LMH6581VS/NOPB

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LMH6581VS/NOPB Application Field and Working Principle

The LMH6581VS/NOPB is a high performance, ultra high speed differential triple rail-to-rail switching FET driver from Texas Instruments. It supports the voltage supply range from 3.3V to 30V and drives up to 13A with a rise/fall time of only 12ns. This device is specifically designed for the applications of automotive body electronics, industrial control, and medical imaging, etc. It is available in the SSSOP16, X2SON16 and X2SON14 packages.

Application Field

Due to the ultra high speed and the high performance, the LMH6581VS/NOPB is particularly suitable for high-end applications, including mission-critical industrial automation systems and serving as a bridge between the power switches and the ECU. It is also used in a variety of switching applications such as power rail switching for data processors, current control for multiple motors, and power management for automotive body electronics.

Working Principle

The LMH6581VS/NOPB works by building a low impedance link between two logic-level signals and converting them into triple rail-to-rail signals. The device supports a voltage supply range from 3.3V to 30V and drives up to 13A. It features an output slew rate of 10V/ns, a peak output current of 13A and a rise/fall time of 12ns. Additionally, the device has several features that offer robust protection against fault conditions, such as overheating, overvoltage and overcurrent.

The LMH6581VS/NOPB has an internal high speed built-in switch, allowing it to quickly switch between two stages. The first stage, EN, allows the user to control whether the output pins are enabled or disabled. The second stage, OE, can be used as an output enable pin to control the state of the outputs. The user can also put the OE in high ohm ultra low impedance mode, and then the device can be used as a low noise amplifier.

The device also includes an input voltage monitor to ensure that the voltage is within the safe operating range. The voltage is monitored on all three pins of the device, and if the voltage is out of range, it can be reset using the PGOOD pin. Additionally, the device features additional protection against ESD and EMI.

Conclusion

The LMH6581VS/NOPB is a high performance, ultra high speed differential triple rail-to-rail switching FET driver from Texas Instruments. It supports the voltage supply range from 3.3V to 30V and drives up to 13A with a rise/fall time of only 12ns and it has several features that offer robust protection against fault conditions, such as overheating, overvoltage and overcurrent. This device is suitable for mission-critical industrial automation systems and serves as a bridge between the power switches and the ECU.

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