Texas Instruments TPS2001D
The TPS2001D power-distribution switch is intended for applications where heavy capacitive loads and short circuits are likely to be encountered, such as USB. The TPS2001D limits the output current to a safe level by operating in a constant-current mode when the output load exceeds the current limit threshold. This provides a predictable fault current under all conditions.FEATURES
●1 Single Power Switch Family● Rated Current of 2 A
● ±20% Accurate, Fixed, Constant Current Limit
● Fast Overcurrent Response: 2 µs
● Deglitched Fault Reporting
● Output Discharge
● Reverse Current Blocking
● Built-In Soft Start
● Ambient Temperature Range: –40°C to 85°C
● UL Listed and CB-File No. E169910 2
APPLICATIONS
● USB Ports and Hubs, Laptops, and Desktops● High-Definition Digital TVs
● Set-Top Boxes
● Short-Circuit Protection 3
DESCRIPTION
The fast overload response time eases the burden on the main 5-V supply to provide regulated power when the output is shorted. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS2001D VSSOP (8) SOT-23 (5) 3.00 mm × 3.00 mm 2.90 mm × 1.60 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. spacer spacer Typical Application Diagram 0.1 mF VIN RFLT 10 kW IN OUT VOUT 150 mF Fault...