NIS54xxGEVB
http://onsemi.com
NIS545x Hot Plug Power On into a Short Circuit
Use jumpers J2 (10 Ω), J1 (545x), J4, J6, and J13.
Short circuit the output and manually take the 5 V
power cable and plug it into the demo board. The eFuse briefly turns on and conducts at the short circuit current
limit level. After some time the eFuse reaches the thermal shutdown level and latches off. An auto-retry eFuse
(MT2 part number suffix) does not latch and automatically cycles the enable pin. For auto-retry eFuses the demo
board’s green and yellow indicator enable pin indicator LEDs will flash as the enable pin cycles between states.
Figure 15. This shows a hot plug test into a short circuit. The input cable is manually plugged
into the board. The eFuse limits the current, enters thermal shutdown, and latches off. Auto-retry
devices such as the NIS5450MT2 will not latch off.
