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Diodes Incorporated PI5USB2546HZHEX
- Part No.:
- PI5USB2546HZHEX
- Manufacturer:
- Diodes Incorporated
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
PI5USB2546HZHEX.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
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Product details
Overview
PI5USB2546HZHEX 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 (typ.), 4.5–5.5 V operation, and support for BC1.2 CDP/DCP, YD/T1591 Shorted Mode, and non-BC1.2 Divider-1A/Divider-2A/DCP-1.2V charging in notebook host ports and universal wall adapters.
For engineers reviewing the PI5USB2546HZHEX datasheet, PI5USB2546HZHEX pinout, PI5USB2546HZHEX application, or PI5USB2546HZHEX equivalent, key selection criteria include its dual-role USB data/power switching capability, programmable current thresholds for load detection and S4/S5 charging control, /STATUS-driven power wake and port power management (PPM), and TQFN-16 package compatibility with USB 2.0/3.0 power switch requirements.
Technical Context
The PI5USB2546HZHEX integrates a high-speed analog switch for USB 2.0 D+/D– lines and a 73-mΩ high-side MOSFET power switch in a single die, enabling simultaneous data path routing and load-controlled power delivery. It implements automatic charging mode detection across BC1.2-compliant and legacy schemes without external configuration.
Its /STATUS pin delivers two distinct power management signals: power wake (for S4/S5 charging enable) and port power management (PPM) for dynamic current allocation in multi-port systems. Current-limit and load-detect thresholds are independently programmable via external resistors, supporting precise system-level power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(on) | 73 mΩ (typ.) - Enables low-loss power distribution under 3 A load, minimizing thermal rise in compact USB port designs. |
| Operating Voltage | 4.5 V to 5.5 V - Matches standard USB 5 V supply rails and tolerates input ripple without regulation. |
| Adjustable Current Limit | Up to 3 A (typ.) - Configurable via external resistor to match port-specific safety and cable loss requirements. |
| Quiescent Current | 2 μA (disabled), 270 μA (enabled) - Supports ultra-low-power sleep-mode charging and S3 wake-up without battery drain. |
| USB Data Switch | Integrated D+/D– high-speed switch - Maintains full USB 2.0 signal integrity (480 Mbps) while isolating host during charge-only modes. |
| Charging Modes | BC1.2 CDP/DCP, YD/T1591 Shorted, Divider-1A/2A, DCP-1.2V - Covers global fast-charge standards without firmware or host intervention. |
Pinout & Package
Package: 16-contact Thin Fine Pitch Quad Flat No-Lead (TQFN), 3 mm × 3 mm, 0.5 mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply | Accepts 4.5–5.5 V USB bus voltage; feeds internal LDO and high-side switch. |
| VOUT | Switched output | Delivers regulated 5 V to downstream USB port; connects to load via 73-mΩ MOSFET. |
| D+ | USB 2.0 data line (positive) | Passes or isolates D+ signal based on charging mode and host state; supports high-speed signaling. |
| D− | USB 2.0 data line (negative) | Paired with D+ for differential USB 2.0 data routing; maintains impedance matching. |
| /STATUS | Open-drain status output | Asserts low for power wake (S4/S5) or PPM event; enables system-level power coordination. |
| ILIM | Current limit programming | Sets overcurrent threshold via external resistor; also configures load detect sensitivity. |
| GND | Power and signal ground | Common reference for power switch, data switch, and logic; tied to exposed thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 D+/D– switch | Eliminates need for discrete analog switches, preserving signal integrity and reducing BOM count in host/hub designs. |
| Programmable dual current thresholds | Enables independent tuning of overcurrent protection and load detection for S4/S5 charging and multi-port PPM. |
| BC1.2 + YD/T1591 + legacy mode support | Ensures interoperability with global smartphones, tablets, and accessories without host software dependency. |
| S3 wake-up with mouse/keyboard | Allows system resume from suspend-to-RAM using low/full-speed HID devices connected through controlled USB port. |
| TQFN-16 (ZH) package | Provides 3×3 mm footprint with thermal pad for efficient heat dissipation in space-constrained laptop and adapter PCBs. |
Applications
| USB Host Port Charging | Universal Wall Adapter |
|---|---|
Use Scenario: Notebook or desktop motherboard USB port delivering power and data to peripherals while supporting fast charging. IC Role / Device Role / Timing Role: USB charging port controller and high-side power switch managing VBUS delivery, D+/D– routing, and mode negotiation. Use Value: Enables BC1.2 CDP/DCP and legacy charging without host CPU involvement, while maintaining full USB 2.0 data throughput. | Use Scenario: Compact AC-DC wall charger with multiple USB-A ports delivering adaptive 5 V power to diverse mobile devices. IC Role / Device Role / Timing Role: Standalone charging controller handling load detection, current limiting, and mode signature generation per port. Use Value: Supports YD/T1591 Shorted Mode and Divider-2A for Chinese-market phones, plus DCP-1.2V for older Android devices. |
| Multi-Port Hub Power Management | Sleep-Mode Charging System |
