MCP73832T-4ADI/MC

Overview

The MCP73832T-4ADI/MC 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 3.75V to 6V and supports a maximum charging current of 500mA. The device provides a fixed output voltage of 4.4V, suitable for specific cell configurations. It features programmable constant-current charging and includes overvoltage fault protection. The component is housed in an 8-DFN (2x3) surface-mount package with a bare pad and is rated for an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates constant-current and constant-voltage linear charging algorithms for single-cell lithium batteries
• Includes thermal regulation to manage die temperature during high-power charging cycles
• Provides status indication outputs for charge completion and fault conditions
• Features overvoltage protection to safeguard the battery from input supply anomalies

Applications

• Single-cell portable electronic devices requiring compact power management
• Battery-powered consumer electronics utilizing lithium-ion or polymer cells
• Embedded systems with strict space constraints for charge controller integration

Procurement Notes

Verify the specific suffix '4ADI' confirms the 4.4V output voltage variant against the official datasheet. Ensure the MC package designation matches the required 8-DFN footprint. Confirm RoHS compliance status if mandated by project specifications. Cross-reference the manufacturer part number directly with Microchip Technology documentation to avoid counterfeit components.

Selection Notes

Select this component when a 4.4V charging profile is required instead of the standard 4.2V. Compare the 8-DFN package dimensions against available PCB real estate. Evaluate the 500mA current limit against the target battery capacity. Consider the thermal performance requirements given the small package size and potential heat dissipation needs.

Part Context

This part belongs to the MCP73831/2 family of charge management controllers. It shares core functionality with other variants but differs in output voltage settings defined by the suffix. The family is designed for cost-sensitive applications where minimal external components are preferred. It complements other Microchip PMIC solutions for complete power system designs.

Replacement Considerations

MCP73832T-4ACI/MC is a documented substitute within the same series offering identical electrical characteristics and pinout compatibility.