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STMicroelectronics ST-ONEHPTR
- Part No.:
- ST-ONEHPTR
- Manufacturer:
- STMicroelectronics
- Category:
- Power Management - Specialized
- Package:
- 36-BSOP (0.295", 7.50mm Width)
- Datasheet:
-
ST-ONEHPTR.pdf
- Description:
- FULLY INTEGRATED CONTROLLER FOR
- Quantity:
- Payment:
- Shipping:
Inventory:498
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Product details
Overview
ST-ONEHPTR from STMicroelectronics is a fully integrated digital USB-PD 3.1 EPR controller embedding an ARM® Cortex®-M0+ MCU (64 kB flash, 8 kB SRAM), ZVS non-complementary active clamp flyback controller, synchronous rectifier driver, reinforced galvanic isolation channel (4 kV transient, 9.6 kV hipot), and USB-PD PHY - designed for >100 W compact chargers targeting laptops and tablets.
For engineers reviewing the ST-ONEHPTR datasheet, ST-ONEHPTR pinout, ST-ONEHPTR application, or ST-ONEHPTR equivalent, key selection considerations include its dual-domain control architecture (primary-side HV startup + secondary-side protocol management), 800 V HV startup capability with brown-in/out sensing, integrated X-cap discharge, and pre-loaded firmware supporting AVS, electronically marked cables, and EPR power negotiation up to 28 V/5 A.
Technical Context
The ST-ONEHPTR implements a non-complementary ZVS active clamp flyback topology with real-time digital control: the Cortex-M0+ core executes closed-loop power regulation while coordinating primary-side gate drivers (HON/LON) and secondary-side synchronous rectification (SRGD/SRVDS) via a dual-channel isolated interface compliant with IEC 62368-1. It supports up to 300 kHz switching and integrates all analog front-ends - including 12-bit ADCs for voltage/current sensing (SVCC, CSP/CSM), OVP (OVP pin), OTP (POTP), and soft-start (SS).
Its USB-PD 3.1 EPR stack runs on-chip with 24 V-tolerant CC1/CC2 PHY, integrated load switch driver (ORGD), VBUS bleeder control (VOSNS), and programmable wake-up comparators - enabling full compliance with Extended Power Range negotiation, AVS, and cable authentication without external microcontrollers or level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| HV Startup | 800 V rated pin (HV) enables direct AC sensing and startup without auxiliary winding - reduces BOM and improves reliability in universal-input designs. |
| Isolation Rating | Reinforced insulation per IEC 62368-1: 9.6 kV pk / 1 min hipot, 4 kV transient - eliminates need for external isolators in safety-critical USB-PD adapters. |
| USB-PD Support | Fully integrated PHY with 24 V tolerance, CC1/CC2 pins, and pre-loaded EPR firmware - supports 28 V/5 A negotiation, AVS, and e-marked cable detection out-of-box. |
| MCU Core | ARM Cortex-M0+ with 64 kB flash and 8 kB SRAM - hosts full digital power control loop and USB-PD stack, enabling field-upgradable firmware and custom power profiles. |
| Power Density Enabler | Supports high-frequency operation (up to 300 kHz) with MasterGaN compatibility - allows planar transformers and <1 cm³ magnetics in >100 W designs. |
| Standby Compliance | Active X-cap discharge circuitry and <1.4 mA deep-sleep current (ISLEEP) - meets IEC 62368-1 standby power requirements without external timers or controllers. |
| Thermal Range | Junction temperature range: –40 °C to +125 °C - validated for continuous operation in enclosed laptop charger enclosures. |
Pinout & Package
ST-ONEHPTR is housed in a 36-pin QFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. The layout separates primary-side (HV, PVCC, HON, LON) and secondary-side (SVCC, CC1, CC2, ORGD) domains to support reinforced creepage/clearance (8 mm each).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| HV | High-voltage startup & AC sensing input | Withstands 800 V; senses AC peak for brown-in/out detection and initiates internal charge pump - replaces discrete HV start-up circuitry. |
| HON / LON | Primary-side gate drive outputs | Drive high-side and low-side FETs in active clamp flyback; include anti-cross-conduction logic and programmable deadtime (DT pin). |
| SRGD / SRVDS | Synchronous rectifier gate driver & drain sense | SRGD drives sync FET gate; SRVDS senses drain voltage via cascode - enables precise ZVS timing and reverse conduction prevention. |
| CC1 / CC2 | USB Type-C configuration channel interface | 24 V-tolerant bidirectional PHY pins - handle PD negotiation, VCONN sourcing, and cable e-marker communication without external transceivers. |
| ORGD | Load switch gate driver output | Pulls to 5 V above VOSNS to control external MOSFET - implements mandatory USB-PD output disconnect during fault or power contract change. |
