Over-Voltage Protection Load Switch with Surge Protection

The AW32910 family OVP load switch features surge protection, an internal clamp circuit protects the device from surge voltages up to 120V. The AW329xx features an ultra-low 27mΩ(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 29VDC. The default OVP threshold is 5.95V (AW32901), 6.2V (AW32902), 6.8V (AW32905), 9.98V (AW32909), 10.5V (AW32910) and 14V (AW32912), the OVP threshold can be adjusted from 4V to 20V through external OVLO pin. The device features an open-drain output ACOK, when VIN_UVLO  < VIN  < VIN_OVLO and the switch is on, ACOK 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. The AW32910 is available in a RoHS compliant 1.3mm ×1.8mm FCQFN-12 package.


l  Highly reliable 1.3mm ×1.8mm FCQFN-12 package

l  Surge protection

n  IEC 61000-4-5: > 120V

l  Integrated low Rdson nFET switch: typical 27mΩ

l  5A continuous current capability

l  Default Over-Voltage Protection (OVP) threshold

n  AW32910: 10.5V

l  OVP threshold adjustable range: 4V to 20V

l  Input system ESD protection

n  IEC 61000-4-2 Contact discharge: ±8kV

n  IEC 61000-4-2 Air gap discharge: ±15kV

l  Input maximum voltage rating: 29VDC

l  Fast turn-off response: typical 50ns

l  Over-Temperature Protection (OTP)

l  Under-Voltage Lockout (UVLO)


Application note

Product name Type Size Download
AW32912FCR,AW32910FCR,AW32909FCR,AW32905FCR,AW32902FCR,AW32901FCR PDF 1M
  • Default OVP Threshold (V)
    Surge Protection (V)
    Switch on Resistance (mΩ)
    Input DC Withstand Voltage (V)
    OVP Response Time (ns)
    Package (mm)
Package form Number of pins Long(mm) Width(mm) Thick(mm) Pin spacing(mm) Heat sink Package drawing
FCQFN 1.8×1.3×0.55-12L 12 1.8 1.3 0.55 0.4 N
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