IXZ631DF18N50

RF Power MOSFET & Driver

Figure 15 Test circuit

*Choke– A common-mode choke is optional and can be used to help stabilize the threshold level

due to ground bounce and to minimize false triggering.

voltage Vcc for the driver circuit. Actual values vary according to load and operating conditions. For

the driver section, tantalum capacitors are recommended for their fast energy delivery.

way of overlapping impedance curves, lowering the overall broadband impedance to ground. Typi-

cally a range of 0.1 µF, 0.01 µF, 0.001 µF capacitors in sufficient quantities give good results.

Circuit board layout should be carefully considered to optimize operation. Each of the Vcc leads on

the driver section should be treated as its own power supply lead. Bulk and bypass capacitors at-

tached between drain and source leads should be placed symmetrically between the leads. Exces-

sive parasitic inductance can result in V = L di/dt inductive voltage drops, causing unpredictable op-

eration.

MOSFET & Driver

Module

S/DGND

S/DGND