TEA19051BAFTK/1J

Controllers Overview

The TEA19051BAFTK/1J is a highly configurable secondary side SMPS controller designed for USB-PD 2.0, USB-PD 3.0, QC 2.0, QC 3.0, and QC 4+ protocols. It supports USB Type-C v1.3 and BC1.2 standards. The device operates within a wide output voltage range of 2.9 V to 21 V and achieves ultra-high efficiency with no-load power below 30 mW. It features precise constant voltage (CV) and constant current (CC) control with better than 2% accuracy. The IC includes an embedded MCU, MTP memory, and hardware-implemented protections such as OTP, OVP, UVP, and OCP.

Controllers Feature Summary

• Supports multiple fast-charging protocols including USB-PD 2.0/3.0, QC 2.0/3.0/QC4+, and BC1.2
• Integrates an embedded MCU with non-volatile MTP memory for flexible system configuration
• Provides comprehensive hardware-based safety protections against overtemperature, overvoltage, and short circuits
• Features dedicated pins for driving external NMOS load switches and enabling fast output discharge

Controllers Applications

• USB chargers for smartphones and tablets supporting Qualcomm QuickCharge protocols
• USB-PD 3.0 Type-C chargers with optional VDM support
• High-power adapters requiring fail-safe overload protection

Controllers Procurement Notes

Verify the specific factory-configured version by checking the marking code on the component body. Confirm that the ordering suffix matches the required protocol set and default parameters. Ensure compatibility with the primary side controller and synchronous rectifier for the complete SMPS solution.

Controllers Selection Notes

Select this controller based on the required charging protocols and maximum output voltage. Consider the low BOM count and small HVSON16 package for high-density designs. Verify that the default MTP settings align with the target application's voltage and current requirements before finalizing the design.

Controllers Part Context

This component belongs to the TEA19051BTK family of secondary side controllers from NXP Semiconductors. It serves as a programmable replacement for traditional shunt regulators like the TL431, integrating digital control and protocol handling into a single low-pin-count package.

Controllers Replacement Considerations

Direct replacements are limited due to factory-specific configurations. Review the TEA19051BAA, BAB, BAC, BAG, BAH, BAK, BAM, BAP, and BAR variants for alternative protocol combinations or default settings.