Texas Instruments TPS2051BDBVR
- Part Number:
- TPS2051BDBVR
- Manufacturer:
- Texas Instruments
- Ventron No:
- 3262278-TPS2051BDBVR
- Description:
- 0.5A loading, 2.7-5.5V, 70mΩ USB power switch, active-high
- Datasheet:
- tps2051b
- Vin (min) (V)2.7
- Vin (max) (V)5.5
- Continuous current (max) (A)0.5
- Current limit (A)1
- Operating temperature range (°C)-40 to 125
- EnableActive High
- Number of switches1
- Current limit accuracy at 1 A0.25
- RatingCatalog
The TPS20xxB power-distribution switches are intended forapplications where heavy capacitive loads and short circuits are likely to be encountered. Thesedevices incorporates 70-mΩ N-channel MOSFET power switches for power-distribution systems thatrequire multiple power switches in a single package. Each switch is controlled by a logic enableinput. Gate drive is provided by an internal charge pump designed to control the power-switch risetimes and fall times to minimize current surges during switching. The charge pump requires noexternal components and allows operation from supplies as low as 2.7 V.
When the output load exceeds the current-limit threshold or a short is present, thedevice limits the output current to a safe level by switching into a constant-current mode, pullingthe overcurrent (OCx) logic output low. When continuous heavy overloads andshort circuits increase the power dissipation in the switch, causing the junction temperature torise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermalshutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that theswitch remains off until valid input voltage is present. This power-distribution switch is designedto set current limit at 1 A (typical).
USB Power SW Hi Side/DIST Single 2.7V to 5.5V 0.75A to 1.25A 5-Pin SOT-23 T/R
Tape & Reel (TR) TPS2051 Current Limiting (Fixed) Over Temperature UVLO e4 power distribution switch 2.9mm 5.5V 500mA 285mW
Switch, Current Ltd, 1A, 5Sot23; Power Load Switch Type:High Side; Input Voltage:5.5V; Current Limit:1A; On State Resistance:0.095Ohm; Distribution Switch Case Style:Sot-23; No. Of Pins:5Pins; Thermal Protection:Yes; On/Enable Rohs Compliant: Yes |TEXAS INSTRUMENTS TPS2051BDBVR
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