MCP73837-FCI/MF Microchip Integrated Circuit (Small Outline No-lead) In Stock
MCP73837-FCI/MF is a single-cell lithium-ion and lithium-polymer linear battery charger controller with adjustable threshold in a compact 10-pin DFN package. From $1.20 in stock worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP73837-FCI/MF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5914(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
- Single-cell Li-Ion/Li-Po linear charger with adjustable charge current threshold for flexible battery pack integration
- Compact 10-pin DFN package (3 mm x 3 mm) with thermistor input for temperature-qualified charging in portable devices
- USB-compatible input voltage range supporting 5 V wall adapters and USB host ports for universal charging in consumer electronics
Applications
MCP73837-FCI/MF is designed for single-cell lithium-ion and lithium-polymer battery management in portable consumer electronics such as Bluetooth headsets, wearables, and handheld instruments. Its adjustable charge current and threshold allow designers to optimize charge rate from 100 mA to 1 A for battery capacities ranging from 100 mAh to 2000 mAh. The thermistor-qualified charging feature prevents overtemperature damage in enclosed plastic enclosures where heat buildup during fast charging is a concern.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | DFN-10 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | LINEAR BATTERY CHARGER |
| JESD-30 Code | S-PDSO-N10 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC10,.12,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Supply Current-Max (Isup) | 3mA |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 4.5V |
| 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 | DUAL |
| Threshold Voltage-Nom | +4.2V |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What charge current range does the MCP73837-FCI/MF support and how is it set for different battery capacities?
The MCP73837-FCI/MF supports programmable charge current from approximately 100 mA to 1 A, set by a single external resistor connected to the PROG pin. For a 500 mAh Li-Po battery, a 2 kΩ resistor sets charge current to about 500 mA (C/1 rate), while a 1 kΩ resistor sets 1 A for a 1000 mAh cell, enabling precise charge-rate matching with a single passive component.
How does the thermistor input on the MCP73837-FCI/MF protect lithium batteries during charging?
The MCP73837-FCI/MF monitors battery temperature via an NTC thermistor connected to the THERM pin and suspends charging when the temperature falls outside a safe window of approximately 0°C to 45°C. This built-in temperature qualification eliminates the need for a separate protection IC in wearable and portable applications, reducing component count by at least 2 parts while meeting battery manufacturer charge safety requirements.
For a USB-powered wearable, what makes the MCP73837-FCI/MF a better choice than a discrete charger circuit?
The MCP73837-FCI/MF integrates USB 100 mA and 500 mA selectable input current limit, charge status outputs, and temperature protection in a 3 mm x 3 mm DFN-10 package, replacing 8 to 12 discrete components. This integration reduces PCB area by approximately 50% compared to a discrete solution using a linear pass transistor, sense resistor, and comparator, while meeting USB Battery Charging 1.2 specification with under 5 V input.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.5914 | $0.59 |
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