adm697ar-reel Analog Devices, Inc., adm697ar-reel Datasheet
adm697ar-reel
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adm697ar-reel Summary of contents
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FEATURES Superior Upgrade for MAX696/MAX697 Specified Over Temperature Adjustable Low Line Voltage Monitor Power OK/Reset Time Delay Reset Assertion Down Watchdog Timer—100 ms, 1 Adjustable Low Switch On Resistance 1.5 Normal ...
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ADM696/ADM697–SPECIFICATIONS P arameter V Operating Voltage Range CC V Operating Voltage Range BATT BATTERY BACKUP SWITCHING (ADM696) V Output Voltage OUT V in Battery Backup Mode OUT Supply Current (Excludes I ) OUT Supply Current in Battery Backup Mode Battery ...
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... ADM696AN – +85 C ADM696AR – +85 C ADM696AQ – +85 C ADM696SQ – +125 C ADM697AN – +85 C ADM697AR – +85 C ADM697AQ – +85 C ADM697SQ – +125 C REV. 0 Power Dissipation, R-16 SOIC . . . . . . . . . . . . . . . . . . 600 mW Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 110 C/W JA Operating Temperature Range Industrial (A Version .– ...
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ADM696/ADM697 Pin No. Mnemonic ADM696 ADM697 — BATT V 2 — OUT GND 4 5 RESET 15 15 WDI 11 11 PFI 9 9 PFO — — 12 ...
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CIRCUIT INFORMATION Battery-Switchover Section (ADM696) The battery switchover circuit compares V input, and connects V to whichever is higher. Switchover OUT occurs when higher than V CC when greater than V CC ...
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ADM696/ADM697 Table I. ADM696, ADM697 Reset Pulse Width and Watchdog Timeout Selections OSC SEL OSC IN Low External Clock Input Low External Capacitor Floating or High Low Floating or High Floating or High NOTE With the OSC SEL pin low, ...
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CE Gating and RAM Write Protection (ADM697) The ADM697 contains memory protection circuitry which ensures the integrity of data in memory by preventing write operations when LL is below the threshold voltage. When greater than 1.3 V, ...
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ADM696/ADM697–Typical Performance Curves 5.00 4.95 4.90 SLOPE = 1.5Ω 4.85 4. – mA OUT Figure 8. V vs. I Normal Operation OUT OUT 2.80 2.79 2.78 SLOPE = 20Ω 2.77 2.76 0 200 400 600 I ...
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APPLICATIONS INFORMATION Increasing the Drive Current (ADM696) If the continuous output current requirements at V 100 lower V –V voltage differential is desired, CC OUT an external PNP pass transistor may be connected in parallel with ...
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ADM696/ADM697 Replacing the Back-Up Battery When changing the back-up battery with system power on, spu- rious resets can occur when the battery is removed. This occurs because the leakage current flowing out of the V charge up the stray capacitance. ...
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This application also shows an optional, external transistor which may be used to provide in excess of 100 mA current When V is higher than V , the BATT ON output OUT CC BATT goes low, providing ...
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