MCP73841-410I/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP73841-410I/UN is a single-cell lithium-ion battery charger management IC with charge safety timer, temperature monitoring, and adjustable charge threshold in a 10-pin MSOP package. It provides a 4.10 V regulated charge voltage with integrated protection for safe single-cell Li-ion charging. Available in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP73841-410I/UN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.2000(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 battery charger with 4.10 V regulated charge voltage and integrated charge safety timer for protection
- Temperature monitoring input preventing overtemperature battery charging across the full −40 °C to 85 °C range
- Adjustable charge threshold via external resistor for flexible charge termination to match diverse battery specifications
- 10-pin MSOP package in 3.0 mm x 3.0 mm footprint enabling compact charger circuit integration in portable devices
- Single-channel architecture simplifying design for handheld consumer electronics with a single lithium-ion cell
Applications
The MCP73841-410I/UN is designed for single-cell Li-ion battery charging in portable consumer electronics such as handheld GPS receivers, Bluetooth headsets, and wearable fitness trackers where compact size and safe charging are critical. Its integrated temperature monitoring and charge safety timer protect the battery from overtemperature and overcharge conditions without requiring external supervisory ICs. The 10-pin MSOP form factor fits tightly alongside the battery connector on compact PCBs in IoT sensor nodes and remote controls with limited board area.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-10 |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | BATTERY MONITOR |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Supply Current-Max (Isup) | 4mA |
| Supply Voltage-Max (Vsup) | 12V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5.1V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.1V |
| Package | Small Outline Packages |
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 | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What charge voltage does MCP73841-410I/UN provide, and which Li-ion cell chemistry does it target?
The MCP73841-410I/UN is factory-set for a 4.10 V charge regulation voltage, targeting lithium-ion cells with a nominal 3.6 V to 3.7 V chemistry that reach full charge at 4.1 V instead of the standard 4.2 V. This 100 mV lower charge voltage extends cycle life for designs where battery longevity is more important than maximum capacity, making it suitable for industrial handheld instruments and long-service IoT devices expected to operate for 3 to 5 years.
How does the temperature monitoring feature of MCP73841-410I/UN protect the battery during charging?
MCP73841-410I/UN accepts an NTC thermistor input on its temperature-sense pin to measure battery surface temperature during charging. When the sensed temperature falls outside the safe charging window — typically 0 °C to 45 °C for most Li-ion cells — the IC suspends the charge current until temperature returns to the acceptable range, preventing the electrolyte decomposition and capacity degradation that result from charging a lithium-ion cell below 0 °C or above 60 °C.
Can MCP73841-410I/UN charge rate be adjusted, and what external components set the charge current?
Yes, the MCP73841-410I/UN charge current is set by an external resistor connected to the PROG pin, following the formula I_CHG = V_PROG / R_PROG, where V_PROG is typically 1.0 V. For example, a 10 kΩ resistor sets approximately 100 mA charge current, while a 2 kΩ resistor sets approximately 500 mA. The adjustable threshold feature also allows setting pre-charge and termination thresholds by selecting appropriate resistor values to match the connected single-cell battery capacity.
How does MCP73841-410I/UN compare to MCP73831 for a wearable device charger design?
Both MCP73841-410I/UN and MCP73831 are single-cell Li-ion charger ICs from Microchip in small packages, but they differ in charge voltage and package options. MCP73841-410I/UN targets a 4.10 V charge voltage suitable for extended-life battery management, while the MCP73831 charges to 4.20 V for maximum capacity. The MCP73841 in its 10-pin MSOP package also includes a charge safety timer, whereas the MCP73831 in SOT-23-5 is a simpler lower-cost option without the timer, making the MCP73841 the preferred choice when additional safety monitoring is required in unattended charging applications.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.8300 | $1.83 |
| 100+ | $1.3800 | $138.00 |
| 1000+ | $1.2800 | $1280.00 |
| 5000+ | $1.2100 | $6050.00 |
| 10000+ | $1.2000 | $12000.00 |
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