MCP41HV51-104E/MQ Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
The MCP41HV51-104E/MQ is an 8-bit single-channel digital potentiometer with 100 kΩ end-to-end resistance, 256 wiper positions, SPI control, and a compact QFN-20 package. Operates on high-voltage rails for industrial signal conditioning.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP41HV51-104E/MQ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.3100(MOQ 73)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit resolution with 256 wiper positions and 100 kΩ end-to-end resistance for fine analog adjustment
- 3-wire SPI serial interface enables direct microcontroller control with minimal I/O pin usage in QFN-20 footprint
- High-voltage tolerant design supports wide supply rails suitable for industrial 5 V and higher signal-chain applications
Applications
The MCP41HV51-104E/MQ suits gain-control and offset-trimming circuits in industrial instrumentation where an 8-bit 100 kΩ digitally controlled potentiometer replaces a mechanical trimmer. It is also used in audio volume control stages, programmable filter networks, and calibration DAC circuits where the 3-wire SPI interface and 256-step resolution provide precise, repeatable adjustment from an MCU without analog operator intervention.
Specifications
| Manufacturer Package Code | QFN-20 |
| Factory Lead Time | 6Weeks |
| YTEOL | 13 |
| Bandwidth-Nom | 0.48kHz |
| Control Interface | 3-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PQCC-N20 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 256 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC20,.20SQ,25 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 18V |
| Resistor Terminal Voltage-Min | -5 V |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.3mA |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Temperature Coefficient-Nom | 100ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Total Resistance-Nom | 100000Ω |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does the MCP41HV51-104E/MQ provide, and what end-to-end resistance does it offer?
The MCP41HV51-104E/MQ provides 256 discrete wiper positions across a 100 kΩ end-to-end resistance, giving an ideal step resolution of approximately 392 Ω per step. This fine-grain control suits precision gain and offset trimming in signal-conditioning circuits where a mechanical potentiometer would drift over temperature and vibration.
Which control interface does the MCP41HV51-104E/MQ use, and how does it connect to a microcontroller?
It uses a 3-wire SPI serial interface (CS, SCK, SDI) that maps directly to any MCU SPI peripheral using only 3 I/O pins. The QFN-20 package keeps the PCB footprint small at roughly 4 mm × 4 mm, making it easy to integrate alongside a microcontroller on a compact measurement board.
What bandwidth limitation should designers consider when using the MCP41HV51-104E/MQ in AC signal paths?
The part has a rated bandwidth of approximately 0.48 kHz, meaning it is best suited for DC trimming, low-frequency audio level control, or slow analog calibration loops rather than high-frequency signal switching. For applications above a few hundred hertz, a higher-bandwidth digital pot would be required to avoid signal attenuation.
How does the volatile wiper storage of the MCP41HV51-104E/MQ affect system design at power-up?
Because the wiper position is stored in volatile RAM, it resets to the mid-scale position (128 out of 256 steps, equivalent to 50 kΩ) every time power is cycled. Designers must load the desired wiper value via SPI during firmware initialization. For applications requiring a specific power-up resistance without an MCU, a non-volatile variant with EEPROM storage should be considered instead.
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