AP9101CAK-CLTRG1

Overview

The AP9101CAK-CLTRG1 is a single-cell lithium-ion or lithium-polymer battery protection IC manufactured by Diodes Incorporated. It integrates high-precision voltage detection circuits to monitor overcharge, overdischarge, and current abnormalities, controlling external MOSFET switches for safety. 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. Designed for low power consumption, it features a typical operating current of 3 µA at +25°C with a 3.5 V supply. The component is housed in an SOT-25-5 surface-mount package and functions reliably across an industrial temperature range of -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 overvoltage conditions by controlling external MOSFETs.
• Features ultra-low current consumption in both operation and power-down modes to extend battery life.

Applications

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

Procurement Notes

Verify the specific suffix CLTRG1 against the official Diodes Incorporated datasheet to confirm exact detection voltage thresholds and hysteresis values. Ensure the ordering information matches the required SOT-25-5 package configuration. Confirm RoHS compliance status and check for any product change notifications or end-of-life notices prior to finalizing procurement decisions.

Selection Notes

Select this component when designing protection for single-cell Li-ion or Li-Po batteries requiring minimal external components. The built-in fixed time circuit eliminates the need for external capacitors, simplifying the bill of materials. Ensure the application voltage stays within the 1.5 V to 5.5 V operating range and that the thermal environment remains between -40°C and +85°C for reliable performance.

Part Context

This part belongs to the AP9101C series of battery management integrated circuits from Diodes Incorporated. The series is specifically engineered as a single-chip solution for protecting lithium-based battery cells. It falls under the Power Management ICs (PMIC) category, focusing on charge management and cell safety rather than general power regulation.

FAQ

Does the AP9101CAK-CLTRG1 require external capacitors for its timing circuits?

No, the AP9101CAK-CLTRG1 includes a built-in fixed time circuit, which allows the protection circuitry to function without external capacitors, thereby reducing the number of required external components.

What types of battery chemistries are supported by this IC?

The AP9101CAK-CLTRG1 is designed for use with lithium-ion and lithium-polymer rechargeable batteries.