LTC2919HMS-3.3#TRPBF

Supervisors Overview

The LTC2919HMS-3.3#TRPBF is a micropower supervisor IC from Analog Devices, designed for precise supply monitoring in space-constrained applications. It features three independent voltage monitor channels with open-drain outputs and low-active reset functionality. The device supports UV, OV, and negative voltage detection with adjustable thresholds on two channels and a fixed threshold on the third. Operating within a temperature range of 0°C to 70°C, it utilizes a compact 10-MSOP package. The part includes a minimum reset timeout of 140ms and draws minimal quiescent current, making it suitable for battery-powered and portable systems requiring reliable power management.

Supervisors Feature Summary

• Provides triple-channel voltage supervision with open-drain outputs for flexible system integration
• Features low-active reset signal with configurable timeout delays for stable power sequencing
• Supports under-voltage, over-voltage, and negative voltage monitoring capabilities
• Delivers high precision in a compact surface-mount package for space-sensitive designs

Supervisors Applications

• Desktop computer power supply monitoring
• Portable electronic device power management
• Battery-operated equipment supervision
• Industrial control system voltage tracking

Supervisors Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the H-grade designation aligns with the required commercial temperature range of 0°C to 70°C for your application environment. Ensure compatibility with the 10-MSOP footprint during PCB layout. Cross-reference the manufacturer's latest datasheet for any recent pinout or electrical specification updates before finalizing procurement.

Supervisors Selection Notes

Select this component when multiple voltage rails require simultaneous monitoring within a limited board area. The fixed 3.3V threshold channel simplifies design for standard logic supplies, while adjustable channels accommodate custom rail requirements. Consider the open-drain output configuration for level shifting needs. Evaluate the quiescent current consumption against strict battery life targets to ensure optimal efficiency in low-power standby modes.

Supervisors Part Context

This part belongs to the LTC2919 family of micropower supervisors, which offers versatile monitoring solutions for various industrial and consumer electronics. The MSOP package variant provides a balance between thermal performance and spatial efficiency compared to larger packages. It complements other Analog Devices PMIC offerings by providing dedicated fault detection without complex digital interfaces, serving as a robust hardware-level safety mechanism for critical power rails.

Supervisors Replacement Considerations

Direct substitutes include other parts within the LTC2919 series such as LTC2919CMS-3.3#TRPBF or LTC2919CDDB-3.3#TRMPBF, depending on preferred packaging like TSSOP or DFN. Verify that alternative candidates maintain identical pinouts and electrical characteristics to ensure drop-in compatibility without redesigning the surrounding circuitry.