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TPS2045 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS2045 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 23 page TPS2045, TPS2055 CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES SLVS182 – APRIL 1999 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating junction temperature range, VI(IN)= 5.5 V, IO = rated current, VI(EN)= 0 V, VI(EN) = Hi (unless otherwise noted) power switch PARAMETER TEST CONDITIONS† TPS2045 TPS2055 UNIT PARAMETER TEST CONDITIONS† MIN TYP MAX MIN TYP MAX UNIT VI(IN) = 5 V, IO = 0.25 A TJ = 25°C, 80 95 80 95 Static drain-source on-state resistance, 5-V operation VI(IN) = 5 V, IO = 0.25 A TJ = 85°C, 90 120 90 120 rDS( ) VI(IN) = 5 V, IO = 0.25 A TJ = 125°C, 100 135 100 135 m Ω rDS(on) VI(IN) = 3.3 V, IO = 0.25 A TJ = 25°C, 85 105 85 105 Static drain-source on-state resistance, 3.3-V operation VI(IN) = 3.3 V, IO = 0.25 A TJ = 85°C, 100 135 100 135 VI(IN) = 3.3 V, IO = 0.25 A TJ = 125°C, 115 150 115 150 t Rise time output VI(IN) = 5.5 V, CL = 1 µF, TJ = 25°C, RL = 20 Ω 2.5 2.5 ms tr Rise time, output VI(IN) = 2.7 V, CL = 1 µF, TJ = 25°C, RL = 20 Ω 3 3 ms tf Fall time output VI(IN) = 5.5 V, CL = 1 µF, TJ = 25°C, RL = 20 Ω 4.4 4.4 ms tf Fall time, output VI(IN) = 2.7 V, CL = 1 µF, TJ = 25°C, RL = 20 Ω 2.5 2.5 ms † Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account separately. enable input EN or EN PARAMETER TEST CONDITIONS TPS2045 TPS2055 UNIT PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT VIH High-level input voltage 2.7 V ≤ VI(IN) ≤ 5.5 V 2 2 V VIL Low level input voltage 4.5 V ≤ VI(IN) ≤ 5.5 V 0.8 0.8 V VIL Low-level input voltage 2.7 V ≤ VI(IN) ≤ 4.5 V 0.4 0.4 II Input current TPS2045 VI(EN) = 0 V or VI(EN) = VI(IN) –0.5 0.5 µA II Input current TPS2055 VI(EN) = VI(IN) or VI(EN) = 0 V –0.5 0.5 µA ton Turnon time CL = 100 µF, RL = 20 Ω 20 20 ms toff Turnoff time CL = 100 µF, RL = 20 Ω 40 40 current limit PARAMETER TEST CONDITIONS† TPS2045 TPS2055 UNIT PARAMETER TEST CONDITIONS† MIN TYP MAX MIN TYP MAX UNIT IOS Short-circuit output current VI(IN) = 5 V, OUT connected to GND, Device enabled into short circuit 0.345 0.44 0.525 0.345 0.44 0.525 A † Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account separately. |
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