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TPS3828-33DBVRG4 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS3828-33DBVRG4 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 17 page TPS3820xx, TPS3823xx, TPS3824xx, TPS3825xx, TPS3828xx SLVS165G − APRIL 1998 − REVISED JANUARY 2008 www.ti.com 6 ELECTRICAL CHARACTERISTICS (continued) Over operating free-air temperature range, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IIH(AV) Average high-level input current WDI WDI = VDD, time average (dc = 88%) 120 IIL(AV) Average low-level input current WDI WDI = 0.3 V, VDD = 5.5 V time average (dc = 12%) −15 WDI WDI = VDD 140 190 µA IIH High-level input current MR MR = VDD × 0.7, VDD = 5.5 V −40 −60 µA IIL Low-level input current WDI WDI = 0.3 V, VDD = 5.5 V 140 190 IIL Low-level input current MR MR = 0.3 V, VDD = 5.5 V −110 −160 TPS382x-25 IOS Output short-circuit RESET TPS382x-30 VDD = VIT, max + 0.2 V, −400 A IOS Output short-circuit current(1) RESET TPS382x-33 VDD = VIT, max + 0.2 V, VO = 0 V −400 µA current TPS382x-50 VO = 0 V −800 IDD Supply current WDI and MR unconnected, Outputs unconnected 15 25 µA Internal pullup resistor at MR 52 k Ω Ci Input capacitance at MR, WDI VI = 0 V to 5.5 V 5 pF (1) The RESET short-circuit current is the maximum pullup current when RESET is driven low by a µP bidirectional reset pin. TIMING REQUIREMENTS AT RL = 1 MΩ, CL = 50 PF, TA = 25°C At RL = 1 MΩ, CL = 50 pF, TA = +25°C. PARAMETER TEST CONDITIONS MIN MAX UNIT at VDD VDD = VIT− + 0.2 V, VDD = VIT- − 0.2 V 6 µs tw Pulse width at MR VDD ≥ VIT− + 0.2 V, VIL = 0.3 x VDD, VIH = 0.7 x VDD 1 µs tw Pulse width at WDI VDD ≥ VIT− + 0.2 V, VIL = 0.3 x VDD, VIH = 0.7 x VDD 100 ns SWITCHING CHARACTERISTICS At RL = 1 MΩ, CL = 50 pF, TA = +25°C. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ttout Watchdog time out TPS3820 VDD ≥ VIT− + 0.2 V, 112 200 310 ms ttout Watchdog time out TPS3823/4/8 VDD ≥ VIT− + 0.2 V, See timing diagram 0.9 1.6 2.5 s td Delay time TPS3820 VDD ≥ VIT− +0.2 V, 15 25 37 ms td Delay time TPS3823/4/5/8 VDD ≥ VIT− +0.2 V, See timing diagram 120 200 300 ms tPHL Propagation (delay) time, high-to-low-level output MR to RESET delay (TPS3820/3/5/8) VDD ≥ VIT− +0.2 V, VIL = 0.3 x VDD, VIH = 0.7 x VDD 0.1 µs tPHL high-to-low-level output VDD to RESET delay VIL = VIT- - 0.2 V, VIH = VIT- + 0.2 V 25 µs tPLH Propagation (delay) time, low-to-high-level output MR to RESET delay (TPS3824/5) VDD ≥ VIT− +0.2 V, VIL = 0.3 x VDD, VIH = 0.7 x VDD 0.1 µs tPLH low-to-high-level output VDD to RESET delay (TPS3824/5) VIL = VIT- - 0.2 V, VIH = VIT- + 0.2 V 25 µs |
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