AP9101CAK-CBTRG1

Overview

The AP9101CAK-CBTRG1 is a single-cell 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, activating an external MOSFET switch 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 4.425 V. It features low power consumption with typical operation current of 3.0 µA at 3.5 V and standby current of 0.01 µA. The component is housed in a SOT-25-5 surface-mount package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates high-precision voltage detection for comprehensive battery protection against abnormal electrical conditions
• Includes built-in fixed time circuitry to eliminate the need for external timing capacitors
• Achieves ultra-low power consumption suitable for portable electronic applications

Applications

• Protection circuits for single-cell lithium-ion battery packs
• Safety management for lithium-polymer rechargeable batteries
• Portable consumer electronics requiring compact battery protection

Procurement Notes

Verify the specific suffix CBTRG1 against official Diodes Incorporated documentation to confirm exact pinout configuration and factory specifications. Ensure compatibility with the target PCB footprint, as package variations exist within the AP9101 series. Confirm availability status through authorized channels, as manufacturing updates or lifecycle changes may affect current production status.

Selection Notes

Select this component when designing protection systems for single-cell Li-ion or Li-Po batteries requiring minimal external components. The integrated timing function simplifies bill of materials by removing external capacitors. Verify that the required detection voltages and currents align with the specific battery chemistry and application safety standards before finalizing the design.

Part Context

The AP9101C belongs to a family of single-chip solutions developed specifically for protecting lithium-based battery cells. These ICs are categorized under PMIC battery management products. The AP9101CAK-CBTRG1 variant utilizes the SOT-25-5 package, distinguishing it from other series members that may use SOT-26 packages, while maintaining similar core protection functionalities.

Replacement Considerations

Cross-reference alternative part numbers within the AP9101C series, such as AP9101CAK6 variants, ensuring package compatibility and identical detection parameters. Verify that any substitute maintains the same SOT-25-5 form factor and electrical characteristics to ensure seamless integration without redesign.