MCP3905L-I/SS Microchip Technology, MCP3905L-I/SS Datasheet

MCP3905L-I/SS

Manufacturer Part Number

MCP3905L-I/SS

Description

IC,Power Metering,SSOP,24PIN,PLASTIC

Manufacturer

Microchip Technology

Datasheets

1.MCP3905L-ISS.pdf (30 pages)

2.MCP3906A-ISS.pdf (26 pages)

3.MCP3905L-ISS.pdf (26 pages)

Specifications of MCP3905L-I/SS

Input Impedance

390 KOhm

Measurement Error

0.1%

Voltage - I/o High

2.4V

Voltage - I/o Low

0.85V

Current - Supply

2.7mA

Voltage - Supply

4.5 V ~ 5.5 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

24-SSOP (0.200", 5.30mm Width)

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

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

For Use With

MCP3905RD-PM1 - REFERENCE DESIGN FOR MCP3905MCP3905EV - BOARD DEMO FOR MCP3905

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

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Features

• Supplies active (real) power measurement for

• Supports IEC 62053 International Energy

• Two multi-bit, DAC, second-order, 16-bit, Delta-

• Reduced pulse width of calibration output

• Increased output frequency constant options for

• 0.1% typical measurement error over 500:1

• 0.1% typical measurement error over 1000:1

• Programmable Gain Amplifier (PGA) for small sig-

• Ultra-low drift on-chip reference: 15 ppm/°C (typ.)

• Direct drive for electromagnetic mechanical

• Low I

• Tamper output pin for negative power indication

• Industrial Temperature Range: -40°C to +85°C

• Supplies instantaneous real power on HF

Functional Block Diagram

Energy Metering ICs with Active Real Power Pulse Output

single-phase, residential energy metering

Metering Specification and legacy IEC

1036/61036/687 Specifications

Sigma Analog-to-Digital Converters (ADCs)

frequency and mechanical counter drive for low

power meter designs (MCP3905L)

meter design (MCP3905L)

dynamic range (MCP3905A / MCP3905L)

dynamic range (MCP3906A)

nal inputs supports low value shunt current sen-

sor:

- 16:1 PGA - MCP3905A / MCP3905L

- 32:1 PGA - MCP3906A

counter and two-phase stepper motors

meter calibration

REFIN/

CH0+

OUT

CH1+

CH0-

CH1-

of 4 mA (typ.)

Reference

G0 G1

–

2.4V

PGA

Multi-level

ΔΣ ADC

MCP3905A/05L/06A

16-bit

OUT

for

HPF1

HPF

Description

The MCP3905A/05L/06A 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,

proportional to the instantaneous power for meter

calibration. The MCP3905L offers reduced pulse width

of calibration output frequency and mechanical counter

drive for lower power meter designs. They include two

16-bit, Delta-Sigma ADCs for a wide range of I

designs. It includes an ultra-low drift voltage reference

with < 15 ppm/°C through a specially designed band

gap temperature curve for the minimum gradient across

the industrial temperature range. A fixed-function DSP

block is on-chip for active real-power calculation. A no-

load threshold block prevents any current creep

measurements. A Power-On Reset (POR) block

restricts

situations. These accurate energy metering ICs with

high field reliability are available in the industry standard

pinout.

Package Type

MAX

24-Pin SSOP

OSC1 OSC2

currents and/or small shunt (<200 µOhms) meter

LPF1

meter

POR

well

REFIN/OUT

MCLR

performance

CH0+

CH1+

CH0-

CH1-

HPF

GND

higher-frequency

conversion

E-to-F

OUT

during

OUT1

NEG

OSC2

OSC1

MCLR

OUT0

OUT1

DS22011A-page 1

GND

OUT

OUT0

low-voltage

NEG

output

and

Related parts for MCP3905L-I/SS

MCP3905L-I/SS Summary of contents

Page 1

... The MCP3905L offers reduced pulse width of calibration output frequency and mechanical counter drive for lower power meter designs. They include two 16-bit, Delta-Sigma ADCs for a wide range currents and/or small shunt (< ...

Page 2

... DV = 4.5V – 5.5V -40°C to +85°C. A Comment Channel 0 swings 1:500 range, MCP3905A, MCP3905L only (Note 1, Note 4) Channel 0 swings 1:1000 range, MCP3906A 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) ...

Page 3

... Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Note: The MCP3905A/05L/06A operate over this extended temperature range, but with reduced performance. In any case, the Junction Temperature (T © 2006 Microchip Technology Inc. MCP3905A/05L/06A , D = 0V, MCLK = 3.58 MHz; T GND GND Min Typ ...

Page 4

... Input Leakage Current Pin Capacitance Note 1: If output pulse period (t ) falls below 984376*2 MCLK periods for MCP3905A/6A and 465344*2 MCLK FP periods for MCP3905L, then output pulse period (t ) falls below 322160*2 MCLK periods for MCP3905A/6A and 232672*2 MCLK HP periods for MCP3905L, then t periods) ...

