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Alpha & Omega Semiconductor Inc. AOZ13287DI-01
- Part No.:
- AOZ13287DI-01
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package:
- 17-PowerVFDFN
- Datasheet:
-
AOZ13287DI-01.pdf
- Description:
- 22V IDEAL DIODE SINK SWITCH AUTO
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AOZ13287DI-01 from Alpha & Omega Semiconductor is a high-side smart protection switch with integrated TVS diode, designed for reverse current blocking and surge protection in USB Type-C PD power delivery paths. It delivers 13 A continuous sink current, 9 mΩ typical RON, and supports 3.4–22 V input range with 28 V absolute maximum ratings on VIN/VOUT - deployed in multi-port Type-C PD current sinking applications.
For engineers reviewing the AOZ13287DI-01 datasheet, pinout, applications, or equivalent options, key selection considerations include programmable soft-start timing, IDTRCB regulation voltage (35 mV), IEC61000-4-2/4-5 surge immunity, thermal shutdown at 140 °C, and fault flag behavior on FLTB pin during OVP/TSD events.
Technical Context
The AOZ13287DI-01 integrates back-to-back MOSFETs to enable True Reverse Current Blocking (IDTRCB) with 35 mV regulation and 50 mV fast threshold detection, plus a dedicated TVS diode on Pin 8 (VIN_TVS) referenced to Pin 9 (GND_TVS). Its control logic implements auto-restart short-circuit protection during soft-start with 64 ms recovery time and latched OVP/TSD faults signaled via open-drain FLTB.
Soft-start slew rate is externally programmable via CSS capacitor on SS pin, enabling linear VOUT ramp-up; EN is active-high with 1.4 V threshold and internal 475–985 kΩ pull-down. The device operates across –40 °C to +125 °C junction temperature using a thermally enhanced DFN3.2×5.5-17L package with exposed pad (EXP) tied to common drain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Sink Current | 13 A - sustains full-load operation without derating under thermal design conditions. |
| Peak Surge Current | 22.5 A for 10 ms at 2% duty cycle - handles CPU/GPU transient bursts in high-end laptops. |
| ON Resistance | 9 mΩ typical at 20 V - minimizes conduction loss and thermal rise at 13 A (1.5 W dissipation). |
| Input Voltage Range | 3.4 V to 22 V - covers USB PD 3.0 (5–20 V) and legacy barrel-jack adapters. |
| IDTRCB Regulation | 35 mV VIN–VOUT drop - ensures zero reverse current flow even under light/no load. |
| Surge Protection | IEC61000-4-5: 30 A (8/20 µs), 33.5 V clamp - integrated TVS eliminates external protection components. |
| UVLO Threshold | 3.35 V rising - prevents erratic turn-on during brown-out or cold-start conditions. |
| Thermal Shutdown | 140 °C - latched fault with FLTB low; requires EN toggle or power cycle for recovery. |
Pinout & Package
AOZ13287DI-01 uses a thermally enhanced DFN3.2×5.5-17L package with exposed thermal pad (EXP) electrically isolated and connected to common drain of internal back-to-back MOSFETs. Pin 14 (DNC) is internally tied to EXP and must not be connected externally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SS (Pin 1) | Soft-start timing control | Connects external capacitor (CSS) to GND to set VOUT ramp time; enables inrush current limiting. |
| FLTB (Pin 2) | Fault indicator output | Open-drain signal pulled low for OVP, TSD, or startup SCP; high-impedance for IDTRCB fault. |
| VIN (Pins 4–7) | Main input power rail | Primary connection point for adapter input; requires 10 µF ceramic capacitor to GND. |
| VIN_TVS (Pin 8) | TVS anode terminal | Dedicated input node for integrated TVS diode; must be routed separately from main VIN pins. |
| GND_TVS (Pin 9) | TVS cathode reference | Ground return for TVS diode; must be shorted to Pin 17 and isolated from main GND plane. |
| VOUT (Pins 10–13) | Protected output rail | Delivers regulated power to downstream PD controller/load; supports up to 13 A continuous. |
| EN (Pin 16) | Enable control input | Active-high logic interface (1.4 V threshold); draws only 25 µA in shutdown state. |
