SI82390AD-IS Datasheet, PDF (29/38 Pages) Silicon Laboratories – 4.0 A ISODrivers with 2.5 V VDDI and Safety Features

6. Pin Descriptions
Si8239x Data Sheet
Pin Descriptions
Figure 6.1. Si8239x SOIC-16
Table 6.1. Pin Descriptions
Pin Name
Description
GNDI Input-side ground terminal.
VIA Non-inverting logic input terminal for Driver A.
VIB Non-inverting logic input terminal for Driver B.
VDDI Input-side power supply terminal; connect to a source of 2.5 to 5.5 V.
EN Device ENABLE. When low or NC, this input unconditionally drives outputs VOA, VOB LOW. When high, device is ena-
bled to perform in normal operating mode. It is strongly recommended that this input be connected to external logic level
to avoid erroneous operation due to capacitive noise coupling.
DT Dead time programming input. The value of the resistor connected from DT to ground sets the dead time between output
transitions of VOA and VOB.
NC No connection.
GNDB Ground terminal for Driver B.
VOB Driver B output (low-side driver).
VDDB Driver B power supply voltage terminal; connect to a source of 6.5 to 24 V.
GNDA Ground terminal for Driver A.
VOA Driver A output (high-side driver).
VDDA Driver A power supply voltage terminal; connect to a source of 6.5 to 24 V.
RDY
Power ready on secondary side for Driver A and Driver B (both UVLO thresholds for VDDA and VDDB need to be
crossed). High state indicates UVLO thresholds crossed, low state indicates UVLO low condition. No reset is necessary.
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