TL598CNG4

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TL598CNG4 is a DC DC switching controller manufactured by STMicroelectronics, designed to provide an adjustable output voltage in a wide range of output currents. The device is suitable for applications such as DC–DC converter, power management, motor control, and voltage regulation. This article discusses the application field and working principle of the device.

Application Field

TL598CNG4 is suitable for a wide range of applications, including DC-DC converters, power management, motor control and voltage regulation. This versatile device can be used in a variety of scenarios, from automotive and industrial applications, to consumer products and high power applications.

Working Principle of TL598CNG4

The TL598CNG4 is a synchronous step-up DC–DC switching controller, which converts an adjustable input voltage into an adjustable output voltage in a wide range of output currents. The device is composed of an internal high-voltage MOSFET (HVFET). The device has two sets of input control pins: the VIN pin, which is an adjustable voltage ranging from 0V to 15V; and the OVIN pin, which is an adjustable voltage ranging from 0V to 16V. The output voltage is determined by the voltage level at the VIN pin, while the current limit is determined by the voltage level at the OVIN pin.

The device operates in two different modes: Buck and Boost. In Buck mode, the voltage at the VIN pin is lower than the output voltage, and the device regulates the output voltage by turning on and off the MOSFET as required. In Boost mode, the voltage at the VIN pin is higher than the output voltage, and the device again regulates the output by alternating its MOSFET on and off.

The device also has two internal thresholds for detecting an over-current or over-voltage condition. If the output voltage rises above the Overtemperature threshold, the device will reduce its current limit to prevent damage to the device or other components.

The device also has an internal clock and can be configured to run at different frequencies, ranging from 50 kHz to 2 MHz. The device also has an internal temperature sensor that triggers the device to reduce its power dissipation when the temperature rises above a certain limit. The device is also equipped with short-circuit protection and a fault signal output, which can be used to detect faults in the system.

Conclusion

The TL598CNG4 is a highly versatile DC-to-DC switching controller suitable for a variety of applications, from automotive and industrial applications, to consumer products and high power applications. The device has two input pins, an adjustable voltage range, two operating modes, and a variety of safety features. With its wide range of features and its ability to run at different frequencies, the TL598CNG4 is a great choice for any application requiring a versatile and powerful DC–DC switching controller.

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