MCP3909-I/SS Microchip Technology, MCP3909-I/SS Datasheet - Page 58

• 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
6.10
DS51723A-page 58
CALIBRATE METER VOLTAGE/CURRENT COMMAND
TABLE 6-22:
TABLE 6-23:
TABLE 6-24:
1
2
3
4-7
Data Field
0xFF, 0x00
0xFF, 0x00
START
START
Byte
Phase Select
Range Select
Channel Select
Correction Factor (Error Being Calibrated Out)
Command
Command
PC TO METER (7 BYTES)
METER RESPONSE (7 BYTES)
CALIBRATION OF GAIN AND OFFSET VALUES
0x63
0x64
Length
Length
Data
Data
Description
7
0
Data Field
Data Field
0x07
0x00
Check Sum
Check Sum
© 2009 Microchip Technology Inc.
XX
XX
0x01 = Phase A
0x02 = Phase B
0x03 = Phase C
0x01 = 10%
0x02 = 100%
0x00 = Current
0x01 = Voltage
Float, 4 Bytes Total
Value
STOP
STOP
0xE0
0xE0