LTC4362CDCB-2

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The LTC4362CDCB-2 is a high voltage bidirectional power switch that is ideal for automotive and automotive-related applications that require extremely high temperatures. It is a two-part solution consisting of an LTC4362CDCB-2 integrated power device and a power FET, which together create a bidirectional isolated SCR powering device.

The LTC4362CDCB-2 includes two complementary SCRs, one for positive voltage and one for negative voltage, in addition to two schottky diodes for protection. It supports a wide operating temperature range of -40°C to 125°C and is designed to meet the automotive AEC-Q101 requirements. The LTC4362CDCB-2 is available in a 7-pin Dual In-line Package (DIP).

Application Field

The LTC4362CDCB-2 is a great solution for automotive power conversion applications because it offers low RDS(ON) and low gate charge. It is also ideal for battery management applications. The device enables bidirectional power flow and can be used to directly drive high voltage applications in automotive environments, such as start-stop systems, fuel gauges, and charging systems. It can also be used for other automotive applications such as electric power steering, powertrain control, and engine control.

Working Principle

The LTC4362CDCB-2 functions as two SCRs, one for each rail, that can be switched from one side of the power rail to the other. It has a low turn-on voltage rating of 1.14V and a low turn-off voltage rating of 0.76V. This helps to keep the power rail in an efficient state, where power is supplied only when absolutely necessary.

The LTC4362CDCB-2 also features a thermal limiting feature to protect against high temperature conditions, as well as an overvoltage protection. Its high efficiency over both positive and negative voltages reduces the power consumed and increases the battery life of the system. Furthermore, the device features a low dropout voltage, which helps to ensure that the power rail is consistently supplied with the necessary voltage.

Conclusion

The LTC4362CDCB-2 is an ideal solution for automotive and automotive-related applications that require extremely high temperatures, as it supports very low turn-on and turn-off voltages and is designed to meet the automotive AEC-Q101 requirements. Its low dropout voltage and thermal limiting feature ensure a reliable and efficient power delivery. Additionally, its high efficiency over both positive and negative voltages reduces power consumption, extending the life of the system. All these features make the LTC4362CDCB-2 an ideal choice for automotive power conversion applications.

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