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TPS2145IPWP Datasheet(PDF) 5 Page - Texas Instruments |
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TPS2145IPWP Datasheet(HTML) 5 Page - Texas Instruments |
5 / 19 page TPS2149 TPS2159 SLVS401 – AUGUST 2001 5 www.ti.com electrical characteristics over recommended operating junction-temperature range, 2.9 V ≤ VI(VIN) ≤ 5.5 V, VI(ENx) = 0 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 logic output, OC PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Current sinking at VO = 0.4 V 1 mA 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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