

ROM

MPU

ICE

and

REGULATOR

LCD DRIVER

SEG 24..27

GNDA GNDD

DIO, PULSE

SEG 32..41

DIO 12..21

SEG0..23

DIO 4..11

LCD 5V

COM0..3

CLOCK

BOOST

DIO 4,5

CK38

arc

V2.5

fault

2006 TERIDIAN Semiconductor Corporation

Accumulator Indicator

4040 Counter

protection

19.6608MHz

External EEPROM

88.88.8888

Trip Indicator

3/5V LCD

functions.

Electronic Trip Unit

22-bit Sigma-delta converter

Six main sensor inputs

One auxiliary input

Supports CT or Rogowski Coils

Internal di/dt integrators

< 5 msec. startup time

Better than 10ppm/°C accuracy

Instantaneous and delay trip

Peak & RMS current measurement

Calculated or measured GND

Power measurement functions

Internal temperature sensor

Digital temperature compensation

Independent 32-bit compute engine

Two UART ports

Two timers

Hardware watchdog

Internal power fault detector

Real Time Clock (RTC)

Battery backup (RTC, RAM)

8-bit MPU (80515) - 1 clock cycle

per instruction (5 Mhz max.)

LCD driver ( ≤168 pixels)

5V LCD charge pump

Up to 22 general purpose I/O pins

High speed serial interface (SSI)

64KB Flash, 7KB RAM

Flash memory security

30mW @ 3.3V

100-lead LQFP package

current

option

C EEPROM interface

FEATURES

71M6403

SEPTEMBER 2006

REV 1.0

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