The SGM2581 is an integrated 100mΩ (TYP) power switch for self-powered and bus-powered Universal Series Bus (USB) applications.
The SGM2581 is internally current limited and has thermal shutdown that protects device and load from over-current damage. Thermal shutdown shuts off the output MOSFET and asserts the FAULT output if the die temperature exceeds 150℃ until the die temperature drops to 130℃.
This device employs soft-start circuit that minimizes inrush current in applications where highly capacitive loads are employed.
An open drain FAULT flag asserts low during over- current and thermal conditions after a 13ms blanking time to prevent false reporting.
SGM2581 is available in the Green SOT-23-5 package. It is rated over the -40℃ to +85℃ temperature range.
● 100mΩ (TYP) High-side N-Channel MOSFET
● Three Current Limit Levels
SGM2581A/B/G: 1100 ± 110mA
SGM2581C/D/I: 2100 ± 220mA
SGM2581E/F/K: 2600 ± 310mA
● Input Voltage Range: 2.5V to 5.5V
● Low 23μA Quiescent Current
● Typical 0.1μA Shutdown Current
● Soft-Start Function
● Thermal Shutdown Protection
● Under-Voltage Lockout Protection for VIN
● No Reversed Leakage Current (Reverse Blocking)
● Fault Flag (FAULT) with 13ms Filter Eliminates
● Automatic Output Discharge in Shutdown Mode
● 500kΩ Pull-Down Resistor at EN Pin
● Evaluated to IEC 60950-1, Ed 2, Am1, Annex CC,
Test Program 1 with CB Report (SGM2581A/C/E)
● Available in the Green SOT-23-5 Package
General Purpose Power Switching
USB Bus/Self Powered Hubs/ Peripherals
ACPI Power Distribution
Smart Phone & LCD TV
|Part Number||Status||Package||Pins||Pb-Free||Temp Range|
|SGM2581CYN5G/TR||Production||SOT-23-5||5||Y||-40℃ to +85℃||Samples|
|SGM2581DYN5G/TR||Production||SOT-23-5||5||Y||-40℃ to +85℃||Samples|
|SGM2581IYN5G/TR||Production||SOT-23-5||5||Y||-40℃ to +85℃||Samples|