| Default OVP Threshold (V) |
6.8 |
| Number of PIN |
12 |
| Surge Protection (V) |
100 |
| Continuous current of switch IN-OUT （Max）（A） |
5 |
| Ron (mΩ) |
27 |
| Input DC Withstand Voltage (V) |
29 |
| OVP Response Time (ns) |
70 |
| Temperature |
-40℃~85℃ |
| IO Level (V) |
1.8<br>3.3 |
| Package (mm) |
FCQFN 1.3X1.8-12L |
Highly reliable FCQFN 1.3mm×1.8mm-12L package
Surge protection
IEC 61000-4-5: > 100V
Integrated low Rdson nFET switch: typical 33m
5A continuous current capability
Default Over-Voltage Protection threshold
AW3291XA: 6.8V
OVP threshold adjustable range: 4V to 24V
Input system ESD protection
IEC 61000-4-2 Contact discharge: ±8kV
IEC 61000-4-2 Air gap discharge: ±15kV
Input voltage: 28VDC
Fast turn-off response: typical 70ns
Over-Temperature Protection (OTP)
Under-Voltage Lockout (UVLO)
AW3291XA family OVP load switch features surge protection, an internal clamp circuit protects the device from surge voltages up to 100V.
AW3291XA features an ultra-low 33m (typ.) Rdson nFET load switch. When input voltage exceeds the OVP threshold, the switch is turned off very fast to prevent damage to the protected downstream devices. The ＩＮ pin is capable of withstanding fault voltages up to 28VDC.
The default OVP threshold is 6.8V (AW3291XA), the OVP threshold can be adjusted from 4V to 24V through external OVLO pin.
The device features an open-drain output ACOKB, when VIN_UVLO< VIN < VIN_OVLO ａｎｄ the switch is on, ACOKB will be driven low to indicate a good power input, otherwise it is high impedance.
This device features over-temperature protection that prevents itself from thermal damaging.
