Microchip MCP3905 Handleiding

Microchip Niet gecategoriseerd MCP3905

Lees hieronder de 📖 handleiding in het Nederlandse voor Microchip MCP3905 (30 pagina's) in de categorie Niet gecategoriseerd. Deze handleiding was nuttig voor 34 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

Download PDF

Pagina 1/30

MCP3905/06

Features

• Supplies active (real) power measurement for

single-phase, residential energy-metering

• Supports the IEC 62053 International Energy

Metering Specification and legacy IEC 1036/

61036/687 Specifications

• Two multi-bit, Digital-to-Analog Converters

(DACs), second-order, 16-bit, Delta-Sigma

Analog-to-Digital Converters (ADCs)

• 0.1% typical measurement error over 500:1

dynamic range (MCP3905)

• 0.1% typical measurement error over 1000:1

dynamic range (MCP3906)

• Programmable Gain Amplifier (PGA) for small-

signal inputs supports low-value shunt current

sensor

-16:1 PGA - MCP3905

-32:1 PGA - MCP3906

• Ultra-low drift on-chip reference: 15 ppm/°C

(typical)

• Direct drive for electromagnetic mechanical

counter and two-phase stepper motors

• Low IDD of 4 mA (typical)

• Tamper output pin for negative power indication

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

• Supplies instantaneous active (real) power on

HFOUT for meter calibration

US Patents Pending

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. They include two 16-bit, delta-sigma ADCs

for a wide range of IB and IMAX currents and/or small

shunt (< 200 µOhms) meter 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. Strong

output drive for mechanical counters are on-chip to

reduce field failures and mechanical counter sticking. A

no-load threshold block prevents any current creep

measurements. A Power-On Reset (POR) block

restricts meter performance during low-voltage

situations. These accurate energy-metering ICs with

high field reliability are available in the industry-

standard pinout.

Package Type

Functional Block Diagram

FOUT0

DGND

NEG

FOUT1

OSC2

OSC1

DVDD

HPF

AVDD

CH0+

CH0-

CH1-

CH1+

HFOUT

9G0

MCLR

REFIN/OUT

AGND

1312 F1

24-Pin SSOP

16-bit

ΔΣ ADC

MCLR

–

CH0+

CH0-

Reference

2.4V

–

CH1+

CH1-

HPF1

LPF1 E-to-F

conversion

REFIN/

FOUT1

HFOUT

G0 G1

F2 F1

FOUT0

OSC1 OSC2

OUT

NEG

HPF

Multi-level

16-bit

ΔΣ ADC

Multi-level

HPF1

PGA

POR

Energy-Metering ICs with Active (Real) Power Pulse Output

Obsolete Device

Replacement Device:

MCP3905A/MCP3906A

MCP3905/06

NOTES:

MCP3905/06

1.0 ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

VDD...................................................................................7.0V

Digital inputs and outputs w.r.t. A

GND........ -0.6V to VDD +0.6V

Analog input w.r.t. AGND..................................... ....-6V to +6V

VREF input w.r.t. AGND.............................. -0.6V to V

DD +0.6V

Storage temperature .....................................-65°C to +150°C

Ambient temp. with power applied ................-65°C to +125°C

Soldering temperature of leads (10 seconds) ............. +300°C

ESD on the analog inputs (HBM,MM).................5.0 kV, 500V

ESD on all other pins (HBM,MM)........................5.0 kV, 500V

† Notice: Stresses above those listed under "Maximum

Ratings" may cause permanent damage to the device. This is

a stress rating only and functional operation of the device at

those or any other conditions above those indicated in the

operation listings of this specification is not implied. Exposure

to maximum rating conditions for extended periods may affect

device reliability.

ELECTRICAL CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, all parameters apply at AV

= DVDD = 4.5V – 5.5V,

Internal VREF

, HPF turned on (AC mode), AGND, DGND = 0V, MCLK = 3.58 MHz; TA

= -40°C to +85°C.

Parameter Sym Min Typ. Max Units Comment

Overall Measurement Accuracy

Energy Measurement Error E — 0.1 — % FOUT Channel 0 swings 1:500 range,

MCP3905 only (Note 1, Note 4)

— 0.1 — % FOUT Channel 0 swings 1:1000 range,

MCP3906 only (Note 1, Note 4)

No-Load Threshold/

Minimum Load

NLT — 0.0015 — % FOUT

Max.

