Si8231-A-IS Silicon Laboratories Inc, Si8231-A-IS Datasheet - Page 25

• Manufacturer Part Number: Si8231-A-IS
• Description: MOSFET & Power Driver ICs 0.5A PWM Input
• Manufacturer: Silicon Laboratories Inc
• Type: High and Low Sider

Specifications of Si8231-A-IS

• Rise Time: 12 ns
• Fall Time: 12 ns
• Propagation Delay Time: 50 ns
• Supply Voltage (max): 24 V
• Supply Voltage (min): 10 V
• Supply Current: 11 mA
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-16
• Bridge Type: Half Bridge
• Minimum Operating Temperature: - 40 C
• Number Of Drivers: 2
• Number Of Outputs: 2
• Output Current: 0.5 A
• 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
–