AP9101CAK-AETRG1

Overview

The AP9101CAK-AETRG1 is a single-cell lithium-ion or lithium polymer battery protection IC manufactured by Diodes Incorporated. It detects overcharge voltage, overdischarge voltage, overcharge current, and overdischarge current to control external MOSFET switches. The device features a high-precision voltage detection circuit with built-in fixed-time circuits, eliminating the need for external capacitors. It 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. Typical quiescent current is 3 µA in operation mode. The component is housed in an SOT-25-5 surface-mount package.

Feature Summary

• Provides comprehensive protection against overcharge, overdischarge, overcharge current, and overdischarge current conditions.
• Integrates a high-precision voltage detection circuit with adjustable thresholds for both charge and discharge states.
• Includes built-in fixed-time delay circuits that remove the requirement for external timing capacitors.
• Designed for low power consumption with minimal standby current draw during active monitoring.

Applications

• Protection circuits for single-cell lithium-ion rechargeable battery packs
• Safety management systems for lithium-polymer battery modules
• Portable electronic devices requiring integrated cell protection

Procurement Notes

Verify the specific suffix 'AE' against the official Diodes Incorporated datasheet to confirm exact detection voltage steps and hysteresis values. Confirm package type matches SOT-25-5 requirements. Check RoHS compliance status and ensure the component is not obsolete before finalizing procurement specifications.

Selection Notes

Select this component when designing compact single-cell battery protection systems that require high accuracy without external timing components. Ensure the application voltage range aligns with the 1.5 V to 5.5 V operating specification. Verify that the required detection thresholds fall within the supported ranges for the AE suffix variant.

Part Context

The AP9101C series represents a family of single-chip solutions for lithium-ion and lithium-polymer battery protection. These ICs are designed to replace discrete protection circuits by integrating detection logic and control functions into a small surface-mount package. The series emphasizes simplicity and reliability for consumer electronics applications.

FAQ

Does the AP9101CAK-AETRG1 require external capacitors for its protection timing?

No, the device includes built-in fixed-time circuits, so external capacitors are unnecessary for setting protection delays.

What types of battery chemistries does this IC support?

It is designed for use with lithium-ion and lithium-polymer rechargeable batteries.