

Overview: The AP43771H is an advanced USB PD 3.1 protocol controller designed for high-end USB Type-C adapters and chargers. It is an upgrade from the AP43771V, offering better efficiency, increased SRAM size, and enhanced protection features.
Specifications: This controller supports USB PD specification Rev 3.1 V1.6 with an extended power range up to 28V. It includes a built-in regulator for constant voltage (CV) and constant current (CC) control, supports short circuit protection (SCP), over-temperature protection (OTP), over-voltage protection (OVP), and under-voltage protection (UVP) with auto-restart. It also features CC1/CC2 short protection to VBUS up to 34V.
Features: The AP43771H includes a 16KB one-time programmable (OTP) memory and 1.5KB SRAM for software encryption. It offers two options for current sensing resistors (5mΩ or 10mΩ), supports power-saving mode, and e-Marker cable detection. The device is lead-free, RoHS compliant, and suitable for automotive applications.
Applications: It is ideal for Type-C USB PD3.1 (EPR) 28V chargers.
Functional Description: The device enhances efficiency, protection, and manufacturing ease. It supports strong overvoltage protection and is compatible with existing designs with minimal adjustments. It manages power-on sequences, voltage transitions, and provides robust protection mechanisms including OVP, UVP, over-current protection (OCP), SCP, and OTP.
Electrical Characteristics: The document details various electrical parameters such as startup voltage, operating supply current, reference voltages for CV control, and protection function thresholds.
Ordering Information: The AP43771H is available in W-DFN3030-14 packaging, with options for firmware loading, and is supplied in tape and reel format.
Mechanical Data: Information on package dimensions, suggested pad layout, moisture sensitivity, and terminal finish is provided.
Disclaimer and Liability: The document is for illustrative purposes and does not assume liability for its application. It is intended for skilled engineering customers who must ensure compliance with legal and safety standards.
Intellectual Property: Products may be covered by patents and trademarks. No license is granted under Diodes' or third-party intellectual property rights.
Terms of Sale: Products are subject to Diodes' Standard Terms and Conditions of Sale. Unauthorized sales channels are not warranted.
Legal Compliance: Diodes' products must not be used in prohibited applications. Users are responsible for compliance with laws and indemnifying Diodes against claims from noncompliance.
Accuracy of Information: While efforts are made to ensure accuracy, the document may contain errors. Diodes reserves the right to make changes without notice.
Unauthorized Use: Unauthorized use of the document is prohibited, and Diodes is not responsible for losses from such use.
Updates: The notice may be updated periodically, with the latest version available on Diodes' website.
AP43771H ENHANCED USB PD 3.1 PROTOCOL CONTROLLER Pin Assignments The AP43771H, pin-to-pin upgrade part from AP43771V (W-DFN3030-14 (Type A1)), is a highly integrated USB Type-C® power delivery (PD) controller and targeted for premium USB Type-C adapter and charger applications. It supports USB power delivery specification Rev 3.1 V1.6 Extended Power Range (EPR) 28V (including AVS capability of 100mV/Step support). The enhancements of AP43771H over existing AP43771V include efficiency improvement with Rsense 5mD option and enlarged SRAM size (1.5KB). Furthermore, the AP43771H implements a new CC1/CC2-short-to-VBUS protection up to 34V. To address higher output voltage and power requirements, AP43771H supports up PD3.1 to 28V VBUS output with AVS capability (100mV/Step). Features Applications • Pin-to-Pin Upgrade to AP43771V • Type-C USB PD3.1 (EPR) 28V chargers • Compatible with USB PD Rev 3.1 V1.6 (TID = 9275) • 16KB OTP and 1.5KB SRAM to Support Software Encryption • OTP for Main Firmware and MTP for System Configuration • Built-in Regulator for CV and CC Control • Two Options of Current Sensing Resistor (5m0 or 10m0) • Support SCP/OTP/OVP/UVP with Auto Restart • CC1/CC2 Pins Short Protection to VBUS (Up to 34V) • Support Power-Saving Mode • Support e-Marker Cable Detection • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) • Halogen and Antimony Free. “Green” Device (Note 3) • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/ Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated's definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. Document number: DS44561 Rev. 2 - 2 www.diodes.com © 2023 Copyright Diodes Incorporated. All Rights
Open the catalog to page 1Typical Applications Circuit Pin Descriptions Pin Number June 2023 2023 Copyright Diodes Incorporated. All Rights Reserved.
Open the catalog to page 2AP43771H Functional Block Diagram ISENP 4 Digital Control Logic June 2023 © 2023 Copyright Diodes Incorporated. All Rights Reserved.
Open the catalog to page 3Absolute Maximum Ratings (Note 4) Symbol Notes: 4. Stresses greater than those listed under Absolute Maximum Ratings can cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to Absolute Maximum Ratings for extended periods can affect device reliability. 5. Test condition: device mounted on FR-4 substrate PC board, 2oz copper, with the minimum footprint. Recommended Operating Conditions Symbol June 2023 2023 Copyright Diodes...
Open the catalog to page 4Electrical Characteristics (@ Ta = +25°C, unless otherwise specified.) Notes: 6. Cable compensation voltage can be adjusted by setting from 0 to Vcable * n (N: 0 to 7). 7. Guaranteed by design. 8. 120% OVP setting & 76% UVP setting. 9. OVP blanking time during Vo transition from high output voltage to low output voltage, such as 9V to 5V, or 12V to 5V.
Open the catalog to page 5Functional Description AP43771H Improvement Overview The enhanced Power Delivery (PD) controller AP43771H is a new generation PD controller enhanced with key features suitable for various applications over previous versions (AP43771V). Most noticeable desired improvements are efficiency, protection, ease of manufacturing and inventory management, system BOM optimization for multiple-port charging applications. AP43771H’s CC1/CC2 pins support strong overvoltage protection to VBUS (up to 34V). Due to the pin-to-pin compatible design, the AP43771H (W-DFN3030-14 (Type A1)) could be conveniently used...
Open the catalog to page 6Ordering Information Part Number Marking Information W-DFN3030-14 (Type A1) ( Top View ) XX : Identification Code Y : Year : 0 to 9 (ex: 3 = 2023) W : Week : A to Z : week 1 to 26; a to z : week 27 to 52; z represents week 52 and 53 X : Internal Code June 2023 2023 Copyright Diodes Incorporated. All Rights Reserved.
Open the catalog to page 7Package Outline Dimensions_ Please see http://www.diodes.com/package-outlines.html for the latest version. W-DFN3030-14 (Type A1) SEATING PLANE Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. Mechanical Data • Moisture Sensitivity: Level 1 per J-STD-020 • Terminals: Finish - Matte Tin Plated Leads, Solderable per J-STD-202 (f|) • Weight: 0.017 grams (Approximate) 8 of 9 www.diodes.com June 2023 2023 Copyright Diodes Incorporated. All Rights Reserved.
Open the catalog to page 8IMPORTANT NOTICE 1. DIODES INCORPORATED (Diodes) AND ITS SUBSIDIARIES MAKE NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO ANY INFORMATION CONTAINED IN THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 2. The Information contained herein is for informational purpose only and is provided only to illustrate the operation of Diodes’ products described herein and application examples. Diodes...
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