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Diodes Incorporated AP43771HFBZ-13
- Part No.:
- AP43771HFBZ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Power Management - Specialized
- Package:
- 14-WFDFN Exposed Pad
- Datasheet:
-
AP43771HFBZ-13.pdf
- Description:
- ACDC DECODER W-DFN3030-14 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:5,975
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Product details
Overview
AP43771HFBZ-13 from Diodes Incorporated is a USB Type-C® Power Delivery 3.1 Extended Power Range (EPR) protocol controller in W-DFN3030-14 (Type A1) package, supporting up to 28V VBUS output with AVS resolution of 100mV/step, 16KB OTP + 1.5KB SRAM for firmware encryption, and CC1/CC2 short-to-VBUS protection up to 34V. It targets premium single-port offline USB PD chargers requiring EPR compliance, analog feedback control, and robust thermal/overvoltage safety.
For engineers reviewing the AP43771HFBZ-13 datasheet, AP43771HFBZ-13 pinout, AP43771HFBZ-13 application, or AP43771HFBZ-13 equivalent, key selection criteria include USB PD Rev 3.1 V1.6 TID=9275 certification, dual current-sense resistor options (5mΩ/10mΩ), built-in CV/CC loop control via OCDRV, and integrated OVP/UVP/SCP/OTP with auto-restart - all validated for 28V EPR adapter designs.
Technical Context
The AP43771H implements a digital USB PD 3.1 stack with hardware-assisted PD messaging, supporting Source Capabilities up to PDO5 (28V/5A), AVS voltage stepping, and e-Marker cable detection. Its analog control loop uses OCDRV (open-drain optocoupler driver), VFB (CV reference), and IFB (CC reference) pins to interface directly with external PWM controllers in flyback topologies.
It integrates a 5V LDO (V5V pin), OTP current source (7-pin) for NTC-based thermal monitoring, and dual CC line protection with ±34V absolute max rating on CC1/CC2. The device operates across -40°C to +85°C with 54°C/W θJA, and supports deep-sleep mode (<900μA ICC_DEEP) after cable detachment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB PD Compliance | USB PD Rev 3.1 V1.6 (TID = 9275), including EPR 28V profile and AVS 100mV/step control |
| VBUS Output Range | 5V–28V programmable via PDO negotiation; supports 28V EPR with analog feedback stability |
| Memory Resources | 16KB OTP for main firmware + 1.5KB SRAM for runtime encryption and dynamic configuration |
| Current Sense Options | Configurable 5mΩ or 10mΩ sense resistor; enables high-efficiency CC loop at low RDS(on) MOSFETs |
| OVP Thresholds | Programmable per PDO: VOVP5V = 6.0V, VOVP9V = 10.8V, VOVP20V = 24.0V (typ) |
| CC1/CC2 Protection | Withstands up to 34V DC short-to-VBUS - eliminates need for external TVS on CC lines in EPR adapters |
| Thermal Management | Internal OTP trip at +140°C with +25°C hysteresis; external NTC bias via OTP pin (100μA typ) |
Pinout & Package
Package: W-DFN3030-14 (Type A1), 3.0mm × 3.0mm × 0.75mm, matte tin-plated leads, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VBUS | Output discharge path terminal | High-side VBUS sensing node; rated -0.3V to +34V; connects to primary-side feedback network |
| 2 PWREN | External nMOS gate driver | Active-high control for external high-side switch; enables/disables VBUS path during PD negotiation or fault |
| 3 VCC | Main power supply input | 3.3–34V input; powers internal LDOs and logic; requires local ceramic decoupling |
| 4 ISENP | Current sense positive input | Connects to high-side shunt resistor; supports 5mΩ/10mΩ configurations for precise CC regulation |
| 5 OCDRV | Open-drain optocoupler driver | Drives FB pin of external PWM IC; implements analog CV/CC loop with zero-mismatch methodology |
| 6 GND | Analog/digital ground reference | Single ground plane required; separates power and signal return paths in layout |
| 7 OTP | NTC bias current source | 100μA constant current for external thermistor; enables accurate overtemperature shutdown at +140°C |
| 8 VFB | CV loop negative input | Reference node for 5V/9V/20V/28V CV regulation; sets target VBUS via resistor divider from optocoupler |
| 9 IFB | CC loop negative input | Reference node for constant-current limit; interfaces with secondary-side current sense amplifier |
| 10 CC2 | USB Type-C Configuration Channel 2 | Bi-directional PD communication line; protected to 34V against VBUS shorts |
