1SD1548AI

Data Sheet

I G BT - Dr i v er . c o m

Page 13

3k3

SCALE Driver

VPOS

LS

LEDOK

Insulated +16V

Ds

COM

Fig. 6 Status display with LED at pin LS

Caution:

The Schottky diode Ds should not be omitted if the local status output is used. If the

local status output is not used, LS should be connected to COM in order to increase the

noise immunity of the driver.

Pin AC: Enhanced active clamping

Pin AC allows the basic active clamping function of the driver to be improved (see

Fig. 1). If it is not used, it should be connected to VNEG.

As the appropriate dimensioning of improved active clamping is complex, time-

consuming and not necessary for most applications, CONCEPT does not support this

feature. However, if this function should be required, or for more information, please

contact CONCEPT’s technical support.

Configuration within the power section

The drivers should be located as closely as possible to the power transistors. The

connecting leads to the transistors should be as short as possible and as low inductance

as possible, i.e. they can be up to 3 cm to 10 cm long depending on the gate current

and switching speed.