MCP3905EV Microchip Technology, MCP3905EV Datasheet - Page 16

• 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
DS51567B-page 16
2.5.4
Channel 0 is a differential input to the MCP3905A device and is intended for the
current-sensing channel of the energy meter. Channel 0 on this evaluation board
contains resistor sockets for CT burden resistors, as well as a RC filter on each input,
with the option of shorting either input to ground. Two examples of jumper configuration
are given in Figure 2-8 and Figure 2-9.
FIGURE 2-8:
FIGURE 2-9:
Connection to Current Transformer.
Jumpers and Shunts for MCP3905A Channel 0 Input
Configurations (JP5, JP6, ZN-N)
+
–
Channel 0 Jumpers for 250 µ
Example of Channel 0 Jumpers with 60
open
JP3
short
JP3
Ω
Shunt Selection.
1 kΩ
1 kΩ
R
R
1 kΩ
1 kΩ
R
R
23
24
23
24
© 2009 Microchip Technology Inc.
Ω
Burden Resistor for
C
0.033 µF
C
0.033 µF
20
0.033 µF
21
C
0.033 µF
C
20
21
CH0+
CH0-
CH0+
CH0-