MCP3905A-ESS Microchip

MCP3905A/05L/06A Energy Metering ICs with Active Real Power Pulse Output Features Description The MCP3905A/05L/06A devices are energy-metering Supplies active (real) power measurement for ICs designed to support the IEC 62053 international single-phase, residential energy metering metering standard specification. They supply a Supports IEC 62053 International Energy frequency output proportional to the average active real Metering Specification and legacy IEC power, as well as a higher-frequency output 1036/61036/687 Specifications proportional to the instantaneous power for meter Two multi-bit, DAC, second-order, 16-bit, Delta- calibration. The MCP3905L offers reduced pulse width Sigma Analog-to-Digital Converters (ADCs) of calibration output frequency and mechanical counter Reduced pulse-width of calibration output drive for lower power meter designs. They include two frequency and mechanical counter drive for low 16-bit, Delta-Sigma ADCs for a wide range of I and B power meter designs (MCP3905L) I currents and/or small shunt (<200 Ohms) meter MAX Increased output frequency constant options for designs. It includes an ultra-low drift voltage reference meter design (MCP3905L) with < 15 ppm/C through a specially designed band gap temperature curve for the minimum gradient 0.1% typical measurement error over 500:1 dynamic range (MCP3905A / MCP3905L) across the industrial temperature range. A fixed- function DSP block is on-chip for active real-power 0.1% typical measurement error over 1000:1 calculation. A no-load threshold block prevents any dynamic range (MCP3906A) current creep measurements. A Power-On Reset Programmable Gain Amplifier (PGA) for small (POR) block restricts meter performance during low- signal inputs supports low value shunt current voltage situations. These accurate energy metering ICs sensor: with high field reliability are available in the industry - 16:1 PGA - MCP3905A / MCP3905L standard pinout. - 32:1 PGA - MCP3906A Package Type Ultra-low drift on-chip reference: DV 1 24 F DD OUT0 15 ppm/C (typical) 24-Pin SSOP HPF F 2 23 OUT1 Direct drive for electromagnetic mechanical AV 3 22 HF DD OUT counter and two-phase stepper motors NC 4 21 D GND CH0+ 5 20 NEG Low I of 4 mA (typical) DD CH0- 6 19 NC Tamper output pin for negative power indication CH1- 7 18 OSC2 Industrial Temperature Range: -40C to +85C CH1+ 8 17 OSC1 MCLR 9 16 G0 Extended Temperature Range: -40C to +125C REFIN/OUT 10 15 G1 Supplies instantaneous real power on HF for OUT A 11 14 F0 GND meter calibration F2 12 13 F1 Functional Block Diagram G0 G1 HPF OSC1 OSC2 HF OUT F CH0+ + OUT0 16-bit PGA Multi-level F HPF1 F2 F1 F0 OUT1 NEG CH0- ADC REFIN/ E-to-F OUT LPF1 X conversion 2.4V Reference CH1+ + 16-bit POR Multi-level HPF1 CH1- ADC MCLR 2006-2011 Microchip Technology Inc. DS22011B-page 1MCP3905A/05L/06A NOTES: DS22011B-page 2 2006-2011 Microchip Technology Inc.