BQ24703PWG4

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BQ24703PWG4 is a highly integrated, programmable, and flexible non-inverting buck regulator from Texas Instruments which integrates four buck-regulating steps. It is designed to provide highly efficient, low noise, and small form factor power management for mobile applications. This device’s features include: wide (4.4V to 28V) input voltage range; over-voltage, over-current, and over-temperature protection; adjustable output voltage (0.6V to 5.5V); and input current regulation, maintaining a constant current from the input source. It consists of four distinct elements: power stage, control logic, input voltage regulation, and voltage measurement.

BQ24703PWG4 is smart integrated power supply with the capability to regulate and control a battery or other power source with unique programmable features. It includes a constant voltage (CV) and constant current charging (CC) mode, trickle charging, recharge, and dynamic current sharing, along with a wide variety of other features. The device is optimized for optimally charging a range of common battery chemistries, such as Li-Ion/Li-Polymer, NiMH, and NiCd batteries.

The charger is capable of detecting a battery with its dedicated Iq-LIM pin which enables the charger to automatically recognize its cell options for the dynamic current regulation (DCR) feature. Additionally, it has a thermal regulation system with the ability to monitor temperature from inside the device. This function helps to prevent the device from overheating and will readjust the charge current when excessive temperatures are detected.

The application field of the BQ24703PWG4 extends to notebooks, Ultrabook systems, tablets, and PDAs, where it provides a wide range of features for different systems. It can be used to charge a single or a multiple cell battery stack and provides flexibility when it comes to selecting the specific power management scheme. It is also suitable for the majority of portable electronic devices which require an efficient, reliable, and flexible power source.

The working principle of BQ24703PWG4 can be divided into four distinct elements. The power stage takes input from a power supply, adjusts the voltage and current to the desired levels, and delivers a regulated output. The control logic handles the configuration and sequencing of different steps and implements the protection features. The input voltage regulation controls the power supply voltage and current and makes sure that it remains within the specified limits. The voltage measurement checks the output voltage and adjusts the power stage accordingly.

The BQ24703PWG4 can be used to power various electronic devices with its wide input voltage range, programmable output voltage, and efficient control logic. Its various protection features and wide operating temperature range makes it suitable for applications in a wide range of operating conditions. The dynamic current regulation feature allows the device to rapidly adjust to changing conditions and reduces the overall power consumption of the device when charging is complete.

The BQ24703PWG4 is an excellent choice for mobile application and power management for a variety of devices. Its features make it a reliable, safe and efficient device for powering and managing your application needs.

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