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Diodes Incorporated AP43771FBZ-13
- Part No.:
- AP43771FBZ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Controllers
- Package:
- 14-WFDFN Exposed Pad
- Datasheet:
-
AP43771FBZ-13.pdf
- Description:
- HIGH PERFORM USB PD CONTROLLER
- Quantity:
- Payment:
- Shipping:
Inventory:2,752
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Product details
Overview
AP43771FBZ-13 from Diodes Incorporated is a USB Type-C Power Delivery 3.0/PPS controller with integrated QC4/QC4+ protocol support, 20 mV/step PPS voltage resolution, 50 mA/step current resolution, and embedded cable-loss compensation. It controls external N-MOSFETs for VBUS power delivery in USB-C adapters and chargers, featuring OTP firmware storage, MTP configuration memory, and built-in OVP/OCP/SCP/OTP protection.
For engineers reviewing the AP43771FBZ-13 datasheet, AP43771FBZ-13 pinout, AP43771FBZ-13 application, or AP43771FBZ-13 equivalent, key selection criteria include USB PD Rev3.0 V1.2 + PPS compliance (TID 1090028), CC/CV control via OCDRV/VFB/IFB pins, e-Marker SOP' detection capability, and W-DFN3030-14 (Type A1) package compatibility with high-density USB-C charger layouts.
Technical Context
The AP43771FBZ-13 implements a digital control loop with hardware-accelerated USB PD 3.0 state machine and Qualcomm QC4/4+ handshake logic. Its analog front-end includes dual op-amps for CV (VFB) and CC (IFB) regulation, programmable OTP-based thermal sensing (OTP pin), and dedicated CC1/CC2/DP/DN transceivers with ±4.8 V line OVP.
It integrates a 5 V LDO (V5V), internal shunt regulator, and open-drain OCDRV output for opto-coupler feedback. Protection functions are fully autonomous-OVP triggers NMOS gate turn-off within 50 µs, UVP recovery occurs after 30 ms delay, and SCP initiates 0.8 s restart intervals-all configurable per PDO profile without host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB PD Compliance | USB PD Rev3.0 V1.2 + PPS certified (TID 1090028); supports APDO with 20 mV/step resolution for precise voltage tuning. |
| QC Protocol Support | Qualcomm QC4 and QC4+ certified; enables fast charging negotiation with compatible mobile devices without additional protocol ICs. |
| Operating Voltage Range | 3.3 V to 16 V on VCC pin; supports wide-input AC-DC flyback or buck-boost converters without external LDO pre-regulation. |
| Protection Response Time | OVP shutdown delay ≤50 µs; UVP response delay ≤30 ms; ensures rapid fault isolation during transient overvoltage events. |
| Thermal Sensing | Programmable OTP current source (≤100 µA) drives external NTC; enables accurate junction temperature monitoring with user-defined trip points. |
| Cable Compensation | Adjustable 24–36 mV/A compensation (0–7× step); corrects VBUS drop across long or high-resistance USB-C cables during PPS operation. |
| Current Sense Interface | ISENP pin accepts high-side current sense signal; enables direct integration with primary-side current-sense resistors in isolated topologies. |
Pinout & Package
AP43771FBZ-13 is housed in a thermally enhanced W-DFN3030-14 (Type A1) package - 3.0 mm × 3.0 mm, 0.75 mm height, exposed thermal pad - optimized for compact USB-C adapter PCBs with high power density and thermal dissipation requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBUS | Discharge path output terminal | Provides controlled discharge path during fault conditions; sinks current to reduce VBUS overshoot duration post-OVP. |
| PWR_EN | External NMOS gate driver | Open-drain output enabling/disabling VBUS power switch; logic-high enables MOSFET conduction, logic-low disconnects VBUS. |
| VCC | Main supply input | Accepts 3.3–16 V input; powers internal LDOs, digital core, and analog blocks; requires local ceramic decoupling. |
| ISENP | Current sense positive node | High-side current sense input for OCP; interfaces directly with sense resistor in primary-side switching path. |
| OCDRV | CC/CV opto-coupler driver | Open-drain output driving opto-LED anode; regulates VBUS via secondary-side feedback loop in isolated converters. |
| GND | Ground reference | Analog/digital ground common point; must be connected to low-impedance PCB plane adjacent to thermal pad. |
| OTP | NTC bias current source | Programmable current source (≤100 µA) for external NTC; sets thermal trip threshold based on resistance vs. temperature curve. |
| VFB | CV regulation feedback | Negative input of CV op-amp; sets target output voltage (5/9/12 V) via resistor divider from opto-coupler output. |
| IFB | CC regulation feedback | Negative input of CC op-amp; regulates output current by adjusting VBUS until sensed current matches programmed limit. |
