90E21PYGI datasheet, PDF - EEWORLD Datasheet

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90E21PYGI: DescriptionSPECIALTY ANALOG CIRCUIT, PDSO28; Categoryaccessories; File Size711KB，57 Pages; ManufacturerIDT (Integrated Device Technology, Inc.); Websitehttp://www.idt.com/

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SPECIALTY ANALOG CIRCUIT, PDSO28

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Single-Phase High-Performance

Wide-Span Energy Metering IC

90E21/22/23/24

Version 6

January 10, 2012

6024 Silver Creek Valley Road, San Jose, CA 95138

Printed in U.S.A.

Table of Contents

FEATURES .............................................................................................................................................................................. 6

APPLICATION ......................................................................................................................................................................... 6

DESCRIPTION......................................................................................................................................................................... 6

BLOCK DIAGRAM .................................................................................................................................................................. 7

1 PIN ASSIGNMENT ............................................................................................................................................................. 9

2 PIN DESCRIPTION .......................................................................................................................................................... 10

3 FUNCTIONAL DESCRIPTION ......................................................................................................................................... 12

3.1

3.2

3.3

3.4

3.5

3.6

3.7

4.1

DYNAMIC METERING RANGE .................................................................................................................................................................... 12

STARTUP AND NO-LOAD POWER ............................................................................................................................................................. 12

ENERGY REGISTERS .................................................................................................................................................................................. 12

N LINE METERING AND ANTI-TAMPERING .............................................................................................................................................. 13

3.4.1 Metering Mode and L/N Line Current Sampling Gain Configuration ......................................................................................... 13

3.4.2 Anti-Tampering Mode .................................................................................................................................................................... 13

MEASUREMENT AND ZERO-CROSSING ................................................................................................................................................... 14

3.5.1 Measurement .................................................................................................................................................................................. 14

3.5.2 Zero-Crossing ................................................................................................................................................................................. 14

CALIBRATION .............................................................................................................................................................................................. 15

RESET ........................................................................................................................................................................................................... 15

SERIAL PERIPHERAL INTERFACE (SPI) ................................................................................................................................................... 16

4.1.1 Four-Wire Mode .............................................................................................................................................................................. 16

4.1.2 Three-Wire Mode ............................................................................................................................................................................ 17

4.1.3 Timeout and Protection ................................................................................................................................................................. 18

WARNOUT PIN FOR FATAL ERROR WARNING ....................................................................................................................................... 18

LOW COST IMPLEMENTATION IN ISOLATION WITH MCU ...................................................................................................................... 18

REGISTER LIST ............................................................................................................................................................................................ 19

STATUS AND SPECIAL REGISTER ............................................................................................................................................................ 21

METERING/ MEASUREMENT CALIBRATION AND CONFIGURATION .................................................................................................... 25

5.3.1 Metering Calibration and Configuration Register ....................................................................................................................... 25

5.3.2 Measurement Calibration Register ............................................................................................................................................... 32

ENERGY REGISTER .................................................................................................................................................................................... 37

MEASUREMENT REGISTER ....................................................................................................................................................................... 41

ELECTRICAL SPECIFICATION ................................................................................................................................................................... 48

SPI INTERFACE TIMING .............................................................................................................................................................................. 50

POWER ON RESET TIMING ........................................................................................................................................................................ 51

ZERO-CROSSING TIMING ........................................................................................................................................................................... 51

VOLTAGE SAG TIMING ............................................................................................................................................................................... 52

PULSE OUTPUT ........................................................................................................................................................................................... 52

ABSOLUTE MAXIMUM RATING .................................................................................................................................................................. 53

4 INTERFACE ..................................................................................................................................................................... 16

4.2

4.3

5.1

5.2

5.3

5.4

5.5

5 REGISTER ........................................................................................................................................................................ 19

6 ELECTRICAL SPECIFICATION ....................................................................................................................................... 48

6.1

6.2

6.3

6.4

6.5

6.6

6.7

PACKAGE DIMENSIONS...................................................................................................................................................... 54

ORDERING INFORMATION.................................................................................................................................................. 57

Table of Contents

January 10, 2012

List of Tables

Table-1

Table-2

Table-3

Table-4

Table-5

Table-6

Table-7

Table-8

Table-9

Table-10

Table-11

Table-12

Table-13

Table-14

Table-15

Function List ................................................................................................................................................................................................... 6

Pin Description ............................................................................................................................................................................................. 10

Active Energy Metering Error ....................................................................................................................................................................... 12

Reactive Energy Metering Error ................................................................................................................................................................... 12

Threshold Configuration for Startup and No-Load Power ............................................................................................................................ 12

Energy Registers ......................................................................................................................................................................................... 12

Metering Mode ............................................................................................................................................................................................. 13

The Measurement Format ........................................................................................................................................................................... 14

Read / Write Result in Four-Wire Mode ....................................................................................................................................................... 18

Read / Write Result in Three-Wire Mode ..................................................................................................................................................... 18

Register List ................................................................................................................................................................................................. 19

SPI Timing Specification .............................................................................................................................................................................. 50

Power On Reset Specification ..................................................................................................................................................................... 51

Zero-Crossing Specification ......................................................................................................................................................................... 52

Voltage Sag Specification ............................................................................................................................................................................ 52

List of Tables

January 10, 2012

List of Figures

Figure-1

Figure-2

Figure-3

Figure-4

Figure-5

Figure-6

Figure-7

Figure-8

Figure-9

Figure-10

Figure-11

Figure-12

Figure-13

Figure-14

Figure-15

90E21 Block Diagram .................................................................................................................................................................................... 7

90E22 Block Diagram .................................................................................................................................................................................... 7

90E23 Block Diagram .................................................................................................................................................................................... 8

90E24 Block Diagram .................................................................................................................................................................................... 8

Pin Assignment (Top View) ............................................................................................................................................................................ 9

Read Sequence in Four-Wire Mode ............................................................................................................................................................ 16

Write Sequence in Four-Wire Mode ............................................................................................................................................................. 16

Read Sequence in Three-Wire Mode .......................................................................................................................................................... 17

Write Sequence in Three-Wire Mode ........................................................................................................................................................... 17

4-Wire SPI Timing Diagram ......................................................................................................................................................................... 50

3-Wire SPI Timing Diagram ......................................................................................................................................................................... 50

Power On Reset Timing Diagram ................................................................................................................................................................ 51

Zero-Crossing Timing Diagram ................................................................................................................................................................... 51

Voltage Sag Timing Diagram ...................................................................................................................................................................... 52

Output Pulse Width ..................................................................................................................................................................................... 52

List of Figures

January 10, 2012

90E21PYGI Related Products

	90E21PYGI	90E21	90E22PYGI	90E23PYGI	90E24PYGI
Description	SPECIALTY ANALOG CIRCUIT, PDSO28	SPECIALTY ANALOG CIRCUIT, PDSO28	SPECIALTY ANALOG CIRCUIT, PDSO28	SPECIALTY ANALOG CIRCUIT, PDSO28	SPECIALTY ANALOG CIRCUIT, PDSO28

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