AP9101CAK-BCTRG1

Overview

The AP9101CAK-BCTRG1 is a single-cell battery protection IC manufactured by Diodes Incorporated, 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, automatically disconnecting the external MOSFET switch upon fault detection. 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. It features low current consumption, with typical operation mode current at 3.0 µA and power-down mode current at 0.01 µA. The component is housed in an SOT-26-6 surface-mount package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates high-precision voltage detection circuitry for comprehensive battery protection against abnormal electrical states
• Includes built-in fixed time delay circuits that eliminate the need for external timing capacitors
• Achieves ultra-low power consumption in both active operation and standby modes
• Supports direct connection to external MOSFET switches for charge and discharge control

Applications

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

Procurement Notes

Verify the specific suffix BCTRG1 against the official Diodes Incorporated datasheet to confirm pinout configuration and tolerance specifications. Ensure the ordering information matches the required package type and tape-and-reel quantity. Confirm RoHS compliance status and environmental declarations prior to procurement. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and availability status.

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. Consider the SOT-26 package size for space-constrained applications. Verify that the detection voltage thresholds align with the specific battery chemistry requirements. Evaluate the low quiescent current benefit for extending standby life in portable devices.

Part Context

The AP9101C series represents a family of single-chip battery protection solutions optimized for mobile and portable applications. This specific variant belongs to the AP9101C line, which emphasizes high accuracy and low power usage. The series is categorized under Power Management ICs (PMIC) within the broader portfolio of Diodes Incorporated. It serves as a critical safety component in battery management systems, ensuring cell integrity during charging and discharging cycles.

Replacement Considerations

Consult the official Diodes Incorporated replacement guide for verified substitute part numbers. Check for updated suffixes indicating package variations or thermal enhancements. Ensure functional compatibility regarding detection voltages and current ratings before substitution.