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ADM691AARN Datasheet(PDF) 2 Page - Analog Devices |
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ADM691AARN Datasheet(HTML) 2 Page - Analog Devices |
2 / 12 page ADM691A/ADM693A/ADM800L/M–SPECIFICATIONS –2– REV. 0 (VCC = 4.75 V to 5.5 V (ADM691A, ADM800L) 4.5 V to 5.5 V (ADM693A, ADM800M) VBATT = +2.8 V, TA = TMIN to TMAX unless otherwise noted) Parameter Min Typ Max Unit Test Conditions/Comments BATTERY BACKUP SWITCHING VCC, VBATT Operating Voltage Range 0 5.5 V VOUT Output Voltage VCC – 0.05 VCC – 0.02 V IOUT = 25 mA VCC – 0.3 VCC – 0.2 V IOUT = 250 mA VCC to VOUT Output Resistance 0.8 1.2 Ω VCC = 4.5 V VOUT in Battery Backup Mode VBATT – 0.3 V VBATT = 4.5 V, IOUT = 20 mA VBATT – 0.25 V VBATT = 2.8 V, IOUT = 10 mA VBATT – 0.15 V VBATT = 2.0 V, IOUT = 5 mA VBATT to VOUT Output Resistance 12 Ω VBATT = 4.5 V 20 Ω VBATT = 2.8 V 25 Ω VBATT = 2.0 V Supply Current (Excludes IOUT) 70 100 µAV CC > (VBATT – 1 V) Supply Current in B. Backup (Excludes IOUT) 0.04 1 µAV CC < (VBATT – 1.2 V), VBATT = 2.8 V Battery Standby Current 5.5 V > VCC > VBATT + 0.2 V (+ = Discharge, – = Charge) –0.1 +0.02 µA(V BATT +0.2 V) < VCC , TA = +25°C –1.0 +0.02 µA(V BATT +0.2 V) < VCC Battery Switchover Threshold VBATT + 0.03 V Power Up VCC–VBATT VBATT – 0.03 V Power Down Battery Switchover Hysteresis 60 mV BATT ON Output Voltage Low 0.1 0.4 V ISINK = 3.2 mA 0.7 1.5 V ISINK = 25 mA BATT ON Output Short Circuit Current 60 mA Sink Current 1 15 100 µA Source Current RESET AND WATCHDOG TIMER Reset Voltage Threshold ADM691A, ADM800L 4.5 4.65 4.75 V ADM693A, ADM800M 4.25 4.40 4.50 V ADM800L, VCC Falling 4.55 4.70 V TA = +25°C ADM800M, VCC Falling 4.3 4.45 V TA = +25°C Reset Threshold Hysteresis 15 mV VCC to RESET Delay 80 µs Power Down LOW LINE to RESET Delay 800 ns Reset Timeout Period Internal Oscillator 140 200 280 ms Power Up Reset Timeout Period External Clock 2048 Cycles Power Up Watchdog Timeout Period, Internal Oscillator 1.0 1.6 2.25 s Long Period 70 100 140 ms Short Period Watchdog Timeout Period, External Clock 4096 Cycles Long Period 1024 Cycles Short Period Minimum WDI Input Pulse Width 100 ns VIL = 0.4, VIH = 0.75 × VCC RESET Output Voltage 0.004 0.3 V ISINK = 50 µA, VCC = 1 V, VBATT = 0 V 0.1 0.4 V ISINK = 3.2 mA, VCC = 4.25 V 3.5 V ISOURCE = 1.6 mA, VCC = 5 V RESET Output Short Circuit Current 7 20 mA RESET Output Voltage Low 0.1 0.4 V ISINK = 3.2 mA LOW LINE Output Voltage 0.4 V ISINK = 3.2 mA, VCC = 4.25 V 3.5 V ISOURCE = 1 µA, VCC = 5 V LOW LINE Short Circuit Source Current 1 15 100 µA WDO Output Voltage 0.4 V ISINK = 3.2 mA, VCC = 4.25 V 3.5 V ISOURCE = 500 µA, VCC = 5 V WDO Short Circuit Source Current 3 10 mA WDI Input Threshold Logic Low 0.8 V Logic High 0.75 × V CC V WDI Input Current –50 –10 µA WDI = 0 V 20 50 µA WDI = VOUT POWER FAIL DETECTOR PFI Input Threshold ADM69xA 1.2 1.25 1.3 V VCC = 5 V PFI Input Threshold ADM800L/M 1.225 1.25 1.275 V VCC = 5 V PFI Input Current ±0.01 ±25 nA PFO Output Voltage 0.4 V ISINK = 3.2 mA 3.5 ISOURCE = 1 µA PFO Short Circuit Source Current 1 15 100 µA PFI to PFO Delay 25 µsV IN = –20 mV 60 µsV IN = 20 mV |
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