STUSB4500LBJR - USB Type-C Sink PD Controller, 25-WLCSP | ST
MPN: STUSB4500LBJR ✓ Hoạt độngSTUSB4500LBJR Tóm tắt
A USB Type-C controller (sometimes called a USB-C port controller or PD controller) is the interface IC that sits between the CC (configuration channel) pins of a USB-C receptacle and the system power management. It detects cable attach/orientation, decodes USB Power Delivery messages on CC, advertises the sink's power profile to the source, and asserts/enables downstream rails. In the system hierarchy it belongs to USB interface ICs, which sit above USB 2.0 PHYs and below the application processor or discrete buck regulator that it ultimately enables.
Key features of the STUSB4500LBJR include dual-role-power support, integrated VBUS voltage monitoring with internal discharge path, hardware-controlled power-request profiles stored in internal NVM (loadable via I2C), over-voltage protection (OVP), over-current protection (OCP), and a dedicated DEBUG-accessory detection mode exposed on a GPIO. The device supports both Source and Sink PDO/RDO messaging and includes built-in support for USB Type-C 1.3 and USB PD 2.0 revision 2.0. Operating supply range is 3.0 V to 5.5 V on VDD, with VBUS tolerated up to 22 V for transient robustness.
Typical applications include USB-C wall-sink adapters for tablets and notebooks, battery-charging docks, powered speaker cradles, USB-C hub sink paths, and any 5 V / 9 V / 15 V / 20 V powered device that needs to negotiate higher power than the legacy 5 V default. Designers using this part benefit from removing a full MCU for PD protocol handling, while still being able to override profiles over I2C during development.
When laying out the STUSB4500LBJR, place the 25-WLCSP balls on a small breakout with careful via-in-pad routing for the CC1/CC2 lines, since CC is a high-impedance signal; keep the I2C pull-ups close to the STUSB4500LBJR side. Add an external TVS diode on VBUS and CC for surge robustness in field-deployed products, and confirm your bulk capacitance on VBUS matches the inrush profile specified in the datasheet typical-application circuit.
Bộ thay thế dễ dàng lắp đặt cho STUSB4500LBJR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STUSB4500LBJR (cùng hình factor và footprint) — khác nhau ở Package, Mounting Type, Host Interface, Interface, Product Type.
STUSB4500QTR
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Xem tài liệu →STUSB4500BJR
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STUSB4500LBJR Thông số kỹ thuật
| Product Type | Standalone USB Type-C sink port controller (USB PD 2.0) |
| Giao diện | USB Type-C, USB 2.0 with I2C control |
| PD Role Supported | Sink (L variant, 5 V-only negotiated) |
| Maximum Negotiated Power | 100 W (20 V / 5 A) |
| Default Profile | 5 V legacy up to 3 A |
| Supply Voltage VDD | 3.0 V to 5.5 V |
| Dead Battery Mode | Supported |
| Host Interface | I2C (config + telemetry) |
| Cable Orientation Detection | Yes (CC1/CC2) |
| Debug Accessory Detection | Yes (advertised on GPIO) |
| OVP / OCP | Integrated VBUS OVP and OCP |
| NVM for Profiles | Internal NVM, I2C loadable |
| Hộp | 25-WLCSP, 2.59 x 2.59 mm |
| Kiểu lắp đặt | Surface Mount (WLCSP) |
| Trạng thái RoHS | Compliant |
Cấu hình chân STUSB4500LBJR
| Chân A1 | CC1 — USB-C Configuration Channel 1 |
| Chân A2 | CC2 — USB-C Configuration Channel 2 |
| Chân A3 | GND — Ground |
| Chân A4 | VBUS — VBUS supply / monitor |
| Chân A5 | VDD — Digital supply 3.0-5.5 V |
| Chân B1 | NC — Not connected (per datasheet) |
| Chân B2 | DBG_OUT — Debug accessory detection GPIO |
| Chân B3 | GND — Ground |
| Chân B4 | SDA — I2C data |
| Chân B5 | SCL — I2C clock |
| Chân C1 | NC — Not connected (per datasheet) |
| Chân C2 | RESET — Reset (active-low) |
| Chân C3 | GND — Ground |
| Chân C4 | INT — Interrupt output (active-low) |
| Chân C5 | GPIO — General-purpose I/O |
| Chân D1 | NC — Not connected (per datasheet) |
| Chân D2 | NC — Not connected (per datasheet) |
| Chân D3 | GND — Ground |
| Chân D4 | NC — Not connected (per datasheet) |
| Chân D5 | NC — Not connected (per datasheet) |
| Chân E1 | VBUS_DISCH — VBUS discharge path enable |
| Chân E2 | NC — Not connected (per datasheet) |
| Chân E3 | GND — Ground |
| Chân E4 | NC — Not connected (per datasheet) |
| Chân E5 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
STUSB4500LBJR phù hợp cho 7 Áp dụngs: USB-C Wall-Sink Power Adapter, Charging Dock / Cradle for Portable Devices, USB-C Powered Speaker / Audio Accessory, Industrial USB-C Powered Sensor / Module, USB-C Hub Downstream-Port Sink Path, USB-C Dongle / Powered Cable Accessory, Test & Development USB-C Power Sink Fixture.
