MCP3901A0-E/SS Microchip Technology, MCP3901A0-E/SS Datasheet - Page 3

• Manufacturer Part Number: MCP3901A0-E/SS
• Description: IC ENERGY METER AFE 2CH 20-SSOP
• Manufacturer: Microchip Technology

Specifications of MCP3901A0-E/SS

• Number Of Bits: 24
• Number Of Channels: 2
• Power (watts): 10mW
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.7 V ~ 5.5 V
• Package / Case: 20-SSOP (0.200", 5.30mm Width)
• Ic Function: Analog Front End Device IC
• Supply Voltage Range: 4.5V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: SSOP
• No. Of Pins: 20
• No. Of Channels: 2
• Input Voltage: 2.2 V to 2.6 V
• Mounting Style: SMD/SMT
• Supply Voltage Max: 5.5V
• Rohs Compliant: Yes
• Interface Type: SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Preface ........................................................................................................................... 5
Chapter 1. Product Overview
Chapter 2. Installation and Operation
Appendix A. Schematics and Layouts
Appendix B. Bill of Materials
Worldwide Sales and Service .................................................................................... 30
 2010 Microchip Technology Inc.
Introduction............................................................................................................ 5
Document Layout .................................................................................................. 5
Conventions Used in this Guide ............................................................................ 6
Recommended Reading........................................................................................ 7
The Microchip Web Site ........................................................................................ 7
Customer Support ................................................................................................. 7
Document Revision History ................................................................................... 7
1.1 Overview ........................................................................................................ 9
1.2 Analog Input Circuit ...................................................................................... 10
1.3 Power Circuit ................................................................................................ 10
1.4 PIC18F25K20 Microcontroller and Liquid Crystal Display (LCD) ................. 10
2.1 Power Monitor Firmware Description ........................................................... 11
2.2 Calibration Procedure ................................................................................... 18
A.1 Board Schematic – Analog and Power ........................................................ 22
A.2 Board Schematic – Microcontroller and LCD ............................................... 23
A.3 Board Schematic – Universal Serial Bus ..................................................... 24
A.4 Board – Top Trace and Top Silk .................................................................. 25
A.5 Board – Bottom Trace and Bottom Silk ........................................................ 25
Table of Contents
MCP3901 LOW-COST POWER
MONITOR USER’S GUIDE
DS51915A-page 3