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  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP39F501 Datasheet

Power-Monitoring IC

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MCP39F501
Single-Phase, Power-Monitoring IC with Calculation and Event Detection
Features:
• Power Monitoring Accuracy capable of 0.1% error
across 4000:1 dynamic range
• Fast Calibration Routines
• Programmable Event Notifications such as over-
current and voltage sag, surge protection
• 512 bytes User-accessible EEPROM through
page read/write commands
• Non-volatile On-chip Memory, no external
memory required
• Built-in calculations on fast 16-bit processing core
- Active, Reactive and Apparent Power
- True RMS Current, RMS Voltage
- Line Frequency, Power Factor
• Two-Wire Serial Protocol using a 2-wire Universal
Asynchronous Receiver/Transmitter (UART) inter-
face supporting multiple devices on a single bus
• Low-Drift Internal Voltage Reference, 10 ppm/°C
typical
• 28-lead 5x5 QFN package
• Extended Temperature Range -40°C to +125°C
Applications:
• Real-time Measurement of Input Power for
AC/DC supplies
• Intelligent Power Distribution Units
Functional Block Diagram
OSCI
Timing
Generation
AVDD AGND
OSCO
I1+
+PGA
-
I1-
V1+
+PGA
-
V1-
Internal
Oscillator
24-bit Delta Sigma
Multi-level
Modulator ADC
24-bit Delta Sigma
Multi-level
Modulator ADC
AN_IN/DIO2
10-bit SAR
ADC
Description:
The MCP39F501 is a highly integrated, single-phase
power-monitoring IC designed for real-time
measurement of input power for AC/DC power
supplies, power distribution units and industrial
applications. It includes dual-channel delta sigma
ADCs, a 16-bit calculation engine, EEPROM and a
flexible 2-wire interface. An integrated low-drift voltage
reference with 10 ppm/°C in addition to 94.5 dB of
SINAD performance on each measurement channel
allows for better than 0.1% accurate designs across a
4000:1 dynamic range.
Package Type
MCP39F501
5x5 QFN*
28 27 26 25 24 23 22
MODE/DIR 1
21 AGND
NC 2
20 AN_IN/DIO2
NC 3
UART_RX 4
COMMONA 5
19 V1+
EP 18 V1-
29
17 I1-
OSCI 6
16 I1+
OSCO 7
15 A1/DIO1
8 9 10 11 12 13 14
* Includes Exposed
Thermal Pad (EP); see Table 3-1.
DVDD DGND
16-BIT
CORE
FLASH
Calculation
Engine
(CE)
UART
Serial
Interface
Configurable
Digital Outputs
UART_TX
UART_RX
MODE/DIR
A0/DIO0
A1/DIO1
AN_IN/DIO2
DIO3
2013 Microchip Technology Inc.
DS20005256A-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP39F501 Datasheet

Power-Monitoring IC

No Preview Available !

MCP39F501
MCP39F501 Typical Application – Single Phase, Two-Wire Application Schematic
+3.3V
10
LOAD
1 µF
0.1 µF
0.1 µF
+
0.5 m
1 m
-
2 m
4 m
1 k
33 nF
1 k
33 nF
AVDD DVDD RESET
REFIN/OUT+
I1+
UART_TX
I1-
0.1 µF
to MCU UART
1 k
V1-
UART_RX
33 nF
720 k
MCP39F501
V1+
1 k
33 nF
MODE/DIR
N.C.
Leave Floating
Connect on PCB
+3.3V
NC
NC
NC
NC
DR
COMMONA,B
A0/DIO0
A1/DIO1
DIO3
MCP9700A
TEMPIN/DIO2
DIO2
to MCU UART
(OPTIONAL)
Address setting for multiple devices
or
Alarm with Event Functions
22 pF
4 MHz
22 pF
OSCO
OSCI DGND
AGND
(OPTIONAL)
0.47 µ F 470
0.01 µF
NL
DGND
MCP1754
470 µF
+3.3V
AGND
DS20005256A-page 2
2013 Microchip Technology Inc.


Part Number MCP39F501
Description Power-Monitoring IC
Maker Microchip
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