TOS5400_Withstanding Voltage Test Section-Output function

AC output section (ACW only)

*1 When tests are performed consecutively, output time limit and rest time may become necessary depending on the upper limit setting.
*2Waveform distortions may occur if an EUT whose capacitance is dependent on voltage (for example, an EUT that consists of ceramic capacitors) is connected as the load. However, if the test voltage is 1.5kV, the effect of a capacitance of 1000pF or less can be ignored. Because the high-voltage power supply of the TOS54 series uses the PWM switching method, if the test voltage is 500V or less, the switching and spike noise proportions are large. The lower the test voltage, the greater the waveform is distorted.

DC output section (DCW only)

*1 When tests are performed consecutively, output time limit and rest time may become necessary depending on the upper limit setting.
*2 In the following conditions, charging current may activate a FAIL judgment or trigger the protection function. EUT capacitance: 1μF; Rise Time: 1.0 second or less; Judge Delay: 1.2 seconds or less.
*3 Maximum capacitance that can be discharged within 2 seconds in a DC withstanding voltage test. Tests can still be conducted beyond the maximum capacitance, but the discharge time will increase.

Common specifications