MAX6338OUB+T

Overview

The MAX6338OUB+T is a quad voltage monitor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors up to four power supplies without external components, featuring active low open-drain outputs and a reset timeout of less than 1ms minimum. The device operates within a supply voltage range of 2.5V to 5.5V, with a typical quiescent current of 35µA. Threshold voltages include fixed options such as -4.38V, 2.93V, 4.38V, and adjustable settings. It is housed in a 10-uMAX package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Monitors up to four independent power supply rails simultaneously
• Provides active low open-drain reset outputs for system supervision
• Includes factory-trimmed threshold voltages and adjustable comparator options
• Operates with low quiescent current for efficient power management

Applications

• Portable equipment requiring multi-voltage monitoring
• Battery-powered systems needing power supervision
• Consumer electronics utilizing multiple logic levels
• Industrial control boards with mixed voltage domains

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging versus tube variants. Confirm RoHS compliance status through official documentation, as some sources indicate non-compliance for specific revisions. Ensure the manufacturer part number matches Analog Devices or Maxim Integrated records. Check availability constraints as distribution may be limited in certain regions. Validate pinout compatibility with target PCB footprint before ordering.

Selection Notes

Select this component when simultaneous monitoring of four distinct voltage rails is required. Choose based on specific threshold requirements, noting available fixed values like -4.38V and 2.93V alongside adjustable options. Consider the 10-uMAX package size for space-constrained designs. Verify that the open-drain output configuration aligns with the downstream logic interface requirements.

Part Context

This part belongs to the MAX6338 series of quad voltage monitors. It shares functional similarities with other members like MAX6338CUB+ and MAX6338BUB+, differing primarily in specific threshold voltage selections and package variations. The series is designed for applications requiring compact, multi-channel power supervision without external components.

Replacement Considerations

Direct substitutes within the same family include MAX6338OUB+ (tube packaging) and potentially MAX6338MUB+ depending on threshold matching. Cross-reference datasheets to ensure threshold voltages and package dimensions are compatible before substitution.