MCP4641-103E/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip MCP4641-103E/ML is a dual-circuit 10 kOhm digital potentiometer with 129 taps, I2C interface, non-volatile memory, and 1 kHz bandwidth in a compact QFN-16 package for programmable resistance and voltage adjustment applications.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- MCP4641-103E/ML Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual 10 kOhm potentiometer circuits with 129 tap positions for precise 7-bit resistance control
- Non-volatile memory retains wiper position through power cycles without software re-initialization
- I2C interface with increment/decrement control simplifying host MCU integration
- Compact QFN-16 4x4 mm package enabling high-density mixed-signal PCB designs
Applications
The MCP4641-103E/ML is used in programmable gain amplifiers, voltage reference adjustment circuits, and sensor calibration systems where non-volatile resistance settings must survive power-off events. Its dual 10 kOhm channels with 129 steps allow fine-grained control of analog parameters such as LCD contrast, audio volume, and LED brightness in consumer electronics. The I2C interface and QFN-16 package make it straightforward to integrate into compact industrial controllers and medical instrumentation.
Specifications
| Pbfree Code | Yes |
| YTEOL | 5.95 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 1kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PQCC-N16 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC16,.16SQ,25 |
| 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 | 5.5V |
| Supply Voltage-Nom | 2.7V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°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 | 10000Ω |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP4641-103E/ML:
Frequently Asked Questions
How does the non-volatile memory in the MCP4641-103E/ML benefit systems that lose power unexpectedly?
The non-volatile memory in the MCP4641-103E/ML stores the current wiper position across both 10 kOhm potentiometer circuits, so resistance settings are retained after a power cycle without requiring the host MCU to reinitialize the device. This is critical in calibration-sensitive applications like sensor trim circuits, programmable gain stages, and LCD contrast adjustment, where re-applying 129-step tap settings at every boot would slow startup time and risk incorrect analog behavior.
How many discrete resistance steps can the MCP4641-103E/ML resolve, and how does this translate to adjustment precision for a 10 kOhm pot?
With 129 tap positions across a 10 kOhm end-to-end resistance, each step of the MCP4641-103E/ML represents approximately 77.5 Ohm of resolution. This granularity is sufficient for voltage divider circuits, programmable gain amplifiers, and audio volume controls where fine analog tuning is needed, and the I2C increment/decrement interface allows software to step through positions under tight digital control.
Can the MCP4641-103E/ML be used to adjust output voltage in a DC-DC converter feedback loop?
Yes, by placing one of the dual 10 kOhm channels in the feedback resistor divider of a DC-DC converter, the MCP4641-103E/ML can digitally trim output voltage in real time over I2C. Each of the 129 steps shifts the feedback ratio by approximately 77.5 Ohm, enabling fine voltage trimming across the converter's programmable range, while non-volatile memory locks in the setpoint so the regulator powers up at the correct voltage without MCU intervention.
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