AP9101CK6-COTRG1

Battery Management Overview

The AP9101CK6-COTRG1 is a single-cell battery protection IC manufactured by Diodes Incorporated, designed for lithium-ion and lithium polymer rechargeable batteries. It integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, overcharge current, and overdischarge conditions, automatically controlling external MOSFET switches to isolate the battery during faults. 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 4.275 V. Key electrical parameters include a typical operating current of 3 µA at +25°C with a 3.5 V supply, and a power dissipation rating of 250 mW. It functions reliably across an ambient temperature range of -40°C to +85°C.

Battery Management Feature Summary

• Integrates high-precision voltage detection circuitry for monitoring overcharge and overdischarge states without requiring external capacitors for timing.
• Provides comprehensive fault protection by detecting abnormal currents and voltages to trigger external MOSFET switch isolation.
• Features ultra-low current consumption in both operation and power-down modes to maximize battery life in portable applications.

Battery Management Applications

• Protection circuits for single-cell lithium-ion battery packs
• Safety management for lithium polymer battery systems
• Portable electronic devices requiring compact battery protection

Battery Management Procurement Notes

Verify the specific suffix code against the manufacturer's official datasheet to confirm exact detection voltage thresholds and hysteresis settings, as these vary significantly across the AP9101C series. Confirm package availability and lead times directly with authorized distributors, as stock levels fluctuate. Ensure the selected variant matches the required overcharge and overdischarge voltage parameters for the target battery chemistry before finalizing procurement orders.

Battery Management Selection Notes

Select this component when designing protection for single-cell Li-ion or Li-Po batteries requiring minimal external components. The fixed-time circuit eliminates the need for external capacitors, simplifying the bill of materials. Choose variants based on precise voltage detection requirements, as different suffixes offer distinct overcharge and overdischarge thresholds. Ensure the SOT-26 package fits the PCB layout constraints and that the thermal performance meets the 250 mW dissipation limit under worst-case operating conditions.

Battery Management Part Context

This part belongs to the AP9101C family of battery management ICs from Diodes Incorporated. The series is engineered for cost-effective, space-constrained battery protection solutions. Variants within the family share the same core architecture and SOT-26/SOT-25 packaging options but differ in detection voltage parameters defined by their ordering suffixes. This specific model represents a standard configuration within the broader portfolio of charge management and protection integrated circuits.

Battery Management Replacement Considerations

Direct substitutes may include other AP9101C series variants with matching voltage thresholds, such as AP9101CK6-CCTRG1 or AP9101CK6-ADTRG1, provided the detection parameters align. Verify pin compatibility and package dimensions (SOT-26) to ensure mechanical interchangeability. Cross-reference datasheets to confirm equivalent current consumption and thermal characteristics before replacing the component in existing designs.