| 11 CC1 | USB Type-C Configuration Channel 1 | Primary PD negotiation channel; supports Rd/Rp detection and e-Marker handshake |
| 12 DN | USB Type-C D− data line | USB 2.0 differential pair; includes 4.5V OVP threshold to prevent DP/DN latch-up |
| 13 DP | USB Type-C D+ data line | USB 2.0 differential pair; matched to DN for signal integrity; same OVP protection |
| 14 V5V | Integrated 5V LDO output | 1.8V/5V dual LDO; powers internal logic and optional external circuitry; no external regulator needed |
Key Features
| Feature | Design Value |
|---|---|
| Pin-to-pin upgrade from AP43771V | Enables drop-in replacement in existing W-DFN3030-14 designs without PCB rework or firmware changes |
| AVS-capable 28V EPR support | Delivers fine-grained 100mV/step voltage adjustment for adaptive charging of next-gen laptops and tablets |
| Enhanced CC1/CC2 short protection | Withstands 34V DC faults - eliminates risk of CC-line damage during EPR adapter hot-plug events |
| Dual current-sense resistor option | 5mΩ setting reduces conduction loss by ~50% vs. 10mΩ, improving efficiency in >65W adapters |
| Integrated OTP thermal management | Combines internal +140°C trip with external NTC bias (7-pin) for system-level thermal derating and fail-safe shutdown |
| e-Marker cable detection | Validates EPR-capable cables before enabling 28V output, preventing unsafe operation with legacy cables |
Applications
| USB PD 3.1 EPR Wall Adapter | Multi-Port GaN Charger |
|---|---|
|
Use Scenario: Single-port 100W wall adapter delivering [email protected] to ultrabooks with EPR support. IC Role / Device Role / Timing Role: Primary PD protocol controller and analog CV/CC feedback manager interfacing with flyback PWM IC via OCDRV/VFB/IFB. Use Value: Enables certified 28V EPR output with AVS stepping, eliminating need for external PD MCU and reducing BOM count by 30% vs. discrete controller solutions. |
Use Scenario: Dual-port 140W GaN charger dynamically allocating power between USB-C ports using shared PD controller resources. IC Role / Device Role / Timing Role: Central PD negotiation engine coordinating power allocation, managing CC line arbitration, and enforcing per-port OVP/UVP limits. Use Value: Leverages 1.5KB SRAM for concurrent PDO negotiation and real-time power budgeting, enabling seamless 28V/20V dual-output switching without renegotiation delay. |
| Industrial USB-C Power Hub | USB-C Monitor Power Supply |
|
Use Scenario: DIN-rail mounted USB-C hub powering industrial cameras, sensors, and PoE devices via 28V EPR rail. IC Role / Device Role / Timing Role: Robust PD controller with extended temperature range (-40°C to +85°C) and 34V CC-line protection for harsh environments. Use Value: Survives 34V transients from nearby motor drives or relay coils, ensuring uninterrupted PD negotiation in factory automation systems. |
Use Scenario: Integrated power supply in 4K USB-C monitors delivering 28V to internal display backlight and 15W to laptop via upstream port. IC Role / Device Role / Timing Role: Dual-role PD controller acting as both Source (to laptop) and Sink (from upstream host), managing bidirectional power flow. Use Value: Supports USB PD 3.1 bi-directional power with automatic role swap, enabling monitor-as-source functionality without auxiliary microcontroller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB PD 3.1 EPR controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STUSB4500QTR | Supports PD3.1 EPR but lacks AVS stepping; uses SPI interface instead of analog feedback; no built-in 5V LDO | Requires external MCU for PDO management and separate 5V regulator; better suited for digital-feedback architectures | Select when system already uses SPI-based PD stack and needs flexible firmware updates over OTP |
| IP2721 | PD3.1 EPR compliant with AVS, but only 512B SRAM; no CC1/CC2 34V protection; uses QFN-24 package | Larger footprint and lower thermal performance (θJA = 65°C/W); requires external TVS on CC lines for EPR reliability | Select for cost-sensitive multi-port designs where CC-line robustness is less critical than BOM cost |
Compared with STUSB4500QTR and IP2721, the AP43771HFBZ-13 uniquely combines analog feedback simplicity, 34V CC-line hardening, and 1.5KB SRAM for secure EPR firmware - making it optimal for compact, high-reliability 28V offline adapters without added MCU overhead.
