LTC1985-1.8 Linear Technology Corporation, LTC1985-1.8 Datasheet
LTC1985-1.8
Related parts for LTC1985-1.8
LTC1985-1.8 Summary of contents
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... The LTC1985 is available in a 5-lead SOT-23 package. , LTC and LT are registered trademarks of Linear Technology Corporation. 3V 1.8V DC/DC 2. CC3 LTC1985-1 CC18 R1 130k 0 CCA R2 0.1 F 100k 1% LTC1985-1.8 Micropower Precision Triple Supply Monitor U down to 1V. The LTC1985 may also be CC3 inputs instead CC SYSTEM LOGIC 1 RST GND 1985-1.8 TA01 2 1 ...
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... LTC1985-1 ABSOLUTE AXI U RATI GS (Notes ...................................... – 0. CC3 CC18 CCA RST .......................................... – 0. Operating Temperature Range (Note 3) ............................................. – Storage Temperature Range ................ – 150 C Lead Temperature (Soldering, 10 sec)................ 300 C ELECTRICAL CHARACTERISTICS temperature range, otherwise specificaitons are at T ...
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... TEMPERATURE ( C) Reset Pulse Width vs Temperature 280 260 240 220 200 180 160 140 100 –60 –40 – TEMPERATURE ( C) CC LTC1985-1.8 V Input Current CCA vs Input Voltage 2 1.5 1.0 0.5 0 – 0.5 –1.0 –1.5 – 2.0 80 0.80 0.85 0.95 1 1.05 100 0.90 INPUT VOLTAGE (V) 1985-18 G02 ...
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... LTC1985-1 TYPICAL PERFOR A CE CHARACTERISTICS RST High Level Output Voltage vs Output Source Current 3 3.0V CC3 CC18 CCA 3.0 2.5 2.0 – 0.2 0.4 0.6 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 0.8 I (mA) SOURCE 1985-81 G10 CTIO S RST (Pin 1): Reset Logic Output. Active low, 3V push- pull output. Asserted when one or all of the supplies are below trip thresholds and held for 200ms after all sup- plies become valid ...
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... W BLOCK DIAGRA V 5 CC3 POWER DETECT V 4 CC18 V 3 CCA GND DIAGRA V CCX RST – INTERNAL CC – 200ms PULSE GENERATOR 200ms + DELAY – + BANDGAP REFERENCE V Monitor Timing CC V RTX t RST t UV 1.5V LTC1985-1.8 LTC1985-1.8 V CC3 1 RST 1985-18 BD 1985- ...
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... V their thresholds. Power-Down On power-down, once any of the V CC threshold, RST is held at a logic low. A logic low of 0.3V is guaranteed until both V and V CC3 CC18 LTC1985-1 CC3 4 1.8V V CC18 R1 3 ...
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... TA04 ADJUSTABLE RESET TRIP THRESHOLD 2.31V LTC1985-1.8 Input) CCA LTC1985-1 RST SYSTEM RESET CC3 4 V CC18 3 V CCA 2 GND 1985-18 TA03 Tied to DC/DC Feedback Divider CCA 2.5V 27.4k LTC1985-1 SYSTEM RESET V RST CC3 4 2.26k 1.8V V CC18 CCA 2 22.6k GND 1% 1985-18 TA05 7 ...
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... FIVE PLACES (NOTE 2) (NOTE 2) SYSTEM RESET 1 RST V CC3 LTC1985-1.8 V CC18 V CCA GND 1985-18 TA07 2 2.80 – 3.00 (0.110 – 0.118) (NOTE 3) 0.95 1.90 (0.037) (0.074) REF REF ...