ADM805 Analog Devices, ADM805 Datasheet
ADM805
Specifications of ADM805
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ADM805 Summary of contents
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... CC WATCHDOG INPUT (WDI) POWER FAIL INPUT (PFI) The ADM805L/M provides an active high reset output, RESET instead of RESET. The family of products is fabricated using an advanced epitaxial CMOS process combining low power consumption and high reliability. RESET assertion is guaranteed with V They provide a pin-compatible upgrade for the MAX690A/ MAX692A/MAX802L/MAX802M/MAX805L All parts are available in 8-pin DIP and SOIC packages ...
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... ADM690A/ADM692A/ADM802L/M/ADM805L/M–SPECIFICATIONS ( 5.5 V (ADM690A/ADM802L/ADM805L unless otherwise noted) Parameter OPERATION CC BATT V Operating Voltage Range CC Supply Current (Excludes I ) OUT Supply Current in Battery Backup Mode Battery Standby Current (+ = Discharge, – = Charge) V Output Voltage OUT V in Battery Backup Mode OUT Battery Switchover Threshold ...
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... 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. RESET Active high RESET output (ADM805L/M only). This is the inverse of RESET. The asserted (high) level whichever is higher. ...
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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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... 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. The guaranteed minimum and maximum thresholds for the ADM805 are: ADM805L: 4 ...
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... V is 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. WDI The watchdog timer is disabled Power Fail Comparator The power fail comparator is an independent comparator that may be used to monitor the input power supply. The comparator’ ...
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... RESET V BATT * RESET + 0.1F GND * FOR ADM805L/ADM805M ONLY Figure 12. High Capacity Capacitor REV. 0 ADM690A/ADM692A/ADM802L/M/ADM805L/M Operation Without a Backup Supply If a backup power source is not used, V nected to GND and V Replacing the Backup Battery The backup battery may be replaced without any danger of spurious resetting when V reset threshold, a reset will not occur even if V while a replacement battery is being inserted ...
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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) ...