SI8234AB-C-IS Silicon Laboratories Inc, SI8234AB-C-IS Datasheet - Page 25

• Manufacturer Part Number: SI8234AB-C-IS
• Description: 2.5KV 4A HIGH SIDE/LOW SIDE ISOLATED DRIVER ("ISODRIVER"), P
• Manufacturer: Silicon Laboratories Inc

Specifications of SI8234AB-C-IS

• Configuration: High and Low Side, Independent
• Input Type: PWM
• Delay Time: 60ns
• Current - Peak: 4A
• 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

3.7.3. Undervoltage Lockout (UVLO)
The UVLO circuit unconditionally drives VO low when VDD is below the lockout threshold. Referring to Figures 36
through 39, upon power up, the Si823x is maintained in UVLO until VDD rises above VDD
the Si823x enters UVLO when VDD falls below the UVLO threshold plus hysteresis (i.e., VDD < VDD
VDD
Figure 36. Si823x UVLO Response (5 V)
6.0
Figure 37. Si823x UVLO Response (8 V)
HYS
3.5
).
6.5
4.0
Supply Voltage (V
Supply Voltage (V
7.0
4.5
7.5
5.0
8.0
5.5
DD
DD
8.5
6.0
- V
V
- V
DDUV+
V
DDUV+
SS
SS
9.0
6.5
(Typ)
) (V)
) (V)
(Typ)
9.5 10.0
7.0
7.5
Rev. 1.1
Figure 39. Si823x UVLO Response (12.5 V)
11.3
Figure 38. Si823x UVLO Response (10 V)
8.5
11.8
9.0
Supply Voltage (V
Supply Voltage (V
12.3 12.8 13.3 13.8 14.3 14.8 15.3
9.5
10.0 10.5 11.0 11.5 12.0 12.5
DD
DD
UV+
- V
- V
V
. During power down,
DDUV+
SS
SS
V
DDUV+
) (V)
) (V)
(Typ)
(Typ)
Si823x
UV+
25
–