MAX6747 MAXIM [Maxim Integrated Products], MAX6747 Datasheet
MAX6747
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MAX6747 Summary of contents
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... MAX6751 SRT 3 GND 4 SOT23 ARE FOR MAX6746 AND MAX6747 ONLY. Pin Configurations continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Reset/Watchdog Timeout Delay o Factory-Set Reset Threshold Options from 1.575V ...
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Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +6.0V CC SRT, SWT, SET0, SET1, RESET IN, WDS, MR, WDI, to GND .......................................…-0. RESET (Push-Pull) to GND......................…-0. RESET (Open ...
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Reset Circuits with Capacitor-Adjustable ELECTRICAL CHARACTERISTICS (continued +1.2V to +5.5V MIN MAX PARAMETER SYMBOL Fast Watchdog Timeout Period, SET Ratio = 64, (MAX6752/MAX6753) Fast Watchdog Minimum Period (MAX6752/MAX6753) SWT Ramp ...
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Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay (V = +5V +25°C, unless otherwise noted RESET TIMEOUT PERIOD vs. C SRT 10,000 1000 100 10 1 0.1 100 1000 10,000 100,000 C (pF) SRT NORMALIZED RESET ...
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... TEMPERATURE (V FALLING) CC 27.0 V FALLING AT 1mV/µs CC 26.6 26.2 25.8 25.4 25.0 -50 - 100 TEMPERATURE (°C) PIN MAX6746 MAX6748– MAX6752 MAX6747 MAX6751 MAX6753 1 — — — 1 — — — _______________________________________________________________________________________ Reset/Watchdog Timeout Delay Typical Operating Characteristics (continued) RESET AND WATCHDOG TIMEOUT PERIOD vs ...
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... Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay PIN MAX6746 MAX6748– MAX6752 MAX6747 MAX6751 MAX6753 5 5 — — — _______________________________________________________________________________________ Pin Description (continued) NAME Watchdog Select Input. WDS selects the watchdog mode. Connect WDS to ground to select normal mode and the watchdog timeout WDS period ...
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Reset Circuits with Capacitor-Adjustable GUARANTEED TO ASSERT RESET WDI CONDITION 1 WDI CONDITION 2 WDI CONDITION 3 *UNDETERMINED STATES MAY OR MAY NOT GENERATE A FAULT CONDITION Figure 1. MAX6752/MAX6753 Detailed Watchdog Input Timing Relationship Detailed Description The MAX6746–MAX6753 ...
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... R2 When the switch is closed, the voltage on RESET IN goes to zero, initiating a reset. Similar to the MAX6746 (Ω) MAX6747 manual reset, reset remains asserted while the voltage at RESET IN is zero and for the reset time- sup- CC out period after the switch is opened. ...
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Reset Circuits with Capacitor-Adjustable V CC WDI RESET OV EXTENDED MODE (WDS = Figure 4b. Watchdog Timing Diagram, WDS = V The watchdog’s circuit monitors the µP’s activity. It the µP does not ...
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... Adjust the watchdog timeout period ( connecting a specif value capacitor (C ) between SWT and GND. For SWT 10 ______________________________________________________________________________________ MAX6747 MAX6749 MAX6451 MAX6753 Figure 6. Interfacing to Other Voltage Levels normal mode operation, calculate the watchdog time- out capacitor as follows: with t in seconds and C ...
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Reset Circuits with Capacitor-Adjustable Interfacing to Other Voltages for Logic Compatibility The open-drain RESET output can be used to interface to a µP with other logic levels. As shown in open-drain output can be connected to voltages from 0 ...
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... Table 3. Standard Version Table PART MAX6746KA16 MAX MAX6746KA23 5.100 MAX6746KA26 4.998 MAX6746KA29 4.896 MAX6746KA46 4.794 MAX6747KA16 4.718 MAX6747KA23 4.590 MAX6747KA26 4.463 MAX6747KA29 4.386 MAX6747KA46 4.284 MAX6748KA 4.182 MAX6749KA 4.080 MAX6750KA16 3.978 MAX6750KA23 3.876 MAX6750KA26 3.774 MAX6750KA29 3.672 MAX6750KA46 3.570 MAX6751KA16 3.468 MAX6751KA23 3.366 MAX6751KA26 3 ...
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... Reset Circuits with Capacitor-Adjustable FIXED V ADJUSTABLE CC PART RESET RESET THRESHOLD THRESHOLD MAX6746 * — MAX6747 * — MAX6748 — * MAX6749 — * MAX6750 * * MAX6751 * * MAX6752 * — MAX6753 * — Typical Operating Circuit RESET MAX6748 R2 MAX6749 MAX6750 RESET GND MAX6751 SRT C WDI ...
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Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages PIN 1 I.D. DOT ...