AP9101CAK-CGTRG1

Overview

The AP9101CAK-CGTRG1 is a battery management integrated circuit 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 to turn off 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 4.425 V. It features low power consumption with a typical operating current of 3 µA at +25°C and 0.01 µA in power-down mode. The component functions reliably across an ambient temperature range of -40°C to +85°C and is housed in a compact SOT-25-5 surface-mount package.

Feature Summary

• High-precision voltage detection circuit for accurate monitoring of battery status
• Built-in fixed time circuit eliminates the need for external capacitors
• Low current consumption ensures extended battery life during operation
• Integrated protection against overcharge, overdischarge, and abnormal currents

Applications

• Single-cell lithium-ion battery pack protection
• Lithium-polymer battery management systems
• Portable electronic devices requiring compact power solutions
• Consumer electronics with limited space constraints

Procurement Notes

Verify the specific suffix CG against official Diodes Incorporated documentation to confirm exact electrical parameters and pinout compatibility. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer. Ensure the SOT-25-5 package matches your PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits for single-cell Li-ion or Li-Po batteries requiring high-accuracy voltage detection without external timing components. Consider the SOT-25-5 package size for space-constrained applications. Evaluate the 3 µA operating current against system power budgets. Verify that the supported output voltage range aligns with downstream load requirements.

Part Context

This part belongs to the AP9101C series of battery management ICs from Diodes Incorporated. The series is engineered specifically for protecting single-cell lithium-based batteries. Variants within the family share core protection functionalities but differ in packaging options such as SOT-25 and SOT-26, allowing designers to choose based on board layout constraints.

Replacement Considerations

Check for other AP9101C variants with different suffixes if package or parameter adjustments are needed. No direct public substitute part numbers are confirmed in the provided data.