MCP3909-I/SS Microchip Technology, MCP3909-I/SS Datasheet - Page 14

• Manufacturer Part Number: MCP3909-I/SS
• Description: IC POWER METERING-1 PHASE 24SSOP
• Manufacturer: Microchip Technology

Specifications of MCP3909-I/SS

• Package / Case: 24-SSOP (0.200", 5.30mm Width)
• Input Impedance: 390 KOhm
• Measurement Error: 0.1%
• Voltage - I/o High: 2.4V
• Voltage - I/o Low: 0.85V
• Current - Supply: 2.3mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Meter Type: Single Phase
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Supply Voltage Range: 4.5V To 5.5V
• Digital Ic Case Style: SSOP
• No. Of Pins: 24
• Interface Type: Serial, SPI
• Supply Voltage Max: 5.5V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP3909EV-MCU16 - EVALUATION BOARD FOR MCP3909MCP3909RD-3PH1 - REF DESIGN MCP3909 3PH ENGY MTR
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP3909 / dsPIC33F 3-Phase Energy Meter Reference Design
DS51723A-page 14
Step 1: Connect the meter to 220V line and load
The diagram below shows where the voltage and current connections should be made.
It is not required to connect all 3 phases for the meter to be operational.
220VAC should be placed between either V
The AC load for a given phase should then be connected to the I
phase.
FIGURE 1-2:
Step 2: Turn On Line/Load Power to the Meter
Turn on the power to the energy meter. D1 should be lit showing the meter has power.
At this point, if a load is connected and the meter is measuring power, the power LED,
D1, should be blinking.
IA
IN
VA
Meter Case Bottom.
IA
OUT
IB
IN
VB
IB
A
, V
OUT
B
, V
C
IC
and N
IN
VC
© 2009 Microchip Technology Inc.
IN
, N
IC
IN
OUT
OUT
and I
.
OUT
of a given