Over-Voltage Protection Switch

Manufacturer's part number :

AAT4684ITP-T1

Manufacturer Skyworks

Skyworks

Description :

The AAT4684 OVPSwitch™ is a member of Skyworks' Application Specific Power MOSFET™ (ASPM™) product family. It is a P-channel MOSFET power switch with precise over-voltage protection control, designed to protect low-voltage systems against high-voltage faults up to +28V. If the input voltage exceeds the programmed over-voltage threshold, the P-channel MOSFET switch will be turned off to prevent damage to the output load circuits. The AAT4684 is available with an internally programmed over-voltage trip point or as an adjustable version programmed by two external resistors.

The AAT4684 also includes an under-voltage lockout (UVLO) protection circuit, which will put the device into sleep mode at low input voltages only consuming < 1μA of current.

The AAT4684 is offered in a small Pb-free, 12-pin TSOPJW package and is specified for operation over the -40°C to +85°C ambient temperature range.

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    Features

    • Over-Voltage Protection Up to +28V
    • Fixed or Adjustable Over-Voltage Protection Threshold
    • 3V Under-Voltage Lockout Threshold
    • Fast OVP Response:
    • 1μs (Max) to Over-Voltage Transient
    • Low Operation Quiescent Current
    • 30μA Typical
    • 1μA Max in Shutdown (Disabled)
    • 100m Typical (130m max) RDS(ON) at 4.5V
    • 1.8A Maximum Continuous Current
    • Temperature Range: -40°C to 85°C
    • Available in TSOPJW-12 Package

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Number of Channels 1  

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Fault Flag Yes  
Typical Quiescent Current (µA) 30  
Typical On-Resistance (mΩ) 100  
Package (mm) TSOPJW-12