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Diodes Incorporated AP43776QZDZW20-13
- Part No.:
- AP43776QZDZW20-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Power Management - Specialized
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
AP43776QZDZW20-13.pdf
- Description:
- ACDC DECODER W-QFN4040-20 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
AP43776QZDZW20-13 from Diodes Incorporated is an AEC-Q100 Grade 1 automotive-qualified dual-channel USB Type-C® PD3.1/PPS and QC5 protocol decoder with integrated MCU, 10-bit ADC, and 20-pin W-QFN4040-20 (4×4 mm, 0.5 mm pitch) package. It supports full-range PPS (3.3–21 V @ 20 mV/step, up to 6 A @ 50 mA/step), e-Marker cable detection with 30 mA VCONN drive, and DisplayPort Alternate Mode routing via I2C. It enables 120W dual-port car chargers without external VBUS MOSFETs.
For engineers reviewing the AP43776QZDZW20-13 datasheet, AP43776QZDZW20-13 pinout, AP43776QZDZW20-13 application, or AP43776QZDZW20-13 equivalent, key selection criteria include dual independent PD3.1 PPS decoding capability, AEC-Q100 qualification for under-hood environments, I2C master control of two Buck-Boost converters, integrated thermal and cable-loss compensation, and UART-enabled four-port power sharing across two ICs.
Technical Context
The AP43776QZDZW20-13 implements two hardware-accelerated USB PD physical layers with BMC encoding/decoding, 4b/5b conversion, and collision-avoidance logic - enabling sub-100 ms handshake response per channel. Its embedded 8051 MCU executes certified PD3.1/PPS (TID: 9440) and QC5 (QC20211008263) firmware from 12 KB OTP ROM and supports runtime customization via MTP ROM blocks.
It decodes CC1/CC2 signaling to determine plug orientation, DFP/Sink role, e-Marker presence, and DP Alt Mode entry/exit commands - then routes DP/DN path control signals to external high-speed muxes via I2C. Simultaneously, it monitors VBUS, temperature (via GPIO3/GPIO4 NTC bias), and cable loss to dynamically de-rate output power using firmware-defined thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protocol Support | USB PD3.1 (TID 9440), QC5 (QC20211008263), BC1.2 CDP/DCP, FCP, Apple, YD/T 1591 - enables universal fast-charging negotiation across smartphones, notebooks, and accessories. |
| PPS Range | 3.3–21 V @ 20 mV/step, 0–6 A @ 50 mA/step - delivers precise voltage/current tuning for battery health optimization in automotive charging systems. |
| ADC Resolution | 10-bit SAR ADC with 2 V reference and 100 kHz sampling - digitizes GPIO analog inputs (e.g., NTC thermistors) for thermal management and input voltage monitoring. |
| VCONN Drive | 30 mA max on CC pins with OCP - powers e-Marker ICs in active cables without external regulators or current-limiting resistors. |
| Operating Temp | −40°C to +125°C ambient (AEC-Q100 Grade 1) - validated for direct mounting near vehicle power electronics with no derating. |
| Package | W-QFN4040-20 (4 mm × 4 mm, 0.5 mm pitch, exposed thermal pad) - supports high-density PCB layouts and efficient heat dissipation in compact car charger modules. |
| I2C Role | I2C master (SCL/SDA) controlling two independent Buck-Boost converters - eliminates need for discrete enable MOSFETs per port and simplifies power stage sequencing. |
Pinout & Package
AP43776QZDZW20-13 uses a W-QFN4040-20 (4×4 mm, 0.5 mm pitch) package with exposed thermal pad connected to PCB ground. Pin functions are validated per Diodes DS43207 Rev. 4–2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1_A / CC2_A / CC1_B / CC2_B | USB Type-C CC channel transceivers | Hardware BMC PHY for dual-channel PD3.1 negotiation; supports RP/Rd detection, plug orientation, and VCONN switching on unconnected CC line. |
| DP_A / DN_A / DP_B / DN_B | DisplayPort differential pair interfaces | Direct connection to Type-C connector DP/DN lines; enables Alt Mode discovery and routing control signal generation via I2C to external mux. |
| SCL / SDA | I2C master interface | Drives two Buck-Boost controllers; conveys negotiated V/I targets, fault status, and telemetry (e.g., VBUS, temperature) without analog feedback loops. |
| GPIO1–GPIO8 | Configurable multi-function I/O | Support UART inter-IC communication (GPIO1/GPIO2), NTC bias (GPIO3/GPIO4), LED indication (GPIO5/GPIO6), and V/I reporting (GPIO7/GPIO8). |
