AP9101CAK-CPTRG1

Overview

The AP9101CAK-CPTRG1 is a battery protection IC designed for single-cell lithium-ion or lithium-polymer rechargeable batteries. It provides comprehensive protection by detecting overcharge voltage, overdischarge voltage, overcharge current, and overdischarge current abnormalities, subsequently turning off an external MOSFET switch. The device features a high-precision voltage detection circuit with built-in fixed time circuits, eliminating the need for external capacitors. It operates within a supply voltage range of 1.5 V to 5.5 V and supports output voltages from 2.5 V to 4.375 V. The component is housed in a SOT-26-6 package and functions reliably across temperatures from -40°C to +85°C.

Feature Summary

• Provides multi-fault protection including overcharge, overdischarge, overcharge current, and overdischarge current detection for single-cell Li-ion and Li-polymer batteries.
• Integrates a high-accuracy voltage detection circuit with built-in fixed time delays, reducing the requirement for external components.
• Controls external MOSFET switches to isolate the battery upon detection of abnormal electrical conditions.

Applications

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

Procurement Notes

Verify current availability status as this specific part number may be subject to discontinuation notices. Confirm that the required SOT-26-6 package aligns with PCB layout constraints. Ensure compatibility with external MOSFET selection based on current handling requirements. Check for any recent product change notifications regarding manufacturing sites or material composition updates prior to finalizing procurement orders.

Selection Notes

Select this component for applications requiring a compact, single-chip solution for single-cell battery protection. It is suitable where minimizing external component count is critical due to space constraints. Consider the operating temperature range of -40°C to +85°C for environmental suitability. Verify that the detection voltage thresholds meet the specific battery chemistry requirements. This IC is appropriate for designs utilizing external N-channel MOSFETs for switching control.

Part Context

The AP9101CAK-CPTRG1 belongs to the AP9101C series of battery management ICs manufactured by Diodes Incorporated. This series is specifically engineered for single-cell lithium-based battery protection. The 'CP' suffix typically denotes the SOT-26 package variant within this family. These ICs are categorized under PMIC - Power Management ICs, focusing on charge management and safety monitoring rather than active charging regulation.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific discontinued item are not available in the provided documentation. Users should consult official manufacturer channels for obsolescence management or equivalent alternatives within the AP9101C family that match the SOT-26 package and functional specifications.