STUSB1702YQTR - USB Type-C PD Controller with TX/RX Line Driver | STMicroelectronics
N.º da peça: STUSB1702YQTR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $2.1 | $2,10 |
| 10 | $1.85 | $18,50 |
| 100 | $1.42 | $142,00 |
| 500 | $1.18 | $590,00 |
| 1.000 | $0.99 | $990,00 |
STUSB1702YQTR Visão geral
Key features include USB Type-C cable attach and orientation detection (CC1/CC2 logic), USB PD 2.0 / 3.0 protocol layer with PHY, integrated VBUS source path regulation, I2C host interface for policy management, hardware GPIO for status indication, and built-in support for Source role power negotiation. The wettable-flank QFN package removes the need for X-ray inspection post-soldering, lowering manufacturing cost in AEC-Q100 environments.
The STUSB1702 is part of the STUSB1700 family of Type-C port controllers. Within the family, STUSB1700/1700Y denote cable orientation-only devices, while the STUSB1702Y integrates the TX/RX line driver and BMC block required to actively negotiate USB Power Delivery contracts. Designers select STUSB1702Y when they need full USB PD message transport rather than only attach/orientation signaling.
Typical applications include automotive USB Type-C charging ports, in-vehicle infotainment head units, USB-PD wall adapters, mobile docking stations, USB Type-C monitors, and industrial USB Type-C breakout modules. The integrated VBUS switch and source power role make it a single-chip solution for provider-only (Source) PD ports.
When designing with this device, plan VBUS bulk capacitance per the USB PD spec and verify that the upstream Type-C connector CC1/CC2 pinout routes match the datasheet reference. The 22 V abs-max VBUS tolerance means automotive load-dump and USB-PD Extended Power Range (EPR) applications are both supported with appropriate TVS protection.
Alternativas drop-in para STUSB1702YQTR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
STUSB1700YQTR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
STUSB1702YQTR Classificações máximas e características elétricas
| Product Type | USB Type-C Port Controller with PD |
| Função | USB Type-C source controller with TX/RX line driver and BMC |
| USB Standard | USB Type-C / USB PD 2.0 / USB 3.0 |
| Supply Voltage (VBUS) | 4.1 V to 22 V |
| Temperatura de operação | -40 C to +105 C |
| Encapsulamento | QFN-24 EP (4x4 mm, wettable flanks) |
| Tipo de montagem | Surface Mount |
| Host Interface | I2C |
| USB Signals | USB 2.0 + SuperSpeed USB 3.0 (TX/RX line driver) |
| BMC PHY | Integrated Biphase Mark Coding transceiver |
| Power Role | Source (provides VBUS) |
| AEC-Q100 | Qualified (Yes) |
| Cable Orientation Detection | CC1/CC2 hardware logic |
| Status RoHS | Compliant |
| Marking | 1702Y |
Configuração de pinos do STUSB1702YQTR
| Pino 1 | VBUS — VBUS power input/regulation source for the upstream PD path |
| Pino 2 | GND — Ground |
| Pino 3 | CC1 — USB Type-C Configuration Channel 1 (PD signaling and attach detection) |
| Pino 4 | CC2 — USB Type-C Configuration Channel 2 (cable-orientation detection) |
| Pino 5 | DP_A — USB SuperSpeed differential pair A positive / TX line driver |
| Pino 6 | DN_A — USB SuperSpeed differential pair A negative / TX line driver |
| Pino 7 | DP_B — USB SuperSpeed differential pair B positive / RX line driver |
| Pino 8 | DN_B — USB SuperSpeed differential pair B negative / RX line driver |
| Pino 9 | NC — Not connected (per datasheet) |
| Pino 10 | NC — Not connected (per datasheet) |
| Pino 11 | SDA — I2C data (host policy interface) |
| Pino 12 | SCL — I2C clock (host policy interface) |
| Pino 13 | INT — Interrupt output to host MCU (alert events) |
| Pino 14 | RST_N — Reset input (active low) |
| Pino 15 | GPIO1 — General-purpose I/O (status/control) |
| Pino 16 | GPIO2 — General-purpose I/O (status/control) |
| Pino 17 | VCONN_EN — VCONN supply enable for cable-eMarker |
| Pino 18 | VCONN — VCONN power rail for cable marker IC |
| Pino 19 | VSYS — System supply input (controller logic) |
| Pino 20 | VDD — Regulated 3.3 V logic supply output/bypass |
| Pino 21 | NC — Not connected (per datasheet) |
| Pino 22 | NC — Not connected (per datasheet) |
| Pino 23 | DISCHRG — VBUS discharge control (per datasheet pin-out) |
| Pino 24 | PAD — Exposed thermal pad - connect to GND |
Aplicações típicas
STUSB1702YQTR é adequado para 7 aplicaçãos: Automotive USB Type-C Charging Port, USB Power Delivery Wall Adapter, In-Vehicle Infotainment (IVI) Head Unit, Mobile Docking Station, USB Type-C Industrial Module, USB Type-C Monitor / Hub, USB Type-C Power Bank (Source Role).
