Single-Phase, Dual-Outlet Power and Energy Measurement IC

The Teridian™ 78M6612 is a highly integrated, single-phase, power and energy measurement and monitoring system-on-chip (SoC) that includes a 32-bit compute engine (CE), an MPU core, RTC, and flash. Our Single Converter Technology® with a 22-bit delta-sigma ADC, four analog inputs, digital temperature compensation, and precision voltage reference supports a wide range of single-phase, dual-outlet power measurement applications with very few external components.

With measurement technology leveraged from Maxim’s flagship utility metering ICs, the device offers features including 32KB of flash program memory, 2KB shared RAM, three low-power modes with internal timer or external event wake-up, two UARTs, I²C/MICROWIRE® EEPROM I/F, and an in-system programmable flash.

A complete array of ICE and development tools, programming libraries and reference designs enable rapid development and certification of power and energy measurement solutions that meet the most demanding worldwide electricity metering standards.Applications

* Communication Power Supplies * Computer Power Supplies * Consumer White Goods * Home and Commercial Automation

* Measures Each Outlet of a Duplex Receptacle with a Single IC

* Provides Complete Energy Measurement and Communication Protocol Capability in a Single IC

* Intelligent Switch Control Capability

* < 0.5% Wh Accuracy Over 2000:1 Current Range and Over Temperature

* Exceeds IEC 62053/ANSIC12.20 Standards

* Voltage Reference < 40ppm/°C

* Four Sensor Inputs — VDD Referenced

* Low Jitter Wh and VARh Pulse Test Outputs (10kHz max)

* Pulse Count for Pulse Outputs

* Line Frequency Count for RTC

* Digital Temperature Compensation

* Sag Detection for Phase A and B

* Independent 32-Bit Compute Engine

* 46Hz–64Hz Line Frequency Range with Same Calibration

* Phase Compensation (±7°)

* Battery Backup for RTC and Battery Monitor

* Three Battery Modes with Wake-Up Timer:

* Brownout Mode (48µA)

* LCD Mode (5.7µA)

* Sleep Mode (2.9µA)

* Energy Display on Main Power Failure

* Wake-Up Timer

* 22-Bit Delta-Sigma ADC

* 8-Bit MPU (80515), 1 Clock Cycle per Instruction with Integrated ICE for MPU Debug

* RTC with Temperature Compensation

* Auto-Calibration

* Hardware watchdog Timer, Power-Fail Monitor

* LCD Driver (Up to 152 Pixels)

* Up to 18 General-Purpose I/O Pins

* 32kHz Time Base

* 32KB Flash with Security

* 2KB MPU XRAM

* Two UARTs

* Digital I/O Pins Compatible with 5V Inputs

* 64-Pin LQFP or 68-Pin QFN Package

* RoHS-Compliant (6/6) Lead(Pb)-Free Packages

* Complete Application Firmware Available