MP2615GQ-P

Overview

The MP2615GQ-P is a high-efficiency switching battery charger IC designed for single or dual-cell lithium-ion and lithium-polymer batteries. It supports an input voltage range of 4.75 V to 18 V and delivers a programmable maximum charging current of 2 A. The device features a constant on-time control architecture that allows up to 99% duty cycle operation, maintaining significant charging current even when the battery voltage approaches the input level. It integrates power switches and internal loop compensation within a compact 3 mm × 3 mm QFN-16 package.

Feature Summary

• Implements precise constant-current and constant-voltage charging control loops with high accuracy.
• Utilizes constant on-time control mode to maximize efficiency across varying input-to-battery voltage differentials.
• Integrates comprehensive protection mechanisms including over-temperature, cycle-by-cycle over-current, and reverse discharge lockout.
• Provides battery temperature monitoring and status indication via dedicated output pins.

Applications

• Portable consumer electronics requiring efficient single-cell Li-ion charging
• Dual-cell battery packs in mobile devices and wearables
• Lithium-polymer battery management in compact industrial tools
• USB-powered portable equipment with strict space constraints

Procurement Notes

Verify the suffix 'P' indicates the specific tape-and-reel packaging configuration as defined by Monolithic Power Systems. Confirm RoHS compliance status and lead time requirements directly with authorized distributors or the manufacturer prior to ordering. Ensure the procurement order matches the exact part number to avoid discrepancies in package type or environmental certification.

Selection Notes

Select this component for applications requiring a wide input voltage range up to 18 V and high charging currents up to 2 A. The integrated power switches eliminate the need for external MOSFETs, simplifying the bill of materials. Consider the 3 mm × 3 mm QFN-16 footprint for designs with limited PCB area. Verify that the application environment stays within the specified operating temperature range of -40°C to +125°C.

Part Context

The MP2615GQ-P belongs to the MP2615 series of battery chargers from Monolithic Power Systems. This series is engineered for high-efficiency switching charge management in portable devices. The GQ designation typically refers to the specific thermal and electrical performance grade within the QFN-16 package family, ensuring reliable operation under various load conditions.

Replacement Considerations

MP2615GQ-Z is a verified substitute within the same product family offering identical electrical specifications and pinout compatibility. Both variants share the same functional characteristics and are interchangeable in existing designs without circuit modification.