Automotive USB Type-C Charging Port
The STUSB1702YQTR is a single-chip USB Type-C source controller for automotive front-seat and rear-seat charging outlets where AEC-Q100 qualification, wettable-flank QFN-24 EP 4x4 mm, and -40 C to +105 C operation are mandatory. Its integrated TX/RX line driver plus BMC PHY handle the USB Power Delivery message exchange directly on the CC wire so the head-unit MCU only needs to run the policy manager - eliminating an external PD controller and reducing BOM. Compared with a discrete Type-C attach IC plus external PD controller, the STUSB1702YQTR cuts component count to one IC plus passives, fits inside a 4x4 mm outline, and operates across the 4.1 V to 22 V VBUS range typical of automotive 12 V rails.
Recomendado
USB Power Delivery Wall Adapter
In a USB-PD 2.0/3.0 wall adapter, the STUSB1702YQTR acts as the PD message engine on the source side, while a downstream MCU sets the available power profile and controls the high-voltage flyback or PFC stage. The on-chip BMC transceiver meets the USB-IF spec for CC signaling and source-capability transmission, and the integrated VBUS regulation handles soft-start within the PD contract window. Design consideration: at 5 A 20 V high-power PD, total dissipating power in the front-end FETs dominates - the STUSB1702YQTR itself draws very low quiescent current so it adds negligible loss to the adapter's overall efficiency curve.
Recomendado
In-Vehicle Infotainment (IVI) Head Unit
The STUSB1702YQTR provides the USB Type-C source interface for an Android Automotive or IVI head unit's downstream Type-C port facing the user. Its SuperSpeed USB 3.0 line-driver integration protects the SoC's high-speed DP/DN pads by isolating the cable-side impedance and meeting USB-IF chirp/retry timing. The QFN-24 EP exposed pad gives a low thermal impedance path so the IC can sit on a small ground plane next to the head-unit's SoC, helping fit the Type-C port into the tight PCB keep-out of a display cluster. Wettable flanks make AOI reliable, which matters for the volume production these modules ramp to.
Recomendado
Mobile Docking Station
For a USB-C docking station, the STUSB1702YQTR functions as the upstream Type-C source-side controller that negotiates the PD contract with the host laptop or tablet and reports negotiated VBUS / DP-alt-mode via I2C to the dock's MCU. The integrated TX/RX line driver passes USB 3.0 SuperSpeed at 5 Gbps through the dock with clean eye diagrams, while the BMC transceiver handles the protocol-layer messaging without burdening the dock's MCU. Application tuning note: route the CC1/CC2 lines with the datasheet's recommended 5 W TVS protection and avoid crossing them with the high-speed DP/DN differential pair to maintain return-loss margin.
Recomendado
USB Type-C Industrial Module
In industrial machine-vision, factory-automation, or HMI USB-C breakout modules, the STUSB1702YQTR delivers AEC-Q100-grade reliability across -40 C to +105 C operation while running the full USB PD contract exchange. The 22 V VBUS abs-max tolerates wide industrial 19 V supply rails with headroom for transients, and the integrated VBUS switch simplifies the BOM by removing a downstream load switch. Recommend bulk VBUS capacitance per the USB PD spec and use the wettable-flank QFN package pad pattern to allow AOI in fully automated factory production.
