THE RESISTOR ARRAY VALUES ARE 5000 OHM,10000 OHM, 50000 OHM
Bandwidth-Nom:
2 kHz
Control Interface:
2-WIRE SERIAL
Converter Type:
DIGITAL POTENTIOMETER
JESD-30 Code:
S-PQCC-N20
JESD-609 Code:
e3
Length:
4 mm
Moisture Sensitivity Level:
1
Number of Functions:
4
Number of Positions:
257
Number of Terminals:
20
Operating Temperature-Max:
125 °C
Operating Temperature-Min:
-40 °C
Package Body Material:
PLASTIC/EPOXY
Package Code:
HVQCCN
Package Equivalence Code:
LCC20,.16SQ,20
Package Shape:
SQUARE
Package Style:
CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Resistance Law:
LINEAR
Resistance Tolerance-Max:
20%
Resistor Terminal Voltage-Max:
5.5 V
Screening Level:
TS 16949
Seated Height-Max:
1 mm
Supply Current-Max:
0.6 mA
Supply Voltage-Nom:
3 V
Surface Mount:
YES
Technology:
CMOS
Temperature Coefficient-Nom:
150 ppm/°C
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Matte Tin (Sn)
Terminal Form:
NO LEAD
Terminal Pitch:
0.5 mm
Terminal Position:
QUAD
Total Resistance-Nom:
100000 Ω
Width:
4 mm
MCP4431-503E/ML Frequently Asked Questions (FAQs)
Microchip provides a recommended PCB layout in the MCP4431 datasheet, which includes guidelines for component placement, routing, and thermal management. Additionally, Microchip's application note AN1348 provides more detailed information on PCB layout considerations for digital potentiometers.
To ensure reliable communication, follow the I2C bus specifications, use a pull-up resistor on the SCL and SDA lines, and ensure that the clock frequency is within the recommended range (100 kHz to 400 kHz). Also, use a buffer or repeater if the bus is long or has multiple devices.
The maximum power dissipation of the MCP4431-503E/ML is 1.5 W. To manage heat dissipation, use a thermal pad or heat sink, and ensure good airflow around the device. The device's thermal resistance (θJA) is 60°C/W, which can help estimate the junction temperature.
The MCP4431-503E/ML is a QFN package device, which is suitable for most industrial and commercial applications. However, for high-vibration or high-shock environments, consider using a device with a more robust package, such as a QFN with an exposed thermal pad or a ceramic package. Additionally, follow proper PCB design and assembly practices to ensure reliability.
The MCP4431-503E/ML has built-in error detection mechanisms, such as a watchdog timer and a brown-out detector. Implement fault detection and error handling by monitoring the device's status registers, using the watchdog timer to detect faults, and implementing software-based error handling routines.
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MCP4431-503E/ML Overview
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About Microchip
Microchip Technology Inc. is a leading manufacturer of microcontrollers and semiconductor devices for a wide range of applications in the aerospace, automotive, consumer electronics, industrial, and medical industries. Alongside a comprehensive product portfolio, Microchip Technology Inc. also provides easy-to-use development tools that enable engineers to create optimal designs quickly with minimal iterations to reduce risk while lowering total system costs to market. Headquartered in Chandler, Arizona, th
