器件名称: SA2005MSA
功能描述: Pin Selectable Three Phase Power / Energy Metering IC for Stepper Motor / Impulse Counter Applications with Anti Tamper
文件大小: 361.17KB 共12页
简 介:Pin Selectable Three Phase Power / Energy Metering IC for Stepper Motor / Impulse Counter Applications with Anti Tamper Features SA2005M
FEATURES + Direct drive for + + +
electro-mechanical counters or stepper motors Selectable dividing ratios for different meter rated conditions Per phase energy direction and voltage fail indication Precision oscillator on chip
sames
+ + + + +
Meets the IEC 521/1036 Specification requirements for Class 1 AC Watt hour meters Operates over a wide temperature range Easily adaptable to different signal levels Precision voltage reference on chip Protected against ESD
DESCRIPTION
The SAMES SA2005M provides a single chip active energy metering solution for three phase mechanical counter-based meter designs. Very few external components are required and it has direct drive capability for electro-mechanical counters. The SAMES SA2005M is a CMOS mixed signal integrated circuit that performs three phase power/energy calculations over a range of 1000:1, to an overall accuracy of better than Class 1. The integrated circuit includes all the required functions for 3phase power and energy measurement such as oversampling A/D converters for the voltage and current sense inputs, power calculation and energy integration. Internal offsets are eliminated through the use of cancellation procedures.
VDD VSS
The SA2005M drives a calibration LED directly. voltage fail and voltage sequence faults as well direction indication are available as LED outputs. divider……
