tps3824-33dbvrg4

More documents

Recommendations

Info

SLVS165G − APRIL 1998 − REVISED JANUARY 2008 6 www.ti.com 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 IIL(AV) IIH IIL IIL IOS IOS IDD Average low-level input current High-level input current Low-level input current current Output short-circuit current(1) current Supply current WDI WDI = VDD, time average (dc = 88%) WDI = 0.3 V, VDD = 5.5 V time average (dc = 12%) −15 WDI WDI = VDD 140 190 µA MR MR = VDD × 0.7, VDD = 5.5 V −40 −60 WDI WDI = 0.3 V, VDD = 5.5 V 140 190 MR MR = 0.3 V, VDD = 5.5 V −110 −160 TPS382x-25 RESET TPS382x-30 VDD VDD = VIT, VIT, max + 0.2 V, −400 RESET max + 0.2 V, −400 TPS382x-33 VO VO = 0 V TPS382x-50 WDI and MR unconnected, Outputs unconnected 120 −800 µAA 15 25 µA Internal pullup resistor at MR 52 kΩ 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 tw Pulse width at MR VDD ≥ VIT− + 0.2 V, VIL = 0.3 x VDD, VIH = 0.7 x VDD 1 µs 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 ttout Watchdog time out TPS3820 TPS3823/4/8 VDD VDD ≥ VIT− VIT− + 0.2 V, See timing diagram 112 0.9 200 1.6 310 2.5 ms s td td tPHL tPHL tPLH tPLH Delay time Propagation (delay) time, high-to-low-level output Propagation (delay) time, low-to-high-level output TPS3820 VDD VDD ≥ VIT− VIT− +0.2 V, 15 25 37 TPS3823/4/5/8 See timing diagram 120 200 300 MR to RESET delay (TPS3820/3/5/8) VDD to RESET delay MR to RESET delay (TPS3824/5) VDD ≥ VIT− +0.2 V, VIL = 0.3 x VDD, VIH = 0.7 x VDD VIL = VIT- - 0.2 V, VIH = VIT- + 0.2 V VDD ≥ VIT− +0.2 V, VIL = 0.3 x VDD, VIH = 0.7 x VDD VDD to RESET delay (TPS3824/5) VIL = VIT- - 0.2 V, VIH = VIT- + 0.2 V 0.1 25 0.1 25 ms µs µs
Normalized Input Threshold Voltage − V IT (T A ), V IT (25°C) A µ − Input Current − I I www.ti.com 1.001 1 0.999 0.998 0.997 0.996 0.995 −40 50 0 −50 −100 −150 NORMALIZED INPUT THRESHOLD VOLTAGE vs FREE-AIR TEMPERATURE AT V DD −15 10 35 60 85 TA − Free-Air Temperature − °C VDD = 5.5 V WDI = Open −40°C Figure 2 INPUT CURRENT vs INPUT VOLTAGE AT MR 85°C −200 −1 0 1 2 3 4 5 6 VI − Input Voltage at MR − V Figure 4 TYPICAL CHARACTERISTICS A IDD− Supply Current − µ VOL− Low-Level Output Voltage − V 19 17 15 13 11 9 7 5 3 1 −1 −0.5 3 2.5 2 1.5 1 0.5 0 0 MR = Open WDI = Open TA = 25°C SLVS165G − APRIL 1998 − REVISED JANUARY 2008 SUPPLY CURRENT vs SUPPLY VOLTAGE 0.5 1.5 2.5 3.5 4.5 5.5 6.5 VDD − Supply Voltage − V Figure 3 Figure 5 TPS382x-33 LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT VDD = 2.66 V WDI = Open MR = Open 85°C −40°C 1 2 3 4 5 6 7 8 9 10 IOL − Low-Level Output Current − mA 7
Page 1 and 2: www.ti.com FEATURES Power-On Reset
Page 3 and 4: www.ti.com FUNCTION/TRUTH TABLE INP
Page 5: www.ti.com SLVS165G − APRIL
Page 9 and 10: Revision History DATE REV PAGE SECT
Page 11 and 12: Orderable Device Status (1) Package
Page 13 and 14: TAPE AND REEL BOX INFORMATION Devic
Page 15: Device Package Pins Site Length (mm

tps3824-33dbvrg4

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?