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Product Detailed Parameters
- Description：IC BATT MON MULT-CHEM 1C SOT23-3
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Function：Battery Monitor
- Battery Chemistry：Multi-Chemistry
- Number of Cells：1
- Fault Protection：-
- Interface：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
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Overview
The MAX6429CGUR+T is a low-power, single-level battery monitor featuring internal hysteresis. It operates within a supply voltage range of 1V to 5.5V and draws a typical quiescent current of 1µA. The device provides a push-pull low-battery output (LBO) that asserts when the supply voltage drops below a factory-trimmed threshold of 2.9V. A minimum timeout period of 140ms ensures supply stabilization before enabling power-converter or microprocessor activity. The component is housed in an SOT-23-3 package.
Feature Summary
- Integrates internal hysteresis for noise immunity
- Provides a push-pull low-battery output indicator
- Includes a minimum 140ms timeout period for system stabilization
Applications
- Monitoring single lithium-ion cells
- Monitoring multicell alkaline power supplies
- Monitoring NiCd/NiMH power supplies
Procurement Notes
Verify the specific suffix 'CGUR' against official Maxim Integrated documentation to confirm the exact threshold voltage and package type. Ensure compliance with RoHS standards as indicated by the '+' symbol. Confirm availability status directly with authorized distributors, as lead times may vary based on production schedules.
Selection Notes
Select this component for applications requiring precise battery level monitoring with minimal power consumption. The fixed 2.9V threshold suits systems operating at standard nominal voltages. Consider the push-pull output capability if driving loads without external pull-up resistors is required. Verify that the 140ms timeout aligns with system startup requirements.
Part Context
This part belongs to the MAX6427–MAX6438 family of low-power battery monitors. These devices are designed to indicate three battery conditions: good, weak, or empty. The family offers both factory-trimmed and user-adjustable threshold options across various packages including SOT23 and SOT143.
Replacement Considerations
Other members of the MAX6427–MAX6438 family may serve as substitutes if different thresholds or output types are acceptable. Verify pinout compatibility and electrical specifications before replacement.
