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TPS2149IDGN Fiches technique(PDF) 4 Page - Texas Instruments |
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TPS2149IDGN Fiches technique(HTML) 4 Page - Texas Instruments |
4 / 19 page TPS2148 TPS2158 SLVS373 – AUGUST 2001 4 www.ti.com electrical characteristics over recommended operating junction-temperature range, 2.9 V ≤ VI(VIN/SWIN1) ≤ 5.5 V, TJ = –40°C to 100°C (unless otherwise noted) timing parameters, power switches PARAMETER TEST CONDITIONS MIN TYP MAX UNIT t 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 t ff Turnoff time OUTx switch (see Note 1) CL = 100 µF RL =33 Ω 5.5 10 ms toff Turnoff time, OUTx switch (see Note 1) CL = 1 µF RL = 33 Ω 0.05 2 ms t 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. undervoltage lockout at switch 2 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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