EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX16972/MAX16972A 3A Automotive Hi-Speed USB Protectors with Apple iPhone/iPad and USB 2.0 Charge Detection General Description Benefits and Features The MAX16972/MAX16972A provide high-ESD and 900MHz Bandwidth USB 2.0 Data Switches short-circuit protection for the low-voltage internal USB Industry-Leading R Minimizes Voltage Drop DS(ON) data and USB power line in automotive radio, naviga- on Bus Line to Help Meet USB Voltage Specifications tion, connectivity, and USB hub applications. The devices at Device Connector support both Hi-Speed USB (480Mbps) and full-speed Current-Limited 31m (typ) BUS Switch with High- USB (12Mbps) operation. In addition, the devices include Capacitive Load Capability integrated circuitry to enable fast charging for consumer Robust Overvoltage and ESD Protection for devices that adhere to either the Apple method or the Automotive Environment Saves on External Hi-Speed USB host-charger port-detection protocol and Protection Components support USB on-the-go (OTG). Short-to-Battery and Short-to-GND Protection on Protected HVBUS Output The short-circuit protection features include short-to-battery on the protected HVBUS, HVD+, and HVD- outputs, as Short-to-Battery and Short-to-HVBUS Protection on Protected HVD+ and HVD- Outputs well as short-to-HVBUS on the protected HVD+ and HVD- outputs. The devices are capable of a short-to-battery Two 4.0 (typ) R USB 2.0 Data Switches ON Integrated Overcurrent and Short-Circuit Autoretry condition of up to +18V. Short-to-GND and overcurrent High ESD Protection (HVD+, HVD-, HVBUS) protection are also provided on the HVBUS output to 15kV Human Body Model protect the internal BUS power rail from overcurrent faults. 15kV IEC 61000-4-2 Air Gap Each device features high-ESD protection to 15kV Air- 8kV IEC 61000-4-2 Contact Gap method and 8kV Contact method on all protected 20ms Fault-Blanking Timeout Period HVBUS, HVD+, and HVD- outputs. Automatic Transitioning of Charge Modes through Each device features two low 4.0 on-resistance Hi-Speed Intelligent State Machine for Seamless Device USB switches, a current-limited low-voltage 31m BUS Integration switch, and provides an integrated high-voltage external Integrated Apple iPhone 1.0A Dedicated Charging power-switch controller. The BUS switch can start up into Mode high-capacitance noncompliant USB loads. The devices Integrated Apple iPad 2.1A Dedicated Charging also feature an enable input, a fault output, integrated Mode Apple iPhone /iPad fast-charging termination resistors, USB-IF BC1.2 Charging Downstream Port (CDP) and an integrated host-charger port-detection circuit that and Dedicated Charging Port (DCP) Modes adheres to the USB 2.0 battery-charging specification Chinese Telecommunication Industry-Standard version 1.2. YD/T 1591-209 The devices are available in 16-pin QSOP and 16-pin USB On-The-Go (OTG) Support (4mm x 4mm) TQFN packages, and operate over the AEC-Q100 Qualified -40C to +105C temperature range. The MAX16972 and MAX16972A are drop-in compatible with the MAX16970, MAX16971, MAX16970A, MAX16971A, MAX16917, Typical Operating Circuit and Ordering Information appear MAX16919, and MAX16969 devices. at end of data sheet. Applications Automotive Radio and Navigation USB Hub Automotive Connectivity Telematics Apple, iPhone and iPad are registered trademarks of Apple, Inc. 19-100346 Rev 1 8/18MAX16972/MAX16972A 3A Automotive Hi-Speed USB Protectors with Apple iPhone/iPad and USB 2.0 Charge Detection Simplified Block Diagram EXTERNAL DMOS FORWARD DIRECTION S DMOS G DMOS MAX16972 CHARGE MAX16972A PUMP LV ESD LV ESD CLAMP CHARGE CLAMP PUMP HVBUS BUS 15kV IEC LV ESD SHORT- 25mA FORWARD UNDER- SCR CLAMP TO- CURRENT CURRENT VOLTAGE CLAMP GROUND SOURCE DETECTION LOCKOUT OVP FAULT (SHORT-TO- BATTERY EN CONTROL AND/OR CHEN SHORT TO ISET VBUS) IN THERMAL SHUTDOWN LV ESD CLAMP HVD+ D+ HOST CHARGER AND 15kV IEC APPLE SCR CLAMP FAST-CHARGE CONTROL CIRCUITRY HVD- D- 15kV IEC SCR CLAMP GND Maxim Integrated 2 www.maximintegrated.com