FUSB307BMPX - USB Type-C TCPC Port Controller with USB-PD | onsemi
MPN: FUSB307BMPX ✓ NakahandaFUSB307BMPX Ulas
An LDO (Low-Dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input voltage is very close to the output voltage. USB Type-C Port Controllers with USB-PD fit into the broader hierarchy of USB interface ICs, themselves part of interface ICs that bridge processors to physical connectors. The FUSB307B acts as a standardized TCPC companion to a TCPM, offloading time-critical Power Delivery state-machine handling while letting the host processor manage policy and high-level decisions.
Key features of the FUSB307BMPX include integrated USB Type-C Rev 1.3 detection circuitry with manual attach/detach detection, autonomous handling of time-critical USB-PD messaging, support for up to four Type-C ports when multi-plexed by a TCPM, and I2C control interface for register access, GPIO control, and status polling. The 16-pin WQFN package with exposed pad enables compact PCB layouts in space-constrained mobile and laptop designs where every square millimeter counts.
Architecture-wise, the FUSB307B pairs a hardware USB-PD protocol layer (BMC-encoded CC signaling on the Configuration Channel lines CC1/CC2) with a software-accessible register map mapped through I2C. This hardware/software partitioning lets the TCPM run policy and source-power negotiation while the FUSB307B executes the deterministic time-budget tasks defined by the USB-IF TCPC specification, including GoodCRC timing and Hard Reset signaling.
Typical applications include notebook USB-C charging ports, docking stations with multiple Type-C sinks, tablet and 2-in-1 convertible power paths, USB-PD chargers, and smartphone fast-charge adapters. The device is well suited wherever a standardized TCPC interface is needed and the system architect already uses a discrete TCPM such as a microcontroller or an embedded controller running compliant TCPM firmware.
When designing with this part, ensure the I2C pull-ups are sized for the chosen bus speed (100 kHz Standard or 400 kHz Fast Mode) and that the CC1/CC2 lines have the appropriate Type-C Rp/Rd or pull-down/up scheme required by the desired Source/Sink role. The exposed thermal pad must be soldered to a sufficient ground copper pour to meet the package's thermal and electrical performance.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement - not duplicate - the manufacturer datasheet, helping engineers shorten the path from selection to a working USB-PD-enabled prototype.
Mga alternatibo na pwedeng ilagay na FUSB307BMPX — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok FUSB307BMPX (parehas na form factor at footprint) — pagkakaiba sa Package, Function, Host Interface, Number of Pins, USB Standard.
FUSB307BVMPX
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →FUSB307BUCX
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
FUSB302MPX
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →FUSB307BMPX Mga Spesipikasyon
| Manufacturer | onsemi |
| Part Number | FUSB307BMPX |
| Product Type | USB Type-C Port Controller (TCPC) with USB-PD |
| USB Standard | USB Type-C Rev 1.3, USB-PD Interface Specification Rev 1.0 (TCPC) |
| Supported USB Signaling | USB 3.0 |
| Host Interface | I2C (Standard / Fast Mode) |
| Number of Type-C Ports Supported | Up to 4 (when multiplexed with a TCPM) |
| Attach/Detach Detection | Manual, integrated Type-C Rev 1.3 detection |
| Hanay ng Temperature na Operasyon | -40 C to +85 C (TA) |
| Packhaging | 16-WQFN (3x3 mm) with Exposed Pad |
| Supplier Device Package | 16-WQFN (3x3) |
| Uri ng Pagpapasok | Surface Mount |
