AP9101CAK-AATRG1

Overview

The AP9101CAK-AATRG1 is a single-chip protection IC designed for lithium-ion and lithium-polymer rechargeable battery packs. Manufactured by Diodes Incorporated, it integrates high-precision voltage detection circuits to safeguard against overcharge, overdischarge, overcharge current, and overdischarge current conditions 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 2.4 V to 4.5 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. Packaged in an SOT-25-5 surface-mount format, it functions reliably across temperatures from -40°C to +85°C.

Feature Summary

• Integrates high-precision voltage detection for comprehensive battery protection including overcharge, overdischarge, and current abnormalities.
• Features built-in fixed time circuits that eliminate the need for external capacitors, reducing component count.
• Supports low-power operation with minimal current draw in both active and power-down modes.

Applications

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

Procurement Notes

Verify the specific suffix 'AA' 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 type compatibility and ensure the component meets RoHS compliance requirements for your target market before finalizing procurement specifications.

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 and overdischarge detection voltages align with the specific AA suffix configuration. Verify that the SOT-25-5 package fits the PCB layout constraints and that the operating temperature range meets the application environment.

Part Context

This part belongs to the AP9101C series of battery management ICs from Diodes Incorporated. The series provides a complete solution for protecting rechargeable batteries by detecting various fault conditions. Different suffixes indicate variations in detection voltages and hysteresis settings, allowing designers to tailor protection levels to specific battery chemistries and cell configurations.

Replacement Considerations

Check for other AP9101C variants with matching detection voltages if the AA suffix is unavailable. Ensure any substitute maintains the same SOT-25-5 package and functional capabilities for direct integration.