| VCC / GND / Exposed Pad | Power and grounding | VCC powers internal analog/digital circuitry; exposed pad provides low-thermal-resistance path to PCB ground for sustained 120W operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent PD3.1 PPS decoders | Enables two fully compliant, isolated USB-C ports from single IC - eliminating duplicate controller ICs and reducing BOM count in multi-port automotive chargers. |
| Integrated 8051 MCU + 12 KB OTP + MTP ROM | Allows field-upgradable firmware for new protocol versions (e.g., future PD revisions) and customer-specific power-sharing algorithms without hardware change. |
| e-Marker detection + 30 mA VCONN | Automatically identifies active cables and powers embedded markers - ensures safe high-power delivery up to 120W while preventing overcurrent on CC lines. |
| Cable-loss compensation | Adjusts output voltage in real time based on measured VBUS drop - maintains target voltage at device connector despite IR losses in long or high-resistance cables. |
| Thermal & low-battery de-rating | Firmware-triggered power reduction using ADC-measured NTC voltage - prevents thermal runaway in enclosed vehicle environments and extends battery life during cold cranking. |
Applications
| Automotive Dual-Port PD3.1 Charger | In-Vehicle DisplayPort Alt Mode Hub |
|---|---|
|
Use Scenario: Integrated 120W dual-USB-C charging module in center console or dashboard, powered from 12V/24V vehicle battery. IC Role / Device Role / Timing Role: Dual-channel PD3.1 protocol decoder and I2C master coordinating two Buck-Boost converters; handles CC negotiation, VCONN, and power sharing. Use Value: Eliminates discrete VBUS MOSFETs and reduces component count by >30% versus discrete controller + MCU solutions while maintaining full PD3.1 compliance. |
Use Scenario: In-car infotainment system supporting simultaneous charging and video output to rear-seat displays or head-up units. IC Role / Device Role / Timing Role: USB-C CC decoder that detects DP Alt Mode requests and sends routing commands to high-speed mux via I2C; manages concurrent power delivery. Use Value: Enables single-cable connectivity for notebook docking - delivering up to 21V/6A power and DisplayPort video without separate power adapters or HDMI cables. |
| Four-Port Smart Power-Sharing System | BC1.2 CDP Charging with Data Link |
|
Use Scenario: Premium vehicle with four USB-C ports (front/rear), sharing fixed 180W source budget across all attached devices. IC Role / Device Role / Timing Role: Two AP43776QZDZW20-13 ICs interconnected via GPIO1/GPIO2 UART; negotiate real-time power allocation based on device requests and thermal limits. Use Value: Dynamically balances load between ports - e.g., prioritizing fast charge for driver's phone while limiting rear ports to 15W during high ambient temperature. |
Use Scenario: Vehicle-mounted USB-A/USB-C combo port providing both charging and data sync to passenger devices (e.g., tablets, phones). IC Role / Device Role / Timing Role: Configures BC1.2 CDP mode via I2C to enable D+ and D− data communication while sourcing up to 1.5A; disables legacy QC/DCP on DP/DN lines. Use Value: Supports simultaneous file transfer and rapid charging - critical for fleet telematics updates or media syncing without requiring separate data-only cables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel USB-C PD protocol decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STUSB4500QTR | Single-channel PD3.0 controller with no integrated MCU or ADC; requires external microcontroller for power sharing and thermal management. | Lacks dual-channel independence, PPS resolution (50 mV/step), and automotive qualification - limited to consumer-grade dual-port designs. | Select when cost sensitivity outweighs AEC-Q100 compliance and advanced firmware features. |
| TI TUSB8041A | USB 3.0 hub controller with basic PD support only; no PPS, no QC5, no e-Marker handling, and no VCONN switch. | Designed for data-centric applications (e.g., USB peripherals); cannot implement standalone PD3.1 charging or DP Alt Mode routing. | Select only for non-automotive USB expansion hubs where power negotiation is handled externally. |
Compared with STUSB4500QTR and TUSB8041A, the AP43776QZDZW20-13 uniquely integrates dual PD3.1 PPS decoding, AEC-Q100 qualification, firmware-based smart power sharing, and hardware-assisted DP Alt Mode control - making it the only single-chip solution for certified 120W+ automotive USB-C charging systems.
