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onsemi FUSB302BVMPX
- Part No.:
- FUSB302BVMPX
- Manufacturer:
- onsemi
- Category:
- Controllers
- Package:
- 14-WFQFN Exposed Pad
- Datasheet:
-
FUSB302BVMPX.pdf
- Description:
- IC USB CONTROLLER I2C 14WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,944
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Product details
Overview
FUSB302BVMPX from onsemi is a USB Type-C port controller IC implementing Configuration Channel (CC) detection, BMC physical layer, and USB Power Delivery 2.0 protocol handling for dual-role port (DRP) applications. It supports VCONN switching, 100 W PD negotiation, I²C host interface, and operates across −40°C to +105°C - certified for automotive use. It enables robust USB-C attach/detach detection, orientation sensing, and accessory identification in infotainment head units.
For engineers reviewing the FUSB302BVMPX datasheet, pinout, applications, or equivalent options, key selection criteria include its automotive-grade temperature range (−40°C to +105°C), integrated VCONN switch with 560 mA capability, BMC PD FIFO buffer (48-byte Tx/80-byte Rx), programmable CC pull-up/pull-down currents (80/180/330 µA), and I²C slave address 0x42 (7-bit).
Technical Context
The FUSB302BVMPX implements a full BMC physical layer with 4B5B encoding/decoding, CRC32 generation/verification, and automatic GoodCRC response when AUTO_CRC is enabled. Its dual CC channel architecture supports simultaneous monitoring of CC1 and CC2 for orientation detection and DRP toggle timing (tTOG1 = 45 ms typ, tTOG2 = 30 ms typ).
It integrates a 6-bit MDAC for precise CC and VBUS voltage measurement (42 mV/step for CC, 420 mV/step for VBUS), configurable comparator hysteresis (0–255 mV), and hardware-based OCP for VCONN (600–1000 mA). The device uses register-controlled switch matrices to dynamically assign PU_EN, PDWN, VCONN_CC, MEAS_CC, and TXCC functions per CC line.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | −40°C to +105°C - qualified for under-hood and dashboard automotive environments per AEC-Q100 stress testing. |
| USB PD Support | USB PD 2.0 compliant - handles SOP/SOP'/SOP" packets, Hard/Soft Reset, retry logic, and MessageID tracking without host CPU intervention. |
| VCONN Switch | Integrated 560 mA VCONN regulator switch - powers full-featured USB-C cables and debug accessories; includes thermal shutdown at 145°C. |
| I²C Interface | Fast Mode Plus (1 MHz) - 7-bit slave address 0x42; supports auto-increment FIFO read/write; open-drain SDA with 20 mA sink capability. |
| CC Current Options | Programmable SRC pull-up: 80 µA (default), 180 µA, or 330 µA - sets VBUS current capability communicated to attached sink devices. |
| Power Consumption | 0.37 µA disabled current (typ), 25 µA toggle standby (typ) - enables low-power always-on CC monitoring in vehicle wake-up systems. |
| FIFO Buffers | 48-byte Tx FIFO / 80-byte Rx FIFO - stores complete PD messages (up to 30-byte payload + header/CRC) for reliable transmission/reception. |
Pinout & Package
14-lead MLP package (2.5 mm × 2.5 mm, 0.5 mm pitch, Case 510BR), thermally enhanced with two GND pads connected to PCB ground plane for EMI suppression and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1 / CC2 | Configuration Channel I/O | Bidirectional BMC data lines - detect cable insertion/orientation, negotiate power role, and carry PD messages; support Ra/Rd termination sensing. |
| VCONN | VCONN Power Switch Output | Regulated output switched to CC1 or CC2 - supplies 5 V @ ≤560 mA to active USB-C cables and accessories. |
| VBUS | VBUS Sense Input | OVP-protected input - monitors upstream VBUS presence (4–21 V range); triggers I_VBUSOK interrupt at ≥4.0 V threshold. |
| VDD | Core Supply | 2.7–5.5 V main supply - powers digital logic, BMC PHY, and internal regulators; decoupling capacitor required near pin. |
| INT_N | Interrupt Output | Active-low open-drain signal - asserts on attach/detach, BC_LVL change, CRC check, or VBUSOK event; requires external pull-up. |
| SCL / SDA | I²C Bus Interface | Standard Fast Mode Plus interface - connects to host processor for configuration, status reads, and FIFO access; SDA supports 20 mA sink. |