| CC2 / CC1 | USB-C configuration channel | Dual bidirectional CC interface pins; detect plug orientation, Rp/Rd values, and initiate PD negotiation with UFP/DFP devices. |
| DP / DN | USB 2.0 data lines | Pass-through D+ and D− signals; include ±4.8 V overvoltage protection to prevent damage from ESD or miswired cables. |
| V5V | Internal 5 V LDO output | Stable 5 V supply for external circuitry (e.g., MCU, level shifters); capable of sourcing up to 100 mA. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PPS control logic | Hardware-based APDO handling with 20 mV/step resolution eliminates need for external microcontroller firmware updates during PPS negotiation. |
| e-Marker cable detection | SOP' command support enables automatic identification of electronically marked cables, ensuring safe current delivery up to 5 A without manual configuration. |
| Zero-mismatch voltage methodology | Eliminates voltage offset between requested and delivered VBUS during PDO transitions, meeting USB PD electrical specification monotonicity requirements. |
| Built-in shunt regulator | Reduces external component count by replacing discrete shunt references; improves system cost and layout simplicity in low-power standby modes. |
| Deep sleep mode | Consumes only 550–700 µA when CC1/CC2 detached for >3 s; extends no-load efficiency in USB-C wall adapters meeting Level VI energy standards. |
Applications
| USB-C Wall Adapter | Multi-Port Laptop Charger |
|---|---|
Use Scenario: Compact 65 W USB-C wall adapter delivering 5 V/3 A, 9 V/3 A, and 15 V/3 A profiles with PPS support for smartphone fast charging. IC Role / Device Role / Timing Role: Primary USB PD controller managing PDO negotiation, CC communication, VBUS switching, and real-time CV/CC regulation via OCDRV/VFB/IFB. Use Value: Enables single-chip PD 3.0 + PPS + QC4+ implementation with <10 external passive components, reducing BOM cost and PCB area by 35% versus discrete controller solutions. | Use Scenario: 100 W dual-port GaN charger supporting simultaneous 65 W + 35 W delivery with independent voltage/current control per port. IC Role / Device Role / Timing Role: Dedicated PD controller per port handling independent CC1/CC2 handshaking, cable detection, and dynamic load balancing under shared power budget constraints. Use Value: Supports concurrent negotiation with two UFP devices using separate DP/DN and CC lanes; maintains <50 µs OVP response even during multi-port voltage transitions. |
| USB-C Automotive Charger | Universal Travel Adapter |
Use Scenario: In-vehicle USB-C charger operating from 9–16 V battery input, delivering 15 V/3 A to laptops while maintaining stable output under cold-crank (6.5 V) conditions. IC Role / Device Role / Timing Role: Robust PD controller with extended VCC range (3.3–16 V), UVP lockout at 3.4 V, and thermal foldback via OTP-driven NTC monitoring. Use Value: Sustains regulated output down to 6.5 V battery input without brownout; OTP hysteresis (+25 °C) prevents thermal cycling during sustained high-load operation. | Use Scenario: Foldable travel adapter accepting 100–240 V AC input and delivering globally compatible 5/9/12/15/20 V PD profiles with PPS fine-tuning for regional device compatibility. IC Role / Device Role / Timing Role: Central PD intelligence coordinating AC-DC conversion, multiple PDO selection, and adaptive cable compensation across varying line voltages and ambient temperatures. Use Value: Cable-loss compensation (24–36 mV/A) dynamically adjusts VBUS to maintain ±50 mV accuracy at connector end-even with 1 m, 28 AWG cables-ensuring reliable PPS charging worldwide. |
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 | Single-chip USB PD 3.0 controller with integrated DC-DC drivers; lacks QC4+ certification and PPS APDO resolution finer than 100 mV. | Targeted for cost-sensitive single-port adapters without Qualcomm ecosystem requirements; no native e-Marker SOP' support. | Select when QC4+ compatibility is unnecessary and system-level integration (e.g., integrated gate drivers) reduces external MOSFET count. |
| IP2721 | PD 3.0 + PPS controller with 10 mV/step resolution; includes integrated 5 V/1 A LDO but no dedicated DP/DN OVP protection. | Optimized for ultra-compact designs where board space is constrained; requires external TVS on DP/DN for full IEC 61000-4-2 compliance. | Select when maximum PPS precision (10 mV) is prioritized over integrated line protection, and external TVS diodes are acceptable in layout. |
Compared with STUSB4500QTR and IP2721, the AP43771FBZ-13 uniquely combines USB IF-certified PPS (TID 1090028), QC4+ protocol stack, and ±4.8 V DP/DN OVP in a 3×3 mm DFN-making it optimal for safety-critical, multi-protocol USB-C chargers requiring minimal external protection and guaranteed interoperability.
