AP9101CAK-AGTRG1

Overview

The AP9101CAK-AGTRG1 is a single-chip protection IC designed for lithium-ion and lithium-polymer rechargeable battery packs. It integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, overcharge current, and overdischarge conditions, activating external MOSFET switches to isolate the battery during faults. The device 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. It features low power consumption with typical operating current of 3 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 temperatures from -40°C to +85°C.

Feature Summary

• Integrates high-precision voltage detection for monitoring overcharge and overdischarge states
• Provides comprehensive fault protection including overcurrent and short-circuit safeguards
• Eliminates need for external timing capacitors through built-in fixed time circuits
• Operates with minimal quiescent current to preserve battery life in standby modes

Applications

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

Procurement Notes

Verify the specific suffix AGTRG1 against the manufacturer's official datasheet to confirm pinout compatibility and electrical characteristics. Confirm RoHS compliance status and check for any product change notifications or end-of-life announcements prior to finalizing procurement decisions. Ensure the ordering information matches the exact package type required for your PCB layout.

Selection Notes

Select this component when designing protection circuits for single-cell Li-ion or Li-Po batteries requiring high accuracy without external timing components. Consider the SOT-25-5 package size for space-constrained applications. Evaluate the 3 µA operating current against system sleep requirements. Verify that the detection voltage ranges align with the specific battery chemistry and cell configuration being protected.

Part Context

This part belongs to the AP9101C series of battery management ICs manufactured by Diodes Incorporated. The series focuses on providing integrated protection for portable devices using lithium-based chemistries. The AP9101CAK-AGTRG1 variant specifically utilizes the SOT-25-5 package, distinguishing it from other series members that may use different form factors like SOT-26.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official cross-reference guides or contact technical support directly for verified alternative components.