AP9101CK-AATRG1

Battery Management Overview

The AP9101CK-AATRG1 is a single-cell lithium-ion or lithium-polymer battery protection IC manufactured by Diodes Incorporated. It integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, and current conditions, automatically disconnecting the external MOSFET switch during faults. The device operates within a supply voltage range of 1.5 V to 5.5 V and supports output voltages from 2.8 V to 4.4 V. It features low power consumption with a typical operating current of 3.0 µA at +25°C and 0.01 µA in power-down mode. The component is housed in an SOT-25-5 surface-mount package and functions reliably across a temperature range of -40°C to +85°C.

Battery Management Feature Summary

• Integrates high-precision voltage detection for overcharge, overdischarge, and overcurrent protection
• Includes built-in fixed time circuit eliminating the need for external timing capacitors
• Supports low-power operation with minimal current draw in both active and power-down modes

Battery Management Applications

• Single-cell lithium-ion battery pack protection
• Lithium-polymer rechargeable battery management systems
• Portable electronic devices requiring compact battery safety solutions

Battery Management Procurement Notes

Verify the specific suffix 'AA' against the official Diodes Incorporated datasheet to confirm exact detection voltage thresholds and hysteresis values. Ensure the SOT-25-5 package matches the target PCB footprint. Confirm RoHS compliance status and check for any recent product change notices affecting manufacturing sites or materials before finalizing procurement.

Battery Management Selection Notes

Select this component for applications requiring a simplified bill of materials due to the integrated timing function. The SOT-25-5 package offers space efficiency for portable designs. Ensure the required overcharge and overdischarge detection voltages align with the specific battery cell specifications supported by the AA suffix variant.

Battery Management Part Context

This part belongs to the AP9101C series of battery management ICs designed specifically for single-cell Li+ battery packs. The series provides a complete protection solution by detecting abnormal conditions and controlling external switches. The AP9101CK-AATRG1 represents a specific configuration within this family, tailored for particular voltage detection parameters.

Battery Management Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing design constraints if considering alternative battery protection ICs.