MCP6544-I/SL Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP6544-I/SL is a quad push-pull voltage comparator from Microchip operating from 1.6 V supply with 100 nA input bias current and 7 mV input offset in a 14-pin SOIC package for low-voltage threshold detection.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP6544-I/SL Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3200(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/SL?
- 1.6 V minimum supply voltage enabling direct operation in single-cell Li-ion or 2-cell NiMH battery-powered systems without a boost regulator
- Quad push-pull output architecture — 4 independent comparators with rail-to-rail output swing — eliminating external pull-up resistors required by open-drain designs
- 100 nA maximum input bias current (IIB) supporting high-impedance sensor connections such as resistor-divider threshold networks without loading the reference
What is MCP6544-I/SL used for?
MCP6544-I/SL is suited for battery-powered systems requiring multiple voltage threshold detectors, such as Li-ion battery protection circuits, window comparator networks, and motor over-current protection in portable power tools. Its 1.6 V minimum supply covers the full discharge range of a single Li-ion cell, and 4 independent push-pull outputs simplify fan-out to digital logic without pull-up resistors. The 14-pin SOIC package integrates 4 comparator functions in a compact footprint replacing four discrete comparator ICs.
What are the specifications of MCP6544-I/SL?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-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 | SOP14,.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 | 0.004mA |
| 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 | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| 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 MCP6544-I/SL datasheet?
MCP6544-I/SL Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6544-I/SL?
Compatible alternatives and drop-in replacements for MCP6544-I/SL:
Frequently Asked Questions
For a Li-ion battery protection circuit, can MCP6544-I/SL monitor cell voltage down to the minimum discharge threshold?
Yes. MCP6544-I/SL operates from a 1.6 V minimum supply, which is below the typical 2.5 V minimum cutoff voltage for most Li-ion cells. As the cell discharges from 4.2 V to 2.7 V, MCP6544-I/SL continues operating and can trigger an overvoltage, undervoltage, or overcurrent comparator output. All 4 comparators are available simultaneously, allowing a single 14-pin SOIC IC to cover overvoltage, undervoltage, overcurrent, and temperature fault detection channels.
How does MCP6544-I/SL's push-pull output differ from open-drain comparators and when is it preferable?
MCP6544-I/SL's push-pull outputs actively drive both high and low states without requiring an external pull-up resistor. Open-drain comparators like LM393 require a pull-up resistor per channel, adding 4 resistors for a quad package. Push-pull outputs switch faster due to lower output impedance and consume no static power from pull-up resistors. They are preferred when driving CMOS logic inputs directly or when PCB space for discrete pull-up resistors is limited.
In a window comparator design using 2 of MCP6544-I/SL's 4 channels, what input offset voltage must be budgeted?
MCP6544-I/SL specifies a maximum input offset voltage of 7000 µV (7 mV). In a window comparator with upper and lower thresholds, each comparator contributes up to ±7 mV of threshold uncertainty. For a ±50 mV window around a 1.0 V reference, the 7 mV offset represents 14% of the window width — acceptable for coarse detection but too large for precision window comparisons. Designers needing tighter accuracy should consider a precision comparator with sub-1 mV offset.
What procurement risk should designers consider given MCP6544-I/SL's 26-week factory lead time?
MCP6544-I/SL carries a 26-week (approximately 6-month) factory lead time from Microchip Technology — significantly longer than the 6–10 week lead times typical for simpler analog ICs. This means procurement teams must place orders 6 months in advance or maintain safety stock. The 8-year YTEOL reduces end-of-life risk for multi-year programs, but the long lead time makes it critical to include MCP6544-I/SL in supply chain planning at the product design phase rather than at production launch.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3200 | $0.32 |
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