AP9101CAK6-CATRG1

Battery Management Overview

The AP9101CAK6-CATRG1 is a single-chip protection IC designed for one-cell lithium-ion or lithium-polymer rechargeable battery packs. Manufactured by Diodes Incorporated, it integrates high-precision voltage detection circuits to safeguard 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 2.3 V to 4.275 V. It features low power consumption with a typical operating current of 3 µA at +25°C and 3.5 V. The component is housed in an SOT-26-6 surface-mount package and functions reliably across a temperature range of -40°C to +85°C.

Battery Management Feature Summary

• Integrates high-precision voltage detection for overcharge and overdischarge protection without requiring external timing capacitors due to built-in fixed time circuits.
• Provides comprehensive fault protection including overcharge current, overdischarge current, and overvoltage detection by turning off external MOSFET switches.
• Supports low-power operation with minimal current draw in both active mode and power-down mode, enhancing battery life in portable applications.

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 CATRG1 to confirm the exact output voltage range and packaging configuration, as variations exist within the AP9101C series. Confirm availability status, as some variants are marked as obsolete or end-of-life. Ensure compatibility with the intended external MOSFET switching requirements and validate that the SOT-26-6 package fits the target PCB layout constraints before finalizing procurement.

Battery Management Selection Notes

Select this component when designing protection for single-cell Li-ion or Li-Po batteries requiring a compact, low-current solution. The AP9101CAK6-CATRG1 is suitable for applications needing precise voltage monitoring with minimal external components. Consider the SOT-26-6 package size and the specified operating temperature range of -40°C to +85°C to ensure environmental suitability for the target device.

Battery Management Part Context

This part belongs to the AP9101C series of battery management ICs from Diodes Incorporated. The series offers integrated protection for single-cell lithium-based batteries, combining detection logic with control outputs. The AP9101CAK6-CATRG1 specifically utilizes the SOT-26-6 package, distinguishing it from other series members like those in SOT-25 packages. It serves as a specialized PMIC for ensuring battery safety in consumer electronics.

Battery Management Replacement Considerations

Check for direct substitutes within the AP9101C family, such as AP9101CK6-ADTRG1, noting differences in voltage ranges and package types. Verify if alternative manufacturers offer functionally equivalent single-cell protection ICs in SOT-26 packages. Ensure any replacement maintains the same pinout compatibility and electrical specifications for seamless integration.