bq25180ybgr

Updated: 2026-08-06

Overview

The BQ25180YBGR is a battery management integrated circuit (IC) designed by Texas Instruments, optimized for portable and IoT devices. It integrates multiple functions, including battery charging, power path management, and system voltage regulation, into a single compact package. This IC is particularly suited for applications requiring long battery life and minimal power consumption. The BQ25180YBGR supports various battery chemistries, including lithium-ion and lithium-polymer, making it versatile for different device requirements. Its small form factor and high efficiency make it a popular choice for space-constrained designs.

Structure and Working Principle

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The BQ25180YBGR combines a synchronous buck converter with a battery charger and power path management. The buck converter efficiently steps down the input voltage to the required system voltage, while the charger manages the battery charging process. The power path ensures seamless switching between battery and external power sources. This IC operates with a low quiescent current, minimizing power loss when the device is in standby or low-power modes. It also includes protection features such as overvoltage, overcurrent, and thermal shutdown to safeguard both the IC and the connected battery.

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Key Features

One of the standout features of the BQ25180YBGR is its ultra-low quiescent current, which is critical for extending battery life in IoT and portable devices. The IC also supports a wide input voltage range, typically from 3.5V to 5.5V, accommodating various power sources. Additionally, the BQ25180YBGR includes an integrated power path management system, which allows the device to operate directly from the input power while simultaneously charging the battery. This feature ensures uninterrupted operation even when the battery is depleted.

Application Areas

The BQ25180YBGR is widely used in portable electronics such as smartwatches, fitness trackers, and wireless earbuds. Its efficiency and compact size make it ideal for these applications, where space and power consumption are critical factors. In the IoT sector, this IC is employed in devices like smart sensors, wearable health monitors, and other battery-powered gadgets. Its ability to manage power efficiently ensures long operational life and reliable performance in these applications.

Maintenance and Precautions

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When handling the BQ25180YBGR, it is essential to follow electrostatic discharge (ESD) precautions to prevent damage to the IC. Proper thermal management is also crucial, as excessive heat can degrade performance and longevity. Ensure that the operating conditions, such as input voltage and charging current, are within the specified limits. Using the IC outside these parameters may result in reduced efficiency or potential failure.

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B2B Procurement Guide

When procuring the BQ25180YBGR, verify the supplier's authenticity to avoid counterfeit components. Texas Instruments or authorized distributors are recommended sources. Bulk purchases typically offer cost savings, so consider volume requirements. Evaluate the IC's compatibility with your specific battery chemistry and system requirements. Request samples for testing to ensure performance meets your application's needs before committing to large orders.