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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| 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 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”