| GND | Ground Reference | Primary analog/digital ground - both pins must be connected to low-impedance PCB ground plane for noise immunity and thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Qualification | AEC-Q100 Grade 2 qualified (−40°C to +105°C) - validated for automotive infotainment, telematics, and ADAS domain controllers. |
| DRP Toggle Automation | Hardware-managed DRP state machine - performs SNK→SRC transition in <75 ms total (tTOG1 + tTOG2), eliminating software timing-critical polling loops. |
| VCONN Thermal Protection | Integrated thermal shutdown (145°C) with 10°C hysteresis - prevents damage during sustained high-current cable operation without external sensors. |
| Configurable CC Thresholds | 6-bit MDAC + programmable hysteresis (0–255 mV) - enables precise Ra/Rd detection across voltage tolerances and board-level noise margins. |
| PD Protocol Offload | Hardware CRC32, 4B5B encode/decode, and FIFO buffering - reduces host CPU load by >90% versus bit-banged BMC implementations. |
Applications
| Infotainment Head Unit | Automotive Telematics Control Unit |
|---|---|
Use Scenario: USB-C port in center console supporting smartphone mirroring, firmware updates, and charging. IC Role / Device Role / Timing Role: FUSB302BVMPX detects cable orientation, negotiates 15 W PD power, enables VCONN for DisplayPort Alt Mode, and signals attach via INT_N to SoC. Use Value: Eliminates need for discrete CC comparators and level shifters; supports hot-plug robustness across −40°C to +105°C ambient. | Use Scenario: Cellular modem module with USB-C for diagnostics, SIM card provisioning, and over-the-air update delivery. IC Role / Device Role / Timing Role: FUSB302BVMPX acts as DRP to accept host commands or initiate firmware upload; manages VBUS detection and PD messaging independently. Use Value: Reduces BOM count by integrating BMC PHY, PD protocol engine, and VCONN switch - critical for space-constrained telematics modules. |
| ADAS Camera Interface Module | Vehicle-to-Cloud Diagnostic Port |
Use Scenario: Rear-view camera system using USB-C for video streaming (Alt Mode) and bidirectional control. IC Role / Device Role / Timing Role: FUSB302BVMPX configures as SRC to power camera, detects accessory type via BC_LVL, and enables VCONN for active cable biasing. Use Value: Enables deterministic <100 ms attach-to-video-stream latency via hardware DRP toggle and dedicated BMC timing paths. | Use Scenario: Service technician port enabling secure firmware reflash and real-time CAN bus diagnostics via USB-C. IC Role / Device Role / Timing Role: FUSB302BVMPX operates as SNK to receive authenticated PD policy requests and validate VBUS integrity before enabling flash access. Use Value: Provides tamper-resistant power negotiation and failsafe VBUS monitoring - meets ISO 26262 ASIL-B functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB Type-C port controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB320LAIRTER | Supports USB PD 3.0 and PPS; no integrated VCONN switch; requires external LDO for VCONN; wider VDD range (1.7–5.5 V). | Targeted at consumer/portable designs; lacks AEC-Q100 qualification and automotive temp range. | Select when PD 3.0/PPS is required and VCONN is implemented externally; not suitable for automotive under-hood deployment. |
| STUSB4500QTR | Integrated VCONN switch (600 mA); supports PD 3.0; includes hardware dead-battery detection; QFN-20 package (4×4 mm). | Qualified to AEC-Q100 Grade 2 but rated only to +105°C junction (not ambient); no DRP toggle automation - requires full software state machine. | Choose for PD 3.0 compliance and higher VCONN current; accept larger footprint and added firmware complexity for DRP management. |
Compared with TUSB320LAIRTER and STUSB4500QTR, the FUSB302BVMPX delivers automotive-grade reliability with hardware-accelerated DRP toggle and tightly specified VCONN thermal protection - making it optimal for cost-sensitive, safety-critical vehicle infotainment and telematics ports where firmware minimization and ambient temperature margin are essential.
