SGM2581G数据手册SGMICRO中文资料规格书

描述 Description

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 nFAULT output if the die temperature exceeds +150℃, and the output MOSFET remains off 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 nFAULT flag asserts low during over- current and thermal conditions after a 13ms blanking time to prevent false reporting.

SGM2581 is available in a Green SOT-23-5 package. It is rated over the -40℃ to +85℃ temperature range.

特性 Features

• 100mΩ (TYP) High-side N-Channel MOSFET
• Three Current Limit Levels  SGM2581A/B/G: 1100 ± 110mA
• Input Voltage Range: 2.5V to 5.5V
• Quiescent Current: 23μA (TYP)
• Shutdown Current: 0.1μA (TYP)
• Soft-Start Function
• Thermal Shutdown Protection
• Under-Voltage Lockout Protection for VIN
• No Reversed Leakage Current (Reverse Blocking)
• Fault Flag (nFAULT) with 13ms Filter Eliminates False Assertions
• Automatic Output Discharge in Shutdown Mode (SGM2581A/B/C/D/E/F)
• 500kΩ Pull-Down Resistor at EN Pin (SGM2581G/I/K)
• Evaluated to IEC 60950-1, Ed 2, Am1, Annex CC, Test Program 1 with CB Report (SGM2581A/C/E)
• Available in a Green SOT-23-5 Package

应用 Application

• General Purpose Power Switching
• USB Bus/Self-Powered Hubs/ Peripherals
• ACPI Power Distribution
• Smart Phone & LCD TV