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STMicroelectronics STUSB4500BJR
- Part No.:
- STUSB4500BJR
- Manufacturer:
- STMicroelectronics
- Category:
- Controllers
- Package:
- 25-UFBGA, WLCSP
- Datasheet:
-
STUSB4500BJR.pdf
- Description:
- STAND-ALONE USB PD CONTROLLER (W
- Quantity:
- Payment:
- Shipping:
Inventory:2,245
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Product details
Overview
STUSB4500BJR from STMicroelectronics is a standalone USB Type-C™ and Power Delivery (PD) sink controller IC implementing auto-run mode for autonomous 100 W (20 V / 5 A) power contract negotiation without MCU support. It integrates non-volatile memory for configurable sink PDO profiles, supports dead battery mode, and features high-voltage CC pin protection up to 22 V and VBUS tolerance up to 28 V - deployed in IoT edge devices and portable medical equipment requiring reliable high-power USB-C charging.
For engineers reviewing the STUSB4500BJR datasheet, STUSB4500BJR pinout, STUSB4500BJR application, or STUSB4500BJR equivalent, this device delivers verified USB PD rev 2.0 compliance (TID #1000133), dual high-power charging path control, integrated VBUS switch gate drivers, and short-to-VBUS protection critical for robust sink-side power management in battery-powered systems.
Technical Context
The STUSB4500BJR implements a hardware-based policy engine with proprietary decision algorithm that autonomously negotiates USB PD contracts by comparing up to three pre-programmed sink PDOs against source capabilities - prioritizing highest-voltage match first, then current. It operates across dual supply rails (VSYS: 3.0–5.5 V; VDD: 4.1–22 V) and manages attachment detection, cable orientation (A/B side), and debug accessory mode via dedicated pins.
Its physical layer handles BMC-encoded PD messaging over CC1/CC2 with built-in CRC validation and SOP/EOP detection, while the protocol layer manages retry counters, GoodCRC handling, and message scheduling. Hardware fault management includes short-to-VBUS protection on CC pins, thermal monitoring, and programmable discharge timing for VBUS_VS_DISCH and DISCH pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | USB Type-C™ rev 1.2 & USB PD rev 2.0 (TID #1000133); interoperable with PD rev 3.0 |
| Max Sink Power | 100 W (20 V / 5 A) via three configurable PDO profiles stored in NVM |
| VBUS Tolerance | 28 V absolute max on VBUS pins - enables direct connection to high-voltage USB-C power paths |
| CC Pin Protection | Short-to-VBUS withstand up to 22 V - prevents latch-up during hot-plug or fault conditions |
| Supply Range | Dual rail: VSYS = 3.0–5.5 V (system bias); VDD = 4.1–22 V (VBUS-derived) |
| Operating Temp | −40 °C to +105 °C - qualified for industrial and portable medical environments |
| ESD Rating | 3 kV HBM / 1.5 kV CDM - meets IEC 61000-4-2 Level 3 for system-level robustness |
Pinout & Package
STUSB4500BJR is packaged in WLCSP-25 (2.6 × 2.6 × 0.5 mm), optimized for space-constrained portable designs. The package exposes 25 solder bumps with defined electrical roles per pin position.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1 / CC2 | Configuration Channel I/O | Bi-directional analog interface for USB-C attach detection, orientation sensing, and PD messaging (BMC) |
| CC1DB / CC2DB | Dead Battery Enable | Activates pull-down terminations on CC pins during zero-bias condition - enables source detection with dead battery |
| VBUS_EN_SNK | High-Voltage Gate Driver Output | Active-low open-drain output driving external PMOS to enable VBUS power path; rated for 28 V |
| POWER_OK2 / POWER_OK3 | Power Contract Status Flags | Open-drain outputs indicating negotiated PDO status (e.g., PDO2 or PDO3 active); POWER_OK2 supports HV drive |
| DISCH / VBUS_VS_DISCH | VBUS Discharge Control | Configurable internal/external discharge path activation - programmable timing for safe VBUS ramp-down on detach |
| A_B_SIDE | Cable Orientation Indicator | Active-low output selecting USB SuperSpeed MUX routing; Hi-Z = CC1 attached, 0 = CC2 attached |
| ATTACH | Connection Detection Flag | Asserts low when valid source-to-sink connection established or debug accessory detected |
| RESET | Asynchronous Reset Input | Active-high reset pin - initiates full state machine reinitialization including NVM reload |
Key Features
| Feature | Design Value |
|---|---|
| Auto-run PD Negotiation | Hardware-only sink contract negotiation using NVM-stored PDOs - eliminates MCU dependency and firmware overhead |
| Dead Battery Mode Support | CC line pull-downs enabled at zero system voltage via CC1DB/CC2DB - allows boot from fully discharged battery |
| Dual Charging Path Control | Independent VBUS_EN_SNK and POWER_OKx signaling enables parallel high-power charging architectures (e.g., main + auxiliary battery) |
| Programmable Discharge Timing | NVM-configurable discharge duration on DISCH and VBUS_VS_DISCH - ensures safe VBUS decay per system capacitance |
| I²C Configurable GPIO | Four-mode GPIO (SW_CTRL, ERROR_RECOVERY, DEBUG, SINK_POWER) - enables flexible system-level fault reporting and status signaling |
Applications
| Portable Medical Devices | Industrial IoT Sensors |
|---|---|
|
Use Scenario: Handheld ultrasound probe powered via USB-C from docking station with dead battery recovery. IC Role / Device Role / Timing Role: USB PD sink controller managing 20 V / 3 A contract, enabling fast recharge while maintaining real-time data streaming capability. Use Value: Dead battery mode ensures immediate power-up from 0 V; short-to-VBUS protection prevents damage during field cable swaps. |
Use Scenario: Battery-powered environmental sensor node deployed in remote locations, recharged weekly via USB-C solar dock. IC Role / Device Role / Timing Role: Autonomous PD negotiation selects optimal 15 V / 2 A profile to minimize charge time without MCU intervention. Use Value: Dual supply (VSYS + VDD) allows operation during VBUS transient; −40 °C to +105 °C rating ensures outdoor reliability. |
| POS Terminals | Gaming Accessories |
|
