MCP3905-I/SS Microchip Technology, MCP3905-I/SS Datasheet
MCP3905-I/SS
Specifications of MCP3905-I/SS
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MCP3905-I/SS Summary of contents
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... CH1- ΔΣ ADC © 2007 Microchip Technology Inc. MCP3905/06 Description The MCP3905/06 devices are energy-metering ICs designed to support the IEC 62053 International Metering Standard Specification. They supply a frequency output proportional to the average active (real) power, as well as a higher-frequency output proportional to the instantaneous power for meter calibration ...
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... DV = 4.5V – 5.5V -40°C to +85°C. A Comment Channel 0 swings 1:500 range, MCP3905 only (Note 1, Note 4) Channel 0 swings 1:1000 range, MCP3906 only (Note 1, Note 4) Disabled when F2, F1 (Note 5, Note 6) HPF = 0 and 1, < 1 MCLK (Note 4, Note 6, Note 7) F2, F1 (Note 3) HPF = 1, Gain = 1 (Note 3) ...
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... Parameters Sym Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Note: The MCP3905/06 operate over this extended temperature range, but with reduced performance. In any case, the Junction Temperature (T © 2007 Microchip Technology Inc 0V, MCLK = 3.58 MHz; T GND GND Min Typ ...
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... MCP3905/06 TIMING CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, all parameters apply 0V, MCLK = 3.58 MHz; T GND GND Parameter Frequency Output F and F Pulse Width OUT0 OUT1 (Logic-Low) HF Pulse Width OUT F and F Pulse Period OUT0 OUT1 HF Pulse Period OUT Falling-Edge Time OUT0 OUT1 Min Separation ...
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... FIGURE 2-6: Gain = 32 0.5. MCP3905/06 = Internal, HPF = 1 (AC mode), +85°C +25°C -40°C 0.0001 0.0010 0.0100 0.1000 CH1 Vp-p Amplitude (V) Measurement Error, +85°C +25°C -40°C 0.0001 0.0010 0.0100 0.1000 ...
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... MCP3905/06 Note: Unless otherwise specified MCLK = 3.58 MHz. 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 0.0001 0.0010 0.0100 0.1000 CH0 Vp-p Amplitude (V) FIGURE 2-7: Measurement Error, Gain = 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 0.0001 ...
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... V DD -0.3 -0.4 -0.5 0.0001 FIGURE 2-15 16). 0.3 0.25 0.2 0.15 0.1 0. -0.05 -0.1 -0.15 0.0001 FIGURE 2-16 16, External V MCP3905/06 = Internal, HPF = 1 (AC mode), Bin (mV) Channel 0 Offset Error V =5. =4. =4.75V DD =5.25V V =5.5V DD 0.0010 0.0100 0.1000 1.0000 CH0 Vp-p Amplitude (V) Measurement Error vs. V ...
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... MCP3905/06 Note: Unless otherwise specified MCLK = 3.58 MHz. 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 0.0001 0.0010 0.0100 0.1000 CH0 Vp-p Amplitude (V) FIGURE 2-17: Measurement Error w/ External 1). REF 0.3 0.2 0.1 +25°C 0 -0.1 -0.2 -0.3 0.0000 0.0001 0.0010 0.0100 CH1 Vp-p Amplitude (V) ...
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... OUT0 3.1 Digital V ( the power supply pin for the digital circuitry DD within the MCP3905/06. DV requires appropriate bypass capacitors and DD should be maintained to 5V ±10% for specified operation. Please refer to Section 5.0 “Applications Information”. 3.2 High-Pass Filter Input Logic Pin (HPF) HPF controls the state of the high-pass filter in both input channels. A logic ‘ ...
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... MCP3905/06 3.5 Voltage Channel (CH1-,CH1+) CH1- and CH1+ are the fully differential analog voltage input channels for the voltage measurement. The linear and specified region of these channels have a maximum differential voltage of ±660mV and a maximum absolute voltage of ±1V, with respect ±6V can be applied to these pins without GND the risk of permanent damage ...
