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Alpha & Omega Semiconductor Inc. AOZ1380DI-01
- Part No.:
- AOZ1380DI-01
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package:
- 20-PowerVFDFN
- Datasheet:
-
AOZ1380DI-01.pdf
- Description:
- IC USB TYPE-C PROT SWITCH 20DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,377
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Product details
Overview
AOZ1380DI-01 from Alpha & Omega Semiconductor is a dual-function USB Type-C PD protection switch integrating independent 20mΩ sink and 39mΩ source back-to-back N-channel MOSFETs in a single DFN-20L package. It delivers 10A continuous sink current, 3.4–22V sink input range, and programmable 500mA–3.5A source current limit for notebook and ultrabook power delivery systems requiring Fast Role Swap (FRS) and True Reverse Current Blocking (TRCB).
For engineers reviewing the AOZ1380DI-01 datasheet, pinout, applications, or equivalent options, this device supports critical USB-C PD system-level functions including dead-battery sink enable, FRS-triggered fast turn-on (<100µs), auto-recovery fault handling, and dual-mode thermal/overvoltage/overcurrent protection with open-drain FLTB_SNK and FLTB_SRC flags.
Technical Context
The AOZ1380DI-01 implements two independent gate-drive control paths: one for sink mode (ENB_SNK active-low, SS_SNK-programmable soft-start, POVP-configurable OVP at 5.8V or 24V) and one for source mode (EN_SRC active-high, FON-enabled Fast Role Swap, ILIM-settable OCP). Each path uses back-to-back N-MOSFETs to enforce True Reverse Current Blocking - sinking TRCB triggers at VCHG ≥ VBUS + 26mV (500ns response), sourcing TRCB at VBUS ≥ V5V + 25mV (600ns response).
Thermal shutdown activates at 140°C (30°C hysteresis), UVLO engages at 3.25V (sink) and 3.25V (source) with 200–250mV hysteresis, and fault reporting uses two dedicated open-drain outputs: FLTB_SNK asserts on sink OVP, TRCB, or thermal fault; FLTB_SRC asserts on source OCP, SCP, or thermal fault. The EXP thermal pad is electrically isolated and must be soldered to multi-layer floating copper for θJA = 36°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sink ON Resistance | 20mΩ - enables ≤10A continuous conduction with <200mW conduction loss at 10A |
| Source ON Resistance | 39mΩ - supports 3.5A source current with <1.4W conduction loss at full load |
| Sink Operating Range | 3.4V–22V VBUS - covers full USB PD 3.0 voltage range including 20V PPS profiles |
| Source Operating Range | 3.4V–5.5V V5V - compatible with 5V buck-regulated bus and battery-backed supplies |
| TRCB Threshold (Sink) | VCHG ≥ VBUS + 26mV - prevents reverse leakage into host port during battery charging |
| TRCB Threshold (Source) | VBUS ≥ V5V + 25mV - blocks reverse current when VBUS is pre-biased (e.g., hot-plug) |
| Fast Turn-On Time | 50–100µs with FON high - meets USB PD Fast Role Swap timing requirements |
| Package | DFN3x5.2-20L - 3mm × 5.2mm footprint with exposed thermal pad for PCB-level thermal management |
Pinout & Package
AOZ1380DI-01 is housed in a 3mm × 5.2mm DFN-20L package with an electrically isolated exposed thermal pad (EXP) that serves as the common drain node of both sink MOSFETs and must be connected to multi-layer floating copper via multiple vias for optimal thermal performance (θJA = 36°C/W on AOS evaluation board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1,10) | Ground reference | Primary return path for all internal logic and gate drivers; requires low-impedance PCB connection |
| ILIM (Pin 2) | Source current limit setting | Connects external resistor to GND to set OCP threshold from 500mA to 3.5A (e.g., 14.3kΩ = 1A) |
| V5V (Pins 3,4) | Source mode input supply | Accepts 3.4–5.5V input; powers source-path control circuitry and gate driver |
| VCHG (Pins 5,6) | Sink mode output | Delivers regulated VBUS-derived power to battery charger IC; rated 28V absolute max |
| POVP (Pin 7) | Sink overvoltage threshold select | GND = 24V OVP; floating = 5.8V OVP - configures protection level for different PD profiles |
| FLTB_SNK (Pin 8) | Sink fault flag | Open-drain output pulled low on sink OVP, TRCB, or thermal fault; requires external pull-up |
| ENB_SNK (Pin 9) | Sink enable (active low) | Enables sink path when ≤0.6V; supports dead-battery operation with external pull-down |
| SS_SNK (Pin 11) | Sink soft-start timing | Connects external capacitor to set VCHG ramp time (e.g., 5.6nF → ~1.9ms rise) |
