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Product Detailed Parameters
- Description：IC DGT POT 100KOHM 128TAP SC70-6
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Taper：Linear
- Configuration：Rheostat
- Number of Circuits：1
- Number of Taps：128
- Resistance (Ohms)：100k
- Interface：I2C
- Memory Type：Volatile
- Voltage - Supply：1.8V ~ 5.5V
- Features：-
- Tolerance：±20%
- Temperature Coefficient (Typ)：150ppm/°C
- Mounting Type：Surface Mount
- Supplier Device Package：SC-70-6
- Package / Case：6-TSSOP, SC-88, SOT-363
- Operating Temperature：-40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ)：155
- Grade：-
- Qualification：-
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Overview
The MCP4017T-104E/LT is a single-channel digital potentiometer manufactured by Microchip Technology, featuring a 7-bit resolution with 128 discrete wiper steps. It utilizes an I²C serial interface for control and operates within a supply voltage range of 1.8V to 5.5V. The device offers a nominal end-to-end resistance (RAB) of 100kΩ with a ±20% tolerance. Key electrical characteristics include a typical wiper resistance of 100Ω, a low static current consumption of 2.5µA, and operation across an extended temperature range from -40°C to +125°C. It employs volatile RAM memory and defaults to mid-scale upon power-up.
Feature Summary
- 7-bit resolution providing 128 distinct resistance steps via I²C interface
- Configurable as a rheostat or potentiometer in a compact SC70-6 package
- Low power consumption with 2.5µA typical static current
- Extended operating voltage range from 1.8V to 5.5V
Applications
- Volume control in audio systems
- Voltage adjustment circuits
- Sensor calibration
- Bias level regulation in analog signal processing
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'LT' corresponds to the SC70-6 tape and reel packaging variant. Ensure compatibility with system voltage levels and I²C bus speeds before integration.
Selection Notes
Select this model when a single-channel digital resistor with I²C control is required. The 100kΩ resistance value suits high-impedance applications. Consider the volatile memory nature; if non-volatile storage is needed, evaluate alternative models like the MCP41 series. Verify that the SC70-6 footprint fits the PCB layout constraints.
Part Context
This component belongs to the MCP4017/18/19 family of 7-bit digital potentiometers. While the MCP4018 offers potentiometer configuration and the MCP4019 uses a 5-pin package, the MCP4017 specifically supports rheostat configurations in a 6-pin SC70 package. All variants share similar electrical specifications and I²C communication protocols.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate other Microchip digital potentiometers with matching I²C interfaces and resistance values if replacement is necessary.
FAQ
What is the default wiper position after power-up?
The device defaults to the mid-scale position (3Fh hex) upon power-up.
Does the MCP4017T-104E/LT retain settings after power loss?
No, it uses volatile RAM memory, so the wiper setting is lost when power is removed.
What is the maximum I²C clock frequency supported?
It supports standard mode up to 100 kHz and fast mode up to 400 kHz.
