MCP3905EV Microchip Technology, MCP3905EV Datasheet - Page 12

• Manufacturer Part Number: MCP3905EV
• Description: BOARD DEMO FOR MCP3905
• Manufacturer: Microchip Technology
• Type: Other Power Managementr

Specifications of MCP3905EV

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: No
• Utilized Ic / Part: MCP3905/6
• Primary Attributes: 1-Phase, 120/220 VAC, On Board Transformerless AC/DC 5V Supply
• Silicon Manufacturer: Microchip
• Silicon Core Number: MCP3905A
• Kit Application Type: Power Management
• Application Sub Type: Energy Meter
• Kit Contents: Board & Design Guides
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: MCP3905
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

MCP3905A/06A Evaluation Board User’s Guide
2.2
2.3
DS51567B-page 12
FEATURES
GETTING STARTED
The MCP3905A/06A Evaluation Board has the following features:
• Large space for easy connection to AC line and loads provide area for
• Easy connection to both PICDEM™ demonstration boards for a variety of
• Jumpers and shunts for simple device configuration
• On-board, low-cost AC-to-DC power supply circuitry to demonstrate the low-cost
• EMC immunity and Printed Circuit Board (PCB) design as used in the
• Designed to fit inside recommended plastic enclosure for safe, high-voltage
The following example is given to describe how to use this evaluation board using a
current-sensing shunt, 220 VAC line voltage and a 10A load. All connections described
in this section are dependent on the choice of current-sensing element. A 250 µΩ shunt
is selected as the current-sensing element.
2.3.1
Use the input prototype area to connect the line/load and current-sensing elements to
the appropriate screw-type connector. An example of connecting the shunt is shown in
Figure 2-2. Please note that the phase-side of the line should be used as the GND
reference to the MCP3905A/06A Evaluation Board when using the AC/DC power
supply circuit in shunt examples like the one in Figure 2-2.
FIGURE 2-2:
system is biased to the line-side of the two-wire power supply.
experiments using different current-sensing elements
PICmicro
MCP3905 AFE design used in the MCP3905A/06A Energy Meter Reference
Design (DS51565)
MCP3905A/06A Energy Meter Reference Design (DS51565)
demonstrations and experiments (enclosure is optional and is not included)
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Step 1: Install Current-Sensing Element and Make Appropriate
Input Connections
®
MCU-based meter designs
Example Input Prototype Area Connections Using Shunt. The
High Low
250 µΩ Shunt
CH0+ CH0- CH1A CH1B
© 2009 Microchip Technology Inc.
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