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Diodes Incorporated PI5USB2546HZHDEX
- Part No.:
- PI5USB2546HZHDEX
- Manufacturer:
- Diodes Incorporated
- Package:
- 16-UFQFN Exposed Pad
- Datasheet:
-
PI5USB2546HZHDEX.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 16UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,460
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Product details
Overview
PI5USB2546HZHDEX from Diodes Incorporated is a USB charging port controller and high-side power switch with integrated USB 2.0 D+/D– data-line switching, 73-mΩ RDS(on), adjustable current limit up to 3 A, 4.5–5.5 V operation, and support for BC1.2 CDP/DCP, YD/T1591 Shorted Mode, and non-BC1.2 Divider-1A/2A/DCP-1.2V charging schemes - deployed in notebook USB hubs and wall adapters.
For engineers reviewing the PI5USB2546HZHDEX datasheet, PI5USB2546HZHDEX pinout, PI5USB2546HZHDEX application, or PI5USB2546HZHDEX equivalent, key selection criteria include USB BC1.2/YD/T1591 compliance, S3 wake-up capability for mouse/keyboard, /STATUS-driven power wake and port power management (PPM), load detection for S4/S5 charging, and 16-pin UQFN (ZHD) thermal performance under heavy capacitive loads.
Technical Context
The PI5USB2546HZHDEX integrates a USB 2.0 high-speed analog switch for D+/D– lines and a 73-mΩ high-side MOSFET power switch, enabling simultaneous data pass-through and controlled power delivery. It implements automatic mode detection across BC1.2-compliant (CDP/DCP), YD/T1591 Shorted, and three proprietary non-BC1.2 schemes (Divider-1A, Divider-2A, DCP-1.2V).
Power management is coordinated via the /STATUS pin, supporting two distinct functions: power wake (for S4/S5 charging control) and port power management (PPM) in multi-port systems. Device quiescent current is 2 μA (disabled) and 270 μA (enabled), optimized for system-level sleep-state integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V USB power rails including tolerance for ripple and droop. |
| RDS(on) (Typ.) | 73 mΩ - enables low conduction loss and minimal self-heating during 3 A continuous load conditions. |
| Adjustable Current Limit | Up to 3 A (typ.) - set via external resistor to protect downstream ports and adapt to varying load profiles. |
| USB Data Switch | Integrated D+/D– switch compliant with USB 2.0 high-speed signaling - preserves signal integrity without external components. |
| Charging Mode Support | BC1.2 CDP/DCP, YD/T1591 Shorted Mode, Divider-1A/2A, DCP-1.2V - covers global fast-charge standards without firmware intervention. |
| Wake Capability | S3 wake from mouse/keyboard (low/full speed) - maintains OS-level suspend/resume compatibility in host systems. |
Pinout & Package
Package: 16-pin ZHD (3 mm × 3 mm, 0.4 mm pitch UQFN) with exposed thermal pad - optimized for compact USB hub PCB layouts and thermal dissipation under sustained 3 A loads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input Power Supply | 5 V rail input; connects to upstream USB power source before high-side switch. |
| VOUT | Switched Output | Delivers regulated 5 V to downstream USB port; routed to connector VBUS and D+/D– switch supply. |
| /EN | Enable Control | Active-low logic input; disables both power switch and data switch when deasserted. |
| /STATUS | Power Management Signal | Open-drain output indicating port status; used for power wake (S4/S5) and PPM coordination in multi-port systems. |
| D+ | USB Data Line (High) | Passes USB 2.0 differential signal through internal analog switch; supports high-speed (480 Mbps) operation. |
| D− | USB Data Line (Low) | Complementary to D+; maintains impedance-controlled routing and common-mode noise rejection. |
| ILIM | Current Limit Set | Resistor-connected pin setting overcurrent threshold between 0.5 A and 3 A (typ.) for fault protection. |
| PGND | Power Ground | Dedicated ground return for high-current path; isolated from AGND to minimize noise coupling into data lines. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 D+/D– Switch | Eliminates need for discrete analog switches while preserving signal integrity up to 480 Mbps. |
| Multi-Standard Charging Detection | Hardware-based auto-detection of BC1.2, YD/T1591, and three non-BC1.2 modes - no microcontroller or firmware required. |
| Power Wake via /STATUS | Enables host system to monitor and control power delivery during S4/S5 states for always-on charging. |
| Port Power Management (PPM) | Allows dynamic allocation of shared 5 V rail across multiple PI5USB2546H devices using /STATUS arbitration. |
| Load Detection Circuitry | Identifies attached device presence and charging mode by monitoring D+/D– voltage signatures - triggers appropriate current limit and power state. |
Applications
| Notebook USB Hub Ports | Universal Wall Charging Adapter |
|---|---|
Use Scenario: Dual-USB-A hub on ultrabook docking station requiring independent charging control and data pass-through per port. IC Role / Device Role / Timing Role: USB charging port controller managing VBUS switching, D+/D– routing, and BC1.2/YD/T1591 signature generation per port. Use Value: Enables simultaneous 3 A charging + USB 2.0 data at each port without host CPU involvement or additional level-shifters. | Use Scenario: Multi-port AC-DC adapter delivering 5 V/3 A per USB-A port with adaptive charging for legacy and modern smartphones. IC Role / Device Role / Timing Role: Standalone charging controller implementing hardware-based mode detection and current limiting for each output. Use Value: Supports global fast-charge standards (including Chinese YD/T1591) without MCU, reducing BOM cost and certification complexity. |
| Desktop PC Front-Panel USB | Industrial USB Peripheral Dock |
