Click here to ask about the production status of specific part numbers. Evaluates: MAX16984A MAX16984A Evaluation Kit General Description Features The MAX16984A evaluation kit (EV kit) demonstrates Configurable Charge Detection Modes the MAX16984A automotive high-current, high-efficiency, USB-IF BC1.2 CDP, DCP step-down DC-DC converter with integrated USB Type-A Apple 2.4A Samsung 2.0A controller. In addition, the device also includes 1GHz bandwidth USB 2.0 D+/D- protection switches which pro- China YD/T 1591-2009 Charging Specification vide ESD and short-to-battery protection for low-voltage Automatic USB Voltage Adjustment by Integrated transceivers. DC-DC Converter (310kHz - 2.2MHz) The MAX16984A features integrated host-charger port- Proven PCB Layout detection circuitry adhering to the USB 2.0 specification, Fully Assembled and Tested the USB-IF BC1.2 battery charging specification, Apple iPod/iPhone/iPad and Samsung charge-detection termination resistors, and Chinese Telecommunication Quick Start Industry Standard YD/T 1591-2009. The following procedure demonstrates the MAX16984A The MAX16984A integrates high-side current sensing and EV kits high-speed data switches and voltage adjustment voltage adjustment circuitry to provide automatic USB capability. voltage adjustment to compensate for voltage drops in Required Equipment captive cables associated with automotive applications. MAX16984A EV kit The MAX16984A step-down, synchronous, DC-DC con- 2m USB-A extension cable (included in EV kit) verter operates from a voltage of up to 28V continuous and protects against load dump transients up to 40V. The 1.6 20W resistor (included in EV kit) or converter is programmable for frequencies from 310kHz electronic load to 2.2MHz and can deliver 3A continuously. USB Type-A plug (included in EV kit) The EV kit is populated with a MAX16984AATJB/V+ con- 14V/2A DC power supply or car battery (VBAT) figured for 2.2MHz operation. The data switches of the Digital voltmeter (DVM) MAX16984A generally do not require far-eye tuning the EV kit is populated with shorts. USB Type-A flash drive Ordering Information appears at end of data sheet. Apple, iPod, iPhone, and iPad are registered trademarks of Apple Inc. Samsung is a registered trademark of Samsung Electronics Co., Ltd. 319-100522 Rev 1 12/20Evaluates: MAX16984A MAX16984A Evaluation Kit Initial Setup High-Speed Data Switches The MAX16984A EV kit is fully assembled and tested. To 5) Connect the EV kit upstream port (J2) to the computer USB port using the supplied USB-A extension cable. setup the MAX16984A board for evaluation, follow these steps: 6) Check that the USB flash drive is recognized on your 1) Verify SW1 switch is set to HVEN=1, ENBUCK=1, computer and that you can open it. This verifies that the high-speed data switches are operating properly. SYNC=0, DATA MODE=0. Unplug the flash drive and 2m USB-A extension cable 2) Set the VBAT power supply to 14V output, 2A current limit. Turn the output off. Connect negative lead to from the EV kit. the GND test loop on EV kit. Connect positive lead to VBAT FLT test loop on EV kit. 3) Turn the VBAT power supply output on. 4) Plug a USB flash drive into the EV kit USB connector (J3). Figure 1: Initial EV Kit Setup Figure 2: USB Flash Drive Recognized Maxim Integrated 2 www.maximintegrated.com