Availability
AP43776QZDZW20-13 is available at Aetrix Electronics and suitable for automotive infotainment systems, in-vehicle USB-C charging stations, and ADAS power management modules requiring stable component supply, long lifecycle support, and AEC-Q100 traceability.
Supply support for AP43776QZDZW20-13 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 protection solutions for automotive, industrial, and consumer markets.
The AP43776Q belongs to Diodes' automotive-qualified USB-C protocol decoder product line, designed specifically for robust, high-efficiency multi-port charging in vehicles - integrating certification-ready firmware, thermal resilience, and system-level intelligence into a single W-QFN package.
FAQ
Is AP43776QZDZW20-13 qualified for automotive under-hood applications?
Yes. The AP43776QZDZW20-13 is AEC-Q100 Grade 1 qualified (−40°C to +125°C TA), manufactured in IATF 16949-certified facilities, and PPAP-capable. It includes built-in OCP, OTP, CC-to-VBUS short protection up to 24 V, and moisture detection between DP/DN - meeting stringent automotive reliability requirements.
Does AP43776QZDZW20-13 require external MOSFETs for VBUS switching?
No. The AP43776QZDZW20-13 eliminates the need for external VBUS MOSFETs by acting as I2C master to control two Buck-Boost converters directly. Its firmware handles power state transitions, fault responses, and dynamic de-rating - enabling fully integrated 120W dual-port designs with minimal external components.
How does AP43776QZDZW20-13 support DisplayPort Alternate Mode?
The AP43776QZDZW20-13 decodes DP Alt Mode Discovery, Enter, and Exit commands from CC handshaking, then sends corresponding routing control signals to external high-speed muxes via its I2C interface. It also monitors DP/DN line integrity and supports simultaneous power delivery and video transport on a single USB-C cable.
Can AP43776QZDZW20-13 implement power sharing across four USB-C ports?
Yes. Two AP43776QZDZW20-13 ICs can be interconnected via GPIO1/GPIO2 configured as UART to coordinate power allocation across four ports. Firmware implements real-time load balancing, thermal de-rating, and priority-based distribution - all without external microcontrollers or additional communication ICs.
AP43776QZDZW20-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Quick Charge Decoder
- Current - Supply:
- 3mA (Max)
- Voltage - Supply:
- 3V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- W-QFN4040-20 (SWP) (Type A1)
AP43776QZDZW20-13 FAQ
1.How can I place an order for AP43776QZDZW20-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP43776QZDZW20-13 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 AP43776QZDZW20-13 reliable?
The price and inventory of AP43776QZDZW20-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP43776QZDZW20-13 is usually 5 days.
3.What payment methods are accepted for AP43776QZDZW20-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP43776QZDZW20-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP43776QZDZW20-13?
AP43776QZDZW20-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP43776QZDZW20-13 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 AP43776QZDZW20-13?
For technical support, including AP43776QZDZW20-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP43776QZDZW20-13 requirements.
6.How does Aetrix verify that AP43776QZDZW20-13 is sourced from the original manufacturer or authorized distributors?
All AP43776QZDZW20-13 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 AP43776QZDZW20-13 meets industry standards.
7.What is the process for return or replacement of AP43776QZDZW20-13?
All AP43776QZDZW20-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP43776QZDZW20-13, 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 AP43776QZDZW20-13 part is unused and in its original packaging.
Return procedure for AP43776QZDZW20-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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