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TPS3128 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS3128 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 12 page www.ti.com TIMING REQUIREMENTS SWITCHING CHARACTERISTICS TPS3123-xx TPS3124-xx, TPS3125-xx TPS3126-xx, TPS3128-xx SLVS227B – AUGUST 1999 – REVISED FEBRUARY 2004 ELECTRICAL CHARACTERISTICS (continued) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TPS3123-xx VDD = 0.75 V 14 WDI = VDD, TPS3124-xx MR unconnected VDD = 3.3 V 22 30 TPS3128-xx IDD Supply current µA VDD = 0.75 V 14 TPS3125-xx MR unconnected TPS3126-xx (2) VDD = 3.3 V 18 25 Ci Input capacitance at MR, WDI VI = 0 V to 3.3 V 5 pF (2) The supply current during delay time td is typical 5 µA higher. at R L = 1 MΩ, CL = 50 pF, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT At VDD VIH = VIT- + 0.2 V, VIL = VIT - -0.2 V 6 tw Pulse width At MR 1 µs VDD ≥ VIT- + 0.2 V, VIL = 0.3 x VDD, VIH = 0.7 × VDD At WDI 0.1 at R L = 1 MΩ, CL = 50 pF, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VDD ≥ VIT- + 0.2 V, ttout Watchdog time out 0.8 1.4 2.1 s See timing diagram VDD > VIT- + 0.2 V, td Delay time 100 180 260 ms See timing diagram MR to RESET delay tPHL Propagation delay time, high-to-low-level output 0.1 VDD ≥ VIT-+ 0.2 V, (TPS3123/5/6/8) VIL = 0.2 × VDD, µs MR to RESET delay VIH = 0.8 × VDD tPLH Propagation delay time, low-to-high-level output 0.1 (TPS3125/6) tPHL Propagation delay time, high-to-low-level output VDD to RESET delay 10 VIL = VIT- - 0.2 V, µs VDD to RESET delay VIH = VIT- + 0.2 V tPLH Propagation delay time, low-to-high-level output 10 (TPS3124/5/6) 7 |
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Similar Description - TPS3128 |
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