USB-C Wall-Sink Power Adapter
The STUSB4500LBJR fits USB-C 5 V wall-sink adapters because its L-suffix profile targets 5 V / up to 3 A sink operation (15 W) with dead-battery support, allowing the adapter PCB to power up directly from VBUS before the host MCU loads any NVM profile. The integrated VBUS OVP and OCP reduce external component count by replacing discrete TVS+fuse+congregate supervisor chains. The 25-WLCSP package drops into the small PCB area behind a USB-C receptacle, and the I2C interface lets the host MCU override or read the negotiated PD profile at runtime. Designers can pair the STUSB4500LBJR with a downstream buck regulator to deliver a clean 5 V rail at 3 A continuous.
Được đề xuất
Charging Dock / Cradle for Portable Devices
In a charging dock or cradle, the STUSB4500LBJR acts as the USB-C sink that negotiates 5 V from the upstream charger and asserts an enable line to the cradle's charging circuit. Its dead-battery support means the dock electronics can boot even when the battery in the cradled product is fully depleted, which is critical for first-touch user experience. The 25-WLCSP 2.59 x 2.59 mm form factor sits comfortably inside a docking-station USB-C receptacle footprint. OVP/OCP on VBUS protect the cradle electronics from a misbehaving source, and the I2C interface exposes real-time voltage and current telemetry for status-LED indication.
Được đề xuất
USB-C Powered Speaker / Audio Accessory
Powered speakers, headphones amplifiers, and USB-C microphones benefit from the STUSB4500LBJR's compact WLCSP-25 footprint, which slips behind the USB-C jack without enlarging the industrial design. The L-suffix 5 V / 3 A capability is well-matched to a Class-D amplifier that needs a clean 5 V rail at moderate current, and the integrated OVP eliminates an external TVS for cost-down designs. CC1/CC2 cable-orientation detection means the accessory works regardless of which way the USB-C plug is inserted. The I2C bus also lets the DSP read PD contract data for status-LED or app-display feedback.
Được đề xuất
Industrial USB-C Powered Sensor / Module
Industrial sensor modules that take power over USB-C benefit from the STUSB4500LBJR's wide 3.0-5.5 V VDD tolerance, robust CC detection, and dead-battery mode that allows the module to come up even with no firmware loaded. The integrated VBUS OVP/OCP protects against the transients common on industrial factory USB ports, while the WLCSP-25 package keeps the BOM small. The I2C telemetry gives the host SoC visibility into negotiated voltage and current for diagnostics and field-service logging. Industrial designers appreciate that the same part can be used across 5 V, 9 V, and 20 V source profiles by simply reloading NVM.
Được đề xuất
USB-C Hub Downstream-Port Sink Path
In a USB-C hub, the STUSB4500LBJR can be deployed on a downstream-facing port that needs to behave as a sink for diagnostic dongles or legacy 5 V accessories. Its small 25-WLCSP footprint means the hub designer can place multiple instances without crowding the PCB, one per port. Dead-battery support ensures the hub can enumerate the downstream device even if the hub's main MCU is still booting, and the integrated OVP/OCP helps protect the hub's internal 5 V rail from shorted cables. I2C address assignment per port allows the host MCU to monitor each port's contract independently.
