BQ24382DSGT

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The BQ24382DSGT is a device from Texas Instruments’ highly versatile power management ICs from Battery Management product line. This device is designed to deliver an efficient and cost-effective single cell batteries charging services through a range of operating voltages. An integrated switch-mode charge controller, Compensated Low-Dropout (LDO) linear regulator, and power MOSFETs makes BQ24382DSGT a dependable choice for battery charging systems in mobile gadgets, tablet computers and other portable devices.

In terms of application scope, the BQ24382DSGT is used in battery chargers and power systems to guarantee reliable charging performance and protect battery cells. The device implements charge current control from switched mode-power supply output at low levels (0.3A) to higher levels (3A) and allows adherence to safety recommendation standards like USB, BC1.2, as well as Apple and Samsung. Moreover, the device offers adjustable aggressiveness when charging Li-Ion based batteries.

The BQ24382DSGT is also capable of operating in either standard or low power mode. In standard mode, the device is optimized to draw lower quiescent supply current, while in the low power mode, the device completely shuts off the main linear regulator and PWM charge current regulator, maximizing battery life. Through its Dual Input System, the device is equipped to respond to both AC and USB inputs, while the included thermal regulation system monitors critical physical conditions. The series of advanced safety mechanisms, such as Charge Timer, Charge Terminates and Charge Suspend, as well as its remaining safety features, allow for maximum protection for the battery.

Now we’ll discuss how this device works. The BQ24382DSGT consists of a 2A MOSFET switch, a PWM current controller, a 25mV Low-Dropout regulator, a dual-input system, and an advanced safety feature set. The 2A MOSFET switch receives charging current and then redistributes it to the PWM current controller and the LDO linear regulator.

The PWM current controller manages power to the battery through Pulse Width Modulation (PWM). The current regulation of the PWM current controller works by setting a peak current limit and controlling the on-time of the MOSFET switch to maintain a desired charging current level. The LDO linear regulator reduces the peak current and provides a regulated 5V output for charging. The dual-input system allows the device to switch automatically between either a USB input, an AC input, or both inputs set in parallel.

The MOSFET switch is also monitored by an over-current detection circuit to prevent current surge and further protect the power control channel. Furthermore, the advanced safety feature set indicates that the device is compliant to all the relevant safety certifications such as USB, BC1.2, and Apple. Furthermore, the built-in safety features such as the low current comparator and reverse current protection circle allows for maximum protection for the battery.

To summarize, the BQ24382DSGT from Texas Instruments’ Battery Management product line is a highly versatile device designed to deliver high performing and cost-effective single cell battery charging services with a variety of operating voltages. Some its features include an integrated switch-mode charge controller, Compensated Low-Dropout (LDO) linear regulator, power MOSFETs, adjustable aggressiveness when charging Li-Ion based batteries, dual input system, thermal regulation system, and advanced safety mechanisms. All this makes BQ24382DSGT ideal for battery charging systems in mobile gadgets, tablet computers, and other portable devices.

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