IR2153STR

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Gate drivers are an important element of power modules and their applications. The IR2153STR gate driver is a very popular product used for power applications. It is a full bridge driver in an SO-8 plastic package and is also available as an SO-14 package.

Features and Benefits

The IR2153STR is a true single chip full bridge gate driver that features a controlled storage time from turn-off to turn-on, selectable deadtime, and adjustable slew rates, making it suitable for a wide range of high power applications.

The IR2153STR offers high-efficiency and maximum power delivery, using a minimum of board space. It is designed to allow variable deadtimes through its high side, low side, and invert controls and is capable of driving large bridge loads. The IR2153STR has several protection features, including over-current protection (OCP), under-voltage lockout (UVLO), and over-temperature shutdown (TSD). The IR2153STR also provides a Double Pulse Detection feature that detects the occurrence of any double pulse. This feature can be used to protect the gate driver from the accidental sending of multiple pulses or from malfunctions on the high side or low side gate signals.

Applications

The IR2153STR is commonly used for motor control, medical, automotive and solar applications, as well as most other applications requiring reliable and efficient full bridge gate drivers. It is ideal for switched-mode power supply (SMPS) applications, high power servo motor control, high voltage DC motor controllers and switch mode regulators. Common motor applications requiring high performance drivers where the IR2153STR is used are stepper motors, brushed and brushless DC motors, and induction motors.

Working Principle

The IR2153STR is an integrated full bridge Gate driver designed to drive large capacitive and inductive loads with medium to high power such as motors, solenoids, and lamps. It accepts two-phase digital inputs, and provides two complementary outputs. The outputs can sink up to 10 mA and can source up to 35mA.

The IR2153STR works by accepting a logic control signal from an external controller. The signal is interpreted by the Gate driver and used to determine the proper operating conditions for the bridge driver. The IR2153STR then drives the outputs of the bridge accordingly.

The IR2153STR also features an adjustable deadtime control, which provides increased efficiency and reduces switching losses. The device is also equipped with an internal overcurrent protection (OCP) circuit that monitors the voltage across the load and shuts down the device if the current exceeds the set limit. The UVLO and TSD features protect the device from operating outside of its specified temperature range.

Conclusion

The IR2153STR is a highly efficient gate driver with a wide range of applications. Its adjustable-deadtime control, OCP, UVLO, and TSD protection features make it reliable and safe in high-power applications. As one of the most popular gate drivers, the IR2153STR offers excellent performance and is ideal for motor control, medical, automotive, and solar applications.

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