CS5461A 24-pin SSOP 7. 4 m m 7.9 mm IC dimensions (pin-to-pin nominal) CS5461A Features • • • • • • • • • • • • • • • • Energy data linearity: +0.1% of reading over 1000:1 dynamic range On-chip Functions: Instantaneous Voltage, Current and Power, IRMS and VRMS, Average Real and Apparent Power, Energy-to-pulse Conversion Meets accuracy spec for IEC, ANSI, JIS Low power consumption Adjustable input range on current channel GND-referenced signals with single supply On-chip temperature sensor On-chip 2.5 V reference (typ 25 ppm/°C) AC/DC system calibrations Phase compensation Simple 3-wire digital serial interface Power supply monitor Programmable energy-to-pulse output function Configurable pulse outputs for stepper motor or mechanical counter Power supply configurations: VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to +5 V Package: 24-pin SSOP Next-Generation IC is Ideal for Electronic Power-Measurement Applications Delivers Accurate Power-Usage Measurements The CS5461A enables digital power-meter The CS5461A is easy to design in as manufacturers to provide highly accurate, a pin-compatible upgrade to the popular cost-effective solutions for measuring Cirrus Logic CS5460A. It retains all the power usage. This new IC is an integrated functionality of its predecessor, while also power-measurement device that combines providing an on-chip temperature sensor two Delta-Sigma A/D converters, high- which can be used to lower the speed power calculation functions, and a temperature coefficient, allowing for serial interface on a single chip. Additional higher accuracy over temperature. For features include AC and DC calibration and communication with a microcontroller, phase compensation. Designed for the IC features a bi-directional serial residential single-phase or industrial three- interface, which is initialized and fully phase power-meter applications, the IC functional upon reset. The CS5461A can accurately measures instantaneous current interface to a low-cost shunt resistor or and voltage while calculating instantaneous transformer for current measurement and power, real power, apparent power, IRMS to a resistive divider or potential and VRMS. transformer for voltage measurement. The CS5461A delivers accurate power usage measurements and is ideal for electronic power-meter applications. www.cirrus.com C i r r u s L o g i c , I n c . · 2 9 0 1 V i a F o r t u n a · A u s t i n T X 7 8 74 6 U S A · T 5 1 2 - 8 5 1 - 4 0 0 0 · T 8 0 0 - 8 8 8 - 5 0 1 6 · F 5 1 2 - 8 5 1 - 4 9 7 7 Product Bulletin 0152-0505-PB-LP © 2005 Cirrus Logic, Inc. All rights reserved. Product information is subject to change without notice. Cirrus Logic is a trademark of Cirrus Logic, Inc. Other brand and product names may be trademarks or service marks of their respective owners.