Use Scenario: USB 3.0 hub with four downstream ports requiring coordinated current allocation and thermal management. IC Role / Device Role / Timing Role: Per-port power switch implementing Port Power Management (PPM) via /STATUS signaling to hub controller. Use Value: Prevents total overcurrent shutdown by dynamically throttling individual ports based on real-time load detection. | Use Scenario: Laptop in S4/S5 (hibernate/shutdown) state supplying standby power to connected phones or wearables. IC Role / Device Role / Timing Role: Power wake controller asserting /STATUS to enable auxiliary 5 V rail only when valid load is detected. Use Value: Delivers up to 3 A at <2 μA quiescent current, extending battery life during long-term storage or travel. |
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 device uses internal current-sense amplifier; fixed 1.5 A current limit; no YD/T1591 support. | Targeted at USB-C PD source designs with tighter thermal constraints; lacks Shorted Mode compliance. | Select when integrating with TI ecosystem and prioritizing precision current monitoring over multi-standard charging. |
| RT1711H | Richtek part offers 40-mΩ RDS(on) but requires external D+/D– switch; supports same BC1.2/YD/T1591 modes. | Better suited for high-current single-port adapters where board area allows discrete data switching. | Choose for lower conduction loss where added component count and layout complexity are acceptable. |
Compared with TPS2546RTER and RT1711H, the PI5USB2546HZHEX uniquely combines integrated D+/D– switching, 73-mΩ RDS(on), and full YD/T1591 Shorted Mode support in a 3×3 mm TQFN, making it optimal for space-limited multi-standard USB host ports requiring zero-host-intervention charging.
Availability
PI5USB2546HZHEX is available at Aetrix Electronics and suitable for notebook host ports, universal wall adapters, multi-port USB hubs, and sleep-mode charging systems requiring stable component supply and global charging standard compliance.
Supply support for PI5USB2546HZHEX 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The PI5USB2546H series targets USB power delivery infrastructure, delivering integrated charging control, data switching, and intelligent power management for host systems needing robust, standards-compliant port-level power control.
FAQ
What USB charging standards does the PI5USB2546HZHEX support?
The PI5USB2546HZHEX supports USB Battery Charging Specification 1.2 (CDP and DCP modes), Chinese Telecommunication Industry Standard YD/T1591-2009 (Shorted Mode), and three non-BC1.2 legacy modes: Divider-1A, Divider-2A, and DCP-1.2V. All mode detection is fully hardware-based with no firmware or host interaction required.
How does the /STATUS pin function in power wake and port power management?
The /STATUS pin operates as an open-drain output that asserts low during either power wake (indicating valid load detection in S4/S5 states) or port power management events (signaling overcurrent or load change in multi-port systems). Its dual-function behavior is determined by internal state machine logic, not external configuration.
Can the PI5USB2546HZHEX be used in USB 3.0 applications?
Yes - the PI5USB2546HZHEX is compatible with USB 3.0 power switch requirements. Its integrated D+/D– switch handles only the USB 2.0 data path, leaving SuperSpeed TX/RX lanes unaffected. The 73-mΩ RDS(on) and 4.5–5.5 V operation meet USB 3.0 VBUS switching specifications for host and hub applications.
What is the thermal performance of the ZH (TQFN-16) package?
The ZH package features a 3 mm × 3 mm footprint with an exposed thermal pad. Diodes Incorporated specifies θJA = 60°C/W (JEDEC JESD51-7, 2-layer board) and θJC = 12°C/W (junction-to-case). At 3 A continuous load and 5 V input, junction temperature rise remains within safe limits when the thermal pad is soldered to a ≥1 cm² copper pour.
PI5USB2546HZHEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 16-WFQFN 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-TQFN (3x3)
PI5USB2546HZHEX FAQ
1.How can I place an order for PI5USB2546HZHEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI5USB2546HZHEX 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 PI5USB2546HZHEX reliable?
The price and inventory of PI5USB2546HZHEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI5USB2546HZHEX is usually 5 days.
3.What payment methods are accepted for PI5USB2546HZHEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI5USB2546HZHEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI5USB2546HZHEX?
PI5USB2546HZHEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI5USB2546HZHEX 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 PI5USB2546HZHEX?
For technical support, including PI5USB2546HZHEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI5USB2546HZHEX requirements.
6.How does Aetrix verify that PI5USB2546HZHEX is sourced from the original manufacturer or authorized distributors?
All PI5USB2546HZHEX 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 PI5USB2546HZHEX meets industry standards.
7.What is the process for return or replacement of PI5USB2546HZHEX?
All PI5USB2546HZHEX units undergo pre-shipment inspection (PSI). If there is an issue with PI5USB2546HZHEX, 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 PI5USB2546HZHEX part is unused and in its original packaging.
Return procedure for PI5USB2546HZHEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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