TPC8408,LQ(S

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The TPC8408, LQ is a four-channel high-speed, low-side switch array which features high-side switch array functions. It is capable of providing high-speed switching for standard load current with very low on-state resistance. The switch array includes two N-channel Logic Array and two P-channel Logic Array (PA1 and PA2). The switch array is ideal for applications such as current loop control of DC motors, switching multiple loads, H-bridge control and on/off control for various circuits.

TPC8408, LQ can operate up to 375mA peak current, 100V maximum voltage and +25mΩ(max) on-state resistance. It is available in a small 8-lead SOP package (1mm height). It is designed with a built-in thermal protection, under-voltage lockout, and logic level converter. In addition, TPC8408, LQ has integrated cascadability up to 4 channels.

The working principle of TPC8408, LQ is based on FETs and CMOS circuits. FETs are used as a low-side switch array, which ensures fast and low-loss operations. The two N-channel Logic Array and two P-channel Logic Array (PA1 and PA2) play a major role in providing the functions of the switch array. They act as logic level converters, under-voltage lockout, and thermal protection. The N-channel Logic Array provides the control for the switch operations, while the P-channel Logic Array offers protection from power-on reset and thermal shutdown. The switches are then operated by the logic signals generated from the N-channel Logic Array.

TPC8408, LQ is commonly used in automotive applications such as Current Loop Control (CLC) systems, air conditioners and engine control. It is also used in other applications such as industrial robots, intelligent lighting systems, smart appliances, and home automation. Furthermore, it is also suitable for use in mobile devices where low-cost, high-speed and high-power switching is required.

In conclusion, the TPC8408, LQ is an excellent choice for those looking for an efficient and low-loss switching array solution. It incorporates a built-in thermal protection, under-voltage lockout, logic level converter, and cascadability up to 4 channels. It is also used in many applications like automotive, industrial and home automation, and can be used both in mobile devices as well as large-scale electronic systems. As stated, TPC8408, LQ is a versatile low-side switch array suitable for various applications.

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