ADM690A Analog Devices, ADM690A Datasheet
ADM690A
Specifications of ADM690A
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ADM690A Summary of contents
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... 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. The ADM690A is also available in a new space-saving microSOIC package. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 ...
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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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... 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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... 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 4.92 4.9 4.88 4.86 4. Figure 4. Output Voltage vs. Load Current in Normal Operation 2µs Figure 5. Power Fail Comparator Response Time 10µs – ...
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... CC V falls below the reset threshold, the RESET output is forced CC low. The nominal reset voltage threshold is 4.65 V (ADM690A/ ADM802L/ADM805L or 4.4 V ADM692A/ADM802M/ ADM805M. On power-up RESET will remain low for 200 ms after V above the reset threshold. This allows time for the power supply and microprocessor to stabilize ...
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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) ...