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          SGM2558

          SGM2558
          Dual-Channel Power Distribution Switch
           
          Dual-Channel Power Distribution Switch
          GENERAL DESCRIPTION

          The SGM2558 is a high-side MOSFET switch optimized for general-purpose power distribution requiring circuit protection. A built-in charge pump is used to drive the MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch.

          The SGM2558 is internally current limited and has thermal shutdown that protects the device and load. The SGM2558 offers “smart” thermal shutdown that reduces current consumption in fault modes. When a thermal shutdown fault occurs, the output is latched off until the faulty load is removed. Removing the load or toggling the enable input will reset the device output.

          This device employs soft-start circuitry that minimizes inrush current in applications where highly capacitive loads are employed. The FAULT output asserts low during over-current and thermal shutdown conditions. Transient faults are internally filtered.

          The SGM2558 is available in Green SOIC-8 and TDFN-3×3-8L packages. It is rated over the -40 to +85 temperature range.

          PIN CONFIGURATIONS

          Snap8.png

          FEATURES
          • 90mΩ (TYP) High-side MOSFET per Channel

          • 1.1A Current Limit

          • Input Voltage Range: 2.7V to 5.5V

          • Low Quiescent Current: 28μA (Dual-Channel)

          • Soft-Start Function

          • Short-Circuit Protection with Thermal Shutdown

          • Thermally Isolated Channels

          • Fault Status Flag with 4ms Filter Eliminates False Assertions

          • Under-Voltage Lockout Protection for VIN

          • No Reversed Leakage Current

          • 1.8V Logic-Compatible Inputs

          • Evaluated to IEC 60950-1, Ed 2, Am1, Annex CC, Test Program 1 with CB Report (SGM2558A)

          • Available in Green SOIC-8 and TDFN-3×3-8L Packages

          APPLICATIONS

          USB Peripherals

          General Purpose Power Switching

          ACPI Power Distribution

          Notebook PCs

          PDAs

          PC Card Hot Swap

          ORDERING INFORMATION
          Part NumberStatusPackagePinsPb-FreeTemp Range
          SGM2558AYS8G/TRProductionSOIC-88Y40℃ to +85℃Samples
          SGM2558AYTDB8G/TRProductionTDFN-3×3-8L8Y40℃ to +85℃Samples
          SGM2558BYS8G/TRProductionSOIC-88Y-40℃ to +85℃Samples
          SGM2558BYTDB8G/TRProductionTDFN-3×3-8L8Y-40℃ to +85℃Samples

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