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120V Surge/Inrush Immunity Function, Adj OVP, 4.5A, Soft Start-Up, 28V Input with Shutdown
SGM40655 SGM40655.pdf

No.10956

FEATURES

● Protect High-Power Portable Devices

   Wide Operating Input Voltage Protection from 2.5V to 28V

   Integrated 62mΩ (TYP) N-Channel MOSFET Switch (CSP Package)

   Integrated 73mΩ (TYP) N-Channel MOSFET Switch 

   (TDFN Package)

● Flexible Over-Voltage Protection Design

   Adjustable Over-Voltage Protection Trip Level

   Wide Adjustable OVLO Threshold Range from 4V to 20V

   Internal Preset OVLO Thresholds: 5.81V (SGM40655)

● Additional Protection Features Increase System Reliability

   Surge Immunity up to +120V

   Soft-Start to Minimize In-Rush Current 

   Internal 18.5ms Startup Debounce

   Thermal Shutdown Protection

● Enable Function

● -40℃ to +85℃ Operating Temperature Range

● Available in Green WLCSP-1.30×1.83-12B and TDFN-3×3-12L 

   Packages

DESCRIPTION

The SGM40653/4/5 over-voltage protection devices feature a low 62mΩ (TYP, CSP package)/73mΩ (TYP, TDFN package) RON internal FET and protect low-voltage systems against voltage faults up to +28VDC. An internal clamp also protects the devices from surges up to +120V. When the input voltage exceeds the over-voltage threshold, the internal FET is turned off to prevent damage to the protected downstream components.

The over-voltage protection threshold can be adjusted with optional external resistors to any voltage between 4V and 20V. If the OVLO input is below the external OVLO select voltage, the SGM40653/4/5 automatically choose the internal trip thresholds. The internal over-voltage thresholds (VIN_OVLO) are preset to be 15.39V/6.8V/5.81V typical (SGM40653/4/5). The devices feature an open-drain ACOK output indicating a stable supply between minimum supply voltage and VOVLO. The SGM40653/4/5 are also protected against over-current events by an internal thermal shutdown. The SGM40653/4/5 also have enable control to reduce power consumption.

APPLICATION CIRCUIT
PIN CONFIGUTION
網站地圖
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