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... Figure 4-1 represents the simplified block diagram of the MCP3905/06, detailing its main signal-processing blocks. Two digital high-pass filters cancel the system offset on both channels such that the real-power calculation does not include any circuit or system offset ...
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... Delta-Sigma ADCs The ADCs used in the MCP3905/06 for both current and voltage channel measurements are delta-sigma ADCs. They comprise a second-order, delta-sigma modulator using a multi-bit DAC and a third-order SINC filter. The delta-sigma architecture is very appropriate for the applications targeted by the MCP3905, because ...
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... Section 5.0 “Applications Information”). The threshold voltage is typically set at 4V, with a tolerance of about ±5%. If the supply voltage falls below this threshold, the MCP3905/06 will be held in a Reset condition (equivalent to applying logic ‘0’ on the MCLR pin). The typical hysteresis value is approximately 200 mV in order to prevent glitches on the power supply ...
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... MCP3905/06 4.6 Low-Pass Filter and DTF Converter The MCP3905/06 low-pass filter is a first-order IIR filter that extracts the active (real) power information (DC component) from the instantaneous power signal. The magnitude response of this filter is detailed in Figure 4- 5. Due to the fact that the instantaneous power signal has harmonic content (coming from the 2ω ...
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... OUT0/1 tings. × Frequency (Hz) OUT F (Hz) C with Full-Scale (MCLK = 3.58 MHz) DC Inputs 1.71 3.41 6.83 13.66 MCP3905/06 depends on the C digital settings. Table 4-3 shows OUT1 = 2.4V) REF F Frequency (Hz) OUT with Full-Scale AC Inputs 0.74 0.37 1.48 0.74 2.96 1.48 5.93 2 ...
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... MINIMAL OUTPUT FREQUENCY FOR NO-LOAD THRESHOLD The MCP3905/06 also includes, on each output frequency, a no-load threshold circuit that will eliminate any creep effects in the meter. The outputs will not show any pulse if the output frequency falls below the no-load threshold. The minimum output frequency on ...
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... Compensation for parasitic shunt inductance • EMC design • Power supply design • No-load threshold • Start-up current • Accuracy testing results from MCP3905-based meter • EMC testing results from MCP3905-based meter © 2007 Microchip Technology Inc. MCP3905/06 note DS21948D-page 17 ...
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... This package is Pb-free. The Pb-free JEDEC designator ( can be found on the outer packaging for this package. Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. DS21948D-page 18 Examples: MCP3905 e I/SS^^ 3 0739256 ...
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... A2 1.65 1.75 A1 0.05 – E 7.40 7.80 E1 5.00 5.30 D 7.90 8.20 L 0.55 0.75 L1 1.25 REF c 0.09 – φ 0° 4° b 0.22 – Microchip Technology Drawing C04-132B MCP3905/06 φ L MAX 2.00 1.85 – 8.20 5.60 8.50 0.95 0.25 8° 0.38 DS21948D-page 19 ...
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... MCP3905/06 NOTES: DS21948D-page 20 © 2007 Microchip Technology Inc. ...
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... Original Release of this Document. Revision B (August 2005) Replace Figures 2-1 thru 2-6 in Section 2.0 “Typical Performance Curves” Revision C (October 2005) Added references to MCP3905/06 throughout document. Revision D (February 2007) This revision includes updates to the packaging diagrams. © 2007 Microchip Technology Inc. ...
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... MCP3905/06 NOTES: DS21948D-page 22 l © 2007 Microchip Technology Inc. ...
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... MCP3906T: Energy-Metering IC (Tape and Reel) Temperature Range -40°C to +85°C Package Plastic Shrink Small Outline (209 mil Body), 24-lead © 2007 Microchip Technology Inc. MCP3905/06 . Examples: a) MCP3905-I/SS: Industrial Temperature, 24LD SSOP. b) MCP3905T-I/SS: Tape and Reel, Industrial Temperature, 24LD SSOP. a) MCP3906-I/SS: Industrial Temperature, 24LD SSOP. b) ...
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... MCP3905/06 NOTES: DS21948D-page 24 © 2007 Microchip Technology Inc. ...
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... Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
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... Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 Confidential © 2007 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...