Availability
AP43771HFBZ-13 is available at Aetrix Electronics and suitable for USB PD 3.1 EPR wall adapters, multi-port GaN chargers, and industrial USB-C power hubs requiring stable component supply, long lifecycle support, and RoHS-compliant manufacturing.
Supply support for AP43771HFBZ-13 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 ICs, specializing in power management, signal integrity, and connectivity solutions for consumer, industrial, and automotive markets.
The AP43771H belongs to Diodes' USB Power Delivery Controller product line, engineered specifically for high-efficiency, EPR-compliant AC-DC adapters that demand robust protection, minimal external components, and seamless migration from legacy PD2.0/PD3.0 designs.
FAQ
Is AP43771HFBZ-13 pin-compatible with AP43771V?
Yes - AP43771HFBZ-13 is a pin-to-pin upgrade from AP43771V in the same W-DFN3030-14 (Type A1) package. It retains identical pin assignments, electrical ratings, and footprint, allowing direct replacement with only minor CV/CC loop tuning due to improved Rsense support and enlarged SRAM.
What is the maximum VBUS output voltage supported?
The AP43771HFBZ-13 supports up to 28V VBUS output per USB PD 3.1 Extended Power Range (EPR) specification. It implements AVS (Adjustable Voltage Supply) with 100mV/step resolution, enabling precise voltage control across the full 5V–28V range for adaptive charging.
Does AP43771HFBZ-13 require an external microcontroller?
No - the AP43771HFBZ-13 integrates a complete USB PD 3.1 protocol stack, analog CV/CC control logic, and protection circuitry. It operates autonomously using its 16KB OTP firmware and 1.5KB SRAM, eliminating the need for an external MCU in standard single-port adapter designs.
How does the CC1/CC2 short-to-VBUS protection work?
The AP43771HFBZ-13 features reinforced ESD and overvoltage structures on CC1 and CC2 pins, rated to withstand continuous 34V DC exposure to VBUS. This prevents latch-up or permanent damage during EPR adapter hot-plug events or foreign object intrusion, removing reliance on external TVS diodes.
AP43771HFBZ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 14-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- USB Type C
- Current - Supply:
- 3.3mA
- Voltage - Supply:
- 3.3V ~ 34V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- W-DFN3030-14 (Type A1)
AP43771HFBZ-13 FAQ
1.How can I place an order for AP43771HFBZ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP43771HFBZ-13 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 AP43771HFBZ-13 reliable?
The price and inventory of AP43771HFBZ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP43771HFBZ-13 is usually 5 days.
3.What payment methods are accepted for AP43771HFBZ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP43771HFBZ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP43771HFBZ-13?
AP43771HFBZ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP43771HFBZ-13 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 AP43771HFBZ-13?
For technical support, including AP43771HFBZ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP43771HFBZ-13 requirements.
6.How does Aetrix verify that AP43771HFBZ-13 is sourced from the original manufacturer or authorized distributors?
All AP43771HFBZ-13 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 AP43771HFBZ-13 meets industry standards.
7.What is the process for return or replacement of AP43771HFBZ-13?
All AP43771HFBZ-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP43771HFBZ-13, 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 AP43771HFBZ-13 part is unused and in its original packaging.
Return procedure for AP43771HFBZ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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