MP2615BGQ-Z

Overview

The MP2615BGQ-Z is a high-efficiency switching battery charger designed for single or dual-cell lithium-ion and lithium-polymer batteries. It supports an input voltage range of 4.5V to 18V with a maximum programmable charging current of 2A, regulated via an external sense resistor. The device utilizes constant on-time control to achieve up to 99% duty cycle operation. It features integrated power switches, internal loop compensation, and precise charge termination at 4.3V per cell with ±0.75% accuracy. The component operates within a temperature range of -40°C to +125°C and is housed in a 3mm x 3mm QFN-16 package.

Feature Summary

• Constant on-time control architecture enables high duty cycle operation for efficient charging near input voltages
• Integrated power switches eliminate the need for external blocking diodes
• Dual control loops ensure precise constant current and constant voltage regulation
• Comprehensive protection mechanisms include over-temperature, over-current, and reverse discharge lockout

Applications

• Single-cell lithium-ion battery charging systems
• Dual-cell lithium-polymer battery management applications
• Portable electronic devices requiring compact power management solutions
• Industrial equipment utilizing Li-ion or Li-Po battery packs

Procurement Notes

Verify the specific suffix 'BGQ' against the manufacturer's official documentation to confirm the exact output voltage configuration and thermal rating. Ensure that the selected variant matches the system's required cell count and input voltage constraints. Cross-reference the datasheet revision history to validate compatibility with existing design parameters before finalizing procurement orders.

Selection Notes

Select this component when designing for single or dual-cell lithium-based chemistries requiring high efficiency in a minimal footprint. The integrated switch topology reduces external component count compared to discrete solutions. Consider the wide operating temperature range for industrial environments. Validate that the 2A current limit aligns with the target battery specifications and thermal dissipation capabilities of the PCB layout.

Part Context

This part belongs to the MP2615 series of battery chargers from Monolithic Power Systems. It shares architectural similarities with other members like the MP2615GQ-Z but differs in specific electrical characteristics such as output voltage settings and thermal performance grades. The BGQ suffix typically denotes a specific binning or extended temperature variant within the broader product family.

Replacement Considerations

MP2615GQ-Z is a documented substitute within the same series. Verify pin-to-pin compatibility and ensure that the alternative part number meets the specific voltage and temperature requirements of the original design specification.