ROHM 1-Cell Lithium-Ion/Polymer Linear Battery Charger IC Surface Mount UMMP10LZ1824 10-Pin BD71631QWZ-TR

ROHM BD71631QWZ-TR is a 1-cell Lithium-Ion/Polymer linear battery charger IC designed for low charge voltage batteries. This surface mount device uses a UMMP10LZ1824 10-pin package to provide efficient and compact charging solutions. It operates with a minimum supply voltage of 2.9 V up to a maximum of 5.5 V, supporting a wide operating temperature range from -30°C to 105°C, suitable for harsh industrial environments.

The charger IC allows adjustment of charging parameters, including charge voltage, charge current, and termination current, through external resistors, offering versatile configuration to meet application-specific requirements. It features a low quiescent battery current design and an NTC thermistor input to enable temperature qualified charging for battery safety.

For operational safety, the IC includes several built-in protections such as under voltage lockout, battery overvoltage protection, thermal shutdown, and a fixed 10-hour safety timer to prevent battery damage from prolonged charging. The open-drain charge indicator LED output facilitates easy monitoring of charge status.

With compact physical dimensions of 2.4 mm length, 1.8 mm height, and 400 µm width, the BD71631QWZ-TR supports space-saving PCB layouts, making it ideal for consumer electronics and embedded systems. Additionally, it complies fully with RoHS standards, ensuring it meets environmental and health safety regulations common in modern electronics manufacturing.

Operates with 2.9 V to 5.5 V supply voltage. Adjustable termination current from 50µA to 10mA via external resistors. Incorporates low quiescent battery current for energy efficiency. NTC thermistor input enables temperature qualified charging.

Built-in under voltage lockout and overvoltage protections. Thermal shutdown feature ensures device safety under temperature stress. Fixed 10-hour safety timer prevents overcharging risks. Open-drain LED output for charge status indication.

Compact UMMP10LZ1824 surface mount 10-pin package. RoHS compliant for environmentally safe usage.

This battery charger IC is suitable for diverse environments including industrial electronics, consumer battery-powered devices, telecommunications equipment, and semiconductor solutions requiring precise and reliable battery management.

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