AP9101CAK-CDTRG1

Overview

The AP9101CAK-CDTRG1 is a single-cell lithium-ion or lithium-polymer battery protection IC manufactured by Diodes Incorporated. It integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, and current abnormalities, automatically disconnecting the external MOSFET switch when faults occur. 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. Designed for low power consumption, it features a typical operating current of 3 µA at +25°C and a power-down mode current of 0.01 µA. The component is housed in an SOT-25-5 surface-mount package and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates high-precision voltage detection for overcharge, overdischarge, and current fault monitoring
• Eliminates need for external timing capacitors through built-in fixed time circuits
• Achieves ultra-low power consumption with minimal standby current draw

Applications

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

Procurement Notes

Verify the specific suffix CD against official Diodes Incorporated documentation to confirm exact detection voltage thresholds and hysteresis settings. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the SOT-25-5 package dimensions match your PCB footprint requirements before finalizing orders.

Selection Notes

Select this component for applications requiring precise single-cell battery protection without complex external timing components. Consider the low quiescent current for battery-powered systems where standby efficiency is critical. Verify that the available detection voltage steps align with the specific cell chemistry requirements of the target application.

Part Context

This part belongs to the AP9101C series of battery management integrated circuits designed specifically for single-cell Li+ battery packs. The series provides a complete solution for protecting rechargeable batteries by detecting various abnormal conditions. The AP9101CAK-CDTRG1 variant utilizes the SOT-25-5 package, offering a compact form factor suitable for space-constrained portable electronics and mobile devices.

Replacement Considerations

Consult official manufacturer substitution lists for verified alternatives. Cross-reference pinout compatibility and electrical specifications carefully when considering other battery protection ICs.