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          High-Current Over-Voltage Protector
          High-Current Over-Voltage Protector

          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.

          The SGM40653/4/5 are available in Green TDFN-3×3-12L and WLCSP-1.30×1.83-12B packages, and operate over an ambient temperature range of -40 to +85.



          • 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:
              15.39V (SGM40653)
               6.8V (SGM40654)
               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


          Smart Phones
          Tablet PCs
          Mobile Internet Devices

          Part NumberStatusPackagePinsPb-FreeTemp Range
          SGM40655YG/TRProductionWLCSP-1.30×1.83-12B12Y-40℃ to +85℃
          SGM40655YTDF12G/TRProductionTDFN-3×3-12L12Y-40℃ to +85℃