AP9101CK6-BCTRG1

Battery Management Overview

The AP9101CK6-BCTRG1 is a battery management IC from Diodes Incorporated, designed for single-cell lithium-ion and lithium-polymer rechargeable batteries. It integrates high-precision voltage detection circuits to protect against overcharge, overdischarge, overcharge current, and overdischarge current by controlling external MOSFET switches. The device operates within a supply voltage range of 1.5 V to 5.5 V and features low power consumption with a typical operating current of 3.0 µA at +25°C and 3.5 V. It supports an output voltage detection range of 2.5 V to 4.425 V and functions reliably across temperatures from -40°C to +85°C in a compact SOT-26-6 surface-mount package.

Battery Management Feature Summary

• Integrates high-precision voltage detection circuitry for comprehensive protection against overcharge, overdischarge, and abnormal current conditions.
• Controls external MOSFET switches to isolate the battery during fault events without requiring external timing capacitors.
• Maintains ultra-low power consumption in both active operation and power-down modes to preserve battery life.

Battery Management Applications

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

Battery Management Procurement Notes

Verify the specific suffix code to confirm exact detection voltage thresholds and hysteresis settings, as these parameters vary across the AP9101C series. Confirm RoHS compliance status and check for end-of-life notifications or obsolescence notices before finalizing procurement plans. Ensure the selected variant matches the required application voltage ranges and packaging preferences.

Battery Management Selection Notes

Select this component when designing protection for single-cell Li-ion or Li-Po batteries requiring minimal external components. The fixed-time circuit eliminates the need for external capacitors, simplifying the bill of materials. Ensure the external MOSFETs are rated to handle the maximum expected load currents and that the PCB layout accommodates the SOT-26-6 package dimensions for optimal thermal and electrical performance.

Battery Management Part Context

This part belongs to the AP9101C family of battery protection ICs manufactured by Diodes Incorporated. The series is engineered specifically for single-cell lithium-based battery applications, offering a complete solution for charge and discharge protection. The CK6 suffix indicates the SOT-26-6 package configuration, which provides a compact footprint suitable for space-constrained portable electronics and mobile devices.

Battery Management FAQ

Does the AP9101CK6-BCTRG1 require external capacitors for its protection timing?

No, the AP9101CK6-BCTRG1 includes a built-in fixed-time circuit, eliminating the need for external capacitors to define protection delays.

What types of faults does this IC protect against?

It protects against overcharge voltage, overdischarge voltage, overcharge current, and overdischarge current by turning off the connected external MOSFET switches.