MCP73834T-NVI/MF

Overview

The MCP73834T-NVI/MF is a stand-alone linear charge management controller designed for lithium-ion and lithium-polymer batteries. It features an integrated power MOSFET, eliminating the need for external sense resistors or blocking diodes. The device supports input supply voltages from 3.75 V to 6 V and delivers a programmable output current up to 1.2 A. It provides a precise 4.2 V charging voltage with ±1% accuracy. The component operates within a temperature range of -40°C to +85°C and is housed in a 10-lead DFN (3x3 mm) package.

Feature Summary

• Integrated power MOSFET eliminates external sense resistors and blocking diodes
• Autonomous source selection between AC adapter and USB port inputs
• Programmable constant-current and constant-voltage charging profiles
• Automatic recharge function triggered when battery voltage drops below threshold

Applications

• Portable consumer electronics such as smartphones and tablets
• Medical devices requiring reliable battery charging
• Industrial handheld equipment
• IoT modules and wireless sensors

Procurement Notes

Verify the specific suffix 'NVI/MF' against the manufacturer's official datasheet to confirm pinout compatibility and thermal pad requirements. Ensure that the ordering information matches the exact package dimensions and marking codes provided in the latest Microchip documentation to avoid integration errors during procurement.

Selection Notes

Select this component for applications requiring a compact solution without external power path components. It is suitable for systems where input voltage stability varies between USB and wall adapters. Consider the thermal performance of the DFN package relative to the PCB copper area for heat dissipation when designing the layout.

Part Context

This part belongs to the MCP7383x family of charge management controllers. It shares functional similarities with other models in the series but differs in packaging and specific electrical tolerances. The T suffix indicates tape and reel packaging, while MF denotes the specific DFN package variant used for surface-mount assembly.

Replacement Considerations

MCP73834T-CNI/MF

FAQ

Does the MCP73834T-NVI/MF require an external blocking diode?

No, the device integrates a power MOSFET that handles reverse current protection, removing the need for an external blocking diode.

What is the maximum input voltage supported by this controller?

The controller supports an input supply voltage range from 3.75 V to 6 V.