AP9101CAK-BATRG1

Overview

The AP9101CAK-BATRG1 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 protection. 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. 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 temperatures from -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 active operation and power-down modes to preserve 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 'BA' against the official Diodes Incorporated datasheet to confirm exact detection voltage thresholds and hysteresis values. Confirm package availability and RoHS compliance status through authorized distributors. Check for product change notices or end-of-life announcements prior to final design commitment.

Selection Notes

Select this component for applications requiring precise single-cell battery protection with minimal external component count. Ensure the required overcharge and overdischarge detection voltages align with the available threshold options defined in the datasheet. Verify that the SOT-25-5 package fits the PCB layout constraints and thermal requirements of the target design.

Part Context

The AP9101C series represents a family of battery management ICs designed for single-cell Li-ion and Li-Po batteries. These devices offer integrated protection functions to replace discrete solution designs, reducing board space and assembly complexity. The series includes various packages such as SOT-25 and SOT-26 with different detection voltage configurations.

FAQ

Does the AP9101CAK-BATRG1 require external capacitors for timing?

No, the AP9101CAK-BATRG1 includes a built-in fixed time circuit, eliminating the need for external capacitors for protection timing.

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

The typical power consumption in power-down mode is 0.01 µA at a supply voltage of 3.5 V.