MCP73837T-FCI/MF Microchip Integrated Circuit (Small Outline No-lead) In Stock
Microchip MCP73837T-FCI/MF is a single-cell Li-Ion linear battery charger supporting both USB and DC adapter inputs, with a 4.2 V regulation voltage and up to 1 A programmable charge current. It includes a power-good indicator and ships in a compact DFN-10 package. Available for worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP73837T-FCI/MF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7938(MOQ 100)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-input USB and DC adapter compatible Li-Ion charger with 4.2 V termination voltage and 1 A programmable charge current
- Power-good (PG) status indicator pin enabling system-level power path management without an external supervisor
- DFN-10 package with no-lead construction for low-profile, high-density charging circuit assembly in portable devices
Applications
MCP73837T-FCI/MF is designed for single-cell Li-Ion and Li-Polymer battery charging in smartphones, tablets, portable medical devices, and wireless sensor nodes that accept charge from both USB ports and wall adapters. Its adjustable threshold and 1 A current ceiling allow the designer to optimize charge time versus thermal budget for different battery capacities from 500 mAh to 2000 mAh. The DFN-10 no-lead package minimizes solution footprint and simplifies thermal management in slim handheld enclosures.
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 | 8542.39.00.60 |
| Country of Origin | Malaysia, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP73837T-FCI/MF:
Microchip Technology Inc Adjustable, 1 Channel, +4.2V, PDSO10
Frequently Asked Questions
How is the charge current of MCP73837T-FCI/MF programmed, and what range is achievable?
Charge current in MCP73837T-FCI/MF is set by an external resistor connected to the PROG pin, allowing programmable current from approximately 100 mA up to 1 A. A 2 kΩ resistor programs the full 1 A charge rate, while a 20 kΩ resistor limits it to about 100 mA for USB suspend or trickle-charge modes.
How does MCP73837T-FCI/MF handle simultaneous USB and DC input sources without damage?
MCP73837T-FCI/MF includes internal input priority logic that automatically selects the higher-priority DC adapter input when both USB 5 V and a DC source are present, preventing back-current flow. This dual-input architecture allows the charger to switch seamlessly between a 5 V USB port and a 5 V to 6 V AC adapter, protecting both sources with no external OR-ing diodes needed.
What does the power-good pin on MCP73837T-FCI/MF indicate, and how can a system use it?
The power-good (PG) output goes low-active when a valid input source is detected and the charger is operational, providing a 5 V logic-compatible signal that a host MCU can poll via a GPIO or use to enable a load switch. This allows the system to defer high-current operations to periods when the battery is confirmed charging, reducing peak draw on a marginal USB source below 500 mA.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $1.1400 | $114.00 |
| 400+ | $0.9020 | $360.80 |
| 1000+ | $0.7938 | $793.80 |
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