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Home > Products > Circuit Protection > Surge Suppression Ics

Diodes Incorporated DPO2036DBB-7

Name: DPO2036DBB-7
Brand: Diodes Incorporated
SKU: DPO2036DBB-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DPO2036DBB-7

Manufacturer:: Diodes Incorporated

Category:: Surge Suppression Ics

Package:: 12-UFQFN Exposed Pad

Datasheet:: DPO2036DBB-7.pdf

Description:: DATALINE OVER VOLTAGE PROTECTION

Quantity:: RFQ Add To RFQ list

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Inventory:43,881

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Product details

Overview

DPO2036DBB-7 from Diodes Incorporated is a 4-channel USB Type-C® over-voltage protection IC designed to safeguard CC1/CC2 and SBU1/SBU2 signal paths against short-to-VBUS faults. It integrates dual-pair OVP FETs with R_DS(ON) of 350 mΩ (CC) and 5 Ω (SBU), auto-recovery response ≤100 ns, and dead-battery pull-down resistors (5.1 kΩ typ.) for CC lines-enabling power negotiation in fully depleted mobile systems.

For engineers reviewing the DPO2036DBB-7 datasheet, DPO2036DBB-7 pinout, DPO2036DBB-7 application, or DPO2036DBB-7 equivalent, key selection criteria include V_OVP thresholds (6.0 V CC / 4.5 V SBU), ±22 V short-to-VBUS tolerance, 200 MHz CC bandwidth, thermal shutdown at +150°C, and U-QFN2020-12 (Type B) package compatibility with high-density USB-C port layouts.

Technical Context

The DPO2036DBB-7 implements four independent uni-directional OVP switches-two for CC pins (CC1C/CC2C → CC1S/CC2S) and two for SBU pins (SBU1C/SBU2C → SBU1S/SBU2S)-each with dedicated voltage comparators, hysteresis (140 mV CC / 110 mV SBU), and fast turn-off logic. Fault detection triggers FAULTB assertion within 300 μs and isolates system-side I/O within 100 ns.

It supports dual-power sourcing: primary operation from V_VSYS (2.7–5.5 V), with seamless fallback to V_CONN-derived power during dead-battery mode via integrated RD pull-downs on CC1C/CC2C. Thermal shutdown (+150°C) and UVLO (2.4 V) ensure robustness under abnormal supply or ambient conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
OVP Threshold (CC)	6.0 V typical - triggers isolation before VBUS-induced EOS damages sub-micron USB PD controllers
OVP Threshold (SBU)	4.5 V typical - protects low-voltage SBU analog signaling paths from 5 V/9 V/15 V VBUS shorts
R_DS(ON) (CC path)	350 mΩ typical - minimizes voltage drop and signal distortion on high-speed CC configuration channel
R_DS(ON) (SBU path)	5 Ω typical - balances low-leakage isolation with acceptable insertion loss for auxiliary analog signals
Response Time	<100 ns - ensures system-side ICs survive transient VBUS shorts without latch-up or gate oxide rupture
Bandwidth (CC)	200 MHz - preserves USB PD communication integrity up to 300 kbps BMC signaling
Dead-Battery RD	5.1 kΩ typical - meets USB Type-C Specification pull-down requirement for source detection when battery = 0 V

Pinout & Package

Housed in a 2.0 mm × 2.0 mm × 0.5 mm U-QFN2020-12 (Type B) package with exposed thermal pad, the DPO2036DBB-7 uses a 3×4 pin grid with pin 1 marked by top-side dot. The thermal pad must be soldered to PCB ground plane for thermal management (R_θJA = 96°C/W).

