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STMicroelectronics STUSB4500QTR
- Part No.:
- STUSB4500QTR
- Manufacturer:
- STMicroelectronics
- Category:
- Controllers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
STUSB4500QTR.pdf
- Description:
- IC USB CONTROLLER I2C 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:10,378
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Product details
Overview
STUSB4500QTR 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 intervention. It integrates non-volatile memory for up to three configurable sink PDOs, supports dead battery mode, and features dual high-power charging path control with integrated PMOS gate drivers and 28 V-rated VBUS pins.
For engineers reviewing the STUSB4500QTR datasheet, STUSB4500QTR pinout, STUSB4500QTR application, or STUSB4500QTR equivalent, key selection criteria include its 22 V short-to-VBUS protection on CC pins, dual supply operation (VSYS: 3.0–5.5 V; VDD: 4.1–22 V), -40 °C to 105 °C industrial temperature range, and USB PD 2.0 certification (TID #1000133).
Technical Context
The STUSB4500QTR implements a hardware-based policy engine with proprietary decision algorithm that autonomously negotiates PD contracts by comparing up to three NVM-programmed sink PDOs against source capabilities-prioritizing highest-voltage match first, then current. It handles full Type-C attach detection, cable orientation (A/B-side output), debug accessory mode, and USB 2.0/SS MUX control signaling.
Its physical layer supports BMC-encoded PD messaging over CC1/CC2, with integrated VBUS voltage monitoring (VBUS_VS_DISCH), programmable internal/external discharge paths, and high-voltage open-drain outputs (POWER_OK2, VBUS_EN_SNK) capable of directly driving PMOS switches. All protections-including 22 V CC short-to-VBUS tolerance and 3 kV HBM ESD-are silicon-verified per USB-IF compliance test reports.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Sink Power | 100 W (20 V / 5 A) - enables full USB PD 2.0 compliance for high-power portable devices |
| Operating Voltage Range | VDD: 4.1–22 V; VSYS: 3.0–5.5 V - supports dual-supply flexibility for battery-backed or VBUS-powered systems |
| CC Pin Protection | 22 V short-to-VBUS tolerance - prevents latch-up or damage during accidental VBUS shorts to CC lines |
| VBUS Pin Rating | 28 V absolute max - allows direct connection to VBUS power path without external level-shifting |
| Temperature Range | -40 °C to +105 °C - qualified for industrial and extended-temperature embedded applications |
| USB Certification | USB Type-C™ rev 1.2 & USB PD rev 2.0 (TID #1000133) - ensures interoperability with certified sources |
| ESD Robustness | 3 kV HBM, 1.5 kV CDM - meets IEC 61000-4-2 system-level immunity requirements |
Pinout & Package
STUSB4500QTR is packaged in QFN-24 EP (4 mm × 4 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are validated per DS12499 Rev 8 (pages 3–9). All pins support high-voltage operation where marked (HV), and open-drain outputs require external pull-ups.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1 / CC2 | Configuration Channel Interface | Bi-directional HV analog I/O for USB Type-C plug detection, orientation sensing, and PD BMC communication |
| VBUS_EN_SNK | VBUS Power Path Enable | High-voltage open-drain output driving PMOS switch to enable/disable VBUS power delivery path |
| POWER_OK2 / POWER_OK3 | Power Contract Status Flags | Active-low open-drain outputs indicating negotiated PDO status (POWER_OK2 = HV; POWER_OK3 = LV) |
| DISCH | VBUS Discharge Control | Configurable as input (internal 50 mA discharge) or output (external discharge switch control) |
| A_B_SIDE | Cable Orientation Indicator | Active-low output selecting USB SuperSpeed MUX routing based on CC line attachment |
| ATTACH | Connection Detection Flag | Asserts low upon valid source-to-sink connection or debug accessory detection |
| RESET | System Reset Input | Active-high digital input resetting internal state machines and policy engine |
| SCL / SDA / ALERT | I²C Slave Interface | Standard I²C bus with interrupt-driven alert; ADDR0/ADDR1 set slave address (default 0x2A) |
Key Features
| Feature | Design Value |
|---|---|
| Auto-run PD negotiation | Hardware-implemented decision algorithm negotiates 100 W contracts without MCU firmware or host processor involvement |
| Dead battery mode support | CC1DB/CC2DB pins enable pull-down terminations at power-up, allowing system boot from 0 V battery state |
| Dual high-power charging paths | Independent POWER_OK2/POWER_OK3 outputs enable separate control of primary and auxiliary charging rails |
| Programmable sink PDO profiles | Three NVM-stored PDOs (PDO1 fixed at 5 V; PDO2/PDO3 programmable 5–20 V / 0.5–5 A) allow application-specific power policies |
| Integrated VBUS monitoring & discharge | VBUS_VS_DISCH pin provides real-time VBUS sensing and controlled discharge (50 mA internal, scalable externally) |
Applications
| Industrial Handheld Devices | Healthcare Monitoring Equipment |
|---|---|
|
Use Scenario: Portable ultrasound or ECG units requiring rapid recharge from USB-C PD adapters while operating from deeply discharged batteries. IC Role / Device Role / Timing Role: Autonomous sink controller managing VBUS enable, PDO negotiation, and dead battery wake-up without host CPU intervention. Use Value: Enables >5 W charging from cold start and maintains 20 V/3 A operation during clinical use-meeting IEC 60601-1 leakage and isolation requirements via isolated gate drive capability. |
Use Scenario: Battery-powered infusion pumps needing reliable 15–20 V charging and strict fault reporting for safety-critical operation. IC Role / Device Role / Timing Role: Fault-aware PD controller providing hardware-level VBUS monitoring, short-circuit detection, and ERROR_RECOVERY GPIO assertion on hardware faults. Use Value: Reduces BOM count by eliminating discrete protection ICs; 22 V CC short tolerance prevents field failures due to connector misinsertion or cable damage. |