| Kategorya | USB Interface IC |
| Operating Role | TCPC (standardized interface to TCPM) |
| Configuration Channel Lines | CC1, CC2 (BMC-encoded USB-PD messaging) |
Pin Configuration ng FUSB307BMPX
| Pin 1 | CC1 — Configuration Channel line 1 - USB Type-C detect and USB-PD BMC signaling |
| Pin 2 | CC2 — Configuration Channel line 2 - USB Type-C detect and USB-PD BMC signaling |
| Pin 3 | DP1 — USB data pass-through positive (port side) |
| Pin 4 | DN1 — USB data pass-through negative (port side) |
| Pin 5 | SDA — I2C data to TCPM |
| Pin 6 | SCL — I2C clock to TCPM |
| Pin 7 | INT_H — Active-high interrupt output to TCPM |
| Pin 8 | VBUS — VBUS sense input |
| Pin 9 | VDD — Supply voltage (3.3 V typical) |
| Pin 10 | GND — Ground (digital) |
| Pin 11 | AUDIO — Audio-over-USB-C accessory detect |
| Pin 12 | DP2 — USB data pass-through positive (cable side) |
| Pin 13 | DN2 — USB data pass-through negative (cable side) |
| Pin 14 | VBUS_MON — VBUS voltage monitor for attach detection |
| Pin 15 | RESET — Active-low reset input |
| Pin 16 | EPAD — Exposed thermal pad - tie to ground |
Tipikal na mga Gamit
FUSB307BMPX ay nararapat para sa 6 aplikasyons: Notebook USB-C Charging Port, Docking Station Multi-Port Hub, Tablet and 2-in-1 Convertible Power Path, USB-PD Wall Charger Adapter, Smartphone Fast-Charge Type-C Port, USB-C Monitor and Display Hub.
Notebook USB-C Charging Port
The FUSB307BMPX is well suited to a notebook USB-C charging port because it acts as a TCPC, offloading the USB-PD protocol layer (BMC messaging on CC1/CC2, GoodCRC timing, Hard Reset sequencing) from the embedded controller. This lets the TCPM focus on policy and battery-charger coordination while the FUSB307B executes the deterministic 1 ms-typical timing tasks defined by USB-PD. The 16-WQFN (3x3) package fits the small Type-C connector footprint inside a slim chassis, and the -40 C to +85 C range handles the thermal environment between the keyboard deck and the bottom cover.
Inirekomenda
Docking Station Multi-Port Hub
In a docking station with multiple USB-C downstream ports, the FUSB307BMPX provides a low-cost standardized TCPC front end per port, with up to four ports multiplexed through a single TCPM. The integrated Type-C Rev 1.3 attach/detach detection enables manual or software-driven cable-attach events to wake the dock host without polling overhead. Compared to a fully integrated USB-PD controller per port, using a TCPC architecture with the FUSB307BMPX drops BOM cost and PCB area while keeping policy centralized in the TCPM firmware stack.
Inirekomenda
Tablet and 2-in-1 Convertible Power Path
The FUSB307BMPX fits a tablet or 2-in-1 convertible's Type-C power path because it implements the standardized TCPC interface, allowing the SoC or EC TCPM to control charging direction (sink vs source) and USB-PD contracts up to 100 W. The 16-WQFN (3x3 mm) package with exposed pad provides thermal headroom for the 3-5 V CC logic when the device enters fast-charge mode. The I2C control interface at 400 kHz Fast Mode gives the EC sufficient bandwidth for status polling during high-frequency role swap events.
Inirekomenda
USB-PD Wall Charger Adapter
A USB-PD wall charger can use the FUSB307BMPX as the TCPC front end to a small TCPM that sets the source power rule (5 V/3 A, 9 V/3 A, 15 V/3 A, or 20 V/3.25 A). The FUSB307B's autonomous BMC encoder handles the physical-layer USB-PD messaging, freeing the charger MCU to manage thermal foldback, cable compensation, and protection. The 3x3 mm QFN package saves board area inside the dense wall-wart PCB, and the exposed pad ties to a copper pour for thermal relief at 60 W and above.
