MCP6544-I/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP6544-I/ST is a quad push-pull output voltage comparator from Microchip with a 100 fA maximum input bias current and 7 mV maximum offset voltage. It operates from 1.8 V to 5.5 V and is packaged in a 14-pin TSSOP for high-density PCBs.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP6544-I/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8660(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 MCP6544-I/ST?
- Quad comparator configuration with push-pull (CMOS) output stage eliminates the need for pull-up resistors required by open-drain alternatives, reducing external component count in multi-channel threshold detection circuits
- Ultra-low input bias current of 100 fA maximum ensures accurate threshold comparisons even when driven from megaohm-range sources such as resistive voltage dividers or high-impedance sensor outputs
- Wide single-supply operating range from 1.8 V to 5.5 V with rail-to-rail input stage enables use in both 3.3 V microcontroller I/O systems and legacy 5 V designs without level-shifting
What is MCP6544-I/ST used for?
The MCP6544-I/ST is used in battery management systems, power supply supervisory circuits, and motor-control logic interfaces that need multiple voltage threshold detectors in a single compact package. Its push-pull output drives digital logic inputs directly at logic-compatible levels without external pull-up resistors, simplifying PCB routing on 3.3 V and 5 V digital platforms. The device is also effective in over-current, over-voltage, and window comparator protection circuits in industrial equipment, where 4 independent comparator channels in one 14-pin TSSOP minimize footprint and routing complexity.
What are the specifications of MCP6544-I/ST?
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 26Weeks |
| YTEOL | 8 |
| Amplifier Type | COMPARATOR |
| Average Bias Current-Max (IIB) | 0.0001 µA |
| Input Offset Voltage-Max | 7000 µV |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 4 |
| Output Type | PUSH-PULL |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Response Time-Nom | 4000ns |
| Supply Current-Max | 0.004mA |
| 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 | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| ## MCP6544-I/ST 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 | Malaysia, Thailand |
Where can I find the MCP6544-I/ST datasheet?
MCP6544-I/ST Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6544-I/ST?
Compatible alternatives and drop-in replacements for MCP6544-I/ST:
suggested
suggested
suggested
suggested
suggested
Comparator, 4 Func, 7000uV Offset-Max, 4000ns Response Time, CMOS, PDSO14
Frequently Asked Questions
How does the push-pull output of MCP6544-I/ST differ from open-drain comparator outputs?
Unlike open-drain outputs that require an external pull-up resistor to define the high logic level, the MCP6544-I/ST's push-pull CMOS output actively drives both high and low states. This eliminates the need for 4 external resistors in a quad-channel design, reduces power consumption from resistor pull-up currents, and delivers faster rising edges especially when driving capacitive digital inputs above 50 pF.
What input offset voltage does MCP6544-I/ST specify, and how does that affect threshold accuracy?
The MCP6544-I/ST specifies a maximum input offset voltage of 7 mV (7000 µV). For a 3.3 V system with a trip threshold set at 1.65 V, this 7 mV offset contributes a worst-case threshold error of only 0.4%, which is acceptable for battery low-voltage detection, over-temperature warning, and similar supervisory functions where millivolt-level precision is sufficient.
What supply voltage does MCP6544-I/ST require, and is it compatible with 3.3 V microcontroller systems?
The MCP6544-I/ST operates from 1.8 V to 5.5 V, covering both 3.3 V and 5 V logic supply rails directly. Its output swings within a few millivolts of both supply rails, ensuring that the high output exceeds the VIH threshold of 3.3 V CMOS inputs and the low output falls below the VIL threshold without an intermediate voltage translator.
For a 4-channel window comparator design, how does MCP6544-I/ST reduce board area compared to discrete comparators?
A 4-channel window comparator typically needs 8 comparator inputs for upper and lower bounds across 4 signals. The MCP6544-I/ST provides all 4 comparator channels in a single 14-pin TSSOP package measuring approximately 5 mm × 4.4 mm, compared to four individual 5-pin SOT-23 comparators occupying roughly four times the footprint—an area saving of more than 50% on a dense PCB.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.3100 | $1.31 |
| 25+ | $1.0900 | $27.25 |
| 100+ | $0.9900 | $99.00 |
| 5000+ | $0.9800 | $4900.00 |
| 5088+ | $0.8740 | $4446.91 |
| 7584+ | $0.8660 | $6567.74 |
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