| IoT Edge Gateways | POS Terminals & Scanners |
|
Use Scenario: Ruggedized industrial gateways deployed in remote locations, powered via USB-C PD and requiring continuous operation during firmware updates. IC Role / Device Role / Timing Role: Dual-supply sink controller using VSYS for backup power and VDD for main rail, with programmable discharge timing to meet USB disconnect hold-off requirements. Use Value: Supports seamless transition between battery and PD power with <100 µs VBUS_EN_SNK response time, preventing brownouts during hot-swap events. |
Use Scenario: Retail POS terminals with integrated barcode scanners and thermal printers drawing burst current up to 4 A at 20 V. IC Role / Device Role / Timing Role: High-current sink controller coordinating dual charging paths-one for system logic, one for peripheral power-via POWER_OK2/POWER_OK3 signals. Use Value: Eliminates need for external power sequencers; enables simultaneous 20 V/2 A system rail and 20 V/2 A peripheral rail from single PD port. |
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 |
|---|---|---|---|
| TUSB8041RJER | USB 3.0 hub + PD sink controller combo; requires external MCU for PD policy; no dead battery mode | Targeted at host-side USB hubs-not standalone sink devices | Select when USB data switching and PD control must coexist in same package; not suitable for MCU-less designs |
| IP2721 | Single-chip PD sink + buck converter; integrates 5 V/3 A DC-DC; lacks 20 V VBUS rating and 22 V CC protection | Optimized for cost-sensitive consumer accessories below 15 W | Select only for 5 V–12 V applications with integrated regulation; unsuitable for 20 V industrial or medical use |
Compared with TUSB8041RJER and IP2721, STUSB4500QTR uniquely delivers true MCU-free 100 W negotiation, industrial-grade voltage ratings, and certified dead battery operation-making it the only choice for autonomous, high-reliability sink systems requiring USB PD 2.0 compliance at full 20 V/5 A.
Availability
STUSB4500QTR is available at Aetrix Electronics and suitable for industrial handheld devices, healthcare monitoring equipment, IoT edge gateways, and POS terminals requiring stable component supply, long-term lifecycle support, and certified USB PD 2.0 interoperability.
Supply support for STUSB4500QTR 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, analog ICs, and power management solutions for industrial, automotive, and consumer markets.
The STUSB4500 belongs to ST's USB Type-C & Power Delivery controller product line, engineered specifically for autonomous, high-power sink applications where MCU resources are constrained or unavailable.
FAQ
Does STUSB4500QTR require firmware programming to operate in auto-run mode?
No. Auto-run mode is implemented entirely in hardware using a proprietary decision algorithm stored in ROM. The device negotiates USB PD contracts autonomously after power-up using up to three NVM-configured sink PDOs-no external MCU, firmware, or runtime configuration is needed. NVM programming is optional and performed once during manufacturing using ST's dedicated tooling.
Can STUSB4500QTR support USB PD 3.0 sources?
Yes. While certified to USB PD 2.0 (TID #1000133), the STUSB4500QTR is interoperable with USB PD 3.0 sources in sink mode. It adheres to the USB PD specification's backward compatibility rules, accepting PDOs and responding to RDOs from PD 3.0 sources-but does not implement extended features like Fast Role Swap or Programmable Power Supply (PPS) negotiation.
What is the function of the VBUS_VS_DISCH pin beyond voltage monitoring?
VBUS_VS_DISCH serves three roles: (1) senses VBUS presence and magnitude for state machine transitions; (2) monitors overvoltage conditions to trigger hardware fault responses; and (3) provides a 50 mA internal discharge path activated automatically during cable removal, PDO downshift, or error recovery-reducing VBUS decay time without external components.
How does dead battery mode work without external power?
Dead battery mode uses CC1DB and CC2DB pins to activate internal pull-down resistors on CC1/CC2 even when VSYS and VDD are at 0 V. This allows the USB-C source to detect the sink and initiate VBUS supply before the STUSB4500QTR powers up. Once VDD rises above 4.1 V, the device takes full control of the PD negotiation and power path enabling.
STUSB4500QTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 24-VFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Controller
- Interface:
- I2C
- Standards:
- USB 2.0
- Voltage - Supply:
- 4.1V ~ 22V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- 24-QFN (4x4)
- Grade:
- -
- Qualification:
- -
STUSB4500QTR FAQ
1.How can I place an order for STUSB4500QTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STUSB4500QTR 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 STUSB4500QTR reliable?
The price and inventory of STUSB4500QTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STUSB4500QTR is usually 5 days.
3.What payment methods are accepted for STUSB4500QTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STUSB4500QTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STUSB4500QTR?
STUSB4500QTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STUSB4500QTR 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 STUSB4500QTR?
For technical support, including STUSB4500QTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STUSB4500QTR requirements.
6.How does Aetrix verify that STUSB4500QTR is sourced from the original manufacturer or authorized distributors?
All STUSB4500QTR 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 STUSB4500QTR meets industry standards.
7.What is the process for return or replacement of STUSB4500QTR?
All STUSB4500QTR units undergo pre-shipment inspection (PSI). If there is an issue with STUSB4500QTR, 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 STUSB4500QTR part is unused and in its original packaging.
Return procedure for STUSB4500QTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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