L9339-TR

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The Linear L9339-TR is a low-side MOSFET driver for high-speed switching operations in automotive and industrial applications. This device is designed to maximize switch integration in applications such as motor control, DC-DC converters, and power conversion. It features an integrated low on-resistance gate driver, which allows for high frequency operation up to 500 kHz, making it ideal for high-efficiency power conversion applications. The device offers protection features such as short circuit protection, reverse voltage protection and over-temperature protection. In addition, the device is AEC-Q100 qualified.

Application Field

The L9339-TR is a versatile power switching device and is a suitable choice for many automotive and industrial applications. It is ideal for automotive motor control, DC-DC converters, and power conversion. For example, it can be used in powertrain applications such as airbag squibs, pumps, and diagnostic modules. In addition, the device can be used in a wide range of other industrial applications such as pumps, valves, blowers, and industrial robots.

Working Principle

The L9339-TR is a CMOS low-side MOSFET driver that features an integrated low on-resistance gate driver. The device can drive a low-side N-channel MOSFET with a maximum continuous load current of 2.8 A. The device has a switching frequency of up to 500 kHz and a fast rise and fall time. In addition, the device features a variety of protection features such as reverse voltage protection and thermal shutdown. The device can operate over an extended temperature range of -40°C to 150°C.

The device features an integrated short circuit protection circuit which helps protect the device from short circuits and overload conditions. The device also features an over-temperature protection circuit which helps protect against excessive temperature conditions. In addition, the device features an integrated reverse voltage protection circuit which helps protect against reverse voltage conditions.

The device includes a Fault Logic output signal which can be used to detect any fault conditions. Additionally, the device includes a Gate Drive output signal which can be used to control the gate signal of the MOSFET. The gate drive voltage is adjustable with an external resistor, allowing for maximum drive capability.

Conclusion

The Linear L9339-TR is a low-side MOSFET driver which has been designed to maximize switch integration and is suitable for many automotive and industrial applications. It has a maximum continuous load current of 2.8A, a switching frequency up to 500kHz, a fast rise and fall time, and a variety of protection features. The device is AEC-Q100 qualified and has achieved a high level of safety compliance. In summary, the L9339-TR is the ideal choice for high-efficiency power switching applications.

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