Pin/Terminal	Circuit Role	Design Meaning
1 SBU1C	USB-C connector side SBU1 input	Receives SBU1 signal from Type-C receptacle; rated for 24 V max short-to-VBUS
2 SBU2C	USB-C connector side SBU2 input	Receives SBU2 signal; enables dual-auxiliary channel protection
3 CC1C	USB-C connector side CC1 input	Primary configuration channel input; includes embedded 5.1 kΩ pull-down for dead-battery mode
4 CC2C	USB-C connector side CC2 input	Redundant configuration channel input; identical dead-battery support as CC1C
5 CB	ESD capacitor connection	Requires 0.1 μF capacitor to GND to suppress ESD transients on all protected lines
6 FAULTB	Active-low fault indicator	Open-drain output asserted low during OVP; sinks ≤8 mA; requires external pull-up
7 CC2S	System-side CC2 output	Drives CC2 pin of USB PD controller or mux; isolated during OVP
8 CC1S	System-side CC1 output	Drives CC1 pin of host IC; maintains signal integrity with 50 pF C_IN
9 SBU2S	System-side SBU2 output	Routes SBU2 to baseband processor or audio codec; 5 pF C_IN preserves analog fidelity
10 SBU1S	System-side SBU1 output	Delivers SBU1 signal to system IC; supports crosstalk <−80 dB at 1 MHz
11 GND	Power and signal reference	Common return for all channels and thermal pad; must connect to solid ground plane
12 VSYS	Main supply input	Accepts 2.7–5.5 V system rail; powers internal logic, comparators, and FET drivers

Key Features

Feature	Design Value
Auto-recovery OVP	CC/SBU channels restore conduction after fault removal in 26–38 ms (fast recovery) or 1 ms (post-long-fault), eliminating manual reset
Dead-battery CC support	Integrated 5.1 kΩ pull-downs on CC1C/CC2C activate automatically when V_VSYS < UVLO, enabling charging negotiation with zero battery voltage
Short-to-VBUS tolerance	Withstands 22 V on CC/SBU connector pins without damage-exceeding USB PD 3.0 VBUS max (20 V)
Thermal protection	Shuts down at +150°C junction temperature with +20°C hysteresis, preventing thermal runaway during sustained overload
IEC61000-4-2 ESD rating	±2.0 kV HBM on all protected pins (CC1C/CC2C/SBU1C/SBU2C), eliminating need for external TVS diodes

Applications

USB-C Mobile Phone Charging Port

USB-C Docking Station Hub

Use Scenario: Protects smartphone SoC USB PD controller during hot-plug into high-power chargers or damaged cables causing CC/SBU-to-VBUS shorts.

IC Role / Device Role / Timing Role: Acts as fail-safe series switch between USB-C receptacle and application processor's USB PD PHY; asserts FAULTB within 300 μs.

Use Value: Prevents irreversible gate oxide failure in 28 nm/16 nm PD controllers by limiting fault energy via 100 ns OVP response and 350 mΩ R_DS(ON).

Use Scenario: Shields multi-port USB-C hub controller from cross-port VBUS coupling or cable assembly defects affecting SBU/CC lines.

IC Role / Device Role / Timing Role: Provides per-port OVP for four independent CC/SBU paths; FAULTB signals host MCU to disable affected port.

Use Value: Enables hot-swap reliability in 10+ port hubs by isolating faults without disrupting other active data/power lanes.

VR/AR Headset USB-C Interface

Thin-and-Light Notebook USB-C Port

Use Scenario: Secures headset's audio/video auxiliary (SBU) and configuration (CC) lines during repeated plugging into PC or charger with varying VBUS levels.

IC Role / Device Role / Timing Role: Maintains signal fidelity (200 MHz CC / 600 MHz SBU bandwidth) while blocking >6 V transients on CC and >4.5 V on SBU.

Use Value: Eliminates audible pop/noise in analog SBU audio paths and prevents BMC protocol lockup during transient overvoltage events.

Use Scenario: Integrates into ultra-thin notebook motherboard where space constraints prohibit discrete OVP solutions near USB-C receptacle.

IC Role / Device Role / Timing Role: Replaces 4× discrete MOSFETs + comparators + logic in 2.0 mm² footprint; thermal pad enables 1.3 W dissipation.