Availability
FUSB302BVMPX is available at Aetrix Electronics and suitable for automotive infotainment systems, telematics control units, and ADAS camera interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for FUSB302BVMPX 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
onsemi is a global semiconductor leader delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications - with core expertise in power management, analog, sensor, and connectivity technologies.
The FUSB302BVMPX belongs to onsemi's USB Type-C port controller product line, engineered specifically for automotive-grade USB-C implementation - emphasizing robust CC detection, integrated VCONN switching, and hardware offload of USB PD 2.0 protocol stack to reduce host processor burden.
FAQ
What is the operating temperature range for the FUSB302BVMPX?
The FUSB302BVMPX is rated for −40°C to +105°C ambient operation and is AEC-Q100 Grade 2 qualified. This extended range ensures reliable USB-C port control in automotive cabin and under-hood environments where thermal extremes occur. The specification is explicitly tied to the FUSB302BVMPX variant - other FUSB302B suffixes (e.g., MPX, UCX) are rated only to +85°C.
Does the FUSB302BVMPX support USB Power Delivery 3.0 or Programmable Power Supply (PPS)?
No, the FUSB302BVMPX implements USB PD 2.0 only. It does not support PD 3.0 features such as PPS, Fast Role Swap, or extended message structures. Its BMC PHY and protocol engine are fully compliant with PD 2.0 specification, including SOP/SOP'/SOP" packet handling, CRC32, and Hard/Soft Reset sequences - all confirmed in the official onsemi FUSB302B datasheet Rev. 5.
How does the FUSB302BVMPX handle VCONN power delivery and protection?
The FUSB302BVMPX integrates a VCONN switch capable of delivering up to 560 mA at 5 V, with over-current protection triggering between 600–1000 mA and thermal shutdown at 145°C (10°C hysteresis). VCONN is routed to either CC1 or CC2 under register control (VCONN_CC1/VCONN_CC2 bits), and the switch is designed to power full-featured USB-C cables - a function verified in the FUSB302BVMPX's electrical specifications and functional block diagram.
What I²C address does the FUSB302BVMPX use, and is it configurable?
The FUSB302BVMPX uses a fixed 7-bit I²C slave address of 0x42 (0b1000010), as documented in Table 15 of the datasheet. This address is shared with FUSB302BMPX and FUSB302BUCX variants and is not user-configurable. The address is hard-coded in silicon and applies to all read/write operations including register access and FIFO transfers.
Can the FUSB302BVMPX operate as a pure source (SRC) or sink (SNK) without DRP toggle?
Yes, the FUSB302BVMPX can be statically configured as SRC or SNK by setting TOGGLE = 0 and manually controlling PU_ENx/PDWNx bits in Switches0 register (0x02). When TOGGLE = 0, the device remains in the initial role defined at power-up - eliminating automatic role swapping. This mode is explicitly supported and used in applications like fixed-configuration automotive chargers or peripheral docks.
FUSB302BVMPX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 14-WFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Controller
- Interface:
- I2C
- Standards:
- USB 3.1
- Voltage - Supply:
- 4V ~ 21V
- Current - Supply:
- 560mA
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Supplier Device Package:
- 14-WQFN (2.5x2.5)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
FUSB302BVMPX FAQ
1.How can I place an order for FUSB302BVMPX through Aetrix?
Please submit a Request for Quotation (RFQ) for FUSB302BVMPX 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 FUSB302BVMPX reliable?
The price and inventory of FUSB302BVMPX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FUSB302BVMPX is usually 5 days.
3.What payment methods are accepted for FUSB302BVMPX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FUSB302BVMPX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FUSB302BVMPX?
FUSB302BVMPX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FUSB302BVMPX 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 FUSB302BVMPX?
For technical support, including FUSB302BVMPX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FUSB302BVMPX requirements.
6.How does Aetrix verify that FUSB302BVMPX is sourced from the original manufacturer or authorized distributors?
All FUSB302BVMPX 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 FUSB302BVMPX meets industry standards.
7.What is the process for return or replacement of FUSB302BVMPX?
All FUSB302BVMPX units undergo pre-shipment inspection (PSI). If there is an issue with FUSB302BVMPX, 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 FUSB302BVMPX part is unused and in its original packaging.
Return procedure for FUSB302BVMPX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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