AP9101CK6-BYTRG1

Battery Management Overview

The AP9101CK6-BYTRG1 is a single-cell lithium-ion and lithium-polymer battery protection IC manufactured by Diodes Incorporated. It operates within a supply voltage range of 1.5 V to 5.5 V and supports output voltages from 2.8 V to 4.28 V. The device functions as a multicell battery manager in an SOT-26-6 surface-mount package, designed for SMD/SMT installation. It features a low quiescent current of 3.0 µA at +25°C with a 3.5 V supply. The component is rated for an operating temperature range of -40°C to +85°C and includes built-in fixed-time circuits to minimize external component requirements.

Battery Management Feature Summary

• Provides comprehensive protection against overcharge, overdischarge, overcharge current, and overdischarge current abnormalities by controlling external MOSFET switches.
• Integrates high-precision voltage detection circuits with fixed-time delay functionality, eliminating the need for external timing capacitors.
• Achieves ultra-low power consumption with a typical standby current of 0.01 µA in power-down mode.

Battery Management Applications

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

Battery Management Procurement Notes

Verify the specific suffix BYTRG1 against the official Diodes Incorporated datasheet to confirm exact detection voltage thresholds and hysteresis settings. Confirm RoHS compliance status and check for any product change notifications or end-of-life notices prior to ordering. Ensure the SOT-26-6 footprint matches the target PCB design specifications.

Battery Management Selection Notes

Select this component when designing protection circuits for single-cell Li-ion or Li-polymer batteries requiring high accuracy and minimal external parts. The integrated fixed-time circuit simplifies design complexity compared to solutions requiring external capacitors. Ensure the application voltage stays within the 1.5 V to 5.5 V operational range and that the thermal environment remains between -40°C and +85°C.

Battery Management Part Context

This part belongs to the AP9101C series, which offers a single-chip solution for lithium battery pack protection. The series is characterized by its ability to detect various abnormal conditions and shut down external switches. The AP9101CK6 variant specifically utilizes the SOT-26 package, providing a compact form factor suitable for space-constrained portable applications while maintaining robust protection capabilities.

Battery Management Replacement Considerations

Consult the manufacturer's cross-reference documentation for verified substitutes. Generic equivalents may not match the precise detection voltage steps or internal timing characteristics required for certified safety compliance.