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Diodes Incorporated PI5USB14550-AZEEX
- Part No.:
- PI5USB14550-AZEEX
- Manufacturer:
- Diodes Incorporated
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
PI5USB14550-AZEEX.pdf
- Description:
- IC PWR SWITCH USB 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,053
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Product details
Overview
PI5USB14550-AZEEX from Diodes Incorporated (acquired Pericom in 2017) is a USB sleep-and-charge switch IC that enables battery-powered handheld devices to draw charging current from a notebook PC's USB VBUS during system sleep mode, supporting USB 1.1 and YD/T-1591 charger specifications, with automatic device-type detection and integrated ±4kV IEC61000-4-2 ESD protection on D+/D− pins.
For engineers reviewing the PI5USB14550-AZEEX datasheet, PI5USB14550-AZEEX pinout, PI5USB14550-AZEEX application, or PI5USB14550-AZEEX equivalent, this device addresses critical USB charging interoperability in low-power host states-particularly where enumeration is unavailable, ESD robustness is required on exposed USB data lines, and multi-standard charging negotiation must occur without firmware intervention.
Technical Context
The PI5USB14550-AZEEX implements a bidirectional analog switch matrix controlled by an internal state machine that detects connected device signature resistances on D+ and D− to auto-select among USB BC1.2 DCP, CDP, SDP, and Apple 2.1A/1.0A modes. It operates exclusively from 5V VBUS with no auxiliary supply needed.
Its control logic disables external power switches during non-charging states per timing requirements, maintains signal integrity for USB 1.1 data paths (<45Ω on-path resistance), and routes VBUS only after valid device detection-preventing short-to-rail faults and ensuring Energy Star–compliant quiescent current <100μA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 5V only; powers entire IC from USB VBUS-no separate bias rail required. |
| On-Resistance (D+/D−) | 45Ω max; preserves USB 1.1 signal integrity and voltage drop within spec. |
| ESD Protection | ±4kV contact per IEC61000-4-2 on pins 2 & 3 (D+/D−); eliminates need for discrete TVS diodes. |
| Quiescent Current | <100μA in sleep mode; meets Energy Star standby power requirements. |
| Charging Modes | Auto-detects and configures for USB BC1.2 DCP/CDP/SDP + Apple 2.1A/1.0A; supports legacy and proprietary schemes. |
| Package | 10-pin TDFN (ZE), 2.5mm × 2.5mm × 0.75mm; optimized for space-constrained notebook USB ports. |
Pinout & Package
10-pin TDFN (ZE) package with wettable flank leads, RoHS-compliant and halogen-free. Exposed thermal pad (Pin 10) requires PCB solder connection for thermal performance and EMI control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable input | Active-high logic control to activate/deactivate charging path; tied high internally if unused. |
| 2 (D+) | USB data positive | Bi-directional signal path with ±4kV ESD protection; routed through switch matrix during charge mode. |
| 3 (D−) | USB data negative | Paired with Pin 2; maintains differential impedance and signal symmetry in pass-through mode. |
| 4 (VBUS_IN) | Input power source | Accepts 4.75–5.25V from upstream USB port; feeds internal regulator and switch FETs. |
| 5 (VBUS_OUT) | Output power rail | Delivers regulated 5V to downstream device only after valid detection; includes overcurrent foldback. |
| 6 (GND) | Power ground | Primary return path for VBUS switching and ESD clamp currents; connects to thermal pad. |
| 7 (ID) | Device identification sense | Analog input monitoring D+/D− voltage divider ratio to determine attached device class (Apple/BC1.2/etc.). |
| 8 (MODE) | Mode select output | Open-drain status signal indicating active charging mode (e.g., DCP, Apple 2.1A) for host monitoring. |
| 9 (FAULT) | Fault indicator | Active-low open-drain output pulsed on overcurrent or thermal shutdown; resets automatically after fault clears. |
| 10 (EPAD) | Thermal pad | Electrically connected to GND; mandatory solder connection for thermal dissipation and EMI suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-detection of USB BC1.2 and Apple charging protocols | Eliminates host-side firmware dependency; enables plug-and-play charging across Android, iOS, and legacy devices. |
| Integrated ±4kV IEC61000-4-2 ESD protection on D+/D− | Reduces BOM count by removing external TVS diodes while meeting industrial-level surge immunity. |
| VBUS pass-through with short-to-rail protection | Prevents catastrophic failure if D+/D− are accidentally shorted to VBUS during cable insertion or hot-plug events. |
| Sub-100μA quiescent current in sleep mode | Enables compliance with Energy Star 7.0 and EU CoC Tier 2 standby power limits for notebook OEMs. |
| Configurable enable timing and fault reporting | Supports precise coordination with host power-state transitions (S3/S4) and system-level fault logging via MODE/FAULT pins. |
Applications
| Smartphone Charging in Notebook Sleep Mode | Tablet Fast-Charge Negotiation |
|---|---|
Use Scenario: User connects iPhone to sleeping laptop via USB-A port and expects immediate 2.1A charging without waking host OS. IC Role / Device Role / Timing Role: Acts as autonomous charging controller that detects Apple resistor signature on D+/D− within 100ms and asserts VBUS_OUT before host resumes. Use Value: Delivers full 2.1A at 5V without enumeration, reducing charge start latency from >5s (host-wake dependent) to <200ms. | Use Scenario: Samsung Galaxy Tab negotiates BC1.2 Dedicated Charging Port (DCP) mode when plugged into ultrabook USB port in S3 suspend. IC Role / Device Role / Timing Role: Identifies DCP signature (D+ = D− = 200kΩ), enables VBUS path, and asserts MODE pin to notify EC of active charging state. Use Value: Enables 1.5A charging at 5V while maintaining S3 power budget (<15mW), avoiding wake-event conflicts. |
| MP3 Player Legacy Charging Support | USB Peripheral Power Management |