Use Scenario: Front-panel USB 2.0 ports on ATX desktops requiring S3 wake from keyboard/mouse and stable VBUS during sleep. IC Role / Device Role / Timing Role: High-side power switch with integrated wake signaling via /STATUS pin and D+/D– switching for legacy HID devices. Use Value: Maintains OS-compatible S3 resume functionality while providing robust short-circuit protection (73-mΩ RDS(on)) and low quiescent current (2 μA disabled). | Use Scenario: Ruggedized USB dock for factory-floor HMIs connecting barcode scanners, magnetic stripe readers, and USB-C peripherals. IC Role / Device Role / Timing Role: Load-detecting power switch ensuring reliable enumeration and charging under ESD-prone industrial environments. Use Value: Tolerates repeated hot-plug events and capacitive loads up to 1000 µF without latch-off, thanks to programmable current thresholds and thermal foldback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB charging port controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2546RTER | TI part with integrated USB 2.0 switch, 42-mΩ RDS(on), fixed 3 A current limit, no YD/T1591 Shorted Mode support. | Lacks Chinese telecom standard compliance; requires external circuitry for Shorted Mode emulation. | Select when BC1.2-only coverage suffices and lower RDS(on) is prioritized over regional standard flexibility. |
| IP2721 | Infineon dual-port controller with PD3.0 support, 60-mΩ RDS(on), but no native USB 2.0 data switch - requires external analog switch. | Targets USB-C PD applications; not suitable for legacy USB-A-only designs needing integrated D+/D– routing. | Choose only for new USB-C designs where PD negotiation and dual-port coordination outweigh integrated data-switch convenience. |
Compared with TPS2546RTER and IP2721, the PI5USB2546HZHDEX uniquely combines BC1.2/YD/T1591/non-BC1.2 hardware detection, integrated D+/D– switching, and /STATUS-driven PPM - making it optimal for cost-sensitive, USB-A-focused systems requiring global charging interoperability without added ICs or firmware.
Availability
PI5USB2546HZHDEX is available at Aetrix Electronics and suitable for notebook USB hubs, universal wall charging adapters, and desktop front-panel USB implementations requiring stable component supply, long-term lifecycle support, and RoHS 3/Green compliance.
Supply support for PI5USB2546HZHDEX 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in power management, signal integrity, and connectivity solutions for consumer, computing, and industrial markets.
The PI5USB2546H series targets USB power delivery infrastructure - designed specifically to simplify charging port implementation in host systems and adapters by integrating detection, switching, and power control in a single UQFN package.
FAQ
Does PI5USB2546HZHDEX support USB 3.0 SuperSpeed data lines?
No. The PI5USB2546HZHDEX integrates a USB 2.0 high-speed (480 Mbps) D+/D– analog switch only. It does not handle USB 3.0 TX/RX differential pairs. Its design purpose is USB-A port power and BC1.2/YD/T1591 charging control - not SuperSpeed signal routing.
Can /STATUS be used to control an external PMIC or enable sequencing?
Yes. The /STATUS pin is an open-drain output that asserts low during active port operation and releases high-Z during fault or disable. It can drive logic inputs or pull-down resistors on external PMIC enable pins to coordinate multi-rail power sequencing in multi-port systems.
What is the thermal performance of the ZHD (UQFN) package under 3 A continuous load?
In a standard 4-layer PCB with 1-in² 2-oz copper thermal pad and 1000 LFPM airflow, the ZHD package achieves ≤45°C junction rise above ambient at 3 A and 5 V. ThetaJA is 42°C/W per Diodes Inc. characterization - validated with JEDEC JESD51-7 test board.
Is PI5USB2546HZHDEX compatible with USB Battery Charging Specification Revision 1.1?
Yes. The device fully supports BC1.2 Rev 1.2, which supersedes Rev 1.1. All CDP/DCP detection algorithms, voltage thresholds, and timing requirements in Rev 1.1 are preserved and extended in the implemented hardware logic - no configuration change is needed for backward compatibility.
PI5USB2546HZHDEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 16-UFQFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 4.5V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 2.5A
- Rds On (Typ):
- 73mOhm
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Adjustable), Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-UQFN (3x3)
PI5USB2546HZHDEX FAQ
1.How can I place an order for PI5USB2546HZHDEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI5USB2546HZHDEX 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 PI5USB2546HZHDEX reliable?
The price and inventory of PI5USB2546HZHDEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI5USB2546HZHDEX is usually 5 days.
3.What payment methods are accepted for PI5USB2546HZHDEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI5USB2546HZHDEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI5USB2546HZHDEX?
PI5USB2546HZHDEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI5USB2546HZHDEX 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 PI5USB2546HZHDEX?
For technical support, including PI5USB2546HZHDEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI5USB2546HZHDEX requirements.
6.How does Aetrix verify that PI5USB2546HZHDEX is sourced from the original manufacturer or authorized distributors?
All PI5USB2546HZHDEX 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 PI5USB2546HZHDEX meets industry standards.
7.What is the process for return or replacement of PI5USB2546HZHDEX?
All PI5USB2546HZHDEX units undergo pre-shipment inspection (PSI). If there is an issue with PI5USB2546HZHDEX, 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 PI5USB2546HZHDEX part is unused and in its original packaging.
Return procedure for PI5USB2546HZHDEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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