Use Value: Reduces BOM count by 70% and PCB area by 65% versus discrete protection while meeting USB-IF compliance for short-to-VBUS immunity.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TUSB546A	Single-channel USB 3.1 re-driver with integrated OVP; no SBU support; 3.3 V only supply	Designed for SuperSpeed data path protection-not CC/SBU signal integrity	Select only if protecting high-speed data lanes (TX/RX), not configuration/auxiliary pins
TPD6S300A	3-channel solution (CC1/CC2/SBU1 only); no SBU2 protection; 5.5 V OVP threshold fixed	Lacks second SBU channel and auto-recovery; requires external reset for fault clearance	Use when SBU2 is unused and system-level fault handling can tolerate manual reset

Compared with TUSB546A and TPD6S300A, the DPO2036DBB-7 uniquely delivers full 4-channel (CC1/CC2/SBU1/SBU2) protection with auto-recovery, dead-battery support, and dual OVP thresholds-making it the only single-chip solution for complete USB-C receptacle-side signal path hardening.

Availability

DPO2036DBB-7 is available at Aetrix Electronics and suitable for notebook PCs, VR headsets, and universal docking stations requiring stable component supply, USB-IF compliance assurance, and production-grade thermal performance.

Supply support for DPO2036DBB-7 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 manufacturer of discrete semiconductors and ICs, specializing in power management, signal integrity, and protection solutions for consumer, computing, and industrial markets.

The DPO2036DBB-7 belongs to Diodes' USB-C Protection product line, engineered specifically to address short-to-VBUS failure modes in compact portable devices-prioritizing ultra-fast response, minimal signal degradation, and dead-battery interoperability.

FAQ

What is the maximum VBUS voltage the DPO2036DBB-7 can withstand on CC and SBU pins?

The DPO2036DBB-7 supports short-to-VBUS tolerance up to 22 V on both CCxC and SBUxC pins, verified under hot-plug test conditions with 1-meter USB-C cables and specified load networks. This exceeds the USB PD 3.0 specification's 20 V VBUS maximum and ensures survivability against common cable/connector fault scenarios.

Does the DPO2036DBB-7 require external pull-up resistors on the FAULTB pin?

Yes, FAULTB is an open-drain output and requires an external pull-up resistor (typically 4.7–10 kΩ) to a 2.7–5.5 V rail. The device sinks up to 8 mA when asserting fault; the pull-up value must ensure V_OL ≤ 0.4 V under worst-case sink current and PCB trace capacitance.

How does the dead-battery mode function without external components?

The DPO2036DBB-7 embeds precision 5.1 kΩ pull-down resistors on CC1C and CC2C pins, activated automatically when V_VSYS falls below 2.4 V UVLO threshold. This satisfies USB Type-C Specification RD requirements, enabling source detection and VCONN-powered charging even with 0 V battery voltage-no external resistors needed.

Can the DPO2036DBB-7 protect both CC and SBU lines simultaneously during a single fault event?

Yes-the device monitors all four inputs (CC1C, CC2C, SBU1C, SBU2C) independently. A fault on any one pin triggers immediate FAULTB assertion and simultaneous turn-off of all four OVP FETs, ensuring complete isolation of system-side CC1S/CC2S/SBU1S/SBU2S from the faulted connector-side path.

DPO2036DBB-7 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Package/Case:: 12-UFQFN Exposed Pad

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Clamping:: 7V

Technology:: Internal Switch

Number of Circuits:: 4

Applications:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: U-QFN2020-12 (Type B)

DPO2036DBB-7 FAQ

1.How can I place an order for DPO2036DBB-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for DPO2036DBB-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for DPO2036DBB-7 reliable?

The price and inventory of DPO2036DBB-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DPO2036DBB-7 is usually 5 days.

3.What payment methods are accepted for DPO2036DBB-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DPO2036DBB-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DPO2036DBB-7?

DPO2036DBB-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DPO2036DBB-7 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for DPO2036DBB-7?

For technical support, including DPO2036DBB-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DPO2036DBB-7 requirements.

6.How does Aetrix verify that DPO2036DBB-7 is sourced from the original manufacturer or authorized distributors?

All DPO2036DBB-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DPO2036DBB-7 meets industry standards.

7.What is the process for return or replacement of DPO2036DBB-7?

All DPO2036DBB-7 units undergo pre-shipment inspection (PSI). If there is an issue with DPO2036DBB-7, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The DPO2036DBB-7 part is unused and in its original packaging.

Return procedure for DPO2036DBB-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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