MAX6424UK33+T

Supervisors Overview

The MAX6424UK33+T is a low-power microprocessor supervisor circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors system voltages and asserts a reset signal when the supply voltage falls below its threshold. The device features an active-low, push-pull reset output and utilizes a capacitor-adjustable reset timeout delay for flexible timing control. It operates within a supply voltage range of 1.6V to 5.5V with a typical operating current of 2.5µA. The reset threshold voltage is fixed at 3.3V, and the accuracy is specified at 1.5%. The component is housed in a compact SOT-23-5 surface-mount package and supports an extended industrial temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Capacitor-adjustable reset timeout delay provides flexible timing configuration
• Active-low, push-pull reset output ensures strong drive capability
• Ultra-low power consumption suitable for battery-operated systems
• Integrated precision bandgap reference for accurate voltage monitoring

Supervisors Applications

• Portable electronic devices requiring low standby current
• Battery-powered instrumentation systems
• Microprocessor power supply supervision
• Consumer electronics with strict power constraints

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm RoHS compliance status and lead times prior to procurement planning. Ensure storage conditions adhere to moisture sensitivity level requirements to maintain reliability during assembly processes.

Supervisors Selection Notes

Select this component when a fixed 3.3V threshold is required alongside adjustable reset timing. Compare against the MAX6425 series if open-drain outputs are preferred instead of push-pull. Evaluate the MAX6464 family if internal fixed timeouts are sufficient, eliminating the need for external capacitors.

Supervisors Part Context

This part belongs to the MAX642x series of low-power supervisors designed for single-input voltage monitoring. It complements the MAX6421–MAX6426 family, which offers various output configurations and packages. The UK suffix indicates the SOT-23-5 package variant, while the +T denotes tape-and-reel packaging for automated assembly.

Supervisors Replacement Considerations

Direct substitutes include MAX6424UK33+ (cut tape) or MAX6424UK33+TTR. Cross-reference with MAX6425UK33+T if open-drain output compatibility is acceptable.