MAX6427DHUR+T

Overview

The MAX6427DHUR+T is a low-power, single-level battery monitor manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 1.6 V to 5.5 V and features an SOT-23-3 surface-mount package. The device monitors power-supply voltages and asserts a low-battery output when the voltage drops below a specified threshold. It deasserts the output after the voltage rises above a high threshold and a minimum timeout period expires. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides single low-battery output indication for monitoring battery conditions
• Includes internal hysteresis to prevent output oscillation during voltage transitions
• Features a minimum timeout period to ensure supply voltage stabilization before enabling system activity

Applications

• Monitoring single lithium-ion (Li+) cells
• Monitoring multicell alkaline power supplies
• Monitoring NiCd or NiMH power supplies

Procurement Notes

Verify the specific suffix DHUR against official manufacturer documentation to confirm pinout, threshold voltage, and package variations. Cross-reference with the latest datasheet revision to ensure compatibility with current design requirements. Confirm RoHS compliance status through authorized channels prior to integration.

Selection Notes

Select this component for applications requiring simple, low-power battery level detection. Ensure the required threshold voltage aligns with the specific part number variant available in the MAX6427 series. Consider the SOT-23-3 package size constraints and the operational temperature range limits for the intended environment.

Part Context

The MAX6427DHUR+T belongs to the MAX6427–MAX6438 family of single/dual-level battery monitors. This family provides low-battery output indicators to signal three battery conditions: good, weak, or empty. These devices are designed for portable electronics where power conservation and reliable battery management are critical.

Replacement Considerations

Other members of the MAX6427–MAX6438 family may serve as substitutes depending on the required threshold voltage and whether single or dual-level monitoring is needed. Verify that any replacement part matches the SOT-23-3 package and electrical specifications.