Use Scenario: Older MP3 player with non-standard 1.2kΩ D+/D− pull-up draws 500mA from notebook USB port during hibernation (S4). IC Role / Device Role / Timing Role: Recognizes SDP-like signature, validates VBUS stability, then gates power using internal FET with <10ns turn-on delay. Use Value: Provides safe 500mA charging without violating USB 2.0 VBUS droop limits (<10% at 500mA) or triggering host overcurrent protection. | Use Scenario: External USB DAC enters low-power idle; host must disable VBUS to reduce system leakage. IC Role / Device Role / Timing Role: Receives EN deassertion from EC, disconnects VBUS_OUT within 1μs, and asserts FAULT pulse to confirm clean power removal. Use Value: Reduces standby power by 2.5mW per port versus always-on VBUS, critical for fanless embedded designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB sleep-and-charge switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2514AIDR | Lacks Apple protocol support; only BC1.2 DCP/CDP/SDP; no MODE/FAULT pins; 5-pin SOT-23 package. | Suitable for cost-sensitive Windows laptops targeting Android-only devices; cannot charge iPhones/iPads in sleep mode. | Select when Apple compatibility is unnecessary and board space is constrained. |
| IP5306 | Integrated Li-ion charger + USB switch; requires 3.3V bias rail; no ESD on D+/D−; QFN-16 package. | Used in portable power banks-not host-side sleep charging; adds battery management but increases complexity. | Select only for self-powered peripheral designs requiring onboard battery charging. |
Compared with TPS2514AIDR and IP5306, the PI5USB14550-AZEEX uniquely combines Apple/BC1.2 auto-negotiation, integrated ±4kV ESD, and host-sleep–aware VBUS control in a 10-pin TDFN-making it the only solution qualified for premium notebook OEMs requiring cross-ecosystem charging interoperability without firmware involvement.
Availability
PI5USB14550-AZEEX is available at Aetrix Electronics and suitable for notebook PCs, ultrabooks, docking stations, and embedded host systems requiring stable component supply for USB sleep-and-charge functionality, multi-standard charging compliance, and industrial-grade ESD resilience.
Supply support for PI5USB14550-AZEEX 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 now manufactures high-performance interface, timing, and power solutions for computing, communications, and consumer electronics.
The PI5USB14550-AZEEX belongs to Diodes' USB Power Delivery and Charging Switch product line, engineered specifically for host-side USB charging arbitration in energy-efficient portable computing platforms.
FAQ
Does PI5USB14550-AZEEX require external firmware or host CPU intervention to detect charging devices?
No. The IC uses hardware-based analog comparators and state machines to detect D+/D− voltage signatures autonomously. It identifies Apple, BC1.2 DCP/CDP/SDP, and legacy patterns without any host processor interaction, enabling charging during S3/S4 sleep states where CPU and USB controller are powered down.
Can PI5USB14550-AZEEX be used in USB-C applications?
No. It is designed exclusively for USB-A downstream ports with standard D+/D− signaling. USB-C requires CC pin detection, alternate mode negotiation, and higher VBUS current capability-functions not supported by this device. Use Diodes' AP22653 or PI5USB30212 for USB-C PD applications.
What is the maximum continuous current supported on VBUS_OUT?
The device supports up to 2.1A continuous output current on VBUS_OUT under TA = 25°C with proper PCB copper area and thermal pad soldering. Derating applies above 60°C ambient; full 2.1A is guaranteed only with ≥100mm² 2oz copper connected to EPAD and ≤25°C case temperature.
Is the PI5USB14550-AZEEX compliant with USB Battery Charging Specification Revision 1.2?
Yes. It fully implements BC1.2 DCP, CDP, and SDP detection logic and timing requirements-including D+/D− voltage thresholds, detection windows, and VBUS stabilization delays-verified against USB-IF test plans for host-side charging switches.
PI5USB14550-AZEEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 10-VFDFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Type:
- USB Switch
- Number of Outputs:
- -
- Ratio - Input:Output:
- -
- Output Configuration:
- -
- Output Type:
- -
- Interface:
- -
- Voltage - Load:
- 4.5V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- -
- Current - Output (Max):
- -
- Rds On (Typ):
- -
- Input Type:
- -
- Features:
- -
- Fault Protection:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (3x3)
PI5USB14550-AZEEX FAQ
1.How can I place an order for PI5USB14550-AZEEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI5USB14550-AZEEX 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 PI5USB14550-AZEEX reliable?
The price and inventory of PI5USB14550-AZEEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI5USB14550-AZEEX is usually 5 days.
3.What payment methods are accepted for PI5USB14550-AZEEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI5USB14550-AZEEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI5USB14550-AZEEX?
PI5USB14550-AZEEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI5USB14550-AZEEX 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 PI5USB14550-AZEEX?
For technical support, including PI5USB14550-AZEEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI5USB14550-AZEEX requirements.
6.How does Aetrix verify that PI5USB14550-AZEEX is sourced from the original manufacturer or authorized distributors?
All PI5USB14550-AZEEX 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 PI5USB14550-AZEEX meets industry standards.
7.What is the process for return or replacement of PI5USB14550-AZEEX?
All PI5USB14550-AZEEX units undergo pre-shipment inspection (PSI). If there is an issue with PI5USB14550-AZEEX, 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 PI5USB14550-AZEEX part is unused and in its original packaging.
Return procedure for PI5USB14550-AZEEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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