MAX6437UT+T

Overview

The MAX6437UT+T is a low-power, dual-level battery monitor from the MAX6439–MAX6442 family. It features two factory-trimmed low-battery output indicators and an integrated microprocessor supervisor with active-low reset. The device operates within a supply voltage range of 1.5V to 5.5V and consumes ultra-low quiescent current. It provides manual reset functionality via a push-button input without requiring external components. The unit is housed in a compact SOT-23-6 package.

Feature Summary

• Dual low-battery output indicators for signaling battery conditions
• Integrated microprocessor supervisor with active-low reset output
• Manual reset function available via push-button input
• No external components required for operation

Applications

• Monitoring single lithium-ion cells
• Monitoring multicell alkaline power supplies
• Monitoring NiCd/NiMH power supplies
• Low-power system operation indication

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm that the '+T' designation ensures compliance with lead-free manufacturing standards as per manufacturer specifications. Ensure the selected variant matches the required threshold voltages for the target application. Cross-reference the full part number with official distributor catalogs to confirm availability and authenticity before procurement.

Selection Notes

Select this component when dual-stage battery monitoring is required alongside processor reset supervision. The fixed threshold voltages are factory-trimmed; verify they align with the specific battery chemistry and system requirements. Consider the SOT-23-6 package size for space-constrained designs. Ensure the operating temperature range meets the environmental conditions of the intended deployment scenario.

Part Context

This device belongs to the MAX6439–MAX6442 family of ultra-low-power battery monitors. These parts combine battery monitoring with microprocessor reset functions in a single small footprint. The series is designed for portable electronics where power conservation and reliable system shutdown are critical. The MAX6437UT+T specifically offers dual low-battery outputs for flexible system state management.

Replacement Considerations

Compatible substitutes within the same family include MAX6439UT+T, MAX6440UT+T, MAX6441UT+T, and MAX6442UT+T. These alternatives share similar pinouts and functionalities but differ in factory-trimmed threshold voltages. Verify that the replacement part's specific voltage thresholds match the design requirements before substitution.