AP9101CAK-BITRG1

Overview

The AP9101CAK-BITRG1 is a single-chip protection IC for 1-cell lithium-ion or lithium-polymer rechargeable battery packs, 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 detection voltages from 2.5 V to 4.425 V. It features low power consumption with typical operation current of 3.0 µA at 3.5 V and 0.01 µA in power-down mode. The component is housed in an SOT-25-5 surface-mount package and functions reliably across a 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 due to built-in fixed time circuits.
• Provides comprehensive battery safeguarding by detecting abnormal conditions such as overcurrent and turning off external MOSFET switches.
• Designed for minimal external component count, simplifying circuit design for single-cell lithium-based battery management applications.

Applications

• Protection circuits for single-cell lithium-ion battery packs
• Safety management for lithium-polymer rechargeable batteries
• Portable electronic devices requiring integrated battery monitoring

Procurement Notes

Verify the specific suffix BITRG1 against official Diodes Incorporated documentation to confirm exact detection voltage thresholds and package variations. Confirm availability status as distribution listings may vary. Ensure compatibility with target PCB footprint for SOT-25-5 packaging. Cross-reference RoHS compliance requirements with project specifications before finalizing procurement orders.

Selection Notes

Select this component when designing compact single-cell battery protection systems requiring high precision and low quiescent current. The SOT-25-5 package suits space-constrained layouts. Ensure the application voltage range aligns with the 1.5 V to 5.5 V operating specification. Consider the fixed internal timing features if minimizing external capacitor usage is a priority for cost or size reduction.

Part Context

This part belongs to the AP9101C series of battery management ICs from Diodes Incorporated. The series focuses on single-cell lithium battery protection with integrated detection capabilities. Variants within the family differ primarily by detection voltage settings and package types, such as SOT-25 or SOT-26, allowing designers to choose based on specific voltage thresholds and board space requirements.

FAQ

Does the AP9101CAK-BITRG1 require external capacitors for timing?

No, the AP9101CAK-BITRG1 includes built-in fixed time circuits, eliminating the need for external capacitors for standard protection timing functions.

What is the typical power consumption in power-down mode?

The typical power consumption in power-down mode is 0.01 µA, ensuring minimal battery drain when the system is inactive.