AP9101CK-AOTRG1

Battery Management Overview

The AP9101CK-AOTRG1 is a single-chip protection IC for 1-cell lithium-ion or lithium polymer battery packs, manufactured by Diodes Incorporated. It integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, and current abnormalities, controlling external MOSFET switches for safety. The device operates within a supply voltage range of 1.5 V to 5.5 V and supports output voltages from 2.8 V to 4.4 V. It features low power consumption with a typical operating current of 3.0 µA at +25°C and 0.01 µA in power-down mode. Packaged in an SOT-25-5 surface-mount format, it functions reliably across temperatures from -40°C to +85°C.

Battery Management Feature Summary

• Integrates high-precision voltage detection for overcharge, overdischarge, and current protection without requiring external timing capacitors.
• Controls external MOSFET switches to isolate the battery during fault conditions such as overcurrent or abnormal voltage levels.
• Offers ultra-low power consumption with dedicated power-down mode functionality to extend standby battery life.

Battery Management 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

Battery Management Procurement Notes

Verify the specific suffix 'AOT' against the official Diodes Incorporated datasheet to confirm exact detection voltage thresholds and hysteresis values, as these parameters vary significantly across the AP9101C series. Confirm package availability and RoHS compliance status directly with the manufacturer or authorized distributors before finalizing procurement specifications.

Battery Management Selection Notes

Select this component when designing protection for single-cell Li-ion or Li-Po batteries requiring minimal external components. Ensure the required overcharge and overdischarge detection thresholds align with the specific 'AO' variant settings. Verify that the SOT-25-5 package fits the PCB layout constraints and that the operating temperature range meets the application environment requirements.

Battery Management Part Context

This part belongs to the AP9101C series of battery management ICs designed for single-cell applications. It serves as a specialized solution for protecting lithium-based chemistries by integrating detection logic and control outputs into a compact footprint, reducing bill-of-materials complexity compared to discrete protection designs.

Battery Management Replacement Considerations

Check for other AP9101C variants with matching detection voltages if direct substitution is needed. Ensure any alternative maintains the SOT-25-5 package and compatible electrical characteristics for seamless integration.