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TPS2155IPWP Fiches technique(PDF) 6 Page - Texas Instruments |
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TPS2155IPWP Fiches technique(HTML) 6 Page - Texas Instruments |
6 / 19 page TPS2148 TPS2158 SLVS373 – AUGUST 2001 6 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, VI(LDO_EN) = 5 V, TJ = –40°C to 100 °C (unless otherwise noted) enable input, ENx (active low) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V II Input current, pullup (source) VI(ENx) = 0 V 5 µA enable input, ENx (active high) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V II Input current, pulldown (sink) VI(ENx) = 5 V 5 µA enable input, LDO_EN (active high) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V II Input current, pulldown VI(LDO_EN) = 5 V 5 µA Falling-edge deglitch (see Note 1) 50 µs NOTE 1. Specified by design, not tested in production. thermal shutdown characteristics PARAMETER TEST CONDITIONS MIN TYP MAX UNIT First thermal shutdown (shuts down switch or regulator in overcurrent) Occurs at or above specified temperature when overcurrent is present. 120 Recovery from thermal shutdown 110 °C Second thermal shutdown (shuts down all switches and regulator) Occurs on rising temperature, irrespective of overcurrent. 155 °C Second thermal shutdown hysteresis 10 |
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