LTC2933CDHD#PBF

Supervisors Overview

The LTC2933CDHD#PBF is a six-channel voltage supervisor IC from Analog Devices, designed for robust power-system supervision in safety-critical automotive applications. It utilizes a factory-set reset threshold to monitor voltages ranging from 1.1V to 5V. The device operates within an extended temperature range of 0°C to +125°C and is housed in a compact 16-lead DFN (5x4mm) package. Key electrical specifications include a maximum supply voltage of 13.9V and programmable reset delay times, ensuring reliable system monitoring under varying load conditions.

Supervisors Feature Summary

• Six independent channel monitoring capabilities for comprehensive power supervision
• Factory-set reset thresholds eliminating external resistor networks
• Programmable reset delay times for customized timing requirements
• Automotive-grade reliability with extended temperature operation

Supervisors Applications

• Safety-critical automotive electronic systems
• Multi-rail power distribution units
• Industrial control system supervision
• Battery backup switching circuits

Supervisors Procurement Notes

Verify the specific reset threshold voltage required for your application against the datasheet options, as these are factory-set. Confirm the operating temperature range meets your environmental specifications. Ensure the 16-lead DFN footprint matches your PCB layout constraints. Cross-reference the latest datasheet revision for any updates to electrical characteristics or recommended soldering profiles before finalizing procurement.

Supervisors Selection Notes

Select this component when multiple voltage rails require simultaneous supervision without complex external circuitry. The integrated design reduces board space compared to discrete solutions. Consider the programmable delay feature if noise immunity or startup sequencing requires specific timing margins. Verify that the input voltage range aligns with the monitored rails, noting the 1.1V minimum threshold limitation.

Supervisors Part Context

This part belongs to the LTC2933 family of multi-channel supervisors, offering a consolidated solution for power management integrity. It replaces multiple single-channel monitors, simplifying bill-of-materials and reducing assembly complexity. The DFN package provides thermal performance suitable for dense PCB layouts common in modern automotive and industrial electronics designs.

Supervisors Replacement Considerations

Direct substitutes may include other multi-channel supervisors from Analog Devices such as the LTC2934 series, which offers similar functionality with different pinout or threshold configurations. Verify compatibility regarding reset output type, delay programming method, and package dimensions before substitution.