AP9101CAK-BETRG1

Overview

The AP9101CAK-BETRG1 is a single-chip protection IC designed 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, 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 2.4 V to 4.5 V. It features low power consumption with typical operating current of 3 µA and standby current of 0.01 µA. The component is housed in an SOT-25-5 surface-mount package and functions reliably across temperatures from -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 abnormal voltage states by controlling external MOSFETs.
• Features ultra-low current consumption in both operation and power-down modes to preserve battery life.

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 code 'BE' against the manufacturer's official 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 Diodes Incorporated or authorized distributors before finalizing procurement specifications.

Selection Notes

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

Part Context

The AP9101CAK-BETRG1 belongs to the AP9101C family of battery management ICs manufactured by Diodes Incorporated. This series is engineered specifically for single-cell lithium-based battery applications, offering a compact solution for protecting cells from electrical faults. The part utilizes standard surface-mount packaging suitable for automated assembly processes in consumer electronics manufacturing.

FAQ

Does the AP9101CAK-BETRG1 require external capacitors for timing?

No, the device includes a built-in fixed time circuit, eliminating the need for external capacitors for protection timing delays.

What is the typical power-down current consumption?

The typical power-down mode current consumption is 0.01 µA at 25°C.