AP9101CAK6-CHTRG1

Battery Management Overview

The AP9101CAK6-CHTRG1 is a single-cell lithium-ion or lithium-polymer battery protection IC manufactured by Diodes Incorporated. It operates within a supply voltage range of 1.5 V to 5.5 V and supports output detection voltages from 2.5 V to 4.375 V. The device features ultra-low current consumption, drawing typically 3 µA in operation mode at +25°C with a 3.5 V supply. It provides high-accuracy voltage detection for overcharge (±25 mV) and overdischarge conditions, utilizing a built-in fixed time circuit that eliminates the need for external capacitors. The component is housed in an SOT-26 package and functions by controlling external MOSFET switches to protect against abnormal currents and voltages.

Battery Management Feature Summary

• Integrated protection logic detects overcharge, overdischarge, overcharge current, and overdischarge current abnormalities to automatically control external MOSFET switches.
• Built-in fixed time circuitry removes the requirement for external timing capacitors, simplifying the protection circuit design.
• High-precision voltage detection circuits ensure accurate monitoring of cell status with tight hysteresis and detection accuracy specifications.

Battery Management Applications

• Protection circuits for single-cell lithium-ion rechargeable battery packs
• Safety management systems for lithium-polymer battery modules
• Portable electronic devices requiring low standby power consumption

Battery Management Procurement Notes

Verify the specific suffix CHTRG1 against official Diodes Incorporated documentation to confirm exact detection voltage thresholds and tolerance levels. Confirm package integrity and moisture sensitivity classification prior to assembly. Ensure compatibility with external MOSFET gate drive requirements. Check for any recent product change notifications or end-of-life statuses associated with this specific ordering code.

Battery Management Selection Notes

Select this component when designing protection for single-cell Li-ion or Li-Po batteries requiring minimal external components. The integrated timing function reduces bill of materials count. Ensure the required overcharge and overdischarge detection voltages fall within the configurable ranges supported by the CH suffix variant. Verify that the operating temperature range meets the application's environmental constraints.

Battery Management Part Context

This part belongs to the AP9101C series of battery management ICs designed specifically for single-cell lithium-based chemistries. The series emphasizes compact solutions by integrating protection logic and timing functions into small surface-mount packages like SOT-26. It serves as a critical safety interface between the battery cell and the system load or charger.

Battery Management FAQ

Does the AP9101CAK6-CHTRG1 require external capacitors for its timing functions?

No, the device includes a built-in fixed time circuit, which eliminates the need for external capacitors to set protection delays.

What types of battery chemistries are supported by this IC?

The AP9101CAK6-CHTRG1 is designed for use with lithium-ion and lithium-polymer rechargeable batteries.