| VBUS (Pins 14–17) | Common power bus | Shared terminal for sink (VBUS→VCHG) and source (V5V→VBUS) paths; rated 28V abs max |
| EN_SRC (Pin 18) | Source enable (active high) | Enables source path when ≥1.4V; synchronized with FON for Fast Role Swap |
| FLTB_SRC (Pin 19) | Source fault flag | Open-drain output pulled low on source OCP, SCP, or thermal fault; requires external pull-up |
| FON (Pin 20) | Fast Role Swap control | High signal disables internal soft-start and reduces turn-on delay to <100µs for FRS compliance |
| EXP | Exposed thermal pad | Electrically isolated common drain node; must be soldered to multi-layer thermal copper with vias |
Key Features
| Feature | Design Value |
|---|---|
| True Reverse Current Blocking (TRCB) | 26mV sink / 25mV source trip threshold with sub-600ns response - prevents reverse leakage during hot-plug or battery backup |
| Fast Role Swap (FRS) support | FON-controlled turn-on <100µs - meets USB PD specification for role swap latency under 200µs |
| Programmable sink overvoltage protection | 5.8V or 24V selectable via POVP pin - adapts to legacy 5V or full PD 20V operation |
| Adjustable source current limit | 500mA–3.5A via ILIM resistor - enables precise OCP tuning for diverse load profiles |
| Auto-recovery fault handling | 64ms restart interval after fault clear - maintains system uptime without host intervention |
| IEC 61000-4-2 ±8kV ESD on VBUS | Robust front-end protection - eliminates need for external TVS diodes in many designs |
Applications
| USB-C PD Notebook Power Switch | Ultrabook Fast Role Swap Interface |
|---|---|
Use Scenario: Dual-role laptop supporting simultaneous charging and peripheral power delivery via single USB-C port. IC Role / Device Role / Timing Role: AOZ1380DI-01 acts as bidirectional power path controller - sinking 20V/3A from adapter while sourcing 5V/2A to dock, with FRS enabling sub-200µs role transition. Use Value: Eliminates need for separate sink/source ICs and discrete FRS logic, reducing BOM count and PCB area by >40% versus discrete solutions. |
Use Scenario: Thin-and-light ultrabook performing rapid power role reversal during docking/undocking events. IC Role / Device Role / Timing Role: AOZ1380DI-01 executes Fast Role Swap using FON pin to bypass soft-start and achieve <100µs VBUS ramp, meeting USB PD 3.0 FRS timing. Use Value: Enables seamless user experience with zero perceptible delay during dock transitions, avoiding system brown-out or port reset. |
| Thunderbolt™ 4 Host Port Protection | Portable Device PD Controller Interface |
Use Scenario: Thunderbolt 4 host system requiring robust 20V/5A power delivery with integrated overvoltage and reverse-current blocking. IC Role / Device Role / Timing Role: AOZ1380DI-01 provides sink-side protection with 24V OVP (POVP=GND) and TRCB, isolating host from cable-induced transients and reverse injection. Use Value: Meets IEC 62368-1 safety requirements and eliminates risk of damage from miswired or faulty cables during high-power operation. |
Use Scenario: Portable monitor or portable SSD implementing USB-C PD contract negotiation and local power routing. IC Role / Device Role / Timing Role: AOZ1380DI-01 serves as source-mode power switch (V5V→VBUS) with adjustable 1A OCP and thermal shutdown, protecting internal 5V rail during cable insertion. Use Value: Prevents inrush-induced voltage droop on shared 5V bus and avoids system reset during hot-plug, improving reliability in field use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-C PD bidirectional power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65987D | Integrated PD controller + MCU + power switches; larger QFN-48 package; requires firmware configuration | Full PD 3.0 policy engine with USB-C CC logic; supports alternate modes and VDM | Select when full PD protocol stack and USB-C enumeration are required; not suitable for simple power-path-only designs |
| RT1719E | Dual 22mΩ/45mΩ switches in 4×4mm QFN-24; no FON pin; fixed 6V OVP; 1.2A max source current | Limited to 5V-only source operation; lacks Fast Role Swap capability and programmable OVP | Select for cost-sensitive 5V-only applications where FRS and wide-voltage sink are unnecessary |
Compared with TPS65987D and RT1719E, AOZ1380DI-01 offers the only combination of 20mΩ sink RDS(on), 24V programmable OVP, and hardware-accelerated FRS in a compact 3×5.2mm DFN - making it optimal for space-constrained, high-efficiency PD power-path designs without embedded controller overhead.
