AP9101CK-AYTRG1

Battery Management Overview

The AP9101CK-AYTRG1 is a battery management IC from Diodes Incorporated, designed for single-cell lithium-ion and lithium-polymer rechargeable batteries. It integrates high-precision voltage detection circuits to protect against overcharge, overdischarge, overcharge current, and overdischarge current 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 between 2.5 V and 4.425 V. It features low current consumption with a typical operating mode current of 3.0 µA at 3.5 V and a power-down mode current of 0.01 µA. 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.

Battery Management Feature Summary

• Integrates high-precision voltage detection for comprehensive protection against overcharge, overdischarge, and abnormal current conditions.
• Includes built-in fixed time circuits that eliminate the need for external capacitors, reducing component count.
• Supports low current consumption modes, including a specialized power-down state for extended standby efficiency.

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 code AYTRG1 against official Diodes Incorporated documentation to confirm exact electrical parameters and pinout compatibility. Confirm availability status as distribution listings may vary. Ensure the selected variant matches the required detection voltage steps and hysteresis values for the target application design.

Battery Management Selection Notes

Select this component when designing for single-cell Li-ion or Li-Po battery protection with minimal external components. The SOT-25-5 package suits space-constrained applications. Verify that the required overcharge and overdischarge detection thresholds align with the available step sizes specified in the datasheet. Consider the operating temperature range limits for environmental compliance.

Battery Management Part Context

This part belongs to the AP9101C series of battery management ICs from Diodes Incorporated. The series is engineered specifically for single-cell lithium-based battery protection. Variants within the series typically share core protection functionalities but differ in detection voltage precision, package types (such as SOT-25 or SOT-26), and specific operational characteristics defined by their ordering suffixes.

Battery Management FAQ

Does the AP9101CK-AYTRG1 require external capacitors for its timing circuits?

No, the AP9101C series includes built-in fixed time circuits, which eliminates the need for external capacitors for protection timing.

What battery chemistries are supported by this IC?

The IC is designed for lithium-ion and lithium-polymer rechargeable batteries.