TEA19051BAAT/1J

Controllers Overview

The TEA19051BAAT/1J is a secondary side Switch Mode Power Supply (SMPS) controller manufactured by NXP Semiconductors. It supports USB Type-C v1.3, USB-PD 2.0/3.0 with PPS, BC1.2, and Qualcomm QuickCharge protocols. The device operates within an output voltage range of 2.9 V to 21 V and provides continuous measurement of output voltage and current with better than 2% accuracy. It features a wide operating temperature range from -20 °C to +105 °C and draws a typical operating supply current of 3 mA. The component is housed in a SOIC-14 package.

Controllers Feature Summary

• Supports multiple fast-charging standards including USB-PD 3.0, QC 2.0/3.0/QC4+, and BC1.2
• Integrates hardware-based protections for overload, overvoltage, and short circuit conditions
• Includes embedded MCU with non-volatile MTP memory for system configuration
• Features dedicated pins for external NMOS load switch drive and fast output discharge

Controllers Applications

• USB chargers for smartphones supporting Qualcomm QuickCharge protocols
• USB-PD 3.0 Type-C chargers with optional Vendor Defined Message support
• Smartphone and tablet power adapters requiring high efficiency and low no-load power

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm exact package type and tape/reel specifications. Confirm that the component meets all required regional regulatory standards before finalizing procurement decisions.

Controllers Selection Notes

Select this controller for designs requiring a highly integrated secondary side solution. Ensure compatibility with primary controllers like the TEA193x series and synchronous rectifier controllers such as the TEA199x series to achieve optimal system performance and efficiency targets.

Controllers Part Context

This component belongs to the TEA19051BT family of SMPS controllers designed for smart charging applications. It serves as a programmable replacement for traditional shunt regulators, offering digital integration for precise voltage and current control in modern power adapter designs.

Controllers Replacement Considerations

Consult the manufacturer's product selection guide for alternative versions within the TEA19051BT family. Verify pinout and functional compatibility if substituting with other factory-configured variants or newer revisions.

Controllers FAQ

How does the TEA19051BAAT/1J handle output voltage transitions?

The controller implements linear or parabolic ramp-down sequences to prevent undershoot during voltage transitions, ensuring compliance with protocol requirements.

What protection mechanisms are implemented in hardware?

Hardware-implemented protections include OverTemperature Protection (OTP), Adaptive OverVoltage Protection (OVP), UnderVoltage LockOut (UVLO), and Output Short Protection (OSP).

Can the GPIO pins be used for temperature monitoring?

Yes, GPIO1 and GPIO2 can be configured via MTP to monitor external temperatures using NTC resistors, with options to enable OTP functions based on these readings.