LT3092 output minimum current

LT3092 is used to excite the ICP vibration sensor. The current output current is set at 150uA. According to the manual, the minimum output current is 0.5mA.Will it damage the chip?If this is not appropriate, what is the recommended constant current source for the output current of about 100uA?

This is the description in the manual:

Note 3: Minimum load current is equivalent to the quiescent current of

The part Since all quiescent and drive current is delivered to the output

Of the part, the minimum load current is the minimum current required to

Maintain regulation.

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  • 0
    •  Analog Employees 
    on Aug 19, 2019 2:09 AM

    Device will not regulate with current output set to lower than 0.5mA as indicated on the datasheet.

    *Page 8 of the datasheet,

    PIN FUNCTIONS
    OUT (Pins 1, 2/Pin 2/Pins 2, 3, 4): Output. This is the power output of the device. The minimum current source value to which the LT3092 can be set is 0.5mA or the device will not regulate.

Reply
  • 0
    •  Analog Employees 
    on Aug 19, 2019 2:09 AM

    Device will not regulate with current output set to lower than 0.5mA as indicated on the datasheet.

    *Page 8 of the datasheet,

    PIN FUNCTIONS
    OUT (Pins 1, 2/Pin 2/Pins 2, 3, 4): Output. This is the power output of the device. The minimum current source value to which the LT3092 can be set is 0.5mA or the device will not regulate.

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