AP9101CAK-AOTRG1

Overview

The AP9101CAK-AOTRG1 is a single-chip protection IC designed for one-cell lithium-ion or lithium-polymer rechargeable battery packs. Manufactured by Diodes Incorporated, it integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, and current abnormalities. The device controls external MOSFET switches to isolate the battery during fault conditions. It operates within a supply voltage range of 1.5 V to 5.5 V and supports output voltages from 2.5 V to 4.425 V. Packaged in an SOT-25-5 surface-mount format, it functions reliably between -40°C and +85°C.

Feature Summary

• Integrates high-precision voltage detection for overcharge and overdischarge monitoring
• Provides comprehensive protection against overcurrent and abnormal battery conditions
• Eliminates need for external timing capacitors via built-in fixed time circuits
• Supports low-power operation with minimal quiescent current consumption

Applications

• Protection circuits for single-cell lithium-ion battery packs
• Safety management for lithium-polymer rechargeable batteries
• Portable electronic devices requiring integrated battery safeguards
• Consumer electronics with strict space constraints for power management

Procurement Notes

Verify the specific suffix 'AO' against the manufacturer's official datasheet to confirm exact detection voltage thresholds and hysteresis settings. Ensure the SOT-25-5 package compatibility matches your PCB footprint. Confirm RoHS compliance status through the latest product documentation before finalizing procurement specifications.

Selection Notes

Select this component when designing compact battery protection systems for single-cell Li-ion or Li-Po applications. It is suitable for designs requiring reduced external component count due to internal timing circuits. Consider the operating temperature range and supply voltage requirements to ensure compatibility with the target system environment.

Part Context

This part belongs to the AP9101C series of battery management ICs from Diodes Incorporated. The series focuses on providing complete protection solutions for portable devices. Variants within the series differ primarily in detection voltage parameters and package types, such as SOT-25 or SOT-26, allowing customization for specific battery chemistries and form factors.

Replacement Considerations

Check for other AP9101C variants with compatible packages like SOT-25-5. Verify that alternative parts support similar detection voltage ranges for lithium-ion chemistry. Ensure substitute components maintain comparable quiescent current levels to preserve battery life in standby modes.