My Inquiry
My Account
Diodes Incorporated PI5USB2546ZHDEX
- Part No.:
- PI5USB2546ZHDEX
- Manufacturer:
- Diodes Incorporated
- Package:
- 16-UFQFN Exposed Pad
- Datasheet:
-
PI5USB2546ZHDEX.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 16UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,494
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PI5USB2546ZHDEX from Diodes Incorporated (acquired Pericom) is a USB 2.0 charging port controller and high-side power switch with integrated D+/D– data-line switching, 73-mΩ RDS(on), adjustable current limit up to 3 A, BC1.2/CDP/DCP/Shorted-mode support, and S3 wake-up capability for keyboards/mice. It targets USB host ports in notebook motherboards requiring compliant charging and robust short-circuit protection.
For engineers reviewing the PI5USB2546ZHDEX datasheet, PI5USB2546ZHDEX pinout, PI5USB2546ZHDEX application, or PI5USB2546ZHDEX equivalent, key selection factors include BC1.2 mode compatibility, S3/S4/S5 wake signaling via /STATUS, programmable load detection thresholds, and TQFN-16 package thermal performance under 3 A continuous load.
Technical Context
The PI5USB2546ZHDEX implements dual-function control: it actively negotiates USB charging modes (CDP, DCP, Shorted, Divider-1A/2A, DCP-1.2V) by applying precise voltage signatures on D+/D– lines while simultaneously managing power delivery via an integrated 73-mΩ high-side MOSFET. Its /STATUS pin delivers open-drain signals for both power wake (S4/S5) and port power management (PPM) in multi-port systems.
It operates across 4.5 V to 5.5 V supply range, draws only 270 µA when enabled and 2 µA when disabled, and supports automatic SDP-to-CDP handshaking for legacy devices that do not initiate CDP requests - all without external microcontroller intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 5.5 V - ensures stable operation across standard USB 5 V rail tolerances including ±5% variation. |
| RDS(on) | 73 mΩ (typ.) - enables low conduction loss and <150 mW dissipation at 3 A, reducing thermal stress in TQFN-16 package. |
| Adjustable Current Limit | Up to 3 A (typ.) - set via external resistor on ILIM_SEL pin, supporting diverse load profiles from smartphones to tablets. |
| Quiescent Current | 270 µA (enabled), 2 µA (disabled) - minimizes standby power draw in S4/S5 sleep states for battery-backed systems. |
| Charging Mode Support | BC1.2 CDP/DCP, YD/T1591 Shorted, Divider-1A/2A, DCP-1.2V - covers global fast-charge requirements without firmware dependency. |
| Wake Capability | S3 wake via D+/D–, S4/S5 wake via /STATUS - enables system resume from deep sleep using USB peripherals without auxiliary power rails. |
Pinout & Package
TQFN-16 (3.0 mm × 3.0 mm, 0.5 mm pitch, exposed thermal pad) - thermally enhanced for continuous 3 A operation with minimal PCB copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBUS | Power input | 5 V supply input to high-side switch; connects directly to upstream USB power rail. |
| OUT | Switched output | Delivers regulated 5 V to downstream port; drives capacitive loads up to 1000 µF safely. |
| /STATUS | Open-drain status output | Signals PPM event or power wake condition; pulled high externally to enable S4/S5 charging control logic. |
| ILIM_SEL | Current-limit programming | Resistor-divider sets overcurrent threshold between 0.5 A and 3 A with ±15% accuracy. |
| D+IN / D–IN | Upstream data interface | Connects to host controller's USB 2.0 differential pair; passes high-speed traffic transparently. |
| D+OUT / D–OUT | Downstream data interface | Routes D+/D– to attached device; internal analog switch maintains <1.5 dB insertion loss at 480 Mbps. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated D+/D– analog switch | Maintains USB 2.0 high-speed signal integrity (≤ –1.5 dB @ 240 MHz) without external mux or routing complexity. |
| Multi-standard charging signature generation | Automatically applies correct D+/D– voltages for BC1.2 CDP/DCP, YD/T1591 Shorted, and proprietary Divider/DCP-1.2V modes - no host software required. |
| Programmable load detection | Two independent current thresholds enable separate configuration for S4/S5 charging enable and per-port PPM decisions in hub designs. |
| S3 wake via D+/D– | Recognizes resume signaling from low/full-speed USB peripherals (keyboard/mouse) without dedicated wake pins or additional logic. |
Applications
| USB Host Port on Notebook Motherboard | Universal Wall Charging Adapter |
|---|---|
Use Scenario: Integrated into laptop motherboard USB-A ports to deliver fast charging while maintaining full USB 2.0 data connectivity. IC Role / Device Role / Timing Role: Acts as intelligent power switch and BC1.2 mode negotiator; handles D+/D– line conditioning and current limiting autonomously. Use Value: Eliminates need for discrete charge controllers and level shifters, reducing BOM count by ≥3 components and enabling single-chip compliance with USB-IF and YD/T1591 standards. | Use Scenario: Embedded in compact AC-DC wall adapters to provide dual-role (data + charge) USB-A output with adaptive charging mode detection. IC Role / Device Role / Timing Role: Functions as primary charging mode selector and 3 A power switch; uses /STATUS to coordinate secondary-side power sequencing. Use Value: Supports simultaneous charging of multiple device types (iPhone, Samsung, Huawei) without manual mode selection or firmware updates. |
| Desktop PC Front-Panel USB Hub | Industrial Docking Station |
Use Scenario: Used in front-panel USB hubs to manage power distribution across four downstream ports with independent load monitoring. IC Role / Device Role / Timing Role: Provides port power management (PPM) via /STATUS-driven enable/disable sequencing and real-time current threshold comparison. Use Value: Prevents upstream overcurrent faults during hot-plug of high-capacitance devices (e.g., external SSDs), improving system reliability. | Use Scenario: Deployed in ruggedized docking stations for medical or test equipment requiring guaranteed S3 wake and uninterrupted charging during standby. IC Role / Device Role / Timing Role: Serves as fail-safe power gate and wake coordinator; asserts /STATUS on D+ activity to trigger host resume from S3 even with main SoC powered down. Use Value: Enables zero-touch peripheral reconnection after power cycle, meeting IEC 60601-1 auxiliary power continuity requirements. |
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 uses internal 120-mΩ FET; fixed 1.5 A current limit; supports BC1.2 only (no YD/T1591 Shorted mode). | Lacks Chinese telecom standard compliance; requires external circuitry for S4/S5 wake coordination. | Prefer when BC1.2-only compliance suffices and board space allows higher RDS(on)-related thermal margin. |
| IP2721 | Infineon part integrates QC3.0/PD2.0 negotiation; 40-mΩ FET; requires I²C host control for mode selection. | Not autonomous - depends on MCU for charging protocol arbitration; adds firmware layer and timing dependencies. | Select when USB PD or Qualcomm Quick Charge support is mandatory and host MCU resources are available. |
Compared with TPS2546RTER and IP2721, the PI5USB2546ZHDEX offers autonomous multi-standard charging without host intervention, native S4/S5 wake signaling, and lower conduction loss - making it optimal for cost-sensitive, firmware-light embedded USB host designs.
