MCP6541-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP6541-I/SN is a single-channel rail-to-rail push-pull output comparator from Microchip operating from 1.6 V to 5.5 V with 0.1 nA typical input bias current and 7 mV maximum offset voltage in a SOIC-8 package. Delivers fast response time for battery, power-good, and threshold detection circuits. From $0.55 in stock worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP6541-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3500(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP6541-I/SN?
- 1.6 V minimum supply enables direct operation from a single alkaline cell or lithium-coin battery in ultra-low-voltage comparator threshold and power-good circuits
- Push-pull CMOS output swings rail-to-rail from 0 V to VCC without a pull-up resistor, simplifying interfacing to MCU digital inputs and reducing external component count
- 0.1 nA typical input bias current (0.1 µA max) minimizes loading on high-impedance resistive dividers and capacitive sensors in battery monitoring and wake-up circuits
What is MCP6541-I/SN used for?
MCP6541-I/SN is used in battery-powered systems as a low-voltage threshold detector, power-good indicator, and zero-crossing detector where the 1.6 V to 5.5 V operating range supports direct connection to single-cell lithium and alkaline batteries. Its rail-to-rail push-pull output feeds directly into MCU digital input pins without a pull-up resistor, making it a simple and cost-effective signal-conditioning block in smoke detectors, wireless sensors, and battery chargers. The device also fits overcurrent comparators and window comparator circuits in power management modules where the 7 mV maximum offset voltage and 0.1 nA bias current maintain precise switching thresholds.
What are the specifications of MCP6541-I/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 7Weeks |
| YTEOL | 8 |
| Amplifier Type | COMPARATOR |
| Average Bias Current-Max (IIB) | 0.0001 µA |
| Input Offset Voltage-Max | 7000 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Type | PUSH-PULL |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| 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 | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| ## MCP6541-I/SN Alternates Showing results | Image |
| Package | Small Outline Packages |
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 MCP6541-I/SN datasheet?
MCP6541-I/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6541-I/SN?
Compatible alternatives and drop-in replacements for MCP6541-I/SN:
Comparator, 1 Func, 8000uV Offset-Max, 4000ns Response Time, CMOS, PDSO8
Comparator, 1 Func, 18000uV Offset-Max, 4000ns Response Time, CMOS, PDSO8
suggested
suggested
suggested
suggested
Comparator, 1 Func, 7000uV Offset-Max, 4000ns Response Time, CMOS, PDSO8
Frequently Asked Questions
What is the minimum supply voltage of MCP6541-I/SN, and which battery chemistries does it directly support?
MCP6541-I/SN operates from as low as 1.6 V, allowing direct connection to a single lithium coin cell (nominal 3.0 V, discharge end 2.0 V), a NiMH cell (1.0–1.5 V with a small boost to 1.6 V), or a fully discharged alkaline AA cell, covering nearly all primary and rechargeable single-cell battery chemistries used in portable consumer and IoT devices.
How does the push-pull output of MCP6541-I/SN simplify interfacing compared to open-drain comparators?
The push-pull CMOS output actively drives both logic-high (to VCC) and logic-low (to GND) states, eliminating the mandatory external pull-up resistor that open-drain comparators require; this removes a resistor from the BOM, reduces propagation delay to the MCU input by avoiding RC time-constant effects, and ensures the output reaches the MCU logic threshold even at 1.6 V supply where a high-value pull-up resistor would slow the edge.
For a battery fuel-gauge circuit, how does the 0.1 nA bias current of MCP6541-I/SN affect resistive divider accuracy?
With an average input bias current of 0.0001 µA (0.1 nA) maximum, MCP6541-I/SN introduces less than 0.1 mV of offset error even across a 1 MΩ resistive divider, which is negligible compared to the 7 mV maximum input offset voltage; this allows designers to use high-resistance dividers above 500 kΩ to minimize quiescent current in sub-1 µA battery monitoring circuits.
How does MCP6541-I/SN compare to LM393 in a 3.3 V system regarding output compatibility?
LM393 has an open-drain output that requires a pull-up resistor to 3.3 V and its output falls only to about 0.5 V at 1 mA sink current, while MCP6541-I/SN's push-pull CMOS output swings fully rail-to-rail (within 5 mV of VCC and GND), providing a clean 0–3.3 V digital signal compatible with 3.3 V MCU I/O without any additional passive components.
In a compact PCB layout, what advantage does the SOIC-8 package of MCP6541-I/SN offer over DIP-8?
The SOIC-8 (R-PDSO-G8) package has a 1.27 mm pitch and a body area of approximately 19.9 mm², roughly 60% smaller than a DIP-8 package at about 51 mm², enabling placement in tight power-management sub-circuits on 2-layer boards with 0.15 mm minimum trace width, and supporting standard SMT reflow assembly at 260°C peak temperature.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4700 | $0.47 |
| 5+ | $0.4320 | $2.16 |
| 10+ | $0.4140 | $4.14 |
| 25+ | $0.3900 | $9.75 |
| 100+ | $0.3600 | $36.00 |
| 5000+ | $0.3500 | $1750.00 |
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