ADM692A Analog Devices, ADM692A Datasheet
ADM692A
Specifications of ADM692A
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ADM692A Summary of contents
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... A 1.25 V threshold detector for power fail warning, low battery detection monitor a power supply other than + the ADM690A/ADM802L/ADM805L the reset voltage threshold is 4. the ADM692A/ADM802M/ ADM805M, the reset voltage threshold is 4.40 V. The ADM802L/ADM802M guarantee power fail accuracies to 2%. ...
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... Logic High WDI Input Current POWER FAIL DETECTOR PFI Input Threshold PFI Input Current PFO Output Voltage NOTES 1 Either can the other > +2 BATT Specifications subject to change without notice 5.5 V, (ADM692A/ADM802M/ADM805M Min Typ Max 1.0 5.5 70 100 0.05 1.0 –0.1 +0.02 V – 0.02 V – ...
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... CC 2. The watchdog timer is not serviced within its timeout period (1.6 seconds) The reset threshold is typically 4.65 V for the ADM690A/ADM802L/ADM805L and 4.4 V for the ADM692A/ ADM802M/ADM805M. RESET remains low for 200 ms after V goes low for 200 ms if the watchdog timer is enabled but not serviced within its timeout period. ...
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... ADM690A/ADM692A/ADM802L/M/ADM805L/M Typical Performance Curves 3 2.75 2.5 2. – mA OUT Figure 1. Output Voltage vs. Load Current in Battery Backup 100 90 PFO 10 1.3V 0% PFI 1.2V 200mV Figure 2. Power Fail Comparator Response Time + 100 RESET Figure 3. ADM690A RESET Response Time 5.00 4.98 4. 9.3 4.88 OUT 4 ...
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... V. This ensures that CC the microprocessor is held in a stable shutdown condition. The guaranteed minimum and maximum thresholds are as follows: ADM690A/ADM802L/ADM805L: 4.5 V and 4.75 V ADM692A: 4.25 V and 4.5 V. ADM802L: 4.55 V and 4.7 V ADM802M: 4.3 V and 4.45 V The ADM805L and ADM805M contain an active high reset output. This is the complement of RESET and is intended for processors requiring an active high RESET signal ...
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... ADM690A/ADM692A/ADM802L/M/ADM805L/M Table I. Input and Output Status in Battery Backup Mode Signal Status connected to V OUT OUT BATT PMOS switch. RESET Logic low. RESET Logic high (ADM805L, ADM805M). The open circuit output voltage is equal to V PFI The power fail comparator is disabled PFO Logic low ...
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... Figure 13. TO STATIC RAM TO µP –7– should be con- BATT should be connected to V OUT CC is present. Since V is above the floating BATT BUFFERED RESET + ADM690A ADM692A ADM802L µP ADM802M RESET RESET GND GND Figure 13. Bidirectional Reset . ...
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... ADM690A/ADM692A/ADM802L/M/ADM805L/M OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 8-Pin Plastic DIP (N-8) 0.430 (10.92) 0.348 (8.84 0.280 (7.11) 0.240 (6.10 0.325 (8.25) 0.300 (7.62) 0.060 (1.52) PIN 1 0.015 (0.38) 0.210 (5.33) MAX 0.130 0.160 (4.06) (3.30) MIN 0.115 (2.93) SEATING 0.100 0.022 (0.558) 0.070 (1.77) PLANE (2.54) 0.014 (0.356) 0.045 (1.15) BSC 8-Lead SOIC (SO-8) 0.1968 (5.00) ...