Availability
AP43771FBZ-13 is available at Aetrix Electronics and suitable for USB-C wall adapters, multi-port laptop chargers, and automotive USB-C power supplies requiring stable component supply, full USB PD 3.0 + PPS compliance, and Qualcomm QC4+ interoperability.
Supply support for AP43771FBZ-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 integrated circuits, specializing in power management, signal integrity, and connectivity solutions for consumer, industrial, and automotive markets.
The AP43771 belongs to Diodes' USB Power Delivery Controller product line, engineered specifically for high-efficiency, small-form-factor USB-C chargers and adapters requiring full PD 3.0/PPS compliance, multi-protocol support, and robust fault protection.
FAQ
What USB PD specifications and protocols does the AP43771FBZ-13 support?
The AP43771FBZ-13 supports USB PD Rev3.0 V1.2 including optional Programmable Power Supply (PPS) with Augmented Power Data Objects (APDO), certified under USB-IF TID 1090028. It also implements Qualcomm QC4 and QC4+ protocols, enabling interoperability with Snapdragon-powered smartphones and tablets without requiring additional protocol translation ICs.
How does the AP43771FBZ-13 handle cable-loss compensation and e-Marker detection?
The AP43771FBZ-13 provides programmable cable-loss compensation (24–36 mV/A, adjustable in 0–7 steps) to maintain precise VBUS voltage at the load end. It supports SOP' command transmission for e-Marker cable detection, identifying electronically marked cables and enabling safe current delivery up to 5 A based on cable rating information retrieved from the e-Marker chip.
What protection features are integrated into the AP43771FBZ-13 and how do they respond to faults?
The AP43771FBZ-13 integrates OVP, UVP, OCP, SCP, and OTP with autonomous response. OVP disables PWR_EN within 50 µs and activates internal VBUS discharge; UVP triggers shutdown after 30 ms delay; OCP initiates hard reset to upstream devices; SCP enforces 0.8 s restart intervals; OTP uses programmable current to external NTC for thermal foldback with +25 °C hysteresis.
Can the AP43771FBZ-13 operate without external microcontroller firmware updates?
Yes-the AP43771FBZ-13 contains one-time-programmable (OTP) ROM for main firmware and multi-time-programmable (MTP) ROM for user configuration. All USB PD state machine logic, QC4+ handshake, PPS control, and protection algorithms execute autonomously in hardware, eliminating dependency on external MCU firmware updates for protocol compliance or feature enablement.
AP43771FBZ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 14-WFDFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Controller
- Interface:
- USB
- Standards:
- USB 3.0
- Voltage - Supply:
- 3.3V ~ 16V
- Current - Supply:
- 6mA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- W-DFN3030-14 (Type A1)
- Grade:
- -
- Qualification:
- -
AP43771FBZ-13 FAQ
1.How can I place an order for AP43771FBZ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP43771FBZ-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 AP43771FBZ-13 reliable?
The price and inventory of AP43771FBZ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP43771FBZ-13 is usually 5 days.
3.What payment methods are accepted for AP43771FBZ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP43771FBZ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP43771FBZ-13?
AP43771FBZ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP43771FBZ-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 AP43771FBZ-13?
For technical support, including AP43771FBZ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP43771FBZ-13 requirements.
6.How does Aetrix verify that AP43771FBZ-13 is sourced from the original manufacturer or authorized distributors?
All AP43771FBZ-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 AP43771FBZ-13 meets industry standards.
7.What is the process for return or replacement of AP43771FBZ-13?
All AP43771FBZ-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP43771FBZ-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 AP43771FBZ-13 part is unused and in its original packaging.
Return procedure for AP43771FBZ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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