Disabled when F2, F1, F0 = 0, 1, 1

( )Note 5, Note 6

Phase Delay Between

Channels

— — 1/MCLK s HPF = 0 and 1, < 1 MCLK

( )Note 4, Note 6, Note 7

AC Power Supply

Rejection Ratio

(Output Frequency Variation)

AC PSRR — 0.01 — % FOUT F2, F1, F0 = 0, 1, 1 (Note 3)

DC Power Supply

Rejection Ratio

(Output Frequency Variation)

DC PSRR — 0.01 — % FOUT HPF = 1, Gain = 1 (Note 3)

System Gain Error — 3 10 % FOUT Note 2, Note 5

ADC/PGA Specifications

Offset Error VOS — 2 5 mV Referred to Input

Gain Error Match — 0.5 — % FOUT Note 8

Internal Voltage Reference

Voltage — 2.4 — V

Tolerance — ±2 — %

Tempco — 15 — ppm/°C

Note 1: Measurement error = (Energy Measured By Device - True Energy)/True Energy * 100%. Accuracy is

measured with signal (±660 mV) on Channel 1. FOUT0, FOUT1 pulse outputs. Valid from 45 Hz to 65 Hz.

See Section 2.0 “Typical Performance Curves” for higher frequencies and increased dynamic range.

2: Does not include internal VREF. Gain = 1, CH0 = 470 mVDC, CH1 = 660 mVDC, difference between

measured output frequency and expected transfer function.

3: Percent of HFOUT output frequency variation; Includes external V

REF = 2.5V, CH1 = 100 mVRMS @

50 Hz, CH2 = 100 mVRMS @ 50 Hz, AVDD = 5V + 1V

pp @ 100 Hz. DC PSRR: 5V ±500 mV.

4: Error applies down to 60° lead (PF = 0.5 capacitive) and 60° lag (PF = 0.5 inductive).

5: Refer to Section 4.0 “Device Overview” for complete description.

6: Specified by characterization, not production tested.

7: 1 MCLK period at 3.58 MHz is equivalent to less than <0.005 degrees at 50 or 60 Hz.

8: Gain error match is measured from CH0 G = 1 to any other gain setting.

Product specificaties

Merk:	Microchip
Categorie:	Niet gecategoriseerd
Model:	MCP3905

Heb je hulp nodig?

Als je hulp nodig hebt met Microchip MCP3905 stel dan hieronder een vraag en andere gebruikers zullen je antwoorden

Uw naam*

Jouw email*

Schrijf hier uw vraag

Handleiding Niet gecategoriseerd Microchip

Microchip EVB-USB2504 Handleiding

17 November 2024

Microchip AT97SC3204 Handleiding

17 November 2024

Microchip ATECC608B Handleiding

16 Juli 2024

Microchip HV860 Handleiding

16 Juli 2024

Microchip EVB-LAN9255 Handleiding

16 Juli 2024

Microchip LX4580 Handleiding

16 Juli 2024

Microchip LX7720 Handleiding

16 Juli 2024

Microchip AT32UC3C0128C Handleiding

10 April 2024

Microchip AT32UC3C1512C Handleiding

10 April 2024

Microchip AT32UC3A3256 Handleiding

10 April 2024

Handleiding Niet gecategoriseerd

Nieuwste handleidingen voor Niet gecategoriseerd

Livarno Lux IAN 071407 Handleiding

29 November 2024

Livarno Lux IAN 317128 Handleiding

29 November 2024

Livarno Lux IAN 049213 Handleiding

29 November 2024

Livarno Lux ST-1002 Handleiding

29 November 2024

Livarno Lux HG02489 Handleiding

29 November 2024

Livarno Lux HG02189 Handleiding

29 November 2024

Livarno Lux IAN 365198 Handleiding

29 November 2024

Livarno Lux IAN 367074 Handleiding

29 November 2024

Livarno Lux HG00701 Handleiding

29 November 2024

Livarno Lux IAN 337273 Handleiding

29 November 2024