STMicroelectronics TCPP01-M12

Overview

TCPP01-M12 from STMicroelectronics is a USB Type-C™ port protection IC designed for sink/UFP applications, providing adjustable VBUS overvoltage protection (5–22 V), 6.0 V CC-line OVP, ±8 kV/±15 kV IEC 61000-4-2 ESD protection on CC1/CC2, integrated N-MOSFET gate driver, and 0 nA quiescent current in cable-unplugged state - deployed in smart speakers, IoT gateways, and battery-powered consumer devices.

For engineers reviewing the TCPP01-M12 datasheet, TCPP01-M12 pinout, TCPP01-M12 application, or TCPP01-M12 equivalent, key selection considerations include VBUS OVP threshold adjustability via external resistor divider, dead-battery management logic compatibility with 3.3 V MCU GPIO control, CC-line short-to-VBUS response time (<70 ns), and QFN-12L package integration adjacent to USB-C receptacles.

Technical Context

The TCPP01-M12 implements dual-path overvoltage protection: a fast internal FET (RON = 1.2 Ω, t_{ovp_cc} = 70 ns) clamps CC1/CC2 during VBUS short events, while an external N-MOSFET-driven by an integrated charge pump and gate driver-is controlled via VBUS_CTRL to enforce adjustable VBUS OVP (V_{ovp_th} = 1.27 V typical, hysteresis = 10%).

Its architecture separates signal-domain (CC1c/CC2c, CC1/CC2, DB/, FLT/) and power-domain (IN_GD, SOURCE, GATE, VBUS_CTRL) pins, enabling safe isolation between low-voltage MCU logic (3.3 V VCC) and up-to-22 V VBUS paths; dead-battery logic activates Rd resistors on CC lines when DB/ is pulled high by MCU GPIO, satisfying USB PD 3.1 SPR/PPS sink requirements.

Key Specifications

Pinout & Package

TCPP01-M12 is housed in a 3 mm × 3 mm, 0.4 mm pitch QFN-12L package with exposed thermal pad (GND). Its compact footprint allows placement within 2 mm of the USB Type-C™ receptacle for optimal high-frequency ESD and transient suppression.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB Type-C™ sink port protection applications.

Compared with TPS65987D and IP5306, TCPP01-M12 uniquely delivers certified ESD immunity, sub-70 ns CC OVP response, and true 0 nA standby - making it the only choice for battery-constrained, USB IF-certified sink devices where external MCU handles PD protocol.

Availability

TCPP01-M12 is available at Aetrix Electronics and suitable for smart audio devices, IoT edge gateways, portable medical sensors, and USB-C power tools requiring stable component supply, long-term lifecycle support, and USB IF-certified port protection.

Supply support for TCPP01-M12 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, delivering intelligent power, sensing, and control solutions across automotive, industrial, and consumer markets.

TCPP01-M12 belongs to ST's USB Type-C™ Port Protection product line, engineered specifically to simplify migration from legacy USB connectors to USB-C in cost-sensitive, battery-operated sink devices while meeting USB IF certification and IEC 61000-4-2 compliance.

FAQ

What is the function of the DB/ pin in TCPP01-M12?

The DB/ pin is a digital input that enables dead-battery management logic. When driven high by a 3.3 V MCU GPIO, it activates internal Rd resistors on CC1/CC2 lines to signal "dead battery" condition to the source during USB PD contract negotiation. It also gates VCC supply to achieve 0 nA quiescent current when no cable is attached.

Can TCPP01-M12 be used in source (DFP) applications?

Yes - TCPP01-M12 supports source configurations per its datasheet, providing VBUS OVP and CC-line protection. However, it lacks integrated PD policy engine or VCONN generation; it must be paired with a separate USB PD controller (e.g., STM32G4 with UCPD) and external VCONN LDO for full DFP functionality.

How does the FLT/ pin behave during overtemperature events?

The FLT/ pin is an open-drain output that pulls low within 5 µs of OTP activation. It remains low until junction temperature falls below the hysteresis threshold (~125 °C turn-off after ~145 °C turn-on), then returns to high-impedance state. External pull-up is required for microcontroller interrupt detection.

What external components are mandatory for basic TCPP01-M12 operation?

Mandatory components include: (1) resistor divider on VBUS_CTRL to set OVP threshold, (2) external N-channel MOSFET on VBUS path (SOURCE, GATE, IN_GD connections), (3) 100 nF/50 V capacitor on CBIAS pin for ESD filtering (per AN4871), and (4) external pull-up on FLT/ for fault monitoring. No bypass capacitor is required on VCC due to internal regulation.