AP9101CAK-AKTRG1

Overview

The AP9101CAK-AKTRG1 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 abnormalities, controlling external MOSFET switches for safety. The device operates within a supply voltage range of 1.5 V to 5.5 V and supports output voltages from 2.4 V to 4.5 V. It features low power consumption with typical operation current of 3 µA and standby current of 0.01 µA. 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.

Feature Summary

• Integrates high-accuracy voltage detection for overcharge and overdischarge protection without requiring external timing capacitors
• Provides comprehensive fault protection against overcurrent and overvoltage conditions by controlling external MOSFETs
• Features ultra-low power consumption modes including standard operation and deep power-down states

Applications

• Protection circuits for single-cell lithium-ion rechargeable battery packs
• Safety management for lithium-polymer battery systems in portable electronics
• Battery management units requiring minimal external component count

Procurement Notes

Verify the specific suffix AKTRG1 against official Diodes Incorporated documentation to confirm exact detection thresholds and package variations. Confirm availability status as some variants in this series may be subject to discontinuation notices. Ensure compatibility with required operating temperatures and voltage ranges for the target application before finalizing procurement.

Selection Notes

Select this component when designing compact single-cell battery protection systems that demand high precision and low quiescent current. The integrated fixed-time circuit reduces bill-of-materials complexity compared to solutions requiring external capacitors. Ensure the design accommodates the SOT-25-5 footprint and validates thermal performance within the specified operating temperature range.

Part Context

This part belongs to the AP9101C series of battery management ICs designed specifically for single-cell Li+ battery packs. The series emphasizes simplified design through built-in timing circuits and high-accuracy detection. It serves as a critical safety component in portable devices, replacing discrete protection solutions with a consolidated integrated circuit approach.

Replacement Considerations

Consult official manufacturer substitution guides for verified alternatives. Generic equivalents may not match the precise detection accuracy or low-power characteristics of the original component.