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TPS1HTC30-Q1: Current source for inductive loads

Part Number: TPS1HTC30-Q1

Tool/software:

Hi

For industrial application, I would like to know if it is possible to use the TPS1HTC30-Q1 to drive an output:

  • either in current source mode to drive inductive loads with an adjustable current (0-1A) whose setpoint would be a voltage
  • or in on/off mode (24V/high impedance)
  • Hi Jerome, 

    Yes our automotive high side switches can be used in industrial applications, and we see customers do that. The difference between our automotive and industrial switches are typically the standards we test them to and the operating current range. As long as the TPS1HTC30 satisfies your system in terms of standard and operating range, there should be no issue in using this device as a high side switch. 

    • My confusion with your first bullet point is the statement "current source mode" "whose setpoint would be a voltage". TI's High Side Switches manage power distribution for subsystems by delivering power to offboard loads. They are able to do this due to their internal clamp which allows for safe dissipation of inductive energy to enable off board load driving. These devices have integrated current limiting rather than slew rate control, accurate current sensing, and thermal shutdown, but do not source current necessarily. These figures below in the datasheet might provide more clarity: 
    • If an adjustable current limit switch is needed to drive inductive loads which clamps based on the current, not the voltage, the high side switch mentioned can be used

    • Yes the device can turn on and off a 24V load. The device does have integrated open-load detection so if the output has high enough impedance to trigger this, the device will trigger a fault

    Best Regards, 

    Elizabeth