MCP6541T-E/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
The MCP6541T-E/OT is a single-channel push-pull output comparator from Microchip with rail-to-rail input/output operating from as low as 1.6 V. It features 5 nA maximum bias current and a 7 mV maximum input offset voltage in a tiny 5-pin SOT-23 package. Optimized for low-power threshold detection in battery-operated and IoT sensor applications.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP6541T-E/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2900(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP6541T-E/OT?
- Push-pull rail-to-rail output comparator operating from 1.6 V to 5.5 V supply, directly driving logic inputs without an external pull-up resistor
- Ultra-low 5 nA maximum input bias current enabling accurate threshold comparison against high-impedance resistive voltage dividers in battery-powered circuits
- Tiny 5-pin SOT-23 package with 7 mV maximum offset voltage and 1-week factory lead time providing fast procurement for high-volume portable device production
What is MCP6541T-E/OT used for?
The MCP6541T-E/OT is used in battery-powered IoT sensor nodes and wearable devices for low-power voltage threshold detection, such as monitoring a battery level crossing a 3.0 V or 2.8 V cutoff and signaling a microcontroller before power loss. Its push-pull output allows the comparator to drive CMOS logic inputs directly without an open-drain pull-up, simplifying the interface to 1.8 V or 3.3 V microcontrollers. The device also appears in overcurrent sense circuits, zero-crossing detectors, and window comparator configurations where minimum supply voltage and minimal quiescent current are design constraints.
What are the specifications of MCP6541T-E/OT?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 1Week |
| YTEOL | 8 |
| Amplifier Type | COMPARATOR |
| Average Bias Current-Max (IIB) | 0.005 µA |
| Input Offset Voltage-Max | 7000 µV |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Type | PUSH-PULL |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Response Time-Nom | 4000ns |
| Supply Current-Max | 0.001mA |
| Supply Voltage Limit-Max | 7V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP6541T-E/OT datasheet?
MCP6541T-E/OT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6541T-E/OT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the minimum supply voltage for the MCP6541T-E/OT, and can it operate from a single lithium coin cell?
The MCP6541T-E/OT operates from a minimum supply voltage of 1.6 V, which is below the nominal 3 V of a CR2032 coin cell and within the usable discharge range of most thin-film batteries. This means the comparator continues to function reliably even as the coin cell ages toward its end-of-life voltage near 2.0 V, making it well suited for low-power threshold detection circuits in IoT beacons, medical sensors, and asset trackers powered by small primary cells.
Why does the push-pull output of MCP6541T-E/OT simplify interfacing to a microcontroller compared to an open-drain comparator?
An open-drain comparator output requires an external pull-up resistor tied to the logic supply to actively pull the output high, whereas the MCP6541T-E/OT's push-pull output actively drives both logic high and logic low states without any external resistor. This eliminates 1 passive component per comparator channel, reduces propagation delay on the high-to-low and low-to-high transitions, and avoids the current draw through the pull-up resistor that would otherwise increase quiescent power consumption in a battery-operated design.
How does the 7 mV maximum offset voltage of MCP6541T-E/OT affect threshold accuracy in a battery low-voltage detection circuit?
If a battery low-voltage trip point is set at 2.8 V using a resistive divider, the 7 mV (7000 µV) worst-case offset translates to a trip-point error of roughly ±7 mV at the comparator input referred to the divider output. Depending on the divider ratio, this corresponds to a few tens of millivolts error at the battery terminals, acceptable for most battery cutoff applications but worth factoring into the resistor divider design to ensure the microcontroller shuts down before the battery drops below the minimum operating voltage of the rest of the system.
In which space-constrained product categories does the SOT-23-5 footprint of MCP6541T-E/OT provide an advantage?
The 5-pin SOT-23 package measures approximately 2.9 mm x 1.6 mm, making the MCP6541T-E/OT suitable for wearable fitness trackers, hearing aid PCBs, miniature wireless sensor nodes, and smartcard modules where board area is under 1 cm². Compared to an 8-pin SOIC single comparator, the SOT-23 footprint is roughly 70% smaller, allowing a designer to fit multiple threshold detection channels in the space that a single SOIC-8 would occupy.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4270 | $0.43 |
| 10+ | $0.3549 | $3.55 |
| 25+ | $0.3300 | $8.25 |
| 100+ | $0.3000 | $30.00 |
| 5000+ | $0.2900 | $1450.00 |
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