Availability
PI5USB2546ZHDEX is available at Aetrix Electronics and suitable for notebook motherboard USB ports, universal wall charging adapters, desktop front-panel hubs, and industrial docking stations requiring stable component supply, long-term lifecycle assurance, and BC1.2/YD/T1591 compliance.
Supply support for PI5USB2546ZHDEX 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 acquired Pericom Semiconductor in 2017 and integrates its high-speed interface and USB power management portfolio into broad mixed-signal solutions for computing and consumer electronics.
The PI5USB2546ZHDEX belongs to Diodes' USB Power Delivery and Charging Controller product line, designed specifically for autonomous, firmware-free USB charging port implementation in resource-constrained host systems.
FAQ
What charging standards does the PI5USB2546ZHDEX support without external configuration?
The PI5USB2546ZHDEX natively supports USB Battery Charging Specification 1.2 (CDP/DCP), Chinese YD/T1591-2009 Shorted Mode, and three non-BC1.2 modes - Divider-1A, Divider-2A, and DCP-1.2V - all through hardware-based D+/D– voltage signature generation. No I²C interface, firmware, or host processor involvement is required for mode detection or application.
How does the /STATUS pin function in S4/S5 power states?
In S4 (hibernate) and S5 (soft-off) states, the /STATUS pin asserts a low-level open-drain signal when load detection exceeds the programmed threshold, enabling the system power controller to activate auxiliary 5 V rails for charging. This occurs independently of host CPU state and requires only an external pull-up resistor to the auxiliary supply.
Can the PI5USB2546ZHDEX drive a 1000 µF output capacitor safely during startup?
Yes - the PI5USB2546ZHDEX incorporates soft-start circuitry that limits inrush current during turn-on, allowing safe charging of up to 1000 µF bulk capacitance at the OUT pin. This is validated per datasheet Figure 12 (capacitive load transient response) and supports common USB port ESD/EMI filter configurations without external current limiting.
Is the TQFN-16 package RoHS-compliant and lead-free?
Yes - the PI5USB2546ZHDEX in TQFN-16 package (part number suffix ZHDEX) is RoHS-compliant and lead-free per Diodes Incorporated's official product change notice (PCN# 22-0024). The exposed thermal pad is electrically connected to GND and must be soldered to a minimum 12 mm² PCB thermal pad for rated 3 A operation.
PI5USB2546ZHDEX 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)
PI5USB2546ZHDEX FAQ
1.How can I place an order for PI5USB2546ZHDEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI5USB2546ZHDEX 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 PI5USB2546ZHDEX reliable?
The price and inventory of PI5USB2546ZHDEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI5USB2546ZHDEX is usually 5 days.
3.What payment methods are accepted for PI5USB2546ZHDEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI5USB2546ZHDEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI5USB2546ZHDEX?
PI5USB2546ZHDEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI5USB2546ZHDEX 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 PI5USB2546ZHDEX?
For technical support, including PI5USB2546ZHDEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI5USB2546ZHDEX requirements.
6.How does Aetrix verify that PI5USB2546ZHDEX is sourced from the original manufacturer or authorized distributors?
All PI5USB2546ZHDEX 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 PI5USB2546ZHDEX meets industry standards.
7.What is the process for return or replacement of PI5USB2546ZHDEX?
All PI5USB2546ZHDEX units undergo pre-shipment inspection (PSI). If there is an issue with PI5USB2546ZHDEX, 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 PI5USB2546ZHDEX part is unused and in its original packaging.
Return procedure for PI5USB2546ZHDEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PI5USB2546ZHDEX Tags
-
TPS22919DCKR
Texas Instruments
-
MIC2091-1YM5-TR
Microchip Technology
-
MIC2090-1YM5-TR
Microchip Technology
-
TPS22995RZFR
Texas Instruments
-
TPS22975DSGR
Texas Instruments
-
SIP32510DT-T1-GE3
Vishay Siliconix
-
ULN2003D1013TR
STMicroelectronics
-
MIC2005A-1YM5-TR
Microchip Technology
-
MIC2005A-1YM6-TR
Microchip Technology
-
TPS22916BYFPR
Texas Instruments
-
TPS22917DBVR
Texas Instruments
-
ULN2003APWR
Texas Instruments
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
