si8235 Silicon Laboratories, si8235 Datasheet - Page 13

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

5. Application Information
The Si823x family of isolated drivers consists of high-side, low-side, and dual low-side driver configurations.
5.1. Products
Table 8 shows the configuration and functional overview for each product in this family.
5.2. Device Behavior
Table 9 contains truth tables for the Si8230/3, Si8231/4, and Si8232/5 families.
Si8230/3 (High-Side/Low-Side) Truth Table
Si8231/4 (PWM Input High-Side/Low-Side) Truth Table
Si8232/5 (Dual Low-Side) Truth Table
VIA, VIB Inputs VDDI State Disable VOA/VOB
VIA, VIB Inputs VDDI State Disable VOA/VOB
Part Number
PWM Input
Si8230
Si8231
Si8232
Si8233
Si8234
Si8235
H
X
X
H
X
X
H
X
X
L
L
L
High-side/Low Side
High-side/Low Side
High-side/Low Side
High-side/Low Side
Unpowered
VDDI State Disable VOA/VOB
Unpowered
Unpowered
Powered
Powered
Powered
Powered
Powered
Powered
Powered
Powered
Powered
Configuration
Dual Low Side
Dual Low Side
X
H
X
H
X
H
L
L
L
L
L
L
Table 9. Si823x Family Truth Table
Table 8. Si823x Family Overview
Output
Output
Output
Protection
Overlap
Preliminary Rev. 0.11
H
H
H
L
L
L
L
L
L
L
L
L
—
—
Output transition occurs after internal dead time expires.
Output transition occurs after internal dead time expires.
Output returns to input state within 500 ns of VDDI power
restoration.
Device is disabled.
Output transition occurs after internal dead time expires.
Output transition occurs after internal dead time expires.
Output returns to input state within 500 ns of VDDI power
restoration.
Device is disabled.
Output transition occurs immediately
(no internal dead time).
Output returns to input state within 500 ns of VDDI power
restoration.
Device is disabled.
Programmable
Dead Time
—
—
Notes
Notes
Notes
VIA, VIB
VIA, VIB
VIA, VIB
VIA, VIB
Inputs
PWM
PWM
Si823x
Peak Output
Current (A)
0.5
0.5
0.5
4.0
4.0
4.0
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