MCP73832T-5ACI/OT

Overview

The MCP73832T-5ACI/OT is a single-cell lithium-ion or lithium-polymer battery charge management controller manufactured by Microchip Technology. It operates within a supply voltage range of 3.75 V to 6 V and provides a fixed output voltage of 4.5 V. The device supports an output current ranging from 15 mA to 500 mA. It is housed in a SOT-23-5 surface-mount package with dimensions of 3.1 mm in length, 1.3 mm in height, and features five pins. The component functions reliably across an operating temperature range of -40 °C to +85 °C.

Feature Summary

• Integrates full-function linear charge management for single-cell lithium-based batteries
• Includes thermal regulation to reduce charging rate during high junction temperatures
• Provides status indication via dedicated drain-gate pin

Applications

• Portable electronic devices requiring single-cell lithium-ion or lithium-polymer battery charging
• Consumer electronics utilizing compact SOT-23-5 packaged power management solutions
• Battery-powered systems needing integrated thermal regulation and charge status monitoring

Procurement Notes

Verify the specific suffix ACI/OT against official Microchip documentation to confirm the 4.5 V output voltage setting and industrial temperature grade. Ensure the ordering part number matches the required package type and tape-and-reel configuration. Cross-reference datasheet revisions to confirm lead frame and assembly site details before finalizing procurement specifications.

Selection Notes

Select this component when a fixed 4.5 V charging profile is required for compatible lithium chemistry cells. The SOT-23-5 package suits space-constrained designs. Confirm that the application's input voltage remains within the 3.75 V to 6 V operational window. Evaluate thermal requirements as the device regulates current based on junction temperature rather than external resistors for termination.

Part Context

This part belongs to the MCP73831/2 series of charge management controllers. The MCP73832 variant specifically offers programmable charge current up to 500 mA, distinguishing it from the fixed-current MCP73831. The family is designed for simple, cost-effective charging applications in portable devices without complex communication protocols.

FAQ

What is the fixed output voltage for the MCP73832T-5ACI/OT?

The MCP73832T-5ACI/OT provides a fixed output voltage of 4.5 V.

Does the MCP73832T-5ACI/OT support programmable charge current?

Yes, the MCP73832 series supports programmable charge currents ranging from 15 mA to 500 mA.