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LTC695-3.3 Datasheet(PDF) 4 Page - Linear Technology |
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LTC695-3.3 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 20 page  LTC694-3.3/LTC695-3.3 4 69453fb ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, VBATT = 2V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS Battery Back-Up Switching Operating Voltage Range VCC VBATT l l 3.0 1.5 5.50 2.75 V V VOUT Output Voltage IOUT = 1mA l VCC – 0.1 VCC – 0.2 VCC – 0.01 VCC – 0.01 V V IOUT = 50mA l VCC – 0.8 VCC – 0.4 V VOUT in Battery Back-Up Mode IOUT = 250μA, VCC < VBATT l VBATT – 0.1 VBATT – 0.02 V Supply Current (Exclude IOUT)IOUT ≤ 50μA, VCC = 3.6V l 0.2 0.2 0.6 1.0 mA mA Supply Current in Battery Back-Up Mode VCC = 0V, VBATT = 2V l 0.04 0.04 1 5 μA μA Battery Standby Current (+ = Discharge, – = Charge) 3.6V > VCC > VBATT + 0.2V l –0.02 –0.10 0.02 0.10 μA μA Battery Switchover Threshold (VCC – VBATT) Power-Up Power-Down 70 50 mV mV Battery Switchover Hysteresis 20 mV BATT ON Output Voltage (Note 4) ISINK = 800μA l 0.3 V BATT ON Output Short-Circuit Current (Note 4) BATT ON = VOUT, Sink Current BATT ON = 0V, Source Current l 0.5 25 125 mA μA Reset and Watchdog Timer Reset Voltage Threshold l 2.8 2.9 3.0 V Reset Threshold Hysteresis 40 mV Reset Active Time OSC SEL HIGH, VCC = 3V l 160 140 200 200 240 280 ms ms Watchdog Timeout Period, Internal Oscillator Long Period, VCC = 3V l 1.2 1.0 1.6 1.6 2.0 2.25 sec sec Short Period, VCC = 3V l 80 70 100 100 120 140 ms ms Watchdog Timeout Period, External Clock (Note 5) Long Period, VCC = 3V Short Period, VCC = 3V l l 4032 960 4097 1025 Clock Cycles Reset Active Time PSRR 4 ms/V Watchdog Timeout Period PSRR, Internal OSC Short Period Long Period 2 32 ms/V ms/V Minimum WDI Input Pulse Width VIL = 0.4V, VIH = 3V l 200 ns RESET Output Voltage at VCC = 1V ISINK = 10μA, VCC = 1V l 4 200 mV RESET and LOW _ LINE Output Voltage (Note 4) ISINK = 400μA, VCC = 2.8V ISOURCE = 0.1μA, VCC = 3V l l 2.3 0.3 V V RESET and WDO Output Voltage (Note 4) ISINK = 400μA, VCC = 3V ISOURCE = 0.1μA, VCC = 2.8V l l 2.3 0.3 V V RESET, RESET, WDO, LOW _ LINE Output Short-Circuit Current (Note 4) Output Source Current Output Sink Current l 13 9 25 μA mA WDI Input Threshold Logic Low Logic High l l 2.3 0.4 V V WDI Input Current WDI = VOUT WDI = 0V l l –50 4 –8 50 μA μA |
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Similar Description - LTC695-3.3_15 |
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