Diodes Incorporated DPO2039DABQ-13

Overview

DPO2039DABQ-13 from Diodes Incorporated is a 4-channel USB Type-C over-voltage protection IC designed to safeguard CC1/CC2 and DIFF1/DIFF2 signal paths against short-to-VBUS faults. It features dual-pair OVP switching (300 mΩ R_DS(ON) for CC, 5 Ω for DIFF), auto-recovery with 26–38 ms timing, and active-low FAULTB flag assertion within 300 μs. Used in notebook USB-C ports and docking stations to prevent EOS damage to USB PD controllers and PHYs.

For engineers reviewing the DPO2039DABQ-13 datasheet, DPO2039DABQ-13 pinout, DPO2039DABQ-13 application, or DPO2039DABQ-13 equivalent, key selection criteria include V_TH thresholds (6.0 V CC / 4.5 V DIFF), 200 MHz CC-bandwidth, IEC 61000-4-2 ESD rating, AEC-Q100 qualification, and U-QFN3030-16 (Type B) package compatibility with high-density USB-C layouts.

Technical Context

The device implements four independent uni-directional power switches-two optimized for low-capacitance, low-R_DS(ON) CC-line protection (50 pF C_IN, 300 mΩ typical), two for higher-voltage DIFF-line isolation (5 pF C_IN, 5 Ω typical). Each pair monitors its respective connector-side pin (CC1C/CC2C or DIFF1C/DIFF2C) against programmable over-voltage thresholds.

OVP response is hardware-triggered with sub-100 ns turn-off latency and built-in hysteresis (140 mV for CC, 110 mV for DIFF). Fault detection drives an open-drain FAULTB output, while thermal shutdown at +150 °C and UVLO (2.4 V nominal) ensure robust system-level fault containment under battery-depleted or hot-plug conditions.

Key Specifications

Pinout & Package

The DPO2039DABQ-13 is housed in a 4 × 4 mm U-QFN3030-16 (Type B) package with exposed thermal pad, optimized for space-constrained USB-C port layouts and thermal dissipation (R_θJA = 73 °C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB Type-C over-voltage protection applications.

Compared with TPD6S300AQPWRQ1 and USBLC6-2SC6, the DPO2039DABQ-13 uniquely delivers independent CC/DIFF threshold tuning, auto-recovery, and dual-supply capability (VSYS or VBUS), making it optimal for high-reliability USB-C systems requiring coordinated fault handling and signal integrity preservation.

Availability

DPO2039DABQ-13 is available at Aetrix Electronics and suitable for notebook USB-C port protection, automotive infotainment docking, and universal docking station designs requiring stable component supply, AEC-Q100 compliance, and production-ready tape-and-reel packaging.

Supply support for DPO2039DABQ-13 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

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal ICs, with manufacturing certified to IATF 16949 and product definitions aligned to automotive and industrial reliability standards.

The DPO2039DABQ-13 belongs to Diodes' USB-C protection product line, engineered specifically to address EOS risks in high-density, high-power USB Type-C implementations across computing, automotive, and consumer electronics.

FAQ

What is the maximum short-to-VBUS voltage the DPO2039DABQ-13 can withstand on CC pins?

The device tolerates up to 24 V on CCxC pins during hot-plug events with a 1-meter USB-C cable and 30 Ω load on CCxS, verified per datasheet Figure 16. This exceeds USB PD 3.0's 20 V maximum, providing margin against transient overshoot and cable-induced spikes without triggering OVP.

Does the DPO2039DABQ-13 require external components for basic operation?

Yes - a 0.1 μF capacitor must be placed between CB pin and GND to stabilize internal ESD protection circuitry, and a 10 kΩ pull-up resistor is required on FAULTB for proper open-drain signaling. No external gate resistors or bias networks are needed for standard USB-C port integration.

How does the DPO2039DABQ-13 handle simultaneous over-voltage events on CC and DIFF lines?

It detects and responds independently per channel pair: CC1C/CC2C and DIFF1C/DIFF2C each have dedicated comparators and FET drivers. If either pair exceeds its threshold, FAULTB asserts immediately; both pairs can trigger simultaneously without interference, and recovery timing is per-channel.

Is the U-QFN3030-16 (Type B) package compatible with standard reflow profiles?

Yes - the package is qualified for lead-free reflow per J-STD-020, with peak temperature support up to +260 °C (lead-free) and thermal resistance specs validated on 2oz copper FR-4 boards. The exposed pad must be soldered to a solid GND plane for thermal and electrical performance.