Si8244 SILABS [Silicon Laboratories], Si8244 Datasheet - Page 24

• Manufacturer Part Number: Si8244
• Description: CLASS D AUDIO DRIVER WITH PRECISION DEAD-TIME GENERATOR
• Manufacturer: SILABS [Silicon Laboratories]

Si824x
5. Pin Descriptions
24
Pin
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
DISABLE Device Disable. When high, this input unconditionally drives outputs VOA, VOB LOW. It is
GNDB
GNDA
Name
VDDB
VDDA
GNDI
PWM
VDDI
VDDI
VOB
VOA
NC
NC
NC
NC
DT
PWM input.
No connection.
Input-side power supply terminal; connect to a source of 4.5 to 5.5 V.
Input-side ground terminal.
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 1 ns dead time when con-
nected to VDDI or left open (see "3.8.Programmable Dead Time and Overlap Protection" on
page 22).
No connection.
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.
No connection.
Ground terminal for Driver A.
Driver A output (high-side driver).
Driver A power supply voltage terminal; connect to a source of 6.5 to 24 V.
Table 11. Si8241/44 PWM Input HS/LS Isolated Driver (SOIC-16)
DISABLE
GNDI
PWM
VDDI
VDDI
NC
NC
DT
SOIC-16 (Narrow)
Rev. 0.2
1
2
3
4
5
6
7
8
Si8241/44
Description
15
13
12
11
10
16
14
9
VDDA
VOA
GNDA
NC
NC
VDDB
VOB
GNDB