MCP73832T-2ACI/OT Li-Polymer Charge Management Controllers: Diagram, Pinout, and Datasheet

The MCP73832T-2ACI/OT is a highly advanced linear charge management controller designed for space-constrained and cost-conscious applications. The MCP73832T-2ACI/OT is offered in a 5-lead SOT-23 packaging or an 8-lead 2 mm x 3 mm DFN package. The MCP73832T-2ACI/OT is appropriate for portable applications because of its compact physical size and a minimal number of external components required. The MCP73832T-2ACI/OT complies with all USB power bus requirements for applications charging from a USB port.

With customizable preconditioning and charge termination, the MCP73832T-2ACI/OT uses a constant-current/constant-voltage charge algorithm. To accommodate new, growing battery charging requirements, the constant voltage control is fixed with four options: 4.20V, 4.35V, 4.40V, or 4.50V. One external resistor is used to set the constant current value.

During high power or hot ambient circumstances, the MCP73832T-2ACI/OT device limits the charge current based on die temperature. The charge cycle duration is optimized thanks to this thermal management, which also ensures device durability.

The preconditioning threshold, preconditioning current value, charge termination value, and automatic recharging threshold can all be customized. The preconditioning and charge termination values are calculated as a percentage or ratio of the prescribed constant current value. It is possible to turn off preconditioning. For possible options, see Section 1.0 "Electrical Characteristics" and the Product Identification System for standard options.

Over a temperature range of -40°C to +85°C, the MCP73832T-2ACI/OT device is completely described.

The following figure shows MCP73832T-2ACI/OT Pinout.

The following figures are MCP73832T-2ACI/OT Symbol, Footprint and 3D Model.

• Linear Charge Management Controller:

- Integrated Pass Transistor

- Integrated Current Sense

- Reverse Discharge Protection

• High Accuracy Preset Voltage Regulation: + 0.75%

• Four Voltage Regulation Options:

- 4.20V, 4.35V, 4.40V, 4.50V

• 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

- Open-Drain Output

• Automatic Power-Down

• Thermal Regulation

• Temperature Range: -40°C to +85°C

• Packaging:

- 8-Lead, 2 mm x 3 mm DFN

- 5-Lead, SOT-23

Microchip Technology MCP73832T-2ACI/OT technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology MCP73832T-2ACI/OT.

The following figure is MCP73832T-2ACI/OT Functional Block Diagram.

Functional Block Diagram

The MCP73832T-2ACI/OT Typical Application is shown as follows.

Typical Application

• Lithium-Ion/Lithium-Polymer Battery Chargers

• Personal Data Assistants

• Cellular Telephones

• Digital Cameras

• MP3 Players

• Bluetooth Headsets

• USB Chargers

The following figure is MCP73832T-2ACI/OT Package.

Microchip Technology Incorporated is a leading manufacturer of smart, networked, and secure embedded control solutions. Customers may create optimal designs using the company's simple development tools and broad product choices, which reduce risk while lowering overall system costs and time to market. The company's technologies are used by over 120,000 clients in the industrial, automotive, consumer, aerospace and defense, communications, and computing sectors. Microchip Technology Inc., based in Chandler, Arizona, offers outstanding technical assistance as well as reliable delivery and quality.