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TPS7A63-Q1 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS7A63-Q1 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 41 page  TPS7A6301-Q1, TPS7A6333-Q1, TPS7A6350-Q1, TPS7A6401-Q1 SLVSAB1E – JUNE 2011 – REVISED SEPTEMBER 2015 www.ti.com Electrical Characteristics (continued) VIN = 14 V, TJ = –40ºC to 150ºC (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IOH Leakage current Reset pulled to VOUT through a 5-k Ω resistor 1 µA VOUT powered up above internally set tolerance, 4.5 4.65 4.77 VOUT = 5 V VTH(POR) Power-on-reset threshold V VOUT powered up above internally set tolerance, 3.07 VOUT = 3.3 V VOUT falling below internally set tolerance, 4.5 4.65 4.77 VOUT = 5 V UVTHRES Reset threshold V VOUT falling below internally set tolerance, 3.07 VOUT = 3.3 V CDLY = 100 pF 300 µs tPOR (2) Power-on-reset delay CDLY = 100 nF 300 ms Internally preset tPOR-PRESET CDLY not connected, VOUT = 5 V and VOUT = 3.3 V 250 µs Power-on-reset delay tDEGLITCH Reset deglitch time 5.5 µs RESET DELAY (RDELAY PIN) Threshold to release nRST VTH(RDELAY) Voltage at RDELAY pin is ramped up 3 3.3 V high Delay capacitor IDLY 0.75 1 1.25 µA charging current Delay capacitor IOL Voltage at RDELAY pin = 1 V 5 mA discharging current CURRENT VOLTAGE REFERENCE (ROSC PIN) VROSC Voltage reference 0.95 1 1.05 V WATCHDOG FAULT / FLAG OUTPUT (WD_FLT / WD_FLAG Pin) VOL Logic output low level IOL= 5 mA 0.4 V WD_FLT/WD_FLG pulled to VOUT through 5-kΩ IOH Leakage current 1 µA resistor WATCHDOG ENABLE INPUT (nWD_EN PIN) VIL Logic input low level 0.8 V VIH Logic input high level 3 V < VDD < 5.25 V 2.5 V WATCHDOG INPUT PULSE (WD PIN) VIL Logic input low level 0.8 V VIH Logic input high level 3 V < VDD < 5.25 V 2.5 V ROSC = 10 kΩ ± 1% 10 tWD Watchdog window duration ms ROSC = 20kΩ ± 1% 20 Tolerance of watchdog Excludes tolerance of ROSC tWD-tol period using external –10% 10% (external resistor connected to ROSC pin) resistor External resistor not connected, ROSC pin is floating tWD-DEFAULT Default watchdog period 108 164 254 ms or open Minimum pulse width for tWD-HOLD 1.65 µs resetting watch dog timer OPERATING TEMPERATURE RANGE Operating junction TJ –40 150 ºC temperature Thermal shutdown trip TSHUTDOWN 165 ºC point Thermal shutdown THYST 10 ºC hysteresis 6 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS7A6301-Q1 TPS7A6333-Q1 TPS7A6350-Q1 TPS7A6401-Q1 |
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