Tdelay - Keithley S530 User Manual

Section 3: Test subroutine library reference
Example
result = rvdp(pin1, pin2, pin3, pin4, sub, itest, &ratio)
Schematic

tdelay

This subroutine calculates the delay time, in seconds, for the number of pins, current, and voltage specified as
input parameters.
Usage
double tdelay(int npin, double i, double v)
npin
i
v
Returns
Details
This subroutine calculates the delay based on system capacitance, leakage currents, and the number
of pins connected to the source.
The tdelay subroutine differs from the kdelay subroutine because kdelay calculates and provides
a delay, but tdelay simply returns a value that can be passed into LPTLib calls such as sweepX and
searchX to provide an appropriate delay. See the discussion in the
for more information.
Example
delay_time = tdelay(npin, i, v)
3-60
S530 Parametric Test System Test Subroutine Library User's Manual
Input The number of pins connected to the charging node
Input The current, in amperes
Input The voltage, in volts
Output The calculated delay time
kdelay (on page 3-47) subroutine
S530-907-01 Rev. A / September 2015