Microchip MCP39F521 Bruksanvisning


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2015 Microchip Technology Inc. DS20005442A-page 1
MCP39F521
Features
Power Monitoring Accuracy Capable of 0.1%
Error Across 4000:1 Dynamic Range
Built-In Calculations on Fast 16-bit Processing
Core
- Active, Reactive, Apparent Power
- True Root Mean Square (RMS) Current,
RMS Voltage
- Line Frequency, Power Factor
64-bit Wide Import and Export Active Energy
Accumulation Registers
64-bit Four Quadrant Reactive Energy
Accumulation Registers
Signed Active and Reactive Power Outputs
Dedicated Zero Crossing Detection (ZCD) Pin
Output with Less than 100 µs Latency
Automatic Event Pin Control through Fast Voltage
Surge Detection, Less than 5 ms Delay
• I2C Interface, up to 400 kHz Clock Rate
Two Independent Registers for Minimum and
Maximum Output Quantity Tracking
Fast Calibration Routines and Simplified
Command Protocol
512 Bytes User-Accessible EEPROM through
Page Read/Write Commands
Low-Drift Internal Voltage Reference,
10 ppm/°C Typical
28-lead 5 x 5 mm QFN Package
Extended Temperature Range -40°C to +125°C
Applications
Power Monitoring for Home Automation
Industrial Lighting Power Monitoring
Real-Time Measurement of Input Power for
AC/DC Supplies
Intelligent Power Distribution Units
Description
The MCP39F521 is a highly integrated, complete
single-phase power-monitoring device, designed for
real-time measurement of input power for AC/DC
power supplies, power distribution units, consumer and
industrial applications. It includes dual-channel
delta-sigma ADCs, a 16-bit calculation engine,
EEPROM and a flexible two-wire I2C interface.
An integrated low-drift voltage reference with
10 ppm/°C in addition to 94.5 dB of signal-to-noise and
distortion ratio (SINAD) performance on each
measurement channel allows for better than 0.1%
accurate designs across a 4000:1 dynamic range.
Package Types
1
25
2
3
4
5
8 9 10 11 12
20
18
17
28 27 26 24
EVENT
NC
COMMONB
COMMONA
NC
NC
NC
AVDD
A0
RESET
DVDD
DGND
MCLR
EP
29
6
7
OSCI
OSCO
13 14
SCL
SDA
16
15
23 22
REFIN+/OUT
ZCD
I1+
I1-
V1-
V1+
AN_IN
AGND
DGND
A1
DR
MCP39F521
5x5 QFN*
*Includes Exposed Thermal Pad (EP); see Table 3-1.
19
21
I2C Power Monitor with Calculation and Energy Accumulation


Produktspecifikationer

Varumärke: Microchip
Kategori: Inte kategoriserad
Modell: MCP39F521

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