SN75472D

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The SN75472D is a complimentary Industrial Standard Device(ISD) driver by Texas Instruments (TI). It is one of the generations of TI\'s highly successful IDD family which are ideal for systems requiring low power consumption, low input current and high output current. This device is an interface, drivers, receivers, and transceivers integrated circuit and has a wide range of applications. In this article, the applications and working principles of SN75472D are discussed.

Application fields of SN75472D

Applications of SN75472D include digital logic and signal switching, data conversion, programmable logic controllers (PLCs), industrial controls, power control systems, instrumentation systems and many more. Generally speaking, it is used in low power signal and logic applications and in digital logic and signal switching. SN75472D, also known as an integrated circuit transmitter/receiver (ICRT), is mainly used to output digital signals and can be used to drive digital signal from various devices from low to medium power applications.

SN75472D is used to drive both cyclic and non-cyclic signals and works perfectly in applications where high resistance is frequent such as pilot and signal control. The device has protective features such as reverse voltage protection, power supply voltage regulation, fail-safe outputs and sine wave voltage shift. It is also safe to use in case of reverse battery supply and current can be constrained to both input and output sides.

The SN75472D is used in a variety of applications, such as power and current control, motor speed control and signal switching. In addition, the device is used in mobility applications such as electric vehicles, power wheelchairs, boats, off-road vehicles and other remote control devices.

Working principles of SN75472D

The SN75472D circuit is designed as a complementary ISD driver, which combines current-to-voltage signal conversion, signal conditioning, and standard digital logic functions. It consists of two N-channel enhancement mode MOS transistors, one p-channel enhancement mode MOS transistor, one current limiting resistor and two capacitors. The circuit is designed to drive digital signals from the input side to the output side with very low current consumption.

The device operates at a maximum supply voltage of 5V and a supply current of around 5 mA, consuming very less power when compared to other drivers. At the input side, the SN75472D input current limiting resistor (also called the Input Limiting Resistor) is used to reduce the input current when the input voltage exceeds the device\'s supply voltage. The Input Limiting Resistor also serves to protect the device against input signals which contain high currents.

The SN75472D incorporates current-to-voltage signal conversion in order to drive the output signal from the input side to the output side. This signal is then conditioned by the two capacitor banks and the output side is then driven out from the output side of the device. The two capacitor banks provide EMI protection and also reduce high frequency noise from the device. Furthermore, the device has power supply voltage regulation, reverse voltage protection and fail-safe outputs.

In addition, the SN75472D also features a voltage shifting capability which enables the device to operate safely in the presence of a high resistance, thereby making it suitable for use in pilot and signal control applications. The voltage shifting capability also ensures that the device operates safely even when reverse batteries are connected.

The SN75472D offers a very low power consumption and is therefore ideal for applications requiring low current consumption, low input current and high output current. It is also used in applications where high resistance is frequent and offers protection from reverse battery connection. The SN75472D is also suitable for use in digital logic and signal switching applications. Furthermore, the device is used in mobility applications such as electric vehicles, power wheelchairs, boats, off-road vehicles and other remote control devices.

In summary, the SN75472D is a complimentary ISD driver by Texas Instruments (TI). It is used in low power signal and logic applications as well as digital logic and signal switching. It has protective features such as reverse voltage protection, power supply voltage regulation, fail-safe outputs and voltage shifting capability. It is used in applications such as digital logic and signal switching, data conversion, programmable logic controllers (PLCs), industrial controls, power control systems, instrumentation systems, power and current control and motor speed control. The SN75472D is an ideal device for applications requiring low power consumption, low input current and high output current.

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