Overview
The MCP73831T-2ACI/OT is a highly advanced linear battery management controller designed by Microchip Technology. This device is optimized for use in space-limited, cost-sensitive applications, making it ideal for portable electronics. It employs a constant-current/constant-voltage charge algorithm with selectable preconditioning and charge termination, ensuring efficient and safe battery charging. The controller supports lithium-ion and lithium-polymer batteries and is available in compact packages such as the 5-Lead SOT-23 and 8-Lead DFN, facilitating easy integration into various designs.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Technology |
| Package Type | SOT-23-5, DFN-8 |
| Output Voltage | 4.20V, 4.35V, 4.40V, 4.50V |
| Output Current | 15 mA to 500 mA |
| Supply Voltage Range | 3.75 V to 6 V |
| Operating Temperature Range | -40°C to +85°C |
| Output Voltage Tolerance | ±0.75% |
| Battery Type | Lithium-Ion/Lithium-Polymer |
| Mounting Type | Surface Mount |
Key Features
- Integrated Pass Transistor and Current Sense
- Reverse Discharge Protection
- High Accuracy Preset Voltage Regulation (+/- 0.75%)
- Programmable Charge Current: 15 mA to 500 mA
- Selectable Preconditioning: 10%, 20%, 40%, or Disable
- Selectable End-of-Charge Control: 5%, 7.5%, 10%, or 20%
- Charge Status Output (Tri-State or Open-Drain)
- Automatic Power-Down and Thermal Regulation
Applications
- Lithium-Ion/Lithium-Polymer Battery Chargers
- Personal Data Assistants
- Cellular Telephones
- Digital Cameras
- MP3 Players
- Bluetooth Headsets
- USB Chargers
Q & A
- What is the MCP73831T-2ACI/OT used for?
The MCP73831T-2ACI/OT is used as a linear battery management controller for lithium-ion and lithium-polymer batteries in various portable electronic devices.
- What are the available package types for the MCP73831T-2ACI/OT?
The device is available in 5-Lead SOT-23 and 8-Lead DFN packages.
- What is the output voltage range of the MCP73831T-2ACI/OT?
The output voltage can be set to 4.20V, 4.35V, 4.40V, or 4.50V.
- What is the programmable charge current range of the MCP73831T-2ACI/OT?
The charge current can be programmed from 15 mA to 500 mA.
- What is the operating temperature range of the MCP73831T-2ACI/OT?
The device operates within a temperature range of -40°C to +85°C.
- Does the MCP73831T-2ACI/OT have thermal regulation?
- What types of batteries does the MCP73831T-2ACI/OT support?
The device supports lithium-ion and lithium-polymer batteries.
- Does the MCP73831T-2ACI/OT have reverse discharge protection?
- How does the MCP73831T-2ACI/OT indicate charge status?
The device provides a charge status output, which can be either tri-state or open-drain.
- Is the MCP73831T-2ACI/OT suitable for USB charging applications?
