MCP3909-ESLASHSS datasheet(1/44 Pages) MICROCHIP

部件名	MCP3909-E/SS

功能描述	Energy Metering IC with SPI Interface and Active Power Pulse Output

PDF	44 Pages

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制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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1 / 44 page

 2006-2012 Microchip Technology Inc.

DS22025C-page 1

MCP3909

Features

• Supports IEC 62053 International Energy

Metering Specification

• Digital Waveform Data Access Through SPI

Interface

- 16-bit Dual ADC Output Data Words

- 20-bit Multiplier Output Data Word

• Dual Functionality Pins Support Serial Interface

Access and Simultaneous Active Power Pulse

Output

• Two 16-bit Second Order Delta-sigma Analog-

to-Digital Converters (ADCs) with Multi-bit DAC

- 81 dB SINAD (typical) on Both Channels

• 0.1% Typical Active Energy Measurement Error

Over 1000:1 Dynamic Range

• PGA for Small Signal Input Supports Low Value

Shunt Current Sensor

• Ultra-low Drift On-chip Reference,15 ppm/°C

(typical)

• Direct Drive for Electromagnetic Mechanical

Counter and Two-phase Stepper Motors

•Low IDD of 4 mA (maximum)

• Tamper Output Pin for Negative Power Indication

• Temperature Ranges:

- Industrial: -40°C to +85°C

- Extended: -40°C to +125°C

Description

The MCP3909 device is an energy-metering IC

designed to support the IEC 62053 international meter-

ing standard specification. It supplies a frequency out-

put proportional to the average active real power, with

simultaneous serial access to ADC channels and mul-

tiplier output data. This output waveform data is avail-

able at up to 14 kHz with 16-bit ADC output and 20-bit

multiplier output words. The 16-bit, delta-sigma ADCs

allow for a wide range of IB and IMAX currents and/or

small shunt (<200 µOhms) meter designs. A no-load

threshold block prevents any current creep measure-

ments

for

the

active

power

pulse

outputs.

The integrated on-chip voltage reference has an

ultra-low temperature drift of 15 ppm per degree C.

This accurate energy metering IC with high field reli-

ability is available in the industry standard 24-lead

SSOP pinout.

Package Type

FOUT0

DGND

NEG/SDO

1

2

3

4

24

23

22

21

20

19

18

17

5

6

7

8

FOUT1

NC

CLKOUT

CLKIN

DVDD

HPF

AVDD

NC

CH0+

CH0-

CH1-

CH1+

HFOUT

16

9G0

MCLR

15

14

10

11

G1

F0/CS

REFIN/OUT

AGND

13

12

F1/SDI

F2/SCK

24-Lead

SSOP

Energy Metering IC with SPI Interface and Active Power Pulse Output

类似零件编号 - MCP3909-E/SS

制造商	部件名	数据表	功能描述
Microchip Technology	MCP3909-I/SS	1Mb / 40P	Energy Metering IC with SPI Interface and Active Power Pulse Output 2006
Microchip Technology	MCP3909-I/SS	1Mb / 44P	Energy Metering IC with SPI Interface and Active Power Pulse Output 2009

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