Nov. 2018 V1.0
Over-Voltage Protection Load Switch with Surge Protection
The AW326XX family OVP load switch features
IEC 61000-4-5: ±200V
Integrated low Rdson nFET switch: typical 33mΩ
surge protection, an internal clamp circuit protects
the device from surge voltages up to ±200V.
4.5A continuous current capability
Default Over-Voltage Protection (OVP) threshold
tia The AW326XX features an ultra-low 33mΩ (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
OVP threshold adjustable range: 4V to 20V
System ESD protection on IN pin
n withstanding fault voltages up to 29VDC.
The default OVP threshold is 5.95V (AW32601),
IEC 61000-4-2 Contact discharge: ±8kV
IEC 61000-4-2 Air gap discharge: ±15kV
Input maximum voltage rating: 29VDC
Fast turn-off response: typical 50ns
Over-Temperature Protection (OTP)
Under-Voltage Lockout (UVLO)
WLCSP 1.288mm × 1.988mm-12B package
e 6.8V (AW32605) and 10.5V (AW32610), the OVP
threshold can be adjusted from 4V to 20V through
fid external OVLO pin.
This device features over-temperature protection
that prevents itself from thermal damaging.
C Typical Application Circuit
Figure 1 AW326XX typical application circuit
R1 and R2 are used for OVP threshold adjustment, to use default OVP threshold, connect OVLO to ground.
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