TPS40211DGQG4

TPS40211DGQG4 is a highly efficient, low-voltage, single-phase synchronous switch-mode DC/DC controller IC which has both a current-mode PWM (pulse width modulation) controller and driver. Developed by Texas Instruments, this switch mode DC/DC controller is designed to provide high efficiency in battery-powered applications while also providing superior line and load transient response. Read on to know more about the application field and working principle of TPS40211DGQG4.

Application Field of TPS40211DGQG4

The TPS40211DGQG4 has various applications like notebook computers, gaming consoles, handheld devices, digital cameras, RAM devices, motherboards and other portable electronic applications. This DC/DC switching controller also has features like adjustable current limit and full MOSFET drive for driving both N- and P-channel MOSFET devices. It can be used for an input voltage range of 2.8V to 5.5V and output voltage up to 7V, making it an ideal device for many kinds of applications.

Along with the adjustable current limit and the full MOSFET drive, the TPS40211DGQG4 also offers a wide operating temperature range, current-mode control, low-power dissipation, high EMI immunity, user selectable maximum duty cycle, power-good output and standby current inhibit. This single-phase synchronous switch-mode DC/DC controller is also designed with a fixed frequency and operates at a switching frequency up to 1MHz, making it suitable for high frequency applications.

Due to its high current rating and high efficiency of up to 95%, this device is ideal for power management applications, providing a high performance, cost-effective solution for battery-powered applications. It can also be used in magnetic resonance imaging or radiofrequency (RF) applications, as it has a built-in charge pump which provides up to 17V at the MOSFET gate.

Working Principle of TPS40211DGQG4

The TPS40211DGQG4 is a highly efficient, low-voltage, single-phase synchronous switch-mode DC/DC controller IC which works on the principle of pulse width modulation (PWM). This device requires a feedback input which is used to maintain the output voltage at a predetermined level. Once this voltage is reached, the feedback signal stops the pulse and the pulse width is diminished until the output signal returns to the preset level.

Internally, the TPS40211DGQG4 uses a voltage regulator and a driver stage. The voltage regulator is controlled by the feedback input from the output of the system to determine the total voltage on the output side. Then, the driver stage (which is made up of a MOSFET) is triggered when the voltage regulator is satisfied and the current is sent to the output to create the desired voltage. This process is repeated until the voltage reaches its predetermined level.

The TPS40211DGQG4 also features an adjustable current limit, which cannot be exceeded at anytime, ensuring safe and efficient operation of the device. It is also designed with a fixed frequency and operates at a switching frequency up to 1MHz so as to produce an output which is consistent and of high quality.

Conclusion

The TPS40211DGQG4 is an advanced, low-voltage, single-phase synchronous switch-mode DC/DC controller IC which is ideal for battery-powered applications. It features an adjustable current limit and full MOSFET drive, making it suitable for applications with input voltage in the range of 2.8V to 5.5V and output voltage up to 7V. Additionally, it has a wide operating temperature range, current-mode control, low-power dissipation and high EMI immunity. This DC/DC controller works on the principle of pulse width modulation (PWM) and has a switching frequency up to 1MHz.