MP26121DQ-LF-P

$2.92

Description：IC BATT CHG LI-ION 1CELL 10QFN
Series：-
Mfr：Monolithic Power Systems Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:f481407250b3 Category: Battery Chargers Brand: Monolithic Power Systems Inc.

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Product introduction

Product Detailed Parameters

Description：IC BATT CHG LI-ION 1CELL 10QFN
Series：-
Mfr：Monolithic Power Systems Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Battery Chemistry：Lithium Ion/Polymer
Voltage - Supply (Max)：6.5V
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：10-VFDFN Exposed Pad
Supplier Device Package：10-QFN (3x3)
Number of Cells：1
Current - Charging：Constant - Programmable
Programmable Features：Timer
Fault Protection：Over Voltage
Charge Current - Max：1A
Battery Pack Voltage：4.2V
Interface：-
Grade：-
Qualification：-

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MP26121DQ-LF-P

Overview

The MP26121DQ-LF-P is a linear single-cell lithium-ion battery charger manufactured by Monolithic Power Systems. It operates within an input voltage range of 3.5 V to 6.5 V and delivers a programmable charging current of up to 1 A. The device provides a fixed output voltage of 4.2 V for the battery cell. Designed for surface-mount installation, it utilizes a QFN-10 package. The component supports operation across a temperature range from -40°C to +85°C and features a low quiescent supply current of 200 µA.

Feature Summary

Integrates NTC thermistor monitoring for precise battery temperature management during the charging cycle
Supports direct connection to USB power sources or wall adapters via wide input voltage compatibility
Includes automatic recharge functionality that resumes charging when battery voltage drops below the threshold

Applications

Portable electronic devices powered by single-cell lithium-ion batteries
USB-powered consumer electronics requiring compact charge management
Battery backup systems for handheld instruments

Procurement Notes

Verify the suffix 'P' indicates tape-and-reel packaging rather than tube. Confirm RoHS compliance status through official documentation. Ensure the QFN-10 footprint matches your PCB layout requirements. Check for lead-free specifications if required by assembly standards.

Selection Notes

Select this part for applications requiring a simple linear solution with minimal external components. It is suitable where space constraints favor the QFN-10 package over larger alternatives. Consider thermal dissipation capabilities given the linear topology at higher input-to-output voltage differentials.

Part Context

This component belongs to the MPS MP26121 series of single-cell battery chargers. It is designed as a cost-effective alternative to switching regulators in low-power portable applications. The series emphasizes ease of implementation with reduced bill of materials.