MAX16997AAUA+ Maxim Integrated Products, MAX16997AAUA+ Datasheet
MAX16997AAUA+
Specifications of MAX16997AAUA+
Related parts for MAX16997AAUA+
MAX16997AAUA+ Summary of contents
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... Maximum Open-Drain Enable Output Voltage o Power-On/Power-Off Reset Functionality (MAX16998A/B/D Only) o AEC-Q100 Qualified , RESET o -40°C to +125°C Operating Temperature Range o Small (3mm x 3mm) µMAX Package o WDI Narrow Pulse Immunity PART MAX16997AAUA+ MAX16997AAUA/V+ MAX16998AAUA+ MAX16998AAUA/V+ MAX16998BAUA+ MAX16998BAUA/V+ MAX16998DAUA+ Applications MAX16998DAUA/V+ +Denotes a lead(Pb)-free/RoHS-compliant package. ...
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High-Voltage Watchdog Timers with Adjustable Timeout Delay ABSOLUTE MAXIMUM RATINGS (All pins referenced to GND, unless otherwise noted.) IN, ENABLE ............................................................-0.3V to +45V WDI, RESET, EN .....................................................-0.3V to +20V RESETIN .................................................................-0.3V to +20V SRT, SWT................................................................-0.3V to +12V Maximum Current (all ...
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High-Voltage Watchdog Timers with ELECTRICAL CHARACTERISTICS (continued 14V -40°C to +125°C, unless otherwise noted. Typical values are PARAMETER SYMBOL WATCHDOG TIMER WDI Input Threshold WDI Input Hysteresis WDI WDI ...
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High-Voltage Watchdog Timers with Adjustable Timeout Delay ( 1500pF +25°C, unless otherwise noted.) SWT SRT A SUPPLY CURRENT vs. TEMPERATURE 20.0 RESET AND ENABLE NOT 19.5 ASSERTED 19.0 18.5 18.0 17.5 17.0 16.5 16.0 15.5 ...
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High-Voltage Watchdog Timers with PIN NAME MAX16997A MAX16998A/B — — N. SWT 5 5 GND 6 6 WDI ENABLE 8 8 — 2 RESETIN — 3 SRT RESET — 7 _______________________________________________________________________________________ Adjustable ...
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High-Voltage Watchdog Timers with Adjustable Timeout Delay IN PREG RESETIN (MAX16998) EN (MAX16997) WDI BUFFER I RAMP SRT (MAX16998) I RAMP SWT GND 6 _______________________________________________________________________________________ MAX16997/MAX16998 Functional Diagram RESET ENABLE MAX16997A/ MAX16998A/B/D LOGIC ...
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High-Voltage Watchdog Timers with PON INITIAL WDI ENABLE t = WATCHDOG TIMEOUT PERIOD INITIAL 3 CONSECUTIVE t WITHOUT TRIGGER ENABLE GOES LOW WP Figure 1. MAX16997A Timing Diagram ...
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High-Voltage Watchdog Timers with Adjustable Timeout Delay V RESETIN V PON RESET OW WDI WDI t WP RESET ENABLE t = RESET TIMEOUT PERIOD RESET 3 CONSECUTIVE RESETS ENABLE GOES ACTIVE LOW Figure 3. MAX16998B/D Timing Diagram ...
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High-Voltage Watchdog Timers with Detailed Description The MAX16997/MAX16998 are µP supervisory circuits for high-input-voltage and low-quiescent-current appli- cations. These devices improve system reliability by monitoring the sub-system for software code execution errors. The MAX16997A/MAX16998A/B/D detect down- stream circuit failures, and ...
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High-Voltage Watchdog Timers with Adjustable Timeout Delay 1. RESETIN V PON t RESET RESET ENABLE ≤ t ≤ WDI WDI t WDI WDI WDI WDI t t ...
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High-Voltage Watchdog Timers with RESETIN Input (MAX16998A/B/D) The MAX16998A/B/D monitor the voltage at RESETIN using an adjustable reset threshold, set with an external resistive divider (see Figure 7). RESET asserts when V is below 1.235V. RESETIN Use the following equations ...
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High-Voltage Watchdog Timers with Adjustable Timeout Delay WDI falling edge occurs within the watchdog timeout period (t ) and is considered a late fault that asserts WP RESET. In case 3, the WDI falling edge occurs within the open window ...
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High-Voltage Watchdog Timers with Interfacing to Other Voltages for Logic Compatibility As shown in Figure 9, the open-drain RESET output can operate in the 2.5V to 18V range. This allows the device to interface a µP with other logic levels. ...
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High-Voltage Watchdog Timers with Adjustable Timeout Delay V BATT SRT RESETIN R2 SWT Figure 11. MAX16998A/B/D Switch Over to Backup Circuitry V BATT V CC MAX16997A SWT Figure 12. MAX16997A Application Diagram 14 ______________________________________________________________________________________ ...
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High-Voltage Watchdog Timers with TOP VIEW + MAX16997A N.C. 3 SWT 4 µMAX Chip Information PROCESS: BiCMOS ______________________________________________________________________________________ Adjustable Timeout Delay IN 8 ENABLE RESETIN 7 N.C. SRT 6 WDI SWT 5 GND For the latest ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products ...