| EXP (Exposed Pad) | Common drain / thermal path | Must be soldered to isolated copper pour with multiple vias to inner/ground layers for ΘJC = 1.4 °C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Ideal Diode True Reverse Current Blocking (IDTRCB) | Prevents any reverse current flow from VOUT to VIN under all conditions, including no-load and hot-swap scenarios. |
| Integrated TVS Diode | Eliminates need for external surge protection: meets IEC61000-4-2 (±30 kV) and IEC61000-4-5 (30 A, 33.5 V clamp). |
| Programmable Soft-Start | Adjusts VOUT ramp time via external CSS capacitor to limit inrush into large output capacitances (e.g., >1000 µF). |
| Auto-Restart Short-Circuit Protection | Shuts down for 64 ms after startup SCP detection, then retries - enables robust operation with high-COUT systems. |
| Multi-Fault Flagging on FLTB | Differentiates fault types: low for OVP/TSD/latched SCP; high-impedance for IDTRCB - simplifies system-level diagnostics. |
| Thermally Optimized DFN Package | DFN3.2×5.5-17L with isolated EXP pad achieves 1.4 °C/W junction-to-case thermal resistance for high-power density designs. |
Applications
| Thunderbolt/USB Type-C PD Power Switch | Notebook Computer Barrel Jack |
|---|---|
Use Scenario: Dual-input power path management in premium ultrabooks supporting both USB-C PD and legacy DC barrel jack. IC Role / Device Role / Timing Role: High-side protection switch enforcing reverse current blocking and surge immunity on shared VBUS rail. Use Value: Enables seamless input source arbitration without cross-conduction; integrated TVS removes 2–3 discrete components per port. |
Use Scenario: Input protection for 19–20 V DC adapters in compact notebook designs where board space is constrained. IC Role / Device Role / Timing Role: Smart OR-ing switch with programmable soft-start to prevent inrush into motherboard bulk capacitance. Use Value: Eliminates need for external Schottky diode and TVS; 9 mΩ RON reduces dropout and heat vs. discrete solutions. |
| Docking Stations / Dongles | Power ORing Applications |
Use Scenario: Multi-port USB-C docking station delivering up to 100 W to laptop while powering peripherals and video outputs. IC Role / Device Role / Timing Role: Per-port ideal diode with IDTRCB and OVP to isolate faults and maintain system uptime during hot-plug events. Use Value: Prevents backfeed from powered peripherals into adapter; 22.5 A surge rating supports GPU-accelerated workloads. |
Use Scenario: Redundant 12–20 V power supplies feeding single load in industrial controllers or telecom equipment. IC Role / Device Role / Timing Role: High-current OR-ing controller ensuring automatic switchover with <0.5 µs reverse current blocking delay. Use Value: Achieves true zero reverse leakage and fast fault isolation - critical for N+1 redundant architectures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side protection switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS259472ARPTR | Lower 6.5 mΩ RON, but no integrated TVS; requires external surge protection components. | Lacks IEC61000-4-5 compliance out-of-box; suitable for cost-sensitive designs with controlled ESD environments. | Choose when lowest conduction loss is prioritized and PCB area allows external TVS + RC filter. |
| RTQ2132BGQW | Higher 12 mΩ RON, 10 A continuous rating, and no IDTRCB - relies on external reverse-blocking diode. | Designed for simpler OR-ing without true reverse current blocking; lacks fast TRCB comparator. | Prefer for basic redundancy where reverse current is blocked externally and surge requirements are less stringent. |
Compared with TPS259472ARPTR and RTQ2132BGQW, AOZ13287DI-01 uniquely combines integrated TVS, IDTRCB, and 22.5 A surge capability in one DFN package - reducing BOM count and layout complexity for USB-C PD systems requiring robust fault containment.
Availability
AOZ13287DI-01 is available at Aetrix Electronics and suitable for Thunderbolt/USB Type-C PD power switches, notebook computer barrel jack interfaces, docking stations/dongles, and power ORing applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AOZ13287DI-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-efficiency MOSFETs, power ICs, and integrated solutions for power conversion and protection.
