MP2636GR-P

Overview

The MP2636GR-P is a fully integrated switching battery charger for single-cell lithium-ion or lithium-polymer batteries. It features power path management, supporting charging and reverse boost modes. Input voltage ranges from 4.5V to 6V with up to 16V tolerance. Programmable charge current reaches 3.0A. Charge voltage options include 4.2V, 4.3V, and 4.35V with 0.5% accuracy. Boost output current is programmable up to 3.0A. Operating temperature spans -40°C to +125°C TJ. Package is 30-QFN (4x4).

Feature Summary

• Integrated system power path management prioritizes system load while charging the battery.
• Supports reverse boost mode to supply the system from the battery when no input source is present.
• Includes analog IB pin reporting actual battery current during operation.
• Provides comprehensive protection against over-temperature, short circuits, and over-voltage.

Applications

• Portable devices powered by single-cell lithium-ion batteries
• Portable devices powered by single-cell lithium-polymer batteries
• Systems requiring simultaneous power path management and battery charging

Procurement Notes

Verify the specific suffix 'P' corresponds to the required packaging configuration, as 'Z' variants exist. Confirm the package type is 30-QFN (4x4) and RoHS compliance status matches project requirements. Ensure the selected charge voltage option (4.2V/4.3V/4.35V) aligns with the target battery chemistry specifications.

Selection Notes

Select this component for applications requiring a compact solution for single-cell Li-ion or Li-Po batteries. The 3A charge capability suits high-power portable electronics. Consider the reverse boost feature if the design requires powering the system directly from the battery during input loss. Verify thermal performance within the -40°C to +125°C operating range.

Part Context

The MP2636GR-P belongs to the MP2636 series of battery chargers manufactured by Monolithic Power Systems. It is designed for portable consumer electronics. The 'GR' indicates the QFN-30 package, and 'P' denotes the tape and reel packaging format. It is part of the broader PMIC portfolio focused on efficient power management.

Replacement Considerations

MP2636GR-Z is a parameter-equivalent alternative within the same series. Both share identical electrical characteristics and functionality. Selection between 'P' and 'Z' depends primarily on packaging quantity and reel specifications rather than functional differences.

FAQ

How does the MP2636 handle system power when the input source is disconnected?

It switches to a reverse boost mode, supplying power to the SYS pin from the battery. The output current in this mode is programmable via the OLIM pin.

What protection mechanisms are included for fault conditions?

The device includes over-temperature protection, output short-circuit protection, and over-voltage protection. In boost mode, it disconnects the battery during a short circuit and resumes normal operation once the fault is cleared.

Can the battery current be monitored externally?

Yes, the IB pin provides an analog voltage output that reflects the actual battery current during both charging and boost modes.