Use Scenario: Compact retail POS terminal with integrated barcode scanner and thermal printer, charged via single USB-C port. IC Role / Device Role / Timing Role: Manages simultaneous 5 V / 3 A (for logic) and 20 V / 2 A (for printer) power paths using POWER_OK2/POWER_OK3 flags. Use Value: Dual high-power charging path support enables independent power domain control - avoids brownout during print bursts. |
Use Scenario: RGB-lit gaming headset with active noise cancellation, recharged overnight via USB-C wall adapter. IC Role / Device Role / Timing Role: Negotiates 9 V / 3 A PDO for efficient Li-ion charging while maintaining USB 2.0 audio data integrity. Use Value: A_B_SIDE pin directs USB data routing automatically; ESD rating protects against user-handling transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB PD sink controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TUSB320LAIR | USB Type-C port controller only - no PD negotiation; requires external MCU for PD stack | Limited to 5 V / 3 A default USB power; no dead battery mode or NVM-configurable PDOs | Select when PD functionality is handled externally and cost sensitivity outweighs autonomy needs |
| Renesas UPD350A | PD 3.0-compliant sink controller with firmware-upgradable NVM; supports PPS and variable voltage | Requires external flash and bootloader; larger QFN-40 package vs. WLCSP-25 footprint | Select when future-proofing for Programmable Power Supply (PPS) or field firmware updates is required |
Compared with TUSB320LAIR and UPD350A, the STUSB4500BJR uniquely delivers plug-and-play 100 W PD negotiation in a 2.6 mm² WLCSP without MCU or external memory - ideal for cost- and size-constrained battery-powered sinks where deterministic startup and dead battery recovery are mandatory.
Availability
STUSB4500BJR is available at Aetrix Electronics and suitable for portable medical devices, industrial IoT sensors, POS terminals, and gaming accessories requiring stable component supply, automotive-grade temperature resilience, and certified USB PD compliance.
Supply support for STUSB4500BJR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in microcontrollers, power management, and analog/mixed-signal ICs for industrial, automotive, and consumer markets.
The STUSB4500 belongs to ST's USB Type-C & Power Delivery controller product line, designed specifically for autonomous, MCU-free sink applications demanding robust dead battery operation, compact packaging, and full USB-IF certification.
FAQ
What is the role of the CC1DB and CC2DB pins?
CC1DB and CC2DB enable dead battery mode by activating internal pull-down resistors on CC1 and CC2 pins even when the device has no supply voltage. When connected to their respective CC pins, they ensure the USB-C source detects the sink immediately upon cable insertion - critical for systems booting from 0 V battery state. If dead battery mode is unused, both pins must be grounded.
How does the STUSB4500BJR handle multiple PDO negotiations?
The STUSB4500BJR uses a priority-based hardware decision algorithm: it compares received source PDOs against its three NVM-stored sink PDOs starting from PDO3 (highest priority). A match requires identical voltage and sink current ≤ source current. Upon first match, it sends an RDO and waits for PS_READY - no software or MCU involvement is needed at any stage of negotiation.
Can the STUSB4500BJR support USB PD 3.0 features like PPS?
No - the STUSB4500BJR is certified for USB PD rev 2.0 (TID #1000133) and implements fixed-voltage PDO negotiation only. It does not support Programmable Power Supply (PPS), Fast Role Swap (FRS), or extended messages defined in PD 3.0. Its auto-run architecture is optimized for deterministic, low-latency 20 V / 5 A contracts without firmware complexity.
What is the function of the VBUS_VS_DISCH pin beyond voltage monitoring?
VBUS_VS_DISCH serves as both a VBUS presence monitor and a controlled discharge path: it senses VBUS voltage level for state transitions and - when configured with an external series resistor - actively discharges the receptacle-side VBUS capacitance during cable detachment or PDO downshift. Its maximum discharge current is 50 mA, and timing is programmable via NVM to match system capacitance requirements.
STUSB4500BJR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 25-UFBGA, WLCSP
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Controller
- Interface:
- I2C
- Standards:
- USB 2.0, USB 3.0
- Voltage - Supply:
- 4.1V ~ 22V
- Current - Supply:
- 210µA
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Supplier Device Package:
- 25-WLCSP (2.59x2.59)
- Grade:
- -
- Qualification:
- -
STUSB4500BJR FAQ
1.How can I place an order for STUSB4500BJR through Aetrix?
Please submit a Request for Quotation (RFQ) for STUSB4500BJR 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 STUSB4500BJR reliable?
The price and inventory of STUSB4500BJR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STUSB4500BJR is usually 5 days.
3.What payment methods are accepted for STUSB4500BJR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STUSB4500BJR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STUSB4500BJR?
STUSB4500BJR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STUSB4500BJR 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 STUSB4500BJR?
For technical support, including STUSB4500BJR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STUSB4500BJR requirements.
6.How does Aetrix verify that STUSB4500BJR is sourced from the original manufacturer or authorized distributors?
All STUSB4500BJR 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 STUSB4500BJR meets industry standards.
7.What is the process for return or replacement of STUSB4500BJR?
All STUSB4500BJR units undergo pre-shipment inspection (PSI). If there is an issue with STUSB4500BJR, 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 STUSB4500BJR part is unused and in its original packaging.
Return procedure for STUSB4500BJR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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