Availability
AOZ1380DI-01 is available at Aetrix Electronics and suitable for USB-C PD notebook power delivery, ultrabook Fast Role Swap interfaces, and Thunderbolt™ 4 host port protection requiring stable component supply, automotive-grade reliability, and long-term lifecycle continuity.
Supply support for AOZ1380DI-01 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
Alpha & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in high-performance MOSFETs, power ICs, and advanced packaging for power efficiency and thermal management.
The AOZ1380DI-01 belongs to AOS's USB-C PD protection switch product line, designed specifically for compact, high-current bidirectional power routing in portable computing and docking systems with strict size and thermal constraints.
FAQ
What is the maximum continuous current rating for AOZ1380DI-01 in sink mode?
The AOZ1380DI-01 supports 10A continuous current in sink mode with 20mΩ RDS(on), verified across the full -40°C to +85°C operating temperature range. This rating assumes proper PCB thermal design using the EXP pad with multi-layer copper and ≥6 thermal vias. Peak pulsed current reaches 20A for 10ms at 2% duty cycle per SOA curve validation.
How does AOZ1380DI-01 implement True Reverse Current Blocking (TRCB) in source mode?
In source mode, AOZ1380DI-01 monitors VBUS relative to V5V and triggers TRCB when VBUS exceeds V5V by 25mV (VT_TRCB_SRC), turning off the source switch within 600ns. Recovery occurs when V5V exceeds VBUS by 40mV (VR_TRCB_SRC), with 65mV hysteresis ensuring noise immunity. This behavior is fully hardware-based and requires no external control.
Can AOZ1380DI-01 support USB PD Fast Role Swap (FRS) without firmware intervention?
Yes - AOZ1380DI-01 implements hardware-accelerated FRS via the FON pin. When FON is driven high before EN_SRC activation, the device bypasses internal soft-start and achieves VBUS turn-on in 50–100µs, meeting USB PD 3.0 FRS timing requirements without MCU involvement or firmware updates.
What is the purpose of the POVP pin on AOZ1380DI-01, and how is it configured?
The POVP pin selects the sink-mode overvoltage protection threshold: connecting POVP to GND sets OVP at 24V (for full PD 20V operation), while leaving it floating sets OVP at 5.8V (for legacy 5V-only applications). An internal 8µA current source establishes the threshold, eliminating need for external resistive dividers.
Does AOZ1380DI-01 require external components for basic operation in sink mode?
Yes - AOZ1380DI-01 requires three external components for functional sink operation: a pull-down resistor on ENB_SNK for dead-battery enable, a soft-start capacitor (CSS) on SS_SNK to control VCHG ramp rate, and a pull-up resistor on FLTB_SNK for fault reporting. No external gate resistors or bootstrap capacitors are needed due to integrated charge pumps.
AOZ1380DI-01 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 20-PowerVFDFN
- 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:
- 3.4V ~ 22V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 10A
- Rds On (Typ):
- 39mOhm
- Input Type:
- Non-Inverting
- Features:
- Auto Restart, Slew Rate Controlled, Status Flag
- Fault Protection:
- Over Temperature, Over Voltage, Short Circuit, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-DFN-EP (3x5.2)
AOZ1380DI-01 FAQ
1.How can I place an order for AOZ1380DI-01 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ1380DI-01 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 AOZ1380DI-01 reliable?
The price and inventory of AOZ1380DI-01 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ1380DI-01 is usually 5 days.
3.What payment methods are accepted for AOZ1380DI-01?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ1380DI-01 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ1380DI-01?
AOZ1380DI-01 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ1380DI-01 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 AOZ1380DI-01?
For technical support, including AOZ1380DI-01 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ1380DI-01 requirements.
6.How does Aetrix verify that AOZ1380DI-01 is sourced from the original manufacturer or authorized distributors?
All AOZ1380DI-01 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 AOZ1380DI-01 meets industry standards.
7.What is the process for return or replacement of AOZ1380DI-01?
All AOZ1380DI-01 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ1380DI-01, 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 AOZ1380DI-01 part is unused and in its original packaging.
Return procedure for AOZ1380DI-01:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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