ADM9690 Analog Devices, ADM9690 Datasheet
ADM9690
Specifications of ADM9690
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ADM9690 Summary of contents
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... The watchdog timer is restarted when RESET(1) goes inactive. The actual watchdog timeout period is adjustable using two select inputs SEL1 and SEL2. The ADM9690 is available in an 8-lead SOIC package specified over the industrial temperature range. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. ...
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... ADM9690–SPECIFICATIONS Parameter V OPERATING VOLTAGE RANGE CC SUPPLY CURRENT RESET AND WATCHDOG TIMER Reset Voltage Threshold Reset Threshold Hysteresis Reset Timeout Delay ( RESET(2) Timeout Delay ( WATCHDOG TIMEOUT PERIOD (TWD) WDI INPUT PULSEWIDTH RESET(1)/(2) Output Voltage WDI INPUT THRESHOLD Logic Low ...
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... Logic Output. RESET(1) goes low if V falls below the Reset Threshold or the Watch- dog timer is not serviced within its timeout period. The reset threshold is typically 4.4 V for the ADM9690. RESET(1) remains low for 50 ms after V returns above the thresh- CC old. RESET(1) also goes low for the Watchdog Timer is not serviced within its timeout period ...
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... Figure 3. Watchdog and Reset Timeout Period vs. Supply @ –40 ° 120 V CC 4.31V RESET(2) RESET(2) TIMER WATCHDOG TIMEBASE RESET(1) RESET(1) TIMER WATCHDOG WATCHDOG ADM9690 INPUT (WDI) TRANSITION DETECTOR GND Figure 5. Typical Application Circuit –4– 100 RESET2/TIMEOUT RESET1/TIMEOUT WATCHDOG TIMEOUT PERIOD 10 2.5 3.0 3.5 4.0 4.5 5 ...
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... POWER SUPPLY AND WATCHDOG MONITORING CIRCUIT The ADM9690 contains a power supply voltage monitoring comparator and a watchdog timer monitor. Either V ping outside tolerance or the watchdog timer timing out results in a reset sequence as discussed below. Two reset outputs are provided. RESET(1) and RESET(2). ...
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... ADM9690 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 8-Lead Narrow Body SOIC (SO-8) 0.1968 (5.00) 0.1890 (4.80 0.1574 (4.00) 0.2440 (6.20 0.1497 (3.80) 0.2284 (5.80) PIN 1 0.0688 (1.75) 0.0196 (0.50) 0.0098 (0.25) 0.0532 (1.35) 0.0099 (0.25) 0.0040 (0.10) 8° 0.0500 0.0192 (0.49) 0° SEATING 0.0098 (0.25) 0.0500 (1.27) (1.27) 0.0138 (0.35) PLANE BSC 0.0075 (0.19) 0.0160 (0.41) –6– x 45° ...