Page 5

Page 6

... CH1 Vp-p Amplitude (V) Measurement Error, +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 CH1 Vp-p Amplitude (V) Measurement Error, © 2006 Microchip Technology Inc. ...

Page 7

Page 8

... Channel 0 Offset (V) Channel 0 Offset Error V =5. =4. =4.75V DD =5.25V DD V =5.5V DD 0.0010 0.0100 0.1000 1.0000 CH0 Vp-p Amplitude (V) Measurement Error vs =4.75V DD V =4.5V DD =5. =5.25V DD V =5.5V DD 0.0010 0.0100 0.1000 1.0000 CH0 Vp-p Amplitude (V) Measurement Error vs REF © 2006 Microchip Technology Inc. , ...

Page 9

... 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) FIGURE 2-18: Measurement Error w/ External 8). REF © 2006 Microchip Technology Inc. MCP3905A/05L/06A , GND GND REF 0.3 0.2 0.1 +85°C 0 +25°C - 40°C -0.1 -0.2 -0.3 1 ...

Page 10

... PGA gain. This corresponds to a maximum differential voltage of ±470 mV/GAIN and maximum absolute voltage, with respect to A ±1V ±6V can be applied to these pins without the risk of permanent damage. Refer to Section 1.0 “Electrical Characteristics”. ( Section 5.0 “Applications , of GND © 2006 Microchip Technology Inc. ...

Page 11

... Gain Control Logic Pins (G1, G0) G1 and G0 select the PGA gain on Channel 0 from three different values and 16. © 2006 Microchip Technology Inc. MCP3905A/05L/06A 3.11 Oscillator (OSC1, OSC2) OSC1 and OSC2 provide the master clock for the device. A resonant crystal or clock source with a similar sinusoidal waveform must be placed across these pins to ensure proper operation ...

Page 12

... Section 4.7 Frequencies”). HPF X LPF HPF Offset Instantaneous Removed by HPF Power Block Diagram with Frequency Contents. and F outputs are designed to drive OUT1 “F and HF Output OUT0/1 OUT MCP3905 MCP390X F OUT0 ... OUT1 HF OUT DTF 0 Instantaneous Real Power © 2006 Microchip Technology Inc. ...

Page 13

... The maximum differen- tial voltage specified on Channel 0 is equal to ±470 mV/Gain (see Table 4-1). The maximum peak voltage specified on Channel 1 is equal to ±660 mV. TABLE 4-1: . MCP3905A/MCP3905L GAIN SELECTIONS G1 G0 CH0 Gain ...

Page 14

... The two high-pass filters can be disabled by applying logic ‘0’ to the HPF pin -10 -15 -20 -25 -30 -35 -40 0.1 FIGURE 4-4: (MCLK = 3.58 MHz). 1s Time NO PROPER PULSE RESET OPERATION OUT Power-on Reset Operation 100 1000 Frequency (Hz) HPF Magnitude Response © 2006 Microchip Technology Inc. ...

Page 15

... OUT0/1 OUT pulse (See Section 4.7 “F and HF OUT0/1 Frequencies”). © 2006 Microchip Technology Inc. MCP3905A/05L/06A The equivalent quantity of real energy required to output a pulse is much larger for the F than the HF . This is such that the integration period OUT ...

Page 16

... REF The constant HF depends on the F C OUT0 digital settings with the Table 4-4. The detailed timings of the output pulses are described in the Timing Characteristics table (see Section 1.0 “Electrical Characteristics” and Figure TABLE 4-3: MCP3905L OUTPUT FREQUENCY SETTINGS 64XF MCLK ...

Page 17

... 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 © 2006 Microchip Technology Inc. MCP3905A/05L/06A note DS22011A-page 17 ...

Page 18

... 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. DS22011A-page 18 Examples: MCP3905A I/SS 0637256 ) e 3 © 2006 Microchip Technology Inc. ...

Page 19

... Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. JEDEC Equivalent: MO-150 Drawing No. C04-301 © 2006 Microchip Technology Inc. MCP3905A/05L/06A Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www ...

Page 20

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Page 22

Page 23

... Microchip Technology Inc. MCP3905A/05L/06A . Examples: a) MCP3905A-I/SS: Industrial Temperature, 24LD SSOP. b) MCP3905AT-I/SS: Tape and Reel, Industrial Temperature, 24LD SSOP. a) Industrial Temperature, MCP3905L-I/SS: 24LD SSOP. b) Tape and Reel, MCP3905LT-I/SS: Industrial Temperature, 24LD SSOP. a) MCP3906A-I/SS: Industrial Temperature, 24LD SSOP. b) MCP3906AT-I/SS: Tape and Reel, Industrial Temperature, 24LD SSOP ...

Page 24

Page 25

... 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. ...

Page 26

... Fax: 886-3-572-6459 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 © 2006 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-3910 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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