MAX6337US16D2-T

Overview

The MAX6337US16D2-T is a single-channel voltage supervisor IC manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of up to 5.5 V and features a fixed threshold voltage of 1.6 V. The device provides an active low, open-drain output with a reset delay time of 150 ms. It is housed in a compact SOT-143-4 surface-mount package. Key electrical specifications include a quiescent current of 3.3 uA, an overvoltage threshold of 1.64 V, and a power dissipation rating of 320 mW. The component supports an extended operating temperature range from -40°C to +125°C.

Feature Summary

• Provides reliable system reset functionality through a dedicated voltage monitoring channel with a fixed 1.6 V threshold.
• Features an active low, open-drain output interface suitable for direct connection to microcontroller reset pins.
• Designed for ultra-low power consumption with a typical quiescent current of 3.3 uA to extend battery life.
• Operates reliably across a wide industrial temperature range from -40°C to +125°C.

Applications

• Microprocessor reset circuits in embedded systems
• Battery-powered portable devices requiring low standby current
• Industrial control systems operating in extreme temperatures
• Consumer electronics with limited power budgets

Procurement Notes

Verify the exact suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status via the manufacturer's official documentation, as '+T' variants typically denote lead-free and halogen-free construction. Ensure the SOT-143-4 footprint matches your PCB design constraints. Cross-reference the specific lot date code if long-term availability is critical, as this part may have limited stock or obsolescence risks.

Selection Notes

Select this component when a fixed 1.6 V threshold is required for low-voltage logic families. The open-drain output necessitates an external pull-up resistor; ensure the resistor value aligns with your system's noise immunity and speed requirements. Compare the 150 ms reset delay against your processor's startup time to guarantee adequate initialization periods. Consider the 3.3 uA quiescent current impact on total system power budget during sleep modes.

Part Context

This part belongs to the MAX6337 series of ultra-low-voltage, low-power reset circuits. The series offers various threshold voltages and output configurations to suit different application needs. The US16 variant specifically targets applications requiring precise 1.6 V supervision. The D2 suffix denotes the specific package and thermal characteristics, while the T suffix specifies reel packaging for automated assembly processes.

Replacement Considerations

Direct replacements must match the 1.6 V threshold, SOT-143-4 package, and open-drain output type. Verify that any substitute maintains the same 150 ms reset delay and 5.5 V maximum operating voltage. Check compatibility with existing pull-up resistor networks and ensure the alternative component meets the -40°C to +125°C temperature range requirements.

FAQ

What is the output configuration of the MAX6337US16D2-T?

The device features an active low, open-drain output. This requires an external pull-up resistor connected to the monitored voltage or a separate supply rail to function correctly.

Does the MAX6337US16D2-T include a manual reset input?

No, the MAX6337US16D2-T does not have a manual reset pin. Reset generation is automatic based solely on the monitored voltage level crossing the 1.6 V threshold.

What is the typical quiescent current consumption?

The typical quiescent current is 3.3 uA, making it suitable for battery-operated applications where low standby power is critical.