AP9101CAK6-BITRG1

Battery Management Overview

The AP9101CAK6-BITRG1 is a single-cell lithium-ion or lithium-polymer battery protection IC from Diodes Incorporated, designed for charge management applications. It operates within a supply voltage range of 1.5 V to 5.5 V and supports output voltages between 2.3 V and 4.28 V. The device features ultra-low current consumption of 3 µA in operation mode and 0.01 µA in power-down mode. It provides high-accuracy detection for overcharge (±25 mV), overdischarge (±25 mV), and overcurrent conditions. Packaged in an SOT-26-6 surface-mount format, it functions across a temperature range of -40°C to +85°C with a maximum power dissipation of 250 mW.

Battery Management Feature Summary

• Integrates high-precision voltage detection circuits for overcharge and overdischarge protection without requiring external timing capacitors.
• Activates internal fixed-time delay circuits to prevent false triggering during transient events while maintaining rapid response to faults.
• Controls external MOSFET switches to isolate the battery pack upon detection of abnormal current or voltage conditions.

Battery Management Applications

• Protection circuits for single-cell lithium-ion rechargeable battery packs
• Safety management for lithium-polymer battery systems in portable electronics
• Charge management integration in consumer devices requiring low standby current

Battery Management Procurement Notes

Verify the specific suffix code to confirm exact detection voltage thresholds and hysteresis settings, as these parameters vary across the AP9101C series variants. Confirm package availability and lead times directly with authorized distributors, noting that some versions may be subject to special order requirements or end-of-life status. Ensure compliance with RoHS and REACH regulations relevant to your region before finalizing procurement.

Battery Management Selection Notes

Select this component when designing for single-cell Li-ion or Li-Po batteries requiring minimal external component count and ultra-low quiescent current. The SOT-26 package suits space-constrained PCB layouts. Evaluate the specific detection voltage steps required by the battery chemistry to choose the correct suffix variant. Ensure the application environment stays within the specified -40°C to +85°C operating temperature range for reliable performance.

Battery Management Part Context

This part belongs to the AP9101C family of battery protection ICs manufactured by Diodes Incorporated. The series is engineered specifically for single-cell lithium-based battery packs, offering a compact solution for protecting against common failure modes. The AP9101CAK6-BITRG1 represents a specific configuration within this lineup, distinguished by its pinout and electrical characteristics tailored for standard SMD assembly processes.

Battery Management Replacement Considerations

Direct substitutes within the same manufacturer include other AP9101C variants such as AP9101CK6-BUTRG1 or AP9101CAK6-CATRG1, provided their detection voltage thresholds match the design requirements. Cross-manufacturer replacements require careful verification of pin compatibility, threshold accuracies, and package dimensions to ensure functional equivalence without redesigning the host circuitry.

Battery Management FAQ

Does the AP9101CAK6-BITRG1 require external capacitors for timing delays?

No, the device includes built-in fixed-time delay circuits, eliminating the need for external capacitors typically used for setting protection delays in similar ICs.

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

The typical current consumption in power-down mode is 0.01 µA at +25°C with a supply voltage of 3.5 V.