The AOZ13287DI-01 belongs to AOS's ECPower™ family of smart power switches, engineered specifically for USB Type-C PD and high-current portable computing applications demanding integrated surge protection and true reverse current blocking.
FAQ
What is the purpose of the separate VIN_TVS and GND_TVS pins on AOZ13287DI-01?
The VIN_TVS (Pin 8) and GND_TVS (Pin 9) pins provide a dedicated, isolated path for the integrated TVS diode - decoupling surge clamping from the main power path. This prevents noise coupling into the protected VOUT rail and ensures IEC61000-4-5 compliance without affecting regulation accuracy. AOZ13287DI-01 requires these pins to be routed separately from main VIN/GND nets and shorted only at the package level via PCB traces.
How does AOZ13287DI-01 implement Ideal Diode True Reverse Current Blocking (IDTRCB)?
AOZ13287DI-01 uses dual comparators and dynamic gate drive to enforce two-tier reverse current blocking: a 35 mV regulation loop maintains precise VIN–VOUT differential under load, and a 50 mV fast threshold comparator triggers sub-microsecond shutdown if VOUT exceeds VIN. This ensures zero reverse current under all conditions - including hot-swap, no-load, and transient overvoltage - without external components. The AOZ13287DI-01 achieves this via internal back-to-back MOSFET architecture.
Can AOZ13287DI-01 be used in 5 V-only applications such as USB 2.0/3.0 bus power switching?
Yes - AOZ13287DI-01 supports input voltages as low as 3.4 V, making it compatible with 5 V USB bus power switching. Its 9 mΩ RON yields only 45 mV dropout at 5 A, well within USB specification limits. However, its 13 A rating and 22.5 A surge capability are over-specified for standard USB ports; it is optimized for higher-power USB-C PD use cases where those margins ensure reliability during transients.
What is the recommended layout practice for the EXP (exposed pad) on AOZ13287DI-01?
The EXP pad on AOZ13287DI-01 must be connected to an electrically isolated copper pour on the top layer, linked via ≥8 thermal vias (0.3 mm diameter) to inner ground or dedicated thermal planes - never to signal or power nets. All vias must be tented on the opposite side. The bottom-layer thermal island should be larger than the top, and total copper area across layers must exceed 200 mm² to achieve rated ΘJC = 1.4 °C/W. AOZ13287DI-01 thermal performance degrades significantly if EXP is left floating or improperly isolated.
Does AOZ13287DI-01 support daisy-chained fault reporting across multiple devices?
No - AOZ13287DI-01 features a single open-drain FLTB pin that cannot be wire-OR'd with other devices without external logic. Each AOZ13287DI-01 requires individual pull-up and MCU GPIO monitoring. The FLTB pin asserts low for OVP, TSD, and startup SCP, but remains high-impedance during IDTRCB events - so daisy-chaining would mask reverse-current faults. For multi-rail systems, discrete GPIOs or I²C monitor ICs are required to aggregate AOZ13287DI-01 fault status.
AOZ13287DI-01 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 17-PowerVFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- 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):
- 13A
- Rds On (Typ):
- 9.5mOhm
- Input Type:
- Non-Inverting
- Features:
- Slew Rate Controlled, Status Flag
- Fault Protection:
- Current Limiting (Adjustable), Over Temperature, Over Voltage, Reverse Current, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 17-DFN (3.2x5.5)
AOZ13287DI-01 FAQ
1.How can I place an order for AOZ13287DI-01 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ13287DI-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 AOZ13287DI-01 reliable?
The price and inventory of AOZ13287DI-01 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ13287DI-01 is usually 5 days.
3.What payment methods are accepted for AOZ13287DI-01?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ13287DI-01 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ13287DI-01?
AOZ13287DI-01 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ13287DI-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 AOZ13287DI-01?
For technical support, including AOZ13287DI-01 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ13287DI-01 requirements.
6.How does Aetrix verify that AOZ13287DI-01 is sourced from the original manufacturer or authorized distributors?
All AOZ13287DI-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 AOZ13287DI-01 meets industry standards.
7.What is the process for return or replacement of AOZ13287DI-01?
All AOZ13287DI-01 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ13287DI-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 AOZ13287DI-01 part is unused and in its original packaging.
Return procedure for AOZ13287DI-01:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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