AP9101CK6-CHTRG1

Battery Management Overview

The AP9101CK6-CHTRG1 is a battery protection IC from Diodes Incorporated, designed for single-cell lithium-ion and lithium-polymer rechargeable batteries. It provides comprehensive protection by detecting overcharge voltage, overdischarge voltage, overcharge current, and overdischarge current, subsequently turning off an external MOSFET switch to isolate the battery. The device features a high-precision voltage detection circuit with fixed time delays, 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 2.5 V to 4.375 V. The component consumes only 3 µA in operation mode and 0.01 µA in power-down mode. It is housed in a compact SOT-26-6 surface-mount package.

Battery Management Feature Summary

• Integrated protection against overcharge, overdischarge, and excessive current conditions via external MOSFET control
• High-accuracy voltage detection circuit with adjustable thresholds for precise battery monitoring
• Built-in fixed time delay circuits remove the requirement for external timing capacitors
• Ultra-low power consumption with dedicated power-down mode for extended standby life

Battery Management Applications

• Single-cell lithium-ion battery pack protection
• Lithium-polymer battery management systems
• Portable electronic devices requiring low quiescent current
• Consumer electronics with limited PCB space constraints

Battery Management Procurement Notes

Verify the specific suffix CHTRG1 to confirm the exact detection voltage and hysteresis settings, as these parameters vary across the AP9101C series. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets before finalizing procurement. Ensure the selected variant matches the required overcharge and overdischarge thresholds for the target battery chemistry. Cross-reference the part number with the latest Diodes Incorporated product change notices to ensure availability and manufacturing consistency.

Battery Management Selection Notes

Select this component when designing circuits for single-cell Li-ion or Li-Po batteries that require minimal external components. The built-in timer functionality simplifies the bill of materials by removing external capacitors. Consider the SOT-26-6 package size for applications with strict spatial limitations. Evaluate the 3 µA operating current against system sleep requirements to ensure adequate battery longevity. Verify that the external MOSFET selection aligns with the IC's drive capabilities and the expected load currents.

Battery Management Part Context

The AP9101CK6-CHTRG1 belongs to the AP9101C family of battery management ICs from Diodes Incorporated. This series is engineered specifically for protecting rechargeable lithium-based cells in portable applications. The CK6 designation indicates the SOT-26-6 package configuration. The CH suffix typically denotes specific voltage detection parameters within the configurable range of the family. These ICs are categorized under PMIC - Power Management ICs and serve as critical safety components in modern battery-powered devices.

Battery Management Replacement Considerations

Check Diodes Incorporated documentation for direct pin-compatible alternatives within the AP9101C series that match the required voltage thresholds. Verify if other manufacturers offer equivalent single-cell protection ICs with similar low-current specifications and SOT-26 packaging. Ensure any substitute maintains the same fault protection logic and external MOSFET driving requirements.