LTC2911ITS8-4#TRMPBF

Supervisors Overview

The LTC2911ITS8-4#TRMPBF is a precision supervisory circuit manufactured by Analog Devices Inc., designed for monitoring multiple voltage rails in embedded systems. It features three independent voltage monitor channels with push-pull outputs and an integrated power-fail comparator. The device provides active-low reset signals with selectable timeout durations to ensure system stability during power transitions. Operating within a supply voltage range of 1.6V to 5.5V, it maintains low quiescent current consumption suitable for battery-powered applications. The component is housed in an 8-pin TSOT-23 package, supporting surface-mount assembly for compact PCB designs.

Supervisors Feature Summary

• Integrates three independent voltage monitoring channels with precise threshold detection capabilities
• Includes a dedicated power-fail comparator for proactive system shutdown management
• Offers selectable reset timeout periods to accommodate various system startup requirements
• Provides active-low reset output with push-pull drive capability for direct logic interfacing

Supervisors Applications

• Multi-rail power supervision in industrial control systems
• Voltage monitoring for portable electronic devices requiring low standby current
• System reset generation in microprocessor-based embedded architectures
• Power-fail signaling in battery-operated instrumentation

Supervisors Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to confirm threshold configurations and package variants. Ensure compatibility with target operating temperature ranges and supply voltage specifications before integration. Cross-reference pinout assignments with the latest datasheet revision to prevent interface mismatches during PCB layout. Confirm RoHS compliance status through manufacturer declarations if environmental regulations apply to the end product.

Supervisors Selection Notes

Evaluate the required number of monitored voltage rails to determine if the three-channel architecture meets system needs. Consider the necessity of a power-fail comparator for early warning shutdown sequences versus standard reset-only solutions. Assess available board space constraints relative to the TSOT-23-8 footprint dimensions. Review reset timeout options to align with processor initialization timing requirements without introducing unnecessary delays.

Supervisors Part Context

This component belongs to the LTC2911 series of multi-supervisor circuits from Analog Devices, which focus on reliable power management in space-constrained applications. The ITS8-4 variant specifically denotes the industrial temperature grade and particular threshold configuration within the family. It complements other PMIC offerings by providing dedicated supervision functions rather than regulation, ensuring system integrity through precise voltage tracking.

Supervisors Replacement Considerations

LTC2911ITS8-1#TRMPBF

Supervisors FAQ

What is the function of the power-fail output?

The power-fail output indicates when the supply voltage drops below a predefined threshold, allowing the system to initiate safe shutdown procedures before complete power loss occurs.

How are reset timeouts configured?

Reset timeouts are selectable via external resistor networks or internal settings, allowing designers to choose appropriate delay periods that match processor startup times.