Keithley 4200A-SCS Reference Manual page 952

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Model 4200A-SCS Parameter Analyzer Reference Manual

pulse_limits

This command sets measured voltage and current thresholds at the DUT and sets the power threshold for each

int pulse_limits(int instr_id, int chan, double V_Limit, double I_Limit, double

Power_Limit);

This feature differs from a SMU compliance setting in that threshold checking is done after each burst

of pulses, using the spot mean values to compare to the specified thresholds. The thresholds are

checked against all enabled measurements for the channel. If a threshold is reached or exceeded,

the present sweep is stopped and testing continues with any subsequent sweeps.

This feature does not prevent the set thresholds from being reached or exceeded. After detecting a

threshold breach, it aborts the sweep.

Maximum power for each PMU source range:

High-speed voltage source (10 V) range: Maximum power = 5 V x 0.1 A = 0.5 W

High-voltage source (40 V) range: Maximum power = 20 V x 0.4 A = 8 W

pulse_limits(PMU1, 1, 42, 1, 10);

This example sets thresholds for channel 1 of the PMU, where:

instr_id = PMU1

chan = Channel 1

V_Limit = 42 V

I_Limit = 1 A

Power_Limit = 10 W

4200A-901-01 Rev. C / February 2017

The instrument identification code: PMU1, PMU2, and so on

Channel number of the pulse card: 1 or 2

Measured voltage (V) threshold at the DUT

Measured current (A) threshold at the DUT

Power (W) threshold for the channel (Power = V

Section 13: LPT library function reference