ADE7569ASTZF16【PDF 1/136 页】IC ENERGY METER MCU 16K 64LQFP

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Single-Phase Energy Measurement IC with

8052 MCU, RTC, and LCD Driver

Preliminary Technical Data

GENERAL FEATURES

Wide supply voltage operation: 2.4 V to 3.7 V

Battery supply input with automatic switchover

Reference: 1.2 V ± 1% (drift 50 ppm/°C maximum)

64-lead RoHS package options

Lead frame chip scale package (LFCSP)

Low profile quad flat package (LQFP)

Operating temperature range: ?40°C to +85°C

ENERGY MEASUREMENT FEATURES

High accuracy, active, reactive, and apparent energy

measurement IC

Supports IEC 62053-21, IEC 62053-22, IEC 62053-23

One differential input with PGAs support shunts, current

transformers, and di/dt current sensors

Selectable digital integrator support di/dt current sensor

Digital parameters for gain, offset, and phase compensation

Selectable no-load threshold level for W, VA, and VAR

creep protection

Less than 0.1% error on active energy over a dynamic range

of 1000 to 1 @ 25°C

Less than 0.5% error on reactive energy over a dynamic

range of 1000 to 1 @ 25°C

Less than 0.5% error on rms measurements over a dynamic

range of 500 to 1 for current and 100 to 1 for voltage @ 25°C

High frequency outputs supply proportional to I rms , active,

reactive, or apparent power

Proprietary ADCs and DSP provide high accuracy over large

variations in environmental conditions and time

Temperature monitoring

GENERAL DESCRIPTION

The ADE7566/ADE7569 1 integrate Analog Devices Inc. Energy

(ADE) metering IC analog front end and fixed function DSP

solution with an enhanced 8052 MCU core, an RTC, an LCD

driver, and all the peripherals to make an electronic energy

meter with an LCD display in a single part.

The ADE measurement core includes active, reactive, and

apparent energy calculations, as well as voltage and current rms

measurements. This information is ready to use for energy billing

by using built-in energy scalars. Many power line supervisory

features such as SAG, peak, and zero-crossing are included in

the energy measurement DSP to simplify energy meter design.

ADE7566/ADE7569

MICROPROCESSOR FEATURES

8052-based core

Single-cycle 4 MIPS 8052 core

8052-compatible instruction set

32.768 kHz external crystal with on-chip PLL

Two external interrupt sources

External reset pin

Real-time clock

Counter for seconds, minutes, and hours

Automatic battery switchover for RTC backup

Ultralow battery supply current < 1.5 μA

Software clock calibration with temperature and

offset compensation

Integrated LCD driver

108 segment with 2, 3, or 4 multiplexers

3 V/5 V driving capability

Internally generated LCD drive voltages

Temperature and supply compensated drive voltages

Low power battery mode

Wake-up from I/O and UART

LCD driver capability

On-chip peripherals

UART, SPI, or I 2 C

Watchdog timer

Power supply monitoring with user-selectable levels

Memory: 16 kB flash memory, 512 bytes RAM

Development tools

Single-pin emulation

IDE-based assembly and C-source debugging

The microprocessor functionality includes a single cycle

8052 core, a real-time clock with a power supply backup pin,

a UART, and an SPI or I 2 C interface. The ready-to-use informa-

tion from the ADE core reduces the program memory size

requirement, making it easy to integrate complicated design

into 16 kB of flash memory.

The ADE7566/ADE7569 also include a 108-segment LCD driver.

This driver generates voltages capable of driving 5 V LCDs.

Patents pending.

Rev. PrA

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700 www.analog.com

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