Data Sheet

Impedance

[Fig. 7 – Power circuit impedance]

These imaginary impedances R0…R6 were deducted from the following operating conditions:

input voltage 24V, current 23A (100% of duty cycle). In other words, the voltage drop between

the input GND and the output terminals was measured and the impedance was calculated:

R

0

= ~3.61mΩ, R

1

….R

6

= ~56.7mΩ.

Protection

● Input polarity protection. By reversing the potential between V+ and GND, the protection

completely disconnects the GND, including from the outputs (since the device is

Low-Side type). This ensures that no negative current is supplied to the outputs.

● Fifth-level current protection (for more details, see Current, limits and protection).

● Logic circuits 5V overvoltage protection with 5V6 TVS.

● Logic circuits overcurrent protection with 0.5A PPTC at +85°C (at higher temperatures,

overcurrent protection may be activated at a lower current).

● V+ input ESD (and short overvoltage peaks) protection with bipolar 33V TVS

component.

● All signal inputs and outputs have ESD HBM JESD22-A114F protection up to 2000V.

FeedBacks

LEDs on board

● Green – Power okay; +5V logic voltage supply is present (higher than 4V)

● Blue – Overcurrent indicator; flashes when (pulsed or constant) input current is higher

than about 20A