| CSP / CSM | Differential output current sense inputs | Measure load current with ±0.5 mV offset and 50 dB CMRR - enables accurate constant-current regulation and overcurrent protection at full EPR range. |
Key Features
| Feature | Design Value |
|---|---|
| ZVS Non-Complementary Control | Eliminates shoot-through risk and enables >94% efficiency at 100 W by dynamically adjusting clamp timing - no external timing IC or complex compensation required. |
| Integrated Dual-Domain Isolation | Embedded galvanic channel handles both power control messaging and USB-PD protocol data - removes optocouplers, digital isolators, and associated bias supplies. |
| Pre-Loaded EPR Firmware | Factory-programmed stack supports USB-PD 3.1 EPR, AVS, and e-marked cable management - reduces time-to-market by eliminating firmware development for basic compliance. |
| Programmable Output Sensing | SVCC pin supports 6 V / 12 V / 24 V full-scale ranges via firmware register (VSET); 12-bit ADC with ±1% gain error - enables single design for 5 V to 28 V output profiles. |
| Active X-Cap Discharge | Internal bleeder circuit discharges input X-capacitors within 64 ms after AC removal - satisfies IEC 62368-1 touch-safe requirements without external discharge resistors or relays. |
Applications
| USB-PD 3.1 EPR Laptop Charger | Multi-Port GaN Adapter |
|---|---|
|
Use Scenario: 140 W compact wall adapter with dual USB-C ports delivering 28 V/5 A to ultrabooks and 20 V/3 A to peripherals. IC Role / Device Role / Timing Role: Primary-side ZVS active clamp controller + secondary-side USB-PD protocol manager and synchronous rectifier driver - coordinates power delivery, cable authentication, and dynamic voltage scaling (AVS). Use Value: Enables single-chip solution replacing 3–4 ICs (PWM controller, isolated comms, PD PHY, SR driver), reducing PCB area by 35% and BoM cost by $1.20/unit. |
Use Scenario: 100 W travel adapter with foldable plug, supporting simultaneous charging of laptop and smartphone with independent voltage negotiation. IC Role / Device Role / Timing Role: Dual-role controller managing two independent PD contracts via shared MCU core and isolated channels - handles concurrent CC1/CC2 handshaking and load-switch sequencing. Use Value: Eliminates need for secondary PD controller; firmware-managed port arbitration ensures stable 28 V/3.5 A + 9 V/3 A split without cross-talk or negotiation conflicts. |
| USB-C Power Bank with EPR | Industrial USB-PD Power Module |
|
Use Scenario: Portable 200 Wh power bank delivering 28 V/5 A to professional cameras and drones using certified EPR cables. IC Role / Device Role / Timing Role: Hosts full PD 3.1 stack including e-marker cable verification and AVS handshake - validates cable current rating before enabling 5 A delivery. Use Value: Prevents unsafe high-current delivery over non-compliant cables; built-in bleeder and thermal shutdown ensure safe operation under battery discharge stress. |
Use Scenario: DIN-rail mounted 120 W USB-PD power supply for industrial test equipment requiring remote firmware updates and strict safety certification. IC Role / Device Role / Timing Role: Reinforced isolation (9.6 kV hipot) and -40 °C to +125 °C junction rating enable use in harsh environments; flash memory supports secure OTA updates. Use Value: Meets UL 1577 and IEC 62368-1 without external isolation components - simplifies safety approval and reduces time-to-certification by 8 weeks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-PD 3.1 EPR controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4282-AEC1 | Dual-output buck controller with integrated USB-PD PHY but no active clamp flyback or ARM MCU - requires external microcontroller for EPR negotiation. | Limited to <100 W; lacks ZVS flyback control and reinforced isolation - unsuitable for >100 W EPR adapters needing compact magnetics. | Choose when designing lower-power multi-rail systems where buck topology suffices and isolation requirements are less stringent. |
| INN3379C-H302 | Off-line flyback controller with integrated SR and USB-PD 3.0 (not EPR), no programmable MCU - fixed-function silicon with no firmware update capability. | Supports only up to 20 V/5 A; no AVS or e-marker cable handling - cannot negotiate 28 V/5 A EPR contracts or adapt to future PD spec revisions. | Choose for cost-sensitive 65 W chargers where EPR compliance is not required and firmware flexibility is unnecessary. |
Compared with MPQ4282-AEC1 and INN3379C-H302, ST-ONEHPTR uniquely integrates ZVS active clamp control, ARM-based firmware upgradability, and full USB-PD 3.1 EPR compliance in one package - enabling higher power density, future-proof protocol support, and reduced system-level validation effort.
