AP9101CAK-AITRG1

Overview

The AP9101CAK-AITRG1 is a single-chip battery protection IC designed for lithium-ion and lithium-polymer rechargeable batteries. It integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, overcharge current, and overdischarge conditions, controlling external MOSFET switches for protection. 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. Key electrical parameters include a typical operating current of 3 µA and a power dissipation rating of 250 mW. It functions reliably across an ambient temperature range of -40°C to +85°C.

Feature Summary

• Integrates high-precision voltage detection for monitoring overcharge and overdischarge states
• Provides comprehensive fault protection against overcurrent and overvoltage conditions
• Features low current consumption with dedicated operation and power-down modes
• Supports standard surface-mount installation in compact SOT-25-5 packages

Applications

• Protection circuits for single-cell lithium-ion battery packs
• Safety management for lithium-polymer rechargeable battery systems
• Portable electronic devices requiring integrated battery protection
• Consumer electronics utilizing small form-factor power sources

Procurement Notes

Verify the specific suffix AITRG1 against the manufacturer's official datasheet to confirm pinout compatibility and electrical tolerances. Confirm RoHS compliance status through the latest product trade compliance documentation. Ensure the SOT-25-5 package dimensions match your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when designing protection circuits for single-cell Li-ion or Li-Po batteries requiring minimal external components. The built-in fixed time circuit eliminates the need for external capacitors, simplifying the bill of materials. Consider the 3 µA typical operating current for applications prioritizing energy efficiency in portable devices.

Part Context

This part belongs to the AP9101C series of battery management ICs manufactured by Diodes Incorporated. The series focuses on providing complete protection solutions for single-cell lithium-based batteries. The AP9101CAK-AITRG1 variant specifically utilizes the SOT-25-5 package, offering a compact solution for space-constrained designs compared to larger package options available in the same family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify functional equivalence with other AP9101C variants only if datasheet specifications for voltage ranges, package types, and protection thresholds align exactly.