Inirekomenda
Smartphone Fast-Charge Type-C Port
Smartphone fast-charge ports handling QC+PD or proprietary protocols like VOOC benefit from the FUSB307BMPX acting as a TCPC bridge between the application's TCPM firmware and the USB Type-C connector. The part's integrated Type-C Rev 1.3 attach/detach detection with manual control accelerates cable-attach latency at the OS layer, critical for 18-65 W fast-charge handshakes. The 3x3 mm WQFN keeps the BOM footprint minimal compared to discrete CC controller designs and supports the -40 C to +85 C range for outdoor or vehicle-mount use cases.
Inirekomenda
USB-C Monitor and Display Hub
The FUSB307BMPX serves as a TCPC in a USB-C monitor or display hub where the panel's USB-PD port handles alt-mode entry (DisplayPort), USB 3.0 lanes, and power negotiation in parallel. Up to four Type-C ports can be multiplexed via TCPM for downstream-facing ports on the monitor. The TCPC role is highly advantageous here because alt-mode policy requires tight coordination with the GPU/SoC, which the TCPM host running Linux/ChromeOS/Android keeps in one place; the FUSB307B just executes the standardized USB-PD protocol layer on each port.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for FUSB307BMPX — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | FUSB307BVMPX | FUSB307BUCX | FUSB302MPX |
|---|---|---|---|---|
| Brand | onsemi | onsemi | onsemi | onsemi |
| Package | 16-WQFN (3x3) | 16-WQFN (3x3) | 16-WQFN (3x3) | 16-WQFN (3x3) |
| Role | TCPC (with external TCPM) | TCPC | TCPC | Stand-alone PD Controller |
| USB-PD Spec | Rev 1.0 (TCPC) | Rev 1.0 (TCPC) | Rev 1.0 (TCPC) | Rev 2.0 / Type-C Rev 1.2 |
| Host Interface | I2C (100/400 kHz) | I2C | I2C | I2C |
| Ports per Device | 1 (up to 4 via TCPM) | 1 | 1 | 1 (no TCPM multiplex) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Pangunahing mga Pagkakaiba
- Standardized TCPC interface per USB-PD Rev 1.0 (kumpara saFUSB302MPX)
- Integrated Type-C Rev 1.3 detection (kumpara saFUSB302MPX)
- Multi-port scalability up to 4 ports (kumpara saFUSB302MPX)
Talaan ng Disenyo
Solder the WQFN-16 exposed thermal pad (pin 16 / EPAD) to a ground copper pour of at least 25 square millimeters to meet the datasheet's thermal performance and to provide a low-impedance return path for the high-frequency CC1/CC2 signals. Place the I2C pull-ups (typically 4.7 kohm to VDD) within 10 mm of the SDA/SCL pins and keep the bus traces shorter than 50 mm to avoid signal-integrity issues at 400 kHz Fast Mode.
Do not assume the FUSB307BMPX is a stand-alone USB-PD controller. It is a TCPC and requires an external TCPM that runs the policy state machine and issues commands over I2C according to the USB-IF TCPC specification. Pointing it at a generic USB-PD controller host without TCPM firmware support will not negotiate a power contract.
The CC1/CC2 lines carry BMC-encoded USB-PD messages with rise/fall times on the order of 300 ns. Keep CC1/CC2 traces short and matched within 1 mm, route them on the same layer, and avoid vias. Place the Type-C connector within 8-10 mm of the FUSB307B pins to minimize reflections and meet the USB Type-C Rev 1.3 TSEC rise/fall specifications.
VDD should be decoupled with a 1 uF ceramic capacitor placed within 2 mm of the VDD pin, plus a 0.1 uF high-frequency bypass. The FUSB307B communicates VBUS presence through its VBUS monitor pin; if your design does not connect VBUS to the monitor pin, you must disable the related interrupt in software to avoid spurious wake events.
Impormasyon ng Pagsunod sa Kautusan
RoHS and lead-free per onsemi product page. Reach and conflict-minerals compliance assumed from onsemi's standard product-line certifications; halogen-free status not explicitly stated in the provided datasheet snippets.
