MAX6352MSUK+T

Overview

The MAX6352MSUK+T is a dual-supply voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 4.5V to 5.5V and features a low quiescent current of 20µA. The device provides active-low, open-drain reset outputs with a guaranteed minimum power-on reset pulse width of 100ms. It includes a debounced manual-reset input compatible with TTL/CMOS logic levels. The component is housed in a compact SOT-23-5 surface-mount package and is rated for operation across an extended temperature range from -40°C to +85°C.

Feature Summary

• Dual-input voltage monitoring with factory-set precision thresholds
• Ultra-low 20µA supply current for battery-powered efficiency
• Active-low open-drain reset output valid down to 1V supply
• Debounced manual reset input with TTL/CMOS compatibility

Applications

• Microprocessor system reliability enhancement
• Intelligent instruments requiring multi-voltage supervision
• Portable and battery-powered equipment
• Controllers in multivoltage systems

Procurement Notes

Verify the specific suffix MSUK against the official datasheet to confirm the exact threshold voltages and package variant. Confirm RoHS compliance status through manufacturer documentation. Check for obsolescence notices as Maxim Integrated products may have limited availability or end-of-life statuses. Ensure the operating temperature range matches the application environment requirements before procurement.

Selection Notes

Select this component when dual-supply monitoring is required in space-constrained designs. The SOT-23-5 package offers a small footprint suitable for portable applications. Consider the 20µA current consumption for battery life optimization. Verify that the open-drain output configuration aligns with the downstream logic interface requirements. Ensure the preset threshold voltages meet the system's power-sequence specifications without external components.

Part Context

This part belongs to the MAX6351–MAX6360 family of microprocessor supervisors designed to improve system accuracy compared to discrete solutions. These devices assert reset outputs if any monitored supply drops below its threshold. The series supports various voltage levels and packages, offering integrated watchdog timers and manual reset inputs in select variants to enhance system robustness.

Replacement Considerations

Direct substitutes include other members of the MAX635x family such as MAX6352MUK+T or MAX6352MSUK+T with matching threshold codes. Cross-reference with MAX6351 or MAX6353 variants if single-supply monitoring suffices. Verify pinout compatibility and electrical characteristics before substitution.