BQ24272RGET

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Texas Instruments’ BQ24272RGET, or BQ24272, is a battery-charging power management integrated circuit (PMIC) designed for applications with single-cell Li-ion and Li-polymer batteries.

The BQ24272 device has a 2.5 A maximum output current, a wide input voltage range, a low-profile SSSO-6 package, and a wide operating temperature range from -40°C to 85°C. The device is suitable for applications that require low-power charging, such as digital still cameras, cell phones, digital audio players, and PDAs. The BQ24272 is also well suited for microprocessor-based system designs that require a high-precision, low-power supply for system operations and charging.

The BQ24272 charging management IC is specifically designed for use in single-cell Li-ion and Li-polymer battery applications, providing high-performance, high-precision charge control with dynamic switching to protect the battery and the system. It is capable of charging batteries with a wide input voltage range, from 3V to 6V, and safely controlling the charge current up to 2500mA.

The BQ24272 provides a wide temperature operating range from -40°C to +85°C. It ensures stable charging performance over the entire temperature range, eliminating the need for external cooling and mechanical heat sinks. The device also contains robust charging circuitry that is designed to safely protect the battery and system from overcharging, over-temperature and over-voltage. The device can automatically detect the voltage level of the battery and select the appropriate charging current for the battery.

The BQ24272 features a well-defined analog front end (AFE) that performs monitoring and signal conditioning functions. It includes a sensing circuit to monitor the output current, voltage and temperature of the battery, a voltage regulator to regulate the input voltage, and an over-voltage protection circuitry to protect the battery from over-voltage conditions.

The BQ24272 supports both low-power charging and full-power charging, as well as a five-level charge LED indicator. The LED indicator provides users with visual feedback by indicating the current charging status. The BQ24272 also provides a wide range of power saving features, including current- and voltage-based charging, pre-charging, and trickle charging.

The BQ24272 is compatible with many common battery protection circuits, including single-cell, over-current, over-voltage, over-temperature, and reverse current protection circuits. The device is designed to be low noise, and its low external component count makes it perfect for space constrained applications. It is also compatible with several common battery management ICs, including the bq274xx series, and is backward compatible with existing battery chargers.

In summary, the BQ24272 is the ideal single-cell Li-ion and Li-polymer battery charging power management integrated circuit from Texas Instruments. Its wide input voltage range, a low-profile SSSO-6 package, and a wide operating temperature range from -40°C to 85°C make it suitable for use in applications that require low-power charging, such as digital still cameras, cell phones, digital audio players, and PDAs. The device provides robust charging circuitry that is designed to safely protect the battery and system from overcharging, over-temperature and over-voltage conditions. Various power-saving features, such as current- and voltage-based charging, pre-charging, and trickle charging, are also supported.

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