GENERAL DEscriptION
The SGM2593D is a single channel power distribution switch. The switch controlled by the EN pin operates from 2.5V to 6V supply voltage. It can be used in USB power distribution applications.
The SGM2593D integrates programmable current limit to protect the upstream power supply from damage during over-current or short-circuit condition.
The device has the function of over-temperature protection. When the junction temperature exceeds +151℃, the device will be turned off and the internal MOSFET will remain off until the temperature drops to +105℃. In current limit mode, the over-temperature protection will shut down the output if the maintaining time of over-current state is long enough to cause the junction temperature exceeds +128℃. The internal switch will not be turned on until the temperature drops below +105℃.
The device is designed with soft-start circuit to cope with inrush currents when large capacitive loads are connected. The nFAULT output will be asserted to low level during over-current, over-temperature or reverse voltage condition.
The SGM2593D further reduces the total solution size by integrating a 47Ω pull-down resistor for output discharge when the switch is shut down by EN.
The SGM2593D is available in a Green TDFN-2×2-6AL package.
PIN CONFIGURATIONS
FEATURES
High-side N-MOSFET
On-Resistance: 60mΩ (TYP)
Programmable Current Limit Range: 0.1A to 3A
1.5A at RILIM = 4.53kΩ
Input Voltage Range: 2.5V to 6V
Quiescent Current: 27μA (TYP)
Shutdown Current: 0.28μA (TYP)
Soft-Start Function
Over-Temperature Protection
Under-Voltage Lockout Protection for VIN
No Reversed Leakage Current (Reverse Blocking)
Fault Flag (nFAULT Pin)
Quick Output Discharge
1.2MΩ Pull-Down Resistor at EN Pin
Available in a Green TDFN-2×2-6AL Package
APPLICATIONS
General Purpose Power Switching
USB Bus/Self-Powered Hub
USB Peripheral
ACPI Power Distribution
Smart Phone
LCD TV