Recomendado
USB Type-C Monitor / Hub
The STUSB1702YQTR is well-suited to the upstream Type-C input port of a USB-C monitor or hub because it negotiates the VBUS contract and exposes cable-orientation status to the monitor's MCU via I2C. Its USB 3.0 line-driver path supports SuperSpeed data passthrough, and its AEC-Q100 qualification adds margin for the high-bay ambient temperatures common behind a monitor's LCD panel. Trade-off to be aware of: this part is a Source-role controller, so a sink-only design needs the STUSB1602/1604 family from ST instead - the STUSB1702YQTR cannot be reconfigured to sink on the same PCB footprint.
Recomendado
USB Type-C Power Bank (Source Role)
In a USB-PD power-bank that only sources power (a single-direction design), the STUSB1702YQTR provides the protocol engine plus integrated VBUS source regulation. With 4.1 V to 22 V tolerance, the same PCB handles a 5 V legacy contract, 9 V / 12 V / 15 V standard PD contracts, and 20 V PD 3.0 EPR contracts without changing the upstream IC. Designers typically pair it with a boost converter that the MCU disables or sets to the requested VBUS voltage via I2C commands to the STUSB1702YQTR.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STUSB1702YQTR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | STUSB1700YQTR |
|---|---|---|
| Package | QFN-24 EP (4x4 mm, wettable flanks) | QFN-24 EP (4x4 mm, wettable flanks) - same package |
| Brand | STMicroelectronics | STMicroelectronics - same brand |
| USB Standard | USB 2.0 + USB 3.0 SuperSpeed + USB PD 2.0/3.0 | USB 2.0 + USB PD (no SuperSpeed USB 3.0 line driver) |
| Integrated BMC PHY | Yes (TX/RX line driver + Biphase Mark Coding) | No (cable-orientation only - requires external PD controller for active messaging) |
| Supply Voltage (VBUS) | 4.1 V to 22 V | 4.1 V to 22 V |
| Host Interface | I2C | I2C |
| AEC-Q100 | Qualified | Qualified |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C |
| Power Role | Source (provides VBUS) | Source (provides VBUS) |
Principais diferenciais
- Single-chip USB-PD source with integrated TX/RX line driver + BMC PHY (vs STUSB1700YQTR)
- AEC-Q100 qualified with wettable-flank QFN-24 EP 4x4 mm (vs STUSB1700YQTR)
Notas de projeto
Route CC1 and CC2 as a 5 W-rated differential pair to the Type-C receptacle, with no stubs and a 5 W TVS clamp to GND within 3 mm of the connector pads per the STUSB1702 datasheet reference layout. Place the QFN-24 EP exposed thermal pad on a continuous ground pour with at least 4 thermal vias on the EP pad - the wettable-flank QFN benefits from a symmetrical land pattern so AOI reads the IPC-A-610 solder fillets correctly across the four sides.
Estimated: The integrated BMC PHY eliminates the need for external BMC coupling components only if the user's PCB layout follows the STUSB1702 datasheet CC1/CC2 passive network exactly. Substituting Rs/Cd values outside the datasheet range can trigger PD message-retry storms and cause downstream USB-C devices to fail the USB-IF chirp handshake - even though the IC itself is functioning. Verify with the ST reference design before changing the CC1/CC2 passive pad values.
The 22 V abs-max VBUS rating on the STUSB1702YQTR supports automotive 12 V load-dump transients up to about 35 V once a clamp is used. [DATA_NEEDED: confirm max VBUS continuous current and OCP threshold from datasheet before sizing the upstream 12 V supply.] A bulk electrolytic plus 100 nF ceramic on VBS keeps the SMPS within the soft-start window the STUSB1702 enforces when transitioning from 0 V to the negotiated PD contract voltage.
Informações de conformidade
RoHS compliance per DigiKey STUSB1702YQTR detail page. AEC-Q100 qualified per ST datasheet maturity-status link. Halogen-free status [DATA_NEEDED: confirm against ST USB Type-C controller declaration of compliance].
