LTC2937IUHE#TRPBF

Power Supply Controllers, Monitors Overview

The LTC2937IUHE#TRPBF is a six-channel power supply sequencer and voltage supervisor manufactured by Analog Devices Inc. It operates within a supply voltage range of 4.5V to 16.5V, with an internal core voltage of 2.9V to 5.5V. The device draws a typical supply current of 1 mA and functions reliably across an industrial temperature range of -40°C to +85°C. Housed in a 28-lead QFN package, it provides precise timing control for up to six independent power rails.

Power Supply Controllers, Monitors Feature Summary

• Provides flexible sequence control for enabling and disabling up to six power supplies with configurable order and time delays.
• Monitors power-up and power-down times along with overvoltage and undervoltage conditions for autonomous supervision.
• Stores configuration data in non-volatile EEPROM to ensure automatic power system supervision without external memory.
• Coordinates sequencing activities with other compatible devices in the system through cooperative fault response mechanisms.

Power Supply Controllers, Monitors Applications

• Complex embedded systems requiring multi-rail power sequencing
• Industrial equipment with strict power-up/down timing requirements
• Telecommunications infrastructure utilizing multiple voltage domains
• Automotive electronic control units needing robust voltage supervision

Power Supply Controllers, Monitors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm lot traceability and RoHS compliance status prior to integration. Ensure storage conditions meet specified humidity and temperature limits to prevent moisture sensitivity issues during assembly. Validate package marking against official datasheet specifications to avoid counterfeit substitution risks.

Power Supply Controllers, Monitors Selection Notes

Select this component when precise multi-channel sequencing and voltage monitoring are required in a compact footprint. Consider the 28QFN package constraints for PCB layout and thermal management. Evaluate the 1 mA supply current against total system power budgets. Ensure input voltages remain within the 4.5V to 16.5V operational range for reliable performance.

Power Supply Controllers, Monitors Part Context

This part belongs to the LTC2937 family of programmable power sequencers. It integrates supervisory functions with sequencing logic to simplify power management design. The device eliminates the need for discrete timing components and external memory by using internal EEPROM. It supports complex power architectures common in modern electronics.

Power Supply Controllers, Monitors Replacement Considerations

Direct substitutes include other Analog Devices six-channel sequencers such as the LTC2937IDHC#TRPBF for different package options. Verify pin compatibility and electrical specifications before swapping. Cross-reference timing parameters and voltage thresholds to ensure functional equivalence in the specific application circuit.

Power Supply Controllers, Monitors FAQ

How does the LTC2937 handle power supply faults?

It provides flexible fault responses to autonomously supervise power supplies and includes debug tools to diagnose problems causing power-supply faults.

What is the operating supply voltage range?

The device operates with an input voltage between 4.5V and 16.5V, while the internal supply voltage ranges from 2.9V to 5.5V.

Does the device retain configuration after power loss?

Yes, it holds configuration in non-volatile EEPROM for completely automatic power system supervision upon restart.