si8235 Silicon Laboratories, si8235 Datasheet - Page 6

• Manufacturer Part Number: si8235
• Description: 0.5 And 4.0 A Isodrivers
• Manufacturer: Silicon Laboratories

Si823x
2. Pin Descriptions
6
Pin
Pin
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
DISABLE Device Disable. When high, this input unconditionally drives outputs VOA, VOB LOW. It is
DISABLE Device Disable. When high, this input unconditionally drives outputs VOA, VOB LOW. It is
GNDB
GNDA
Name
VDDB
VDDA
Name
GNDI
GNDI
VDDI
VDDI
PWM
VDDI
VOB
VOA
VIA
VIB
NC
NC
NC
NC
NC
DT
DT
Non-inverting logic input terminal for Driver A.
Non-inverting logic input terminal for Driver B.
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 7 ns dead time when con-
nected to VDDI or left open (see "5.7.Programmable Dead Time and Overlap Protection" on
page 16).
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 10 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 10 to 24 V.
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 7 ns dead time when con-
nected to VDDI or left open (see "5.7.Programmable Dead Time and Overlap Protection" on
page 16).
No connection.
Table 2. Si8231/4 PWM Input HS/LS Isolated Driver
Table 1. Si8230/3 Two-Input HS/LS Isolated Driver
Preliminary Rev. 0.11
Description
Description