AP9101CAK-CITRG1

Overview

The AP9101CAK-CITRG1 is a single-chip protection IC designed for one-cell lithium-ion or lithium-polymer rechargeable battery packs. Manufactured by Diodes Incorporated, it integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, and current abnormalities. The device controls external MOSFET switches to isolate the battery during fault conditions. It operates within a supply voltage range of 1.5 V to 5.5 V and supports output voltages from 2.4 V to 4.5 V. The component functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates high-accuracy voltage detection for overcharge and overdischarge protection without requiring external timing capacitors.
• Provides comprehensive fault protection against overcurrent and overvoltage conditions by controlling external MOSFETs.
• Features ultra-low power consumption in both operation and power-down modes to preserve battery life.

Applications

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

Procurement Notes

Verify the specific suffix 'CIT' against the official Diodes Incorporated datasheet to confirm exact detection voltage thresholds and package variations. Confirm RoHS compliance status and ensure the source document matches the manufacturer's current part designation. Cross-reference ordering information with authorized distributors to validate availability and authenticity.

Selection Notes

Select this component for applications requiring a compact, single-chip solution for single-cell Li-ion or Li-Po battery protection. Consider the SOT-26 package size and low quiescent current when designing space-constrained portable electronics. Ensure the external MOSFET selection aligns with the IC's drive capabilities and the required current handling specifications.

Part Context

The AP9101C series represents a family of battery management ICs from Diodes Incorporated. These components are categorized under PMIC (Power Management Integrated Circuits) specifically for charge management. The series is designed to simplify battery protection designs by minimizing external component count while maintaining high precision and reliability for consumer electronics.

Replacement Considerations

Consult the official datasheet for confirmed substitute part numbers within the AP9101C family. Verify pin compatibility and electrical parameter equivalence before substitution. Generic equivalents may not match the specific detection accuracy or package requirements.