MCP73855-I/MF Microchip Integrated Circuit (Small Outline No-lead) In Stock
Microchip MCP73855-I/MF is a single-channel linear battery charger IC in a compact 3 mm × 3 mm, 0.9 mm height 10-pin DFN package, designed for single-cell Li-ion and Li-polymer battery charging applications. It provides a complete constant-current/constant-voltage charge algorithm without an adjustable threshold in a Pb-free, RoHS-compliant form factor. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP73855-I/MF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.6100(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 MCP73855-I/MF?
- Single-channel linear Li-ion/Li-polymer battery charger with integrated CC/CV charge algorithm eliminating external control circuitry
- Ultra-compact 3 mm × 3 mm, 0.9 mm height 10-pin DFN package enabling integration in space-constrained wearable and portable designs
- Fixed threshold configuration simplifying BOM and firmware by removing adjustable component requirements
- RoHS-compliant Pb-free JESD-609 e3 construction suitable for consumer electronics and industrial portable devices
What is MCP73855-I/MF used for?
The MCP73855-I/MF targets single-cell Li-ion and Li-polymer battery-powered portable devices such as wireless earbuds, fitness trackers, handheld medical instruments, and IoT sensor nodes requiring an autonomous charge management solution. Its integrated constant-current/constant-voltage algorithm handles the full charge cycle from preconditioning through termination without external supervisory firmware. The 3 mm × 3 mm DFN footprint allows designers to place the charger IC directly adjacent to the battery connector on boards with under 500 mm² total area.
What are the specifications of MCP73855-I/MF?
| Pbfree Code | Yes |
| Manufacturer Package Code | DFN-10 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Adjustable Threshold | NO |
| 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) | 4mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5.1V |
| 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 | +4.1V,+4.2V |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| 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 |
Where can I find the MCP73855-I/MF datasheet?
MCP73855-I/MF Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP73855-I/MF?
Compatible alternatives and drop-in replacements for MCP73855-I/MF:
suggested
suggested
Frequently Asked Questions
How does MCP73855-I/MF's integrated CC/CV algorithm simplify Li-ion charger design compared to a discrete solution?
The MCP73855-I/MF integrates the complete constant-current and constant-voltage charge profile—typically 4.2 V termination voltage with programmable charge current—on a single IC, replacing a discrete solution that would require a precision reference, a current-sense amplifier, a comparator, and a pass transistor. This integration reduces the component count by roughly 5–8 parts, shrinks PCB area by several hundred mm², and eliminates the need for firmware-controlled charge state management in simple single-cell Li-ion charger applications.
For a fitness tracker PCB with under 300 mm² board area, how does MCP73855-I/MF's DFN package compare to larger SO-8 charger ICs?
The MCP73855-I/MF's 3 mm × 3 mm DFN package with 0.9 mm height occupies approximately 9 mm² of PCB footprint, versus roughly 20 mm² for a standard SO-8 charger IC—less than half the area. The reduced 0.9 mm profile also fits under battery packs in stacked-board designs where vertical clearance is limited to 1 mm above the PCB surface, making it a better fit for ultra-thin fitness trackers and smartwatch modules than taller SOIC alternatives.
In production procurement, what lead time and qualification considerations apply to MCP73855-I/MF?
Microchip lists a 7-week factory lead time for MCP73855-I/MF, which is shorter than many specialty charger ICs in similar package classes, allowing procurement teams to plan 8–10 week safety stock buffers for medium-volume consumer electronics builds. The YTEOL (years to end of life) rating of 9 years indicates near-term product availability, and the JESD-609 e3 Pb-free classification satisfies EU RoHS 2 and REACH directives without requiring a material declaration waiver, simplifying customs documentation for global distribution channels.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
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| 1+ | $2.2300 | $2.23 |
| 100+ | $1.6900 | $169.00 |
| 1000+ | $1.6300 | $1630.00 |
| 5000+ | $1.6100 | $8050.00 |
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