SI8233 Datasheet, PDF (36/57 Pages) Silicon Laboratories – 0.5 AND 4.0 AMP ISODRIVERS

Si823x
Pin
GNDI
PWM
NC
VDDI
DISABLE
DT
VDDI
GNDB
VOB
VDDB
NC
GNDA
VOA
VDDA
LGA-14 (5 x 5 mm)
GNDI ¹
PWM ²
NC ³
VDDI 4
DISABLE 5
Si8234
14 _VDDA
13 _VOA
12 _GNDA
11 _NC
10 VDDB
DT ⁶
VDDI 7
7 _VOB
8 GNDB
Table 15. Si8234 PWM Input HS/LS Isolated Driver (14 LD LGA)
Name
1
2
3
4
5
6
7
8
9
10
11
12
13
Description
Input-side ground terminal.
PWM input.
No connection.
Input-side power supply terminal; connect to a source of 4.5 to 5.5 V.
Device Disable. When high, this input unconditionally drives outputs VOA, VOB LOW.
It is strongly recommended that this input be connected to external logic level to avoid
erroneous operation due to capacitive noise coupling.
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. Defaults to 400 ps
dead time when connected to VDDI or left open (see "3.8. Programmable Dead Time
and Overlap Protection" on page 28).
Input-side power supply terminal; connect to a source of 4.5 to 5.5 V.
Ground terminal for Driver B.
Driver B output (low-side driver).
Driver B power supply voltage terminal; connect to a source of 6.5 to 24 V.
No connection.
Ground terminal for Driver A.
Driver A output (high-side driver).
14 Driver A power supply voltage terminal; connect to a source of 6.5 to 24 V.
36
Rev. 1.7