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Diodes Incorporated AP43771VDKZ-13
- Part No.:
- AP43771VDKZ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Controllers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
AP43771VDKZ-13.pdf
- Description:
- ACDC DECODER,W-QFN4040-24,T&R,3K
- Quantity:
- Payment:
- Shipping:
Inventory:2,763
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Product details
Overview
AP43771VDKZ-13 from Diodes Incorporated is a USB Type-C® Power Delivery (PD) Rev3.1 V1.2 controller with integrated 8-bit 1T 8051-compatible MCU, supporting PPS up to 21V at 20mV/step voltage resolution and 50mA/step current resolution. It delivers dual-port smart power sharing via I²C interface, embeds cable-loss compensation and e-Marker detection, and provides OVP/OCP/SCP/OTP protection for USB PD adapters and multi-port chargers.
For engineers reviewing the AP43771VDKZ-13 datasheet, AP43771VDKZ-13 pinout, AP43771VDKZ-13 application, or AP43771VDKZ-13 equivalent, key selection criteria include I²C-enabled multi-port coordination, OTP-based temperature monitoring, CV/CC control loop architecture, and support for QC4/4+/QC5 protocols alongside USB BC1.2 and HVDCP.
Technical Context
The AP43771VDKZ-13 implements a dual-loop CV/CC control architecture using dedicated VFB (CV feedback) and IFB (CC feedback) pins, with OCDRV providing open-drain optocoupler drive output. Its embedded MCU executes real-time PD negotiation, SOP command handling for e-Marker cables, and dynamic power re-allocation across I²C-connected ports.
It integrates an 8-bit SAR ADC for sensing VBUS, temperature (via OTP 100μA current source), and current sense (ISENP), enabling adaptive cable-loss compensation and thermal foldback. The device operates from 3.3V–24V supply and supports zero-mismatch voltage transition during PDO switching to meet USB PD electrical timing requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB PD Compliance | Rev3.1 V1.2 certified (TID: 4305), including full PPS support up to 21V |
| PPS Resolution | 20mV/step voltage, 50mA/step current - enables precise battery charging profiles |
| Operating Voltage | 3.3V to 24V VCC - supports wide-input AC/DC adapter designs |
| Protection Features | OVP (5.6–16.2V thresholds), UVP, SCP, OTP (140°C trip), auto-restart recovery |
| I²C Interface | Present only on W-QFN4040-24 package - enables master/slave coordination in dual-port systems |
| Current Sensing | 10mΩ external shunt compatible - optimized for high-efficiency, low-loss sensing |
| Thermal Management | θJA = 28°C/W (W-QFN4040-24) - supports compact, thermally constrained charger PCB layouts |
Pinout & Package
AP43771VDKZ-13 is supplied in W-QFN4040-24 (Type A1) package, a 4.0mm × 4.0mm, 0.5mm pitch, thermally enhanced lead-free QFN with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ISENP | Current Sense Positive Input | Connects to high-side of 10mΩ shunt resistor for CC loop sensing |
| OCDRV | Open-Drain CV/CC Output | Drives optocoupler LED to regulate primary-side PWM IC via feedback isolation |
| GND | Power & Signal Ground | Common reference for analog/digital blocks and thermal pad connection |
| SDA / SCL | I²C Data/Clock | Enable inter-device communication for dual-port power arbitration (master/slave) |
| GPIO1–GPIO5 | Configurable Digital I/O | Support status signaling, firmware update triggers, or auxiliary control logic |
| V3VD | 3V LDO Output | Provides regulated 3V supply for external logic or level-shifting circuits |
| V5V | 5V LDO Output | Supplies 5V to CC logic, DP/DN PHY, and internal digital core |
| CC1 / CC2 | Type-C Configuration Channel | Detect cable orientation, sink/source role, and e-Marker presence via BMC signaling |
| DP / DN | USB 2.0 Data Lines | Support legacy BC1.2 and HVDCP (QC2–5, AFC, FCP) protocol handshaking |
| OTP | 100μA Current Source | Drives NTC for real-time temperature monitoring and thermal foldback |
| PWR_EN | nMOS Gate Driver Output | High-voltage charge-pump output to drive external high-side nMOS switch |
| VBUS | Discharge Path Terminal | Internal ~200mA sink discharges VBUS during PDO transitions or fault conditions |
| VFB / IFB | CV/CC Feedback Inputs | Accept resistor-divider voltage for CV regulation and shunt voltage for CC regulation |
Key Features
| Feature | Design Value |
|---|---|
| I²C Multi-Port Coordination | Enables dynamic power re-allocation between two Type-C ports using master/slave firmware architecture |
| Embedded 8-bit 1T 8051 MCU | Executes full PD3.1 stack, SOP commands, and custom power management algorithms without external host |
| Cable-Loss Compensation | Adjustable 22–42mV/A compensation applied to CV loop to maintain target VBUS at connector |
| Zero-Mismatch Voltage Transition | Ensures monotonic VBUS ramp during PDO changes - eliminates overshoot violating USB PD spec |
| Integrated 8-bit SAR ADC | Monitors VBUS, OTP current, and ISENP for closed-loop thermal and current protection |
Applications
| Multi-Port USB PD Charger | Smart Wall Adapter |
|---|---|
Use Scenario: Dual Type-C port wall charger dynamically allocating 65W total power between laptop (20V/3A) and phone (9V/3A) based on real-time demand. IC Role / Device Role / Timing Role: Acts as master PD controller coordinating with slave AP43771VDKZ-13 via I²C to negotiate and reconfigure PDOs within USB PD timing windows. Use Value: Eliminates need for separate microcontroller; achieves <50ms PDO reconfiguration while maintaining USB-IF compliance. | Use Scenario: Compact 30W single-port travel adapter supporting PPS for fast-charging smartphones with variable voltage profiles. IC Role / Device Role / Timing Role: Implements full PD3.1 + QC5 stack with 20mV/step PPS resolution and <100μs OVP response (<50μs gate turn-off). Use Value: Enables 0–21V continuous PPS output with ±1% CV accuracy and ±2% CC accuracy over temperature. |
