71M6515H-IGT/F Maxim Integrated Products, 71M6515H-IGT/F Datasheet

71M6515H-IGT/F

Manufacturer Part Number

71M6515H-IGT/F

Description

IC ENERGY METER AFE 3PH 64-LQFP

Manufacturer

Maxim Integrated Products

Datasheet

1.71M6515H-IGTF.pdf (60 pages)

Specifications of 71M6515H-IGT/F

Mounting Style

SMD/SMT

Package / Case

LQFP-64

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

71M6515H-IGT/F

Manufacturer:

Maxim Integrated

Quantity:

10 000

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GENERAL DESCRIPTION

The 71M6515H is a high-accuracy analog front-end

(AFE) IC that provides measurements for 3-quadrant

3-phase metering. The combination of a 21-bit

sigma-delta A/D converter with a six-input analog

front-end, a thermally compensated high-precision

reference, and a compute engine results in high

accuracy and wide dynamic range. Our Single

Converter Technology® reduces cross talk and cost.

This IC also provides RTC and battery backup for

time-of-use (TOU) metering.

Figure 1: Meter Block Diagram

As shown in the block diagram (Figure 1), the host

processor

through a UART interface using the programmable

IRQZ interrupt. The 71M6515H calculates and accu-

mulates meter measurements for each accumulation

interval. A high-speed synchronous serial port (SSI)

is provided to facilitate high-end metering. Integrated

rectifying functions on the battery-backup circuit

enable minimal external component usage and

minimum back-up current. Also, eight multipurpose

pins are provided for control of peripherals.

Page: 1 of 60

Single Converter Technology is a registered trademark of

Maxim Integrated Products, Inc.

REFERENCE

TERIDIAN 71M6515H

COMPUTE

VOLTAGE

ENGINE

RTC

A Maxim Integrated Products Brand

communicates

CONTROL

RAM

Battery

with

UART, IRQZ

DIO

the

SSI

71M6515H

CESSOR

HOST

PRO-

FEATURES

High Accuracy

 < 0.1% Wh accuracy over 2000:1 range

 Exceeds IEC 62053/ANSIC 12.20 specifications

 Up to 10ppm/C precision ultra-stable voltage

 Single Converter Technology reduces cross talk

 Six sensor inputs—referenced to V3P3

 Compatible with CTs, resistive shunts and

 Digital temperature compensation

 Sag detection

 Measures Wh, VARh, VAh, Vrms, Irms, V-to-V

 Four-quadrant metering.

 Four low-jitter pulse outputs from selectable

 Four pulse count registers

 Selectable default status for pulse pins

 Same calibration data for 46Hz to 64Hz line

 Broad CT phase compensation (±7deg)

Battery Backup

 Powers real-time clock during power supply

 Compatible with Li-ion, NiCd, or super capacitor

 Battery backup current 2µA typical at 25°C

External Data Interface

 UART control interface, two selectable data rates

 8 general-purpose I/O pins with alarm capability

 5 or 10MHz selectable high-speed synchronous

 IRQ output signal for alarms and end of

 Alarms on voltage sag, overvoltage, overcurrent

Low System Cost

 Power consumption 30mW at 3.3V typical

 Real-time clock with temperature compensation

 Built-in power-fault detection

 Single 32kHz crystal time base

 Single-supply operation (3.3V)

 64-lead LQFP package

reference

and power consumption

Rogowski Coil sensors

phase and load angle on each phase

measurements

frequency

outage

serial output for DSP interface

measurement intervals

Energy Meter IC

DATA SHEET

71M6515H

19-5361; Rev 7/11

JULY 2011

1.6

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