MCP3909-I/SS Microchip Technology, MCP3909-I/SS Datasheet - Page 13

• 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

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FIGURE 1-1:
1.4
© 2009 Microchip Technology Inc.
ICD Interface
GETTING STARTED
UART Interface
MCP3909 / dsPIC33F 3-Phase Energy Meter Reference Design.
To describe how to use the MCP3909 / dsPIC33F 3-Phase Energy Meter Reference
Design, the following example is given using a 4-wire, 3-phase, 220VAC line voltage
and connection. The rated current of the energy meter is 5(20)A.
The energy meters are not shipped fully calibrated, and a full calibration should be
performed to show the true meter accuracy. See Chapter 4. “Meter Calibration” for
more information.
All connections described in this section are dependent on the choice of current
sensing element and a secondary external transformer may be required in higher
current meter designs.
dsPIC33
MCP3909
Meter Overview
Current Transformer
DS51723A-page 13