AP9101CAK-ATTRG1

Overview

The AP9101CAK-ATTRG1 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. The device controls external MOSFET switches to isolate the battery during fault states. Operating within a supply voltage range of 1.5 V to 5.5 V, it supports output voltages from 2.8 V to 4.4 V. 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 thresholds
• Provides comprehensive protection against abnormal current conditions including overcharge and overdischarge currents
• Features built-in fixed time circuitry to eliminate the need for external timing capacitors
• Controls external MOSFET switches to disconnect the battery pack during detected fault events

Applications

• Protection circuits for single-cell lithium-ion battery packs
• Safety management systems for lithium-polymer rechargeable batteries
• Portable electronic devices requiring integrated cell protection
• Consumer electronics utilizing compact surface-mount battery management solutions

Procurement Notes

Verify the specific suffix attributes with Diodes Incorporated official documentation before procurement. Ensure the selected variant matches the required detection voltage steps and hysteresis parameters. Confirm package availability and lead times directly with authorized distributors. Check for any recent product change notices or end-of-life announcements affecting this specific part number.

Selection Notes

Select this component when designing protection circuits for single-cell Li-ion or Li-Po batteries requiring minimal external components. The integrated timing function reduces bill of materials complexity compared to discrete solutions. Verify that the SOT-25-5 package fits the board space constraints. Ensure the operating temperature range meets the environmental requirements of the target application.

Part Context

This part belongs to the AP9101C series of battery management ICs from Diodes Incorporated. The series focuses on providing robust protection for portable applications through integrated sensing and control capabilities. The AP9101CAK-ATTRG1 represents a specific configuration within this family, tailored for standard single-cell protection duties.

Replacement Considerations

Consult official Diodes Incorporated substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications carefully. Generic replacements may lack the specific accuracy or timing characteristics of the original component.