AP9101CK-AFTRG1

Battery Management Overview

The AP9101CK-AFTRG1 is a battery management IC from Diodes Incorporated, designed for single-cell lithium-ion and lithium-polymer rechargeable batteries. It integrates high-precision voltage detection circuits to protect against overcharge, overdischarge, overcharge current, and overdischarge conditions by controlling external MOSFET switches. The device operates within a supply voltage range of 1.5 V to 5.5 V and supports output voltages between 2.8 V and 4.4 V. It features low current consumption of 3.0 µA in operation mode and utilizes an SOT-25-5 surface-mount package.

Battery Management Feature Summary

• Provides comprehensive protection for lithium-ion and lithium-polymer cells by detecting abnormal voltage and current states.
• Integrates a fixed-time circuit that eliminates the need for external capacitors, reducing component count.
• Features high-accuracy voltage detection with adjustable hysteresis ranges for precise monitoring.

Battery Management Applications

• Protection circuits for single-cell lithium-ion battery packs
• Safety management for lithium-polymer rechargeable batteries
• Portable electronic devices requiring compact battery protection

Battery Management Procurement Notes

Verify the specific suffix AFTRG1 against official Diodes Incorporated documentation to confirm pinout compatibility and electrical tolerances. Ensure the sourcing channel provides valid RoHS compliance certificates and original manufacturer traceability. Cross-reference the part number with the latest datasheet revision to avoid obsolete or counterfeit components during procurement.

Battery Management Selection Notes

Select this component when designing protection circuits for single-cell Li-ion or Li-Po batteries requiring minimal external components. The integrated timing function simplifies layout compared to solutions needing external capacitors. Ensure the application voltage stays within the 1.5 V to 5.5 V operating range and verify that the SOT-25-5 package fits the thermal and spatial constraints of the target design.

Battery Management Part Context

This part belongs to the AP9101C series of battery management ICs manufactured by Diodes Incorporated. The series focuses on providing reliable protection for portable electronics through integrated sensing and control capabilities. The CK suffix typically denotes specific tolerance or packaging variations within the broader product family.

Battery Management Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative parts by comparing detection voltages, current consumption, and package dimensions against the official AP9101C datasheet specifications.