Application information

VND670SP

14/20

Figure 9.

Waveforms (1)

Table 13.

Electrical transient requirements

ISO T/R

7637/1

Test pulse

Test level

I

II

III

IV

Delays and impedance

1.

All functions of the device are performed as designed after exposure to disturbance.

2ms, 10

Ω

2

0.2ms, 10

Ω

3a

0.1µs, 50

Ω

3b

0.1µs, 50

Ω

100ms, 0.01

Ω

2.

One or more functions of the device is not performed as designed after exposure and cannot be returned to

proper operation without replacing the device.

400ms, 2

Ω

normal operation

normal operation

undervoltage shutdown

load connected

PWM

(test mode)

load disconnected

load connected back