MAX6338JUB+T

Overview

The MAX6338JUB+T is a quad voltage monitor from Analog Devices, housed in a 10-pin uMAX package. It monitors four supply voltages with factory-trimmed thresholds of 2.5V, 3.3V, and 5V, plus an adjustable channel. Operating between 2.5V and 5.5V, it draws 35µA and features active-low open-drain outputs. The device ensures system reliability by providing reset signals when monitored rails fall below or exceed specified limits within the -40°C to +85°C industrial temperature range.

Feature Summary

• Monitors up to four independent power supplies without external components
• Provides active-low open-drain reset outputs for reliable signal interfacing
• Includes one high-impedance comparator input for customizable threshold monitoring

Applications

• Industrial control systems requiring multi-rail power supervision
• Portable equipment utilizing multiple voltage domains
• Embedded systems needing automated power-on reset sequencing

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging configuration. Confirm the 'J' grade corresponds to the specific industrial temperature range and threshold tolerances documented in the official datasheet. Ensure compatibility with the 10-uMAX footprint during procurement validation.

Selection Notes

Select this component when simultaneous monitoring of four distinct voltage rails is required. The integrated adjustable channel allows flexibility for non-standard voltage levels. Verify that the open-drain output architecture aligns with the target system's pull-up requirements and logic voltage levels.

Part Context

This part belongs to the MAX6338 family of quad voltage supervisors designed for compact surface-mount applications. It consolidates multiple discrete monitoring functions into a single small outline package, reducing board space and component count compared to individual supervisor ICs.

Replacement Considerations

Direct substitutes include other MAX6338 variants such as MAX6338IUB+T or MAX6338CUB+T, provided their specific threshold voltages and accuracy grades match the design requirements.