AP9101CAK-AMTRG1

Overview

The AP9101CAK-AMTRG1 is a single-cell lithium-ion and lithium-polymer battery protection IC manufactured by Diodes Incorporated. It integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, overcharge current, and overdischarge conditions, activating external MOSFET switches for protection. The device operates within a supply voltage range of 1.5 V to 5.5 V and supports output voltages from 2.5 V to 4.425 V. It features low power consumption with typical operation current of 3.0 µA at 3.5 V and 0.01 µA in power-down mode. 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 active operation and power-down modes to preserve battery life.

Applications

• Protection circuits for single-cell lithium-ion rechargeable battery packs
• Safety management for lithium-polymer battery systems
• Portable electronic devices requiring integrated battery monitoring

Procurement Notes

Verify the specific suffix AMTRG1 against official Diodes Incorporated documentation to confirm pinout compatibility and electrical specifications. Confirm RoHS compliance status and check for any product change notices or end-of-life announcements prior to finalizing procurement plans.

Selection Notes

Select this component for designs requiring a compact, single-chip solution for 1-cell Li-ion or Li-Po batteries. Ensure the application voltage range aligns with the 2.5 V to 4.425 V output specification. Verify that the SOT-25-5 package fits the PCB layout constraints and that the thermal performance meets the operating temperature requirements.

Part Context

This part belongs to the AP9101C series of battery management ICs designed specifically for single-cell applications. It serves as a dedicated charge management and protection unit, replacing discrete component solutions. The series is categorized under PMIC (Power Management Integrated Circuits) within the broader portfolio of Diodes Incorporated.

Replacement Considerations

Consult official substitution guides for compatible alternatives such as other variants within the AP9101C family. Verify pin-to-pin compatibility and parameter alignment before considering cross-references.

FAQ

Does the AP9101CAK-AMTRG1 require external capacitors for its internal timing circuits?

No, the AP9101CAK-AMTRG1 includes a built-in fixed time circuit, eliminating the need for external capacitors for standard protection timing functions.

What is the typical current consumption in power-down mode?

The typical current consumption in power-down mode is 0.01 µA at 3.5 V.