AP9101CK-ACTRG1

Battery Management Overview

The AP9101CK-ACTRG1 is a single-chip battery management IC designed for 1-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 supports output voltages from 2.5 V to 4.375 V. It features low current consumption of 3 µA in operation mode and utilizes an internal fixed-time circuit, eliminating the need for external capacitors. The component is housed in a SOT-25-5 surface-mount package.

Battery Management Feature Summary

• Integrates high-precision voltage detection for comprehensive battery protection including overcharge, overdischarge, and current abnormalities.
• Eliminates external timing components through built-in fixed-time circuits for simplified design.
• Maintains ultra-low power consumption with typical 3.0 µA operating current and minimal power-down current.

Battery Management Applications

• Protection circuits for 1-cell lithium-ion battery packs
• Protection circuits for 1-cell lithium-polymer battery packs
• Portable electronic devices requiring compact battery management solutions

Battery Management Procurement Notes

Verify the specific suffix 'AK' against official Diodes Incorporated documentation to confirm exact detection voltage thresholds and hysteresis settings. Confirm RoHS compliance status and ensure the SOT-25-5 package matches your PCB footprint requirements. Check for any obsolescence notices or lifecycle changes directly from the manufacturer before finalizing procurement plans.

Battery Management Selection Notes

Select this component when designing for single-cell Li-ion or Li-Po batteries requiring integrated protection without external timing capacitors. Ensure the required overcharge detection voltage falls within the supported range of 2.5 V to 4.375 V. Verify that the system's operating temperature range aligns with the specified -40°C to +85°C limits and that the SOT-25-5 package fits the available board space.

Battery Management Part Context

This part belongs to the AP9101C series of battery management ICs from Diodes Incorporated. The series focuses on providing complete protection solutions for single-cell lithium-based batteries in a minimal footprint. The AP9101C family distinguishes itself by integrating precise detection logic and fixed-time delays into a small surface-mount package, reducing overall bill of materials and assembly complexity for portable electronics.

Battery Management Replacement Considerations

Consult official Diodes Incorporated substitution guides for verified alternatives. Generic equivalents may not match the specific detection accuracy or fixed-time characteristics. Verify pin compatibility and electrical parameters before considering any cross-reference parts.