(Hong Kong)
Product Summary
The LTC1727ES8-2.5#TR is a triple supply monitor intended for systems with multiple supply voltages. The LTC1727ES8-2.5#TR has its own open-drain output for individual supply monitoring. A common open-drain reset output remains low until all three supplies have been in compliance for 200ms. Tight 1.5% accuracy specifications and glitch immunity ensure reliable reset operation without false triggering. The RST output is guaranteed to be in the correct state for VCC5/VCC25/VCC18 or VCC3 down to 1V. The LTC1727ES8-2.5#TR may also be configured to monitor any one or two VCC inputs instead of three, depending on system requirements. Applications are desktop computers, notebook computers, intelligent instruments, portable battery-powered equipment, network servers.
Parametrics
LTC1727ES8-2.5#TR absolute maximum ratings: (1)VCC3, VCC5/VCC25/VCC18, VCCA : –0.3V to 7V, RST : –0.3V to 7V; (2)COMPA, COMP3, COMP25/COMP5 (MS8 and SO-8 Only): –0.3V to 7V; (3)Operating Temperature Range: – 40℃ to 85℃; (4)Storage Temperature Range: –65℃ to 150℃; (5)Lead Temperature (Soldering, 10 sec): 300℃; (6)IVCC25 VCC25 Supply Current VCC25 < VCC3, VCC25 = 2.5V: 1 to 2 mA; (7)IVCC5 VCC5 Supply Current VCC5 = 5V, VCC3 < VCC5: 10 to 20 mA; (8)IVCCA VCCA Input Current VCCA = 1V: -15 to 15 nA; (9)tRST Reset Pulse Width RST Low with 10k Pull-Up to VCC3: 140 to 280 ms.
Features
LTC1727ES8-2.5#TR features: (1)±1.5% Threshold Accuracy Over Temperature; (2)Very Low Supply Current: 10mA Typ; (3)200ms Reset Time Delay; (4)Active Low RESET Output; (5)Power Supply Glitch Immunity; (6)Guaranteed RESET for VCC3 1V or VCC5/VCC25/VCC18 1V; (7)LTC1727 Includes Monitor Output for Each Supply; (8)LTC1727: 8-Lead MSOP and SO Packages; (9)LTC1728: 5-Lead SOT-23 Package.
Diagrams
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 LTC1727ES8-2.5#TR |
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IC MON TRPL SPPLY MICROPWR 8SOIC |
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LTC1727ES8-2.5#TRPBF |
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IC TRPL SPLY MONITOR 2.5V 8-SOIC |
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