LTC1726 Series
Triple Supply Monitor and µP Supervisor with Adjustable Reset and Watchdog Timer
Manufacturer: Analog Devices
Catalog
Triple Supply Monitor and µP Supervisor with Adjustable Reset and Watchdog Timer
| Part | Reset Timeout | Voltage - Threshold | Voltage - Threshold | Number of Voltages Monitored | Operating Temperature [Max] | Operating Temperature [Min] | Reset | Mounting Type | Type | Output | Package / Case | Package / Case [y] | Package / Case [x] | Supplier Device Package | Package / Case [custom] | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices | Adjustable/Selectable | Adj | 2.337 V 3.085 V | 3 | 85 °C | -40 °C | Active Low | Surface Mount | Multi-Voltage Supervisor | Open Drain or Open Collector | 8-SOIC | 3.9 mm | 0.154 in | 8-SO | ||
Analog Devices | Adjustable/Selectable | Adj | 2.337 V 3.085 V | 3 | 85 °C | -40 °C | Active Low | Surface Mount | Multi-Voltage Supervisor | Open Drain or Open Collector | 8-SOIC | 3.9 mm | 0.154 in | 8-SO | ||
Analog Devices | Adjustable/Selectable | Adj | 3.085 V 4.675 V | 3 | 85 °C | -40 °C | Active Low | Surface Mount | Multi-Voltage Supervisor | Open Drain or Open Collector | 8-SOIC | 3.9 mm | 0.154 in | 8-SO | ||
Analog Devices | Adjustable/Selectable | Adj | 3.085 V 4.675 V | 3 | 85 °C | -40 °C | Active Low | Surface Mount | Multi-Voltage Supervisor | Open Drain or Open Collector | 8-SOIC | 3.9 mm | 0.154 in | 8-SO | ||
Analog Devices | Adjustable/Selectable | Adj | 3.085 V 4.675 V | 3 | 85 °C | -40 °C | Active Low | Surface Mount | Multi-Voltage Supervisor | Open Drain or Open Collector | 8-MSOP 8-TSSOP | 8-MSOP | 0.118 in | 3 mm |
Key Features
• Monitors Three Inputs SimultaneouslyLTC1726-5: 5V, 3.3V and ADJLTC1726-2.5: 2.5V, 3.3V and ADJ
• LTC1726-5: 5V, 3.3V and ADJ
• LTC1726-2.5: 2.5V, 3.3V and ADJ
• ±1.5% Threshold Accuracy Over Temperature
• Low Supply Current: 16μA Typ
• Adjustable Reset Timeout
• Adjustable Watchdog Timeout
• Active Low Open-Drain Reset Output
• Power Supply Glitch Immunity
• GuaranteedRESETfor VCC3≥ 1V or VCC25/VCC5≥ 1V
• MS8 and SO-8 Packages
Description
AI
The LTC1726 is a triple supply monitor and microprocessor supervisory circuit with adjustable reset and watchdog functions intended for systems with multiple supply voltages. The part has a common open-drain reset output with an adjustable delay. The reset and watchdog time-out periods are both adjustable using external capacitors.Tight 1.5% accuracy specifications and glitch immunity ensure reliable reset operation without false triggering.TheRSToutput is guaranteed to be in the correct state for VCC5/VCC25or VCC3down to 1V. The LTC1726 may also be configured to monitor any one or two VCCinputs instead of three, depending on system requirements.The low (16μA typical) supply current makes the LTC1726 ideal for power-conscious systems.ApplicationsDesktop ComputersNotebook ComputersIntelligent InstrumentsPortable Battery-Powered EquipmentNetwork Servers