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1-8 PRODIGIT
Slew Rate:
Slew rate is defined as the change in current or voltage over time. A programmable slew rate
allows a controlled transition from one load setting to another to minimize induced voltage
drops on inductive power wiring, or to control induced transients on a test device (such as
would occur during power supply transient response testing).
In cases where the transition from one setting to another is large, the actual transition time can
be Calculated by dividing the voltage or current transition by the slew rate. The actual
transition time is Defined as the time required for the input to change from 10% to 90% or from
90% to 10% of the Programmed excursion. In cases where the transition from one setting to
another is small, the small Signal bandwidth of the load limits the minimum transition time for
all programmable slew rates. Because Of this limitation, the actual transition time is longer
than the expected time based on the slew rate, as
Shown in Figure 1-7
Fig 1-7 Rise Time Transition Limitation
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