AP9101CAK6-AITRG1

Battery Management Overview

The AP9101CAK6-AITRG1 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 features low power consumption, drawing approximately 3.0 µA in operation mode at +25°C. It utilizes an internal fixed-time circuit, eliminating the need for external capacitors for timing functions. The component is housed in a surface-mount SOT-26 package and supports an operating temperature range from -40°C to +85°C.

Battery Management Feature Summary

• Integrates high-accuracy voltage detection for overcharge and overdischarge protection with built-in hysteresis control.
• Features a built-in fixed-time circuit that removes the requirement for external timing capacitors.
• Provides comprehensive fault protection by detecting abnormal currents and voltages to trigger external MOSFET switching.
• Operates with ultra-low current consumption in both active and power-down modes.

Battery Management 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

Battery Management Procurement Notes

Verify the specific suffix code against official Diodes Incorporated documentation to confirm exact detection voltage thresholds and package variants. Confirm RoHS compliance status and REACH registration details prior to integration. Ensure the selected variant matches the required overcharge and overdischarge detection parameters for the target battery chemistry. Cross-reference ordering information with authorized distributors to avoid obsolete or non-compliant stock.

Battery Management Selection Notes

Select this component when designing protection systems for single-cell Li-ion or Li-Po batteries requiring minimal external components. The integrated fixed-time circuit simplifies PCB layout by removing timing capacitors. Ensure the application voltage stays within the 1.5 V to 5.5 V operating range. Verify that the SOT-26 package fits the thermal and spatial constraints of the design. Consider the low quiescent current for battery-powered applications where standby efficiency is critical.

Battery Management Part Context

The AP9101C series represents a family of battery management ICs focused on single-cell protection. This specific part belongs to the AP9101C line, which emphasizes high precision and low power usage. It serves as a specialized solution within the broader PMIC category, targeting safety-critical applications in portable electronics where reliability and component count reduction are prioritized.

Battery Management Replacement Considerations

Check for direct substitutes within the AP9101C series with different suffix codes that may offer adjusted detection voltages. Verify pin compatibility and package dimensions before substituting. Ensure any replacement maintains the same low-power characteristics and protection functionalities required by the original design specifications.

Battery Management FAQ

Does the AP9101CAK6-AITRG1 require external capacitors for its protection timing?

No, the device includes a built-in fixed-time circuit, which eliminates the need for external capacitors for timing functions.

What types of battery chemistries is this IC designed to protect?

It is specifically developed for lithium-ion and lithium-polymer rechargeable battery packs.

How does the IC handle overcurrent conditions?

It detects overcharge and overdischarge currents and turns off the external MOSFET switch to protect the battery from abnormalities.