MCP3909RD-1PH1 Microchip Technology, MCP3909RD-1PH1 Datasheet - Page 42

• Manufacturer Part Number: MCP3909RD-1PH1
• Description: BOARD DES MCP3909 ENERGY METER
• Manufacturer: Microchip Technology

Specifications of MCP3909RD-1PH1

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP3909, PIC18F85J90
• Primary Attributes: Single Phase Shunt Energy Meter
• Secondary Attributes: 16 Bit ADC
• Ic Function: Single Phase Energy Measurement IC
• Supply Voltage Range: 4.5V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: SSOP
• No. Of Pins: 24
• Interface Type: SPI
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MCP3909/PIC18F85J90 Single Phase Energy Meter Reference Design
5.3.6
FIGURE 5-5:
DS51884A-page 42
Configuration C3 Flow Chart - Offset
Configuration C3 Flow Chart - Active Power Offset .
(suggest 256 Line Cycles)
(V
Put meter in Calibration
CAL_CONTROL register
Enable Calibration Mode
PHA_W_OFF register
Set MODE1 register bits
ENERGY_W_L_RAW
by setting bit 0 and 1 of
B
contents based on
Calculate & Write
LINE_CYC register
Read contents of
Configuration C3
and 1/100 I
Section 5.3.7
equations in
CAL_MODE
End of This
Register
bit 1 low
Phase
to 1
Is
?
YES
B
at PF=1)
NO
© 2009 Microchip Technology Inc.