MCP73871-2CAI/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip MCP73871-2CAI/ML is a linear Li-Ion battery charger with USB and DC input power path management, 4.2 V regulation, and up to 1 A charge current in a QFN-20 package. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- MCP73871-2CAI/ML Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.7300(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 MCP73871-2CAI/ML?
- Dual-input power path management prioritizing USB or DC adapter input and passing power to system load even while charging
- Adjustable charge termination threshold enabling compatibility with Li-Ion and Li-Polymer cells requiring 4.1 V or 4.2 V termination
- QFN-20 package with exposed thermal pad improving heat dissipation at 1 A charge rates in compact portable designs
What is MCP73871-2CAI/ML used for?
The MCP73871-2CAI/ML is designed for portable devices requiring simultaneous USB charging and system power delivery, such as handheld GPS units, portable medical monitors, and IoT data loggers. Its power path management ensures the system load continues operating from input power when a charger is connected, even if battery is depleted. The adjustable termination threshold accommodates various single-cell Li-Polymer chemistries used in wearables and industrial handheld tools.
What are the specifications of MCP73871-2CAI/ML?
| Pbfree Code | Yes |
| Manufacturer Package Code | QFN-20 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | LINEAR BATTERY CHARGER |
| JESD-30 Code | S-PQCC-N20 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC20,.16SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 3.75mA |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 4.479V |
| Supply Voltage-Nom (Vsup) | 5.2V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Threshold Voltage-Nom | +4.2V |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Where can I find the MCP73871-2CAI/ML datasheet?
MCP73871-2CAI/ML Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP73871-2CAI/ML?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the MCP73871-2CAI/ML power path management benefit a USB-powered handheld device during charging?
The MCP73871-2CAI/ML routes USB or DC adapter power directly to the system load while simultaneously charging the battery, preventing system shutdown during heavy loads. Even at 1 A system draw, the power path ensures the device runs from the 5 V input rail rather than discharging the battery, extending battery cycle life significantly.
What adjustable threshold feature does the MCP73871-2CAI/ML provide and how does it support different Li-Polymer cell variants?
The adjustable threshold pin allows the charge termination voltage to be set to either 4.1 V or 4.2 V via an external resistor or pin strapping, accommodating older Li-Polymer cells rated at 4.1 V full charge and newer high-energy-density cells at 4.2 V within a single PCB design without changing firmware.
For a compact IoT wearable design, what board area does the MCP73871-2CAI/ML's QFN-20 package require?
The QFN-20 package measures 4 mm x 4 mm with an exposed thermal pad on the bottom, occupying approximately 16 mm² of PCB area, which is about 40% smaller than a comparable SOIC-14 solution, making it well suited for wearables where total PCB area is budgeted at under 10 cm².
What is the factory lead time for MCP73871-2CAI/ML and is it RoHS-compliant for international distribution?
Factory lead time is 6 weeks and the device carries a Pb-free (RoHS-compliant) designation with JEDEC moisture sensitivity code e3, meaning it is eligible for standard 260°C lead-free reflow assembly and compliant with EU RoHS Directive requirements for worldwide commercial distribution.
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