AP9101CAK-BRTRG1

Overview

The AP9101CAK-BRTRG1 is a single-chip protection IC developed by Diodes Incorporated for lithium-ion and lithium-polymer rechargeable battery packs. It integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, overcharge current, and overdischarge conditions, automatically turning off external MOSFET switches during abnormalities. The device features a built-in fixed time circuit that eliminates the need for external capacitors, simplifying design. 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. Packaged in an SOT-25-5 surface-mount format, it ensures reliable battery management with low power consumption.

Feature Summary

• Integrates high-precision voltage detection for overcharge and overdischarge protection
• Includes built-in fixed time circuitry to reduce external component count
• Supports operation with lithium-ion and lithium-polymer battery chemistries

Applications

• Single-cell lithium-ion battery pack protection
• Lithium-polymer rechargeable battery management systems
• Portable electronic devices requiring compact battery safety solutions

Procurement Notes

Verify the specific suffix BR against official Diodes Incorporated documentation to confirm exact detection voltage thresholds and hysteresis values. Confirm package type and RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Ensure the part number matches the required application specifications precisely.

Selection Notes

Select this component when designing for single-cell Li-ion or Li-Po batteries requiring integrated protection without external timing capacitors. Consider the SOT-25-5 package for space-constrained applications. Verify that the operating temperature range and voltage detection accuracy meet the specific system requirements.

Part Context

This part belongs to the AP9101C series of battery management ICs from Diodes Incorporated. The series is designed specifically for protecting single-cell lithium-based batteries. Variations in the suffix typically denote different detection voltage settings or packaging options within the same functional family.

FAQ

Does the AP9101CAK-BRTRG1 require external capacitors for its timing functions?

No, the AP9101CAK-BRTRG1 includes a built-in fixed time circuit, which eliminates the need for external capacitors for protection timing.

What types of batteries are compatible with this IC?

The AP9101CAK-BRTRG1 is designed for use with lithium-ion and lithium-polymer rechargeable batteries.