AP9101CAK-AFTRG1

Overview

The AP9101CAK-AFTRG1 is a single-cell lithium-ion or lithium polymer battery protection IC manufactured by Diodes Incorporated. Designed for high-precision voltage detection, it safeguards batteries against overcharge, overdischarge, and abnormal 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 typical operating current of 3 µA and standby current of 0.01 µA. Packaged in SOT-25-5 format, it functions reliably across temperatures from -40°C to +85°C.

Feature Summary

• Provides comprehensive protection against overcharge, overdischarge, overcharge current, and overdischarge current abnormalities.
• Integrates a fixed time circuit that eliminates the need for external capacitors, reducing component count.
• Offers high-accuracy voltage detection with adjustable hysteresis ranges for precise threshold management.

Applications

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

Procurement Notes

Verify the specific suffix AFTRG1 against official Diodes Incorporated documentation to confirm exact electrical parameters and package type. Ensure compatibility with target PCB footprint and thermal requirements. Confirm availability status as distribution channels may list obsolete or limited stock items. Cross-reference RoHS compliance data if required for regulatory adherence. Validate that the selected variant matches the intended voltage detection thresholds for the specific battery chemistry.

Selection Notes

Select this component when designing protection circuits for single-cell Li-ion or Li-Po batteries requiring minimal external components. The integrated timing function simplifies layout compared to solutions needing external capacitors. Consider the SOT-25-5 package size for space-constrained applications. Evaluate the 3 µA operating current for battery life optimization in standby modes. Ensure the detection voltage range aligns with the specific cell's maximum charge and minimum discharge limits.

Part Context

The AP9101C series represents a dedicated solution for single-cell battery protection within Diodes Incorporated's PMIC portfolio. It addresses the need for reliable safety mechanisms in portable electronics without complex external circuitry. The family distinguishes itself through built-in timing functions and high-precision detection capabilities, catering to manufacturers prioritizing compactness and accuracy in battery management designs.

FAQ

Does the AP9101CAK-AFTRG1 require external capacitors for its timing functions?

No, the device includes a built-in fixed time circuit, eliminating the necessity for external capacitors in the protection configuration.

What types of battery abnormalities does this IC protect against?

It protects against overcharge voltage, overdischarge voltage, overcharge current, and overdischarge current conditions.