Availability
ST-ONEHPTR is available at Aetrix Electronics and suitable for USB-PD 3.1 EPR laptop chargers, multi-port GaN adapters, and industrial USB-C power modules requiring stable component supply, long-term lifecycle support, and safety-certified design-in.
Supply support for ST-ONEHPTR 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, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade solutions used in over 200,000 customer designs annually.
ST-ONEHPTR belongs to the ST-ONE® family - ST's dedicated platform for digitally controlled, USB-PD-integrated power converters - engineered specifically to replace multi-chip USB-PD adapter architectures with single-package, firmware-upgradeable solutions.
FAQ
Does ST-ONEHPTR require external firmware development to support USB-PD 3.1 EPR?
No. ST-ONEHPTR ships with factory-preloaded firmware that fully implements USB-PD 3.1 EPR, including AVS, electronically marked cable detection, and 28 V/5 A power contract negotiation. Users can customize behavior via configuration registers (e.g., VSET, HYST) without modifying core stack code. Optional firmware updates are supported via GPIO0 boot mode.
What is the maximum achievable switching frequency and how does it impact magnetics size?
ST-ONEHPTR supports up to 300 kHz operation with programmable deadtime and leading-edge blanking. When paired with ST's MasterGaN power stages, this enables planar transformer designs with footprint <8 mm × 8 mm and height <4 mm in 100–140 W applications - verified in ST reference design AN5922.
How does the reinforced galvanic isolation meet IEC 62368-1 requirements without external components?
The embedded dual-channel isolator achieves 9.6 kV pk / 1 min hipot and 4 kV transient voltage per IEC 62368-1 through on-die capacitive coupling with metal-over-metal shielding and proprietary dielectric layers. No external isolators, optocouplers, or bias supplies are needed - validated across 100% production testing at 6.4 kV pk / 1 s.
Can ST-ONEHPTR support output voltages above 24 V, such as 28 V EPR profiles?
Yes. Via firmware-configurable VSET register, SVCC pin supports 24 V full-scale sensing (±1% gain error), and VOSNS enables VBUS bleeder control up to 28 V. The 12-bit ADC and programmable wake-up comparator (VWUP up to 20.2 V) ensure accurate regulation and fault response across full EPR range.
ST-ONEHPTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 36-BSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- USB Dedicated Charging Port (DCP), Power Switch
- Current - Supply:
- 2.8mA
- Voltage - Supply:
- 3.1 ~ 3.5V, 16V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-SSOP
ST-ONEHPTR FAQ
1.How can I place an order for ST-ONEHPTR through Aetrix?
Please submit a Request for Quotation (RFQ) for ST-ONEHPTR 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 ST-ONEHPTR reliable?
The price and inventory of ST-ONEHPTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST-ONEHPTR is usually 5 days.
3.What payment methods are accepted for ST-ONEHPTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST-ONEHPTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST-ONEHPTR?
ST-ONEHPTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST-ONEHPTR 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 ST-ONEHPTR?
For technical support, including ST-ONEHPTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST-ONEHPTR requirements.
6.How does Aetrix verify that ST-ONEHPTR is sourced from the original manufacturer or authorized distributors?
All ST-ONEHPTR 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 ST-ONEHPTR meets industry standards.
7.What is the process for return or replacement of ST-ONEHPTR?
All ST-ONEHPTR units undergo pre-shipment inspection (PSI). If there is an issue with ST-ONEHPTR, 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 ST-ONEHPTR part is unused and in its original packaging.
Return procedure for ST-ONEHPTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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