| USB PD + HVDCP Hybrid Adapter | Industrial USB-C Power Hub |
Use Scenario: Universal adapter supporting both USB PD negotiation and legacy QC4+/AFC/FCP devices via DP/DN pins. IC Role / Device Role / Timing Role: Integrates dual-protocol PHY: BMC on CC lines for PD, and D+/D− signaling for HVDCP handshake with sub-10ms latency. Use Value: Maintains backward compatibility while delivering up to 100W via PD - no firmware switch required. | Use Scenario: DIN-rail mounted USB-C hub powering industrial sensors, cameras, and controllers with strict thermal limits. IC Role / Device Role / Timing Role: Uses OTP pin-driven NTC monitoring and ADC-based thermal foldback to limit junction temperature to ≤125°C under sustained load. Use Value: Enables fanless operation in 70°C ambient environments with automatic derating below 140°C OTP threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB PD controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STUSB4500QTR | Standalone PD controller (no embedded MCU); requires external host for PPS and multi-port logic | Lacks I²C master/slave coordination and firmware-updatable power profiles | Select when system already includes ARM Cortex-M host managing multiple PD ports |
| IP2721 | Integrated buck controller + PD PHY; no separate CV/CC optocoupler drive (OCDRV) | Designed for self-contained secondary-side regulation - not compatible with isolated flyback topologies | Select for non-isolated DC-DC or GaN-based direct-conversion architectures |
Compared with STUSB4500QTR and IP2721, AP43771VDKZ-13 uniquely combines embedded MCU execution, isolated OCDRV optocoupler drive, and I²C-based multi-port arbitration - making it optimal for cost-sensitive, isolated flyback USB PD adapters requiring field-programmable thermal and power behavior without external host intervention.
Availability
AP43771VDKZ-13 is available at Aetrix Electronics and suitable for multi-port USB PD chargers, smart wall adapters, and industrial USB-C power hubs requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for AP43771VDKZ-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 AP43771V product line targets high-performance, cost-optimized USB Type-C PD adapter designs - emphasizing integration of protocol stack, analog control loops, and thermal intelligence into a single QFN package.
FAQ
What firmware version is preloaded on AP43771VDKZ-13?
AP43771VDKZ-13 ships with customizable firmware supporting I²C-based dual-port coordination and PPS profile configuration. Unlike AP43771VFBZ-13-FR01 (which has fixed 8-profile OTP firmware), this variant requires customer-specific firmware loading via SWD or UART for multi-port arbitration logic and thermal policy definition.
Does AP43771VDKZ-13 support USB PD 3.1 Extended Power Range (EPR)?
No. AP43771VDKZ-13 complies with USB PD Rev3.1 V1.2 but does not support EPR (up to 48V/5A). Its PPS range is limited to 3.3V–21V at 20mV/step, and maximum VBUS output is capped at 21V per USB PD specification conformance testing and internal OVP thresholds.
Can AP43771VDKZ-13 operate without an external nMOS switch?
No. The device requires an external high-side nMOS switch driven by PWR_EN. It lacks internal power switches. The PWR_EN pin delivers a charge-pump boosted gate drive signal (≥10V above VBUS) and must be connected through a 10Ω resistor to the MOSFET gate to ensure safe turn-on/turn-off timing and prevent shoot-through.
How is e-Marker cable detection implemented on AP43771VDKZ-13?
e-Marker detection uses SOP' (Structured VDM) command transmission over the CC channel. The AP43771VDKZ-13 initiates SOP' packets after initial connection, reads VDM responses containing cable capabilities (e.g., 5A rating, USB3.1 Gen2 support), and applies cable-loss compensation coefficients derived from returned data - all handled autonomously by the embedded MCU without host intervention.
AP43771VDKZ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 24-WFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- I2C
- Function:
- Controller
- Interface:
- I2C, USB
- Standards:
- USB 3.0
- Voltage - Supply:
- 3.3V ~ 24V
- Current - Supply:
- 6mA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- W-QFN4040-24 (Type A1)
- Grade:
- -
- Qualification:
- -
AP43771VDKZ-13 FAQ
1.How can I place an order for AP43771VDKZ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP43771VDKZ-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 AP43771VDKZ-13 reliable?
The price and inventory of AP43771VDKZ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP43771VDKZ-13 is usually 5 days.
3.What payment methods are accepted for AP43771VDKZ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP43771VDKZ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP43771VDKZ-13?
AP43771VDKZ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP43771VDKZ-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 AP43771VDKZ-13?
For technical support, including AP43771VDKZ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP43771VDKZ-13 requirements.
6.How does Aetrix verify that AP43771VDKZ-13 is sourced from the original manufacturer or authorized distributors?
All AP43771VDKZ-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 AP43771VDKZ-13 meets industry standards.
7.What is the process for return or replacement of AP43771VDKZ-13?
All AP43771VDKZ-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP43771VDKZ-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 AP43771VDKZ-13 part is unused and in its original packaging.
Return procedure for AP43771VDKZ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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