NXP Semiconductors TEA19032BAAT/1J

Overview

TEA19032BAAT/1J from NXP Semiconductors is a USB-PD 3.0/PPS and QC4-compliant secondary-side SMPS controller in SO10 (SOT1437-1) package, delivering CV/CC regulation with <2% voltage and current accuracy, integrated USB-PD PHY, NMOS gate drive (SW pin), and fast Vbus discharge (DISCH pin) for USB-C power adapters.

For engineers reviewing the TEA19032BAAT/1J datasheet, TEA19032BAAT/1J pinout, TEA19032BAAT/1J application, or TEA19032BAAT/1J equivalent, key selection criteria include its hardware-based protections (OVP, OCP, OTP), MTP-programmable PDOs (up to 7, including 4 APDOs), cable compensation support, and single-optocoupler feedback architecture enabling CoC Tier-2/EuP Lot6 compliance.

Technical Context

The TEA19032BAAT/1J implements a dual-loop analog-digital hybrid control architecture: a hardware-accelerated CV loop using VSNS feedback and OPTO-driven optocoupler interface (TL431-compatible), and a CC loop using ISNS current sensing with 50× gain amplifier and 10-bit DAC. Its embedded MCU manages USB-PD protocol stack, PPS negotiation, and MTP configuration.

All critical protections-including OVP (30 µs response), OCP (20 ms), OTP (internal/external), OSUP, and CC-pin overvoltage-are implemented in dedicated hardware logic independent of firmware execution, ensuring fail-safe operation even during MCU lockup. The SW pin integrates a charge pump to drive external NMOS at VCC + 6 V, while DISCH provides controlled Vbus ramp-down meeting vSafe0V requirements.

Key Specifications

Pinout & Package

TEA19032BAAT/1J is housed in a plastic small outline package (SO10, SOT1437-1) with 10 leads and 3.9 mm body width, optimized for high-density USB-C adapter designs and compatible with standard reflow and wave soldering processes.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB-PD secondary-side controller applications.

Compared with STUSB4500 and MPQ4282-AEC1, the TEA19032BAAT/1J uniquely combines full USB-PD 3.0/PPS/QC4 protocol stack, hardware-enforced safety, MTP-configurable PDOs (including 4 APDOs), and integrated CV/CC regulation in a single SO10 package-enabling compact, field-programmable, and certification-ready USB-C power adapters.

Availability

TEA19032BAAT/1J is available at Aetrix Electronics and suitable for USB-C smartphone chargers, laptop power bricks, multi-protocol wall adapters, and automotive in-car USB-PD systems requiring stable component supply, long-term lifecycle support, and compliance with CoC Tier-2 and DOE Level VI efficiency standards.

Supply support for TEA19032BAAT/1J includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer electronics markets.

The TEA19032BAAT/1J belongs to NXP's TEA19000 family of highly integrated USB-PD secondary-side controllers, designed specifically to replace discrete TL431-based feedback architectures with programmable, safety-certified, and protocol-compliant SMPS control for high-efficiency USB-C power adapters.

FAQ

What USB-PD and QC protocols does the TEA19032BAAT/1J support?

The TEA19032BAAT/1J supports USB-PD 2.0 and 3.0 specifications including Programmable Power Supply (PPS), USB Type-C v1.3, Qualcomm QuickCharge QC4, and Unstructured Vendor Defined Messages (VDMs). It implements full DFP functionality with hardware-accelerated PHY and protocol stack, enabling negotiation of up to seven Power Data Objects (PDOs), four of which can be APDOs for PPS.

How does the TEA19032BAAT/1J achieve <30 mW no-load power consumption?

The TEA19032BAAT/1J achieves <30 mW system-level no-load power through ultra-low quiescent current design, automatic circuit disabling during unattached state, and optimized power sequencing. During no-load, only essential circuits remain active; the GPIO, DISCH, and SW pins enter low-power states, and the internal MCU enters sleep mode until CC-line attach detection triggers full activation-enabling compliance with CoC Tier-2 and DOE Level VI standards.

Can the TEA19032BAAT/1J operate without an external microcontroller?

Yes, the TEA19032BAAT/1J contains an embedded MCU with ROM, RAM, and MTP memory, enabling autonomous operation without an external host processor. All USB-PD negotiation, CV/CC regulation, protection responses, and GPIO configuration are handled internally. Firmware is preloaded and field-upgradable via VDM commands, eliminating the need for external code storage or processing resources in the adapter design.

What is the role of the DISCH pin on the TEA19032BAAT/1J and how is it used?

The DISCH pin on the TEA19032BAAT/1J is an internal low-ohmic switch that sinks current through an external series resistor to rapidly discharge Vbus to <0.8 V, satisfying the USB-PD vSafe0V requirement after hard reset. During discharge, the IC periodically opens the DISCH switch for 20 µs every millisecond to sample true Vbus voltage, ensuring termination only when voltage remains below 0.7 V-critical for safe USB-C connector detachment.

Does the TEA19032BAAT/1J require external components for voltage and current sensing?

Yes, the TEA19032BAAT/1J requires two external passive components: a resistor divider between VCC and GND connected to the VSNS pin for voltage sensing, and a precision shunt resistor (2–22.5 mΩ) between output return and ground connected to the ISNS pin for current sensing. Both component values must match MTP-programmed calibration constants to maintain <2% CV/CC accuracy; mismatch causes measurable regulation error requiring PCB-level correction.