SI823X Datasheet, PDF (32/52 Pages) Silicon Laboratories – 0.5 AND 4.0 AMP ISODRIVERS (2.5 AND 5 KVRMS)

Si823x
PWM
NC
VDDI
GNDI
DISABLE
DT
NC
VDDI
SOIC-16 (Wide)
1
16
2
15
3
14
4
Si8231 ¹³
5
Si8234
12
6
11
7
10
8
9
VDDA
VOA
GNDA
NC
NC
VDDB
VOB
GNDB
SOIC-16 (Narrow)
PWM
NC
VDDI
GNDI
DISABLE
DT
NC
VDDI
1
16
2
15
3
14
4 _Si8231 ¹³
5 ^Si8234 12
6
11
7
10
8
9
VDDA
VOA
GNDA
NC
NC
VDDB
VOB
GNDB
Table 13. Si8231/4 PWM Input HS/LS Isolated Driver (SOIC-16)
Pin Name
1 PWM PWM input.
2
NC No connection.
Description
3 VDDI Input-side power supply terminal; connect to a source of 4.5 to 5.5 V.
4 GNDI Input-side ground terminal.
5 DISABLE 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.
6
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. Defaults to 1 ns dead time when con-
nected to VDDI or left open (see "5.7.Programmable Dead Time and Overlap Protection" on
page 26).
7
NC No connection.
8 VDDI Input-side power supply terminal; connect to a source of 4.5 to 5.5 V.
9 GNDB Ground terminal for VOB driver output.
10 VOB Driver B output (low-side driver).
11 VDDB Driver B power supply voltage terminal; connect to a source of 6.5 to 24 V.
12
NC No connection.
13
NC No connection.
14 GNDA Ground terminal for Driver A.
15 VOA Driver A output (high-side driver).
16 VDDA Driver A power supply voltage terminal; connect to a source of 6.5 to 24 V.
32
Rev. 0.3