Được đề xuất
USB-C Dongle / Powered Cable Accessory
Dongles such as USB-C to HDMI, USB-C to Ethernet, or USB-C to legacy-USB adapters often need 5 V / up to 3 A from the host and benefit from the STUSB4500LBJR's compact 25-WLCSP package and integrated protection. The L-suffix variant specifically targets these 5 V sink use cases where the dongle does not need to negotiate higher PD voltages, simplifying the BOM and avoiding the larger NVM of the full STUSB4500. Dead-battery support is rarely needed; what matters here is CC detection and a clean 5 V rail, both of which the STUSB4500LBJR delivers in a tiny package.
Được đề xuất
Test & Development USB-C Power Sink Fixture
A USB-C power sink fixture used in QA labs or design validation rigs benefits from the STUSB4500LBJR's I2C-controlled profile loading, which lets engineers quickly re-configure the fixture to request 5 V / 9 V / 15 V / 20 V PDOs without changing the BOM. The WLCSP-25 package fits on a small evaluation PCB, and dead-battery support means the fixture can attach to a powered-off source for cold-start testing. Telemetry on the I2C bus simplifies automated test scripts, and the integrated OVP/OCP protects instrumentation in case of a misconfigured test scenario.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STUSB4500LBJR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STUSB4500QTR | STUSB4500BJR |
|---|---|---|---|
| Package | 25-WLCSP (2.59x2.59 mm) | 25-WLCSP (2.59x2.59) - same | 25-WLCSP (2.59x2.59) - same |
| Brand | STMicroelectronics | STMicroelectronics - same | STMicroelectronics - same |
| PD Role | Sink (L, 5 V legacy up to 3 A) | Sink (full PD 2.0, up to 100 W) | Sink (full PD 2.0, up to 100 W) |
| Maximum Power | 15 W (5 V / 3 A) | 100 W (20 V / 5 A) | 100 W (20 V / 5 A) |
| Dead Battery Mode | Yes | Yes | Yes |
| Host Interface | I2C | I2C | I2C |
| Integrated OVP/OCP | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Compact 25-WLCSP for tiny USB-C receptacles (vsSTUSB4500QTR (QFN-24 package variant))
- L-suffix profile locked to 5 V / 3 A (vsSTUSB4500BJR (full PD 2.0 variant))
- Dead-battery mode integrated (vsDiscrete CC logic + host MCU PD stack)
Ghi chú thiết kế
The 25-WLCSP package (2.59 x 2.59 mm) requires via-in-pad PCB design for all 25 balls. Place CC1 and CC2 on a short, symmetrical trace pair with 5-10 kohm pull-downs as required by the USB-C spec; keep them away from VBUS switching nodes to avoid CC coupling. Use a 4-layer stackup with a continuous ground plane beneath the WLCSP for thermal spreading and signal integrity.
Add an external TVS diode (e.g., SMAJ5.0A or PESD5V0L1BA) on VBUS close to the connector, even though the STUSB4500LBJR has integrated OVP. The internal OVP threshold is intended for IC self-protection and may not survive industrial surge tests (IEC 61000-4-5) without an external clamp. Bulk capacitance on VBUS must match the inrush envelope in the typical-application circuit to avoid nuisance OCP trips during attach.
Do not load NVM profiles with a 20 V PDO if your downstream circuit is only rated for 5 V - the controller will faithfully request 20 V on attach. For 5 V-only products, program the NVM with a 5 V / 3 A sink PDO only, or use the L-suffix default profile. Always verify the loaded profile by reading the active RDO over I2C after every NVM update.
The I2C bus on SDA/SCL should use 4.7 kohm pull-ups to VDD (3.3 V typical) and be kept short, under 50 mm if possible. Add a 100 nF decoupling cap on VDD adjacent to ball A5, and a 4.7 uF bulk cap on VBUS near ball A4. The RESET (active-low) ball should be tied to VDD through a 100 kohm pull-up if not driven by the host MCU, to avoid spurious resets during hot-plug.
Thông tin tuân thủ
RoHS and REACH compliance per ST product page. Not AEC-Q100 qualified - automotive designs should verify with ST automotive-grade options.
