MAX1693HEUB+

Overview

The MAX1693HEUB+ is a single-channel P-channel power switch IC designed for USB current-limited applications. It operates within a load voltage range of 2.7V to 5.5V and supports a maximum continuous output current of 700mA. The device features a typical on-resistance of 60mΩ and includes integrated fault protection mechanisms such as fixed current limiting and overtemperature shutdown. It utilizes a non-inverting interface and provides a status flag for monitoring. The component is housed in a compact 10-uMAX/uSOP package and is qualified for an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates fixed current limiting and overtemperature fault protection for robust load management.
• Provides a status flag output to indicate operational state or fault conditions.
• Features low on-resistance for efficient power distribution in USB applications.

Applications

• USB port power switching and protection
• Peripheral device power distribution
• Hot-swap circuitry

Procurement Notes

Verify the specific suffix 'HEUB+' against the manufacturer's official datasheet to confirm pinout, thermal pad configuration, and RoHS compliance status. Ensure the selected package variant matches the PCB footprint requirements. Cross-reference the part number with Analog Devices documentation to validate availability and revision history before finalizing procurement specifications.

Selection Notes

Select this component when designing circuits requiring precise current limiting for USB peripherals. The P-channel topology simplifies high-side switching control. Consider the 60mΩ on-resistance for thermal management calculations at full load. The non-inverting input logic must align with the system control interface. Verify that the 700mA limit meets the downstream load requirements without triggering unnecessary shutdowns.

Part Context

This device belongs to the MAX1693 family of power distribution switches from Maxim Integrated, now part of Analog Devices. These components are engineered for portable electronics and industrial systems needing reliable power path management. The series emphasizes compact packaging and integrated safety features to protect both the source and the load from electrical faults.

Replacement Considerations

Consult the official Analog Devices cross-reference guide for verified substitutes. Ensure any replacement maintains the 10-uMAX package dimensions and compatible electrical characteristics, specifically the 700mA current rating and 2.7V-5.5V voltage range.

FAQ

What fault protections are included in the MAX1693HEUB+?

The device includes fixed current limiting and overtemperature shutdown to protect against short circuits and excessive heat.

How does the status flag function?

The status flag provides a digital indication of the switch's state, allowing the system to monitor for faults or normal operation.