SI3905DV-T1-E3

SI3905DV-T1-E3 is a type of transistor array and part of the Vishay siliconix transistor family. It consists of two half-bridge drivers with an input logic buffer and built-in protection circuitry. The half-bridge drivers consists of two N-channel. MOSFETs connected in an H-bridge configuration. The low-side driver features integrated RDS-on sensing and current re-circulating capability. The high-side driver offers an adjustable under-voltage lockout and charging function with a feature to stop the capacitor charging after a transient event. The logic buffer is a non-inverting 7-channel to 4-channel logic level translator.

SI3905DV-T1-E3 can be used in a variety of applications such as motor control, consumer electronics, motor drive and process control systems. It can be used as a power switch for a wide range of AC and DC load types, from low-cost consumer products to industrial process control applications. The integrated protection features make the SI3905DV-T1-E3 suitable for a high-voltage industrial environment. With its wide supply voltage range and input logic range, it can be easily interfaced with a variety of microcontrollers.

The working principle of SI3905DV-T1-E3 is as follows. When a logic “1” is applied to the EN input, the two half-bridge drivers are enabled, allowing the MOSFETs to turn on and off. When the logic “0” is applied to the EN input, the MOSFETs can still be turned on but they are disabled at the same time. The logic buffer is used to translate the logic “1” (high voltage) and “0” (low voltage) levels of the microcontroller interface to the logic levels of the drivers, while the current re-circulation function enables the device to automatically switch from current mode to voltage mode. The adjustable under-voltage lockout feature allows the device to be used as a general purpose power switch for a wide range of AC and DC loads.

In conclusion, SI3905DV-T1-E3 is an ideal solution for a variety of applications requiring a manageable, powerful and efficient transistor array. Its integrated protection features, wide supply voltage range and logic translator make it a reliable choice for motor control and consumer electronic applications. Its half-bridge drivers, current re-circulation and under-voltage lockout features make it suitable for both high-voltage industrial applications as well as general purpose power switches.