The NU5721 is an over-voltage protection device designed to protect low voltage systems from damage caused by voltage surges. The NU5721 can withstand surges up to +/-120V without damage. The integrated 20 mΩ(TYP)RON FET allows it to pass through 6A continuous current. The FET is turned off when the input voltage exceeds the over-voltage threshold which can be adjusted from 4V to 20V with optional external resistors. If the OVLO input is set below the external OVLO select threshold, the NU5721 automatically choose the internal trip threshold which is preset to 6.8V typically. The open drain ACOK output indicates a stable power supply voltage which is within VUVLO and VOVLO. The NU5721 also has enable/disable control function to reduce power consumption. The NU5721 are available in FCQFN- 1.30×1.80-12B packages, and operate over an ambient temperature range of -40 to +85℃ .
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Wide Power Supply Voltage Range: 2.8V to 23V
Integrated TVS: > 120V for IEC61000-4-5
Super-fast OVLO Response Time: typical 40ns
Internal Over-Voltage Protection Thresholds:
6.8V
Wide Adjustable OVLO Threshold Range: 4V to 24V
Integrated Switch On-Resistance:
20mΩ(TYP)
Robust ESD Performance
±2KV Human Body Model (HBM)
±1KV Charged Device Model (CDM)
±200V Machine Model (MM)
System Level ESD (IEC61000-4-2)
±8 kV Contact Discharge
±15 kV Air Gap Discharge
Soft-Start Function
Enable Function: Low Active
Power switch stat indicator: ACOK
Optional external OVLO configuration
Thermal Shutdown Protection
-40 to +85 Operating Temperature Range
Available in Green FCQFN-1.30×1.80-12B
- • Smart Phone
- • Tablet PC