Microchip Technology MCP73831T-2ACI/OT
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | SC-74A, SOT-753 |
| Interface | - |
| Mfr | Microchip Technology |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Number of Cells | 1 |
| Battery Chemistry | Lithium Ion/Polymer |
| Charge Current - Max | 500mA |
| Supplier Device Package | SOT-23-5 |
| Fault Protection | Over Voltage |
| Programmable Features | Current |
| Current - Charging | Constant - Programmable |
| Battery Pack Voltage | 4.2V |
| Voltage - Supply (Max) | 6V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | MCP73831 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
MCP73831T-2ACI/OT Li-Ion Battery Charger, Single-Cell Charger IC
The MCP73831T-2ACI/OT from Microchip Technology is a compact, fully integrated single-cell Li-Ion/Li-Polymer battery charge management controller, designed for space-constrained portable electronics requiring efficient and safe charging. This highly reliable IC features precise constant-current/constant-voltage (CC/CV) charging with programmable charge current up to 500mA, automatic charge termination, and multiple safety protections, including thermal regulation, reverse discharge protection, and over-voltage protection (OVP). Its ultra-small SOT-23-5 package makes it ideal for wearable devices, Bluetooth headsets, IoT sensors, and other low-power portable applications where board space and energy efficiency are critical.
Application Scenarios
The MCP73831T-2ACI/OT is widely used in compact, battery-powered devices, including wireless earbuds, fitness trackers, medical wearables, and smart home sensors. Its small footprint and minimal external component requirements make it perfect for PCB-constrained designs, while its robust safety features ensure reliable charging in consumer electronics, backup power systems, and industrial IoT devices.
Alternative Power IC Models
● MCP73832: Similar charge controller but with an additional battery detection feature for automatic power source switching.
● TP4056: A cost-effective linear Li-Ion charger with 1A charging current, widely used in budget-friendly consumer electronics.
● BQ24040: Texas Instruments' USB-compatible Li-Ion charger with 1A charging capability and integrated power path management.
● LTC4054: A low-dropout linear charger from Analog Devices, supporting 500mA charging with thermal regulation.
