MCP73831-5ACI/MC Microchip Integrated Circuit (Small Outline No-lead) In Stock
Microchip MCP73831-5ACI/MC is a single-cell Li-Ion/Li-Polymer linear battery charger IC with 4.5V regulated output voltage, thermal shutdown at 150°C, and adjustable charge current. Available in compact DFN-8 package.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP73831-5ACI/MC Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5500(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 MCP73831-5ACI/MC?
- Single-cell Li-Ion/Li-Poly linear battery charger with 4.5 V regulated output and ±0.75% voltage accuracy
- Programmable charge current up to 500 mA via single external resistor
- Integrated thermal shutdown at 150°C for safe operation in space-constrained designs
- Compact DFN-8 (2 mm × 3 mm) package enabling ultra-small charger footprints
What is MCP73831-5ACI/MC used for?
The MCP73831-5ACI/MC is ideal for portable consumer electronics such as Bluetooth headsets, wireless earbuds, and handheld devices where a compact, single-cell Li-Ion or Li-Polymer battery charging solution is needed. Its adjustable charge current (via a single resistor) and 4.5 V regulated output make it well-suited for USB-powered chargers, wearables, and IoT sensor nodes requiring safe, autonomous battery management without a dedicated microcontroller.
What are the specifications of MCP73831-5ACI/MC?
| Pbfree Code | Yes |
| Manufacturer Package Code | DFN-8 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Additional Feature | Thermal Shutdown:150C |
| Adjustable Threshold | YES |
| Analog IC - Other Type | LINEAR BATTERY CHARGER |
| JESD-30 Code | R-PDSO-N8 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.11,20 |
| Package Shape | RECTANGULAR |
| 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) | 1.5mA |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 3.75V |
| Supply Voltage-Nom (Vsup) | 5.5V |
| 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 | +4.50V |
| 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 | Thailand |
Where can I find the MCP73831-5ACI/MC datasheet?
MCP73831-5ACI/MC Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP73831-5ACI/MC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the regulated output voltage of the MCP73831-5ACI/MC, and how accurate is it?
The MCP73831-5ACI/MC regulates the charge voltage to 4.5 V with a tight tolerance of ±0.75%, ensuring consistent and safe Li-Ion/Li-Poly single-cell charging across temperature and supply variations.
How is the charge current set on the MCP73831-5ACI/MC, and what is the maximum supported current?
Charge current is programmed by a single external resistor connected to the PROG pin, allowing values from approximately 15 mA up to 500 mA. This makes the IC flexible for batteries ranging from small coin-cell-sized packs to standard Li-Poly cells used in wearables.
Which package does MCP73831-5ACI/MC use, and what thermal protection does it include?
The device is housed in an 8-pin DFN (2 mm × 3 mm) small-outline no-lead package. It integrates thermal shutdown that activates at 150°C, automatically reducing charge current to protect the IC and battery in high-temperature or thermally constrained environments.
Can the MCP73831-5ACI/MC charge batteries in USB-powered products, and what input voltage does it require?
Yes. The MCP73831-5ACI/MC operates from a 4.5 V to 6.0 V input supply, making it fully compatible with USB 5 V bus power. Its linear topology eliminates the need for inductors, reducing BOM cost and EMI in portable USB-powered chargers and IoT devices.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.8200 | $0.82 |
| 90+ | $0.6702 | $60.32 |
| 100+ | $0.6300 | $63.00 |
| 1000+ | $0.5800 | $580.00 |
| 5000+ | $0.5500 | $2750.00 |
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