ADM691A Analog Devices, ADM691A Datasheet
ADM691A
Specifications of ADM691A
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ADM691A Summary of contents
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... MAX691A/93A/800M family of products. All parts are available in 16-pin DIP and SO packages. The ADM691A is also available in a space-saving TSSOP package. The following functionality is provided: 1. Power-on reset output during power-up, power-down and brownout conditions. The circuitry remains operational with V as low ...
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... ADM691A/ADM693A/ADM800L/M–SPECIFICATIONS ( 5.5 V (ADM691A, ADM800L) 4 5.5 V (ADM693A, ADM800M Parameter BATTERY BACKUP SWITCHING Operating Voltage Range CC BATT V Output Voltage OUT Output Resistance CC OUT V in Battery Backup Mode OUT Output Resistance BATT OUT Supply Current (Excludes I ) OUT Supply Current in B. Backup (Excludes I Battery Standby Current (+ = Discharge, – ...
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... V – 0.4 V – 0.6 OUT OUT 3.65 2.00 100 Model + 0.5 V OUT ADM691AAN ADM691AARN ADM691AARW ADM691AARU ADM693AAN ADM693AARN ADM693AARW ADM800LAN ADM800LARN ADM800LARW ADM800MAN ADM800MARN ADM800MARW Table I. Product Selection Table Watchdog Battery Backup CC Timeout Switching 3% 100 ms, 1.6 s, Adj. Yes 3% 100 ms, 1.6 s, Adj. Yes 2% 100 ms, 1 ...
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... CE OUT falls below the Reset Threshold. It remains low for 200 ms typ after CC PIN CONFIGURATIONS RESET BATT RESET OUT WDO ADM691A CC ADM693A GND ADM800L CE BATT ADM800M LOW LINE 6 11 WDI TOP VIEW (Not to Scale) ...
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... TEMPERATURE – C Figure 3. I vs. Temperature: Battery Backup Mode BATT –50 – TEMPERATURE – C Figure 4. Chip Enable ON-Resistance vs. Temperature REV. 0 ADM691A/ADM693A/ADM800L/M 1.2 1.1 1.0 0.9 0.8 0.7 0.6 –50 75 100 125 Figure Figure 6. V ...
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... ADM691A/ADM693A/ADM800L 0.5 1.0 1.5 2.0 2.5 3.0 V – Figure 8. Battery Current vs. Input Supply Voltage 100 LONG WATCHDOG TIMEOUT PERIOD 10 RESET ACTIVE TIMEOUT PERIOD = > 1 SHORT WATCHDOG TIMEOUT PERIOD 0.1 10 100 C – pF OSC Figure 9. Watchdog and Reset Timeout Period vs. OSC IN Capacitor 7.0 6.5 6.0 5.5 5.0 4.5 4.0 –50 – ...
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... OSC IN pin. Refer to Table II. The guaranteed minimum and maximum thresholds of the ADM691A/ADM800L are 4.5 V and 4.75 V, while the guaran- teed thresholds of the ADM693A/ADM800M are 4.25 V and 4.5 V. The ADM691A/ADM800L is therefore compatible with 5 V supplies with a +10%, –5% tolerance while the ADM693A/ ADM800M is compatible with 5 V 10% supplies ...
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... ADM691A/ADM693A/ADM800L/M Changing the Watchdog and Reset Timeout The watchdog and reset timeout periods may be controlled us- ing OSC SEL and OSC IN. Please refer to Table II. With both these inputs floating (or connected to V reset timeout is fixed at 200 ms and the watchdog timeout is fixed at 1.6 sec.. If OSC IN is connected to GND as in Figure ...
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... V power supply falls below the reset threshold. PFO is normally used to interrupt the microprocessor so that data can be stored in RAM and the shut- down proce- dure executed before power is lost. REV. 0 ADM691A/ADM693A/ADM800L/M POWER Table III. Input and Output Status in Battery Backup Mode Signal V ...
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... ADM691A/ADM693A/ADM800L/M APPLICATIONS INFORMATION INCREASING THE DRIVE CURRENT If the continuous output current requirements at V 250 lower V –V voltage differential is desired OUT external PNP pass transistor may be connected in parallel with the internal transistor. The BATT ON output can drive the base of the external transistor via a current limiting transistor. ...
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... BATTERY –11– 0.1µF 0.1µ BATT CC OUT ON CMOS OUT BATT RAM ADM691A ADDRESS ADM693A CE IN DECODE ADM800L PFI ADM800M GND WDI OSC IN PFO OSC SEL RESET LOW LINE WDO 0.1µF RESET SYSTEM STATUS INDICATORS Figure 24. Typical Application Circuit A0– ...
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... ADM691A/ADM693A/ADM800L/M 16-Lead Plastic DIP (N-16) 0.840 (21.33) 0.745 (18.93 0.280 (7.11) 0.240 (6.10 PIN 1 0.060 (1.52) 0.015 (0.38) 0.210 (5.33) MAX 0.130 (3.30) 0.160 (4.06) MIN 0.115 (2.93) 0.100 0.070 (1.77) SEATING 0.022 (0.558) PLANE (2.54) 0.045 (1.15) 0.014 (0.356) BSC 16-Lead Wide SOIC (R-16W) 0.4133 (10.50) 0.3977 (10.00 0.1043 (2.65) PIN 1 0.0118 (0.30) 0.0926 (2.35) ...