MCP6549-I/SL Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP6549-I/SL is a quad open-drain voltage comparator operating from 1.6V supply with 0.1 nA maximum input bias current in a SOIC-14 package. Features 4 independent comparator channels with 7 mV maximum input offset voltage for threshold detection in low-voltage systems. Available in stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP6549-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 MCP6549-I/SL?
- Quad open-drain comparator operating from 1.6 V minimum supply with 0.1 nA maximum input bias current for ultra-low-power level detection
- 4 independent comparator channels in a 14-pin SOIC package enable multi-threshold window detection without additional external comparators
- Open-drain outputs support wired-OR bus configurations and direct interface to 3.3 V or 5 V logic rails from a lower-voltage analog supply
What is MCP6549-I/SL used for?
MCP6549-I/SL is used in battery-powered devices, portable instruments, and IoT nodes requiring simultaneous multi-channel threshold detection from a 1.6V or higher supply. Its 4 open-drain outputs are ideal for over-voltage, under-voltage, window comparator, and fault-flag circuits in power management and battery monitoring systems. Industrial sensor interfaces and white-goods controllers also use it for cost-effective multi-level signal detection with wired-OR output sharing.
What are the specifications of MCP6549-I/SL?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-14 |
| Factory Lead Time | 9Weeks |
| 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 | OPEN-DRAIN |
| 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 | 3000ns |
| Screening Level | TS 16949 |
| 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 MCP6549-I/SL datasheet?
MCP6549-I/SL Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6549-I/SL?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low a supply voltage can MCP6549-I/SL operate from, and how many comparator channels does it provide?
MCP6549-I/SL operates from a minimum supply of 1.6 V and provides 4 independent comparator channels in a single SOIC-14 package, making it one of the lowest supply-voltage quad comparators available for multi-threshold detection in battery-operated designs.
What is the maximum input offset voltage of MCP6549-I/SL and how does it affect threshold accuracy?
MCP6549-I/SL has a 7000 µV (7 mV) maximum input offset voltage, which sets the minimum detectable voltage difference at the comparator inputs. For tight threshold windows below 10 mV, this offset can cause false triggering, so designers should either widen the hysteresis band or select a lower-offset comparator such as MCP6541 (4 mV max offset).
How do the open-drain outputs of MCP6549-I/SL simplify fault-flag sharing in power management circuits?
Open-drain outputs allow all 4 MCP6549 comparator channels to share a single pull-up resistor on a common fault-flag wire using wired-OR logic. Any channel detecting an out-of-range voltage pulls the shared line low, alerting the host microcontroller to a fault condition without requiring 4 separate interrupt GPIO pins.
When would MCP6549-I/SL be a better choice than LM339 for a quad-comparator design?
MCP6549-I/SL offers a 1.6 V minimum supply versus LM339's 2 V minimum, 0.1 nA input bias current versus LM339's 25 nA, and a smaller SOIC-14 footprint, making it superior for low-voltage battery-powered designs. LM339 may still be preferred for legacy 5V-only systems where its lower cost and wider temperature range are more important than supply voltage headroom.
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|---|---|---|
| 1+ | $0.3200 | $0.32 |
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