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TPS2145IPWP Datasheet(PDF) 4 Page - Texas Instruments |
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TPS2145IPWP Datasheet(HTML) 4 Page - Texas Instruments |
4 / 29 page TPS2145, TPS2147 TPS2155, TPS2157 SLVS333 − AUGUST 2001 4 www.ti.com electrical characteristics over recommended operating junction-temperature range, 2.9 V ≤ VI(VIN/SWIN1) ≤ 5.5 V, 2.9 V ≤ VI(SWIN2) ≤ 5.5 V, VI(ENx) = 0 V or VI(ENx) = 5 V, VI(LDO_EN) = 5 V, TJ = −40°C to 100°C (unless otherwise noted) power switches PARAMETER TEST CONDITIONS MIN TYP MAX UNIT rDS(on) Static drain-source on-state resistance, TJ = −40°C to 100°C, IO(LDO_OUT) = 200 mA, IOUT1 and IOUT2 = 150 mA 580 m Ω rDS(on) Static drain-source on-state resistance, VIN/SWIN1 or SWIN2 to OUTx TJ = 25°C, IO(LDO_OUT) = 200 mA, IOUT1 and IOUT2 = 150 mA 340 m Ω VI(ENx) = 5 V, VI(ENx) = 0 V, SWIN2 floating, VI(VIN/SWIN1) = 5 V 10 Ilkg(R) Reverse leakage current at OUTx VO(OUTx) = 5 V, LDO_EN = don’t care VI(ENx) = 5 V, VI(ENx) = 0 V, VI(SWIN2) = 0, VI(VIN/SWIN1) = 2.9 V 10 µA VI(ENx) = 5 V, VI(ENx) = 0 V, VI(SWIN2) = 0, VI(VIN/SWIN1) = 0 V 10 IOS Short circuit output current OUTx connected to GND, device enabled into short circuit 0.2 0.4 A Delay time for asserting OC flag From IOUTx at 95% of current limit level to 50% OC 5.5 ms Delay time for deasserting OC flag From IOUTx at 95% of current limit level to 50% OC 10.5 ms timing parameters, power switches PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ton Turnon time, OUTx switch, (see Note 1) CL = 100 µF RL = 33 Ω 0.5 6 ton Turnon time, OUTx switch, (see Note 1) CL = 1 µF RL = 33 Ω 0.1 3 toff Turnoff time, OUTx switch (see Note 1) CL = 100 µF RL = 33 Ω 5.5 12 ms toff Turnoff time, OUTx switch (see Note 1) CL = 1 µF RL = 33 Ω 0.05 4 ms tr Rise time, OUTx switch (see Note 1) CL = 100 µF RL = 33 Ω 0.5 5 tr Rise time, OUTx switch (see Note 1) CL = 1 µF RL = 33 Ω 0.1 2 tf Fall time, OUTx switch (see Note 1) CL = 100 µF RL = 33 Ω 5.5 9 tf Fall time, OUTx switch (see Note 1) CL = 1 µF RL = 33 Ω 0.05 1.2 NOTE 1. Specified by design, not tested in production. undervoltage lockout at VIN/SWIN1 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT UVLO Threshold 2.2 2.85 V Hysteresis (see Note 1) 260 mV Deglitch (see Note 1) 50 µs NOTE 1. Specified by design, not tested in production. |
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