SI8231AB-B-IS Silicon Laboratories Inc, SI8231AB-B-IS Datasheet - Page 20

• Manufacturer Part Number: SI8231AB-B-IS
• Description: 2.5KV 0.5A HIGH SIDE/LOW SIDE ISOLATED DRIVER ("ISODRIVER"),
• Manufacturer: Silicon Laboratories Inc

Specifications of SI8231AB-B-IS

• Configuration: High and Low Side, Independent
• Input Type: PWM
• Delay Time: 60ns
• Current - Peak: 500mA
• Number Of Configurations: 2
• Number Of Outputs: 4
• High Side Voltage - Max (bootstrap): 1500V
• Voltage - Supply: 6.5 V ~ 24 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Si823x
3.3. Family Overview and Logic Operation During Startup
The Si823x family of isolated drivers consists of high-side, low-side, and dual driver configurations.
3.3.1. Products
Table 9 shows the configuration and functional overview for each product in this family.
3.3.2. Device Behavior
Table 10 contains truth tables for the Si8230/3, Si8231/4, and Si8232/5/6 families.
20
*Note: This truth table assumes VDDA and VDDB are powered. If VDDA and VDDB are below UVLO, see
Part Number
VIA
PWM Input
H
H
Si8235/6
L
L
X
X
Si8230
Si8231
Si8232
Si8233
Si8234
Inputs
"3.7.2.Undervoltage Lockout" on page 24 for more information.
H
X
X
L
VIB
H
H
X
X
L
L
High-Side/Low-Side
High-Side/Low-Side
High-Side/Low-Side
High-Side/Low-Side
VDDI State Disable
Unpowered
VDDI State Disable
Unpowered
Powered
Powered
Powered
Powered
Powered
Powered
Powered
Powered
Configuration
Dual Driver
Dual Driver
Si8231/4 (PWM Input High-Side/Low-Side) Truth Table
Si8230/3 (High-Side/Low-Side) Truth Table
Table 10. Si823x Family Truth Table*
X
H
X
H
L
L
L
L
L
L
Table 9. Si823x Family Overview
VOA
VOA
Protection
H
H
L
L
L
L
L
L
L
L
Overlap
Output
Output
—
—




VOB
VOB
Rev. 1.1
H
H
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 transition occurs after internal dead time
expires.
Invalid state. Output transition occurs after internal
dead time expires.
Output returns to input state within 7 µs 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 7 µs of VDDI
power restoration.
Device is disabled.
Programmable
Dead Time
—
—




Notes
Notes
VIA, VIB
VIA, VIB
VIA, VIB
VIA, VIB
Inputs
PWM
PWM
Peak Output
Current (A)
0.5
0.5
0.5
4.0
4.0
4.0