MAX16970
3A Automotive Hi-Speed USB Protectors with Apple iPhone/iPad and USB 2.0 Charge Detection
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Industry's Lowest USB Power FET Resistance with Compliance to BC1.2 and Apple iPhone/iPad Charging Specifications
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Features
- Minimized Voltage Drop on Bus Line Due to Industry- Leading RDS(ON) Helps Meet USB Voltage Specifications at Device Connector
- Current-Limited 31mΩ (typ) BUS Switch with High- Capacitive Load Capability
- Robust Overvoltage and ESD Protection for Automotive Environment Saves on External Protection Components
- Short-to-Battery and Short-to-GND Protection on Protected HVBUS Output
- Short-to-Battery and Short-to-HVBUS Protection on Protected HVD+ and HVD- Outputs
- Two 4.0Ω (typ) RON USB 2.0 Data Switches
- Integrated Overcurrent and Short-Circuit Autoretry
- High ESD Protection (HVD+, HVD-, HVBUS)
- ± 15kV Human Body Model
- ± 15kV IEC 61000-4-2 Air Gap
- ± 8kV IEC 61000-4-2 Contact
- 20ms Fault-Blanking Timeout Period
- Automatic Transitioning of Charge Modes Through Intelligent State Machine for Seamless Device Integration
- Integrated Apple iPhone 1.0A Dedicated Charging Mode
- Integrated Apple iPad 2.1A Dedicated Charging Mode
- USB-IF BC1.2 Charging Downstream Port (CDP) and Dedicated Charging Port (DCP) Modes
- Chinese Telecommunication Industry-Standard YD/T 1591-209
- USB On-The-Go (OTG) Support
- Drop-In Pin Compatibility with MAX16919/MAX16969 in 16-Pin QSOP Package
- AEC-Q100 Qualified
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The MAX16970/MAX16971 provide high-ESD and short-circuit protection for the low-voltage internal USB data and USB power line in automotive radio, navigation, connectivity, and USB hub applications. The devices support both Hi-Speed USB (480Mbps) and full-speed USB (12Mbps) operation. In addition, the devices also include integrated circuitry to enable fast-charging for consumer devices adhering to either the Apple method or the Hi-Speed USB host-charger port-detection protocol and support USB On-The-Go (OTG).
The short-circuit protection features include short-to-battery on the protected HVBUS, HVD+, and HVD- outputs, as well as short-to-HVBUS on the protected HVD+ and HVD- outputs. The devices are capable of a short-to-battery condition of up to +18V. Short-to-GND and overcurrent protection are also provided on the HVBUS output to protect the internal BUS power rail from overcurrent faults.
Each device features high-ESD protection to ±15kV Air Gap method and ±8kV Contact method on all protected HVBUS, HVD+, and HVD- outputs.
Each device features two low 4.0Ω on-resistance Hi-Speed USB switches, a current-limited low-voltage 31mΩ BUS switch, and provides an integrated high-voltage external power-switch controller. The BUS switch can start up into large capacitive noncompliant USB loads. The devices also feature an enable input, a fault output, integrated Apple iPhone®/iPad® fast-charging termination resistors, and an integrated host-charger port-detection circuit adhering to the USB 2.0 battery charging specification version 1.2.
The devices are available in 16-pin QSOP and 16-pin (4mm × 4mm) TQFN packages and operate over the -40°C to +105°C temperature range. The MAX16970GEEA/V+ and MAX16971GEEA/V+ are drop-in compatible with MAX16969DGEE/V+ and MAX16969BGEE/V+, respectively.
Applications
- Automotive Connectivity
- Automotive Radio and Navigation
- Telematics
- USB Hub
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MAX16970
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Software & Part Ecosystem
Evaluation Kits 1
MAX16971EVKIT
Evaluation Kit for MAX16970/MAX16971
Features and Benefits
- Integrated Dedicated-Charging and Host-Charger Port-Detection Circuitry
- Supports Charging Current from 500mA to 3A
- USB 2.0-Compliant LS/FS and HS Operation
- Short-to-Battery, Short-to-Ground, and Overcurrent Protection on Protected HVBUS Output
- Short-to-Battery and Short-to-HVBUS Protection on Protected HVD+ and HVD- Outputs
- USB-Powered or User-Supplied Power Supplies
- Fully Assembled and Tested
- Proven PCB Layout
Product Detail
The MAX16971 evaluation kit (EV kit) demonstrates the MAX16970/MAX16971 automotive USB 2.0 protector ICs. The devices support Hi-Speed, full-speed, and low-speed operation. In addition, the devices also include integrated circuitry to enable fast charging for consumer devices adhering to the Apple® 1A dedicated charging mode, the USB-IF host-charger port-detection protocol, and the China YD/T 1591-2009 standard. Dedicated charging modes feature autodetection, which automatically selects the correct dedicated charging protocol for the connected portable device (PD). The device part numbers with GEEB and GTEB suffixes also support independent control of the +5V bus per the USB-IF OTG specification, and add Apple 2.1A dedicated charging support.
The EV kit comes with the MAX16971GEEA/V+ installed, and uses an on-board MAX15007A automotive regulator to provide the IN logic power supply. Contact the factory for free samples of the pin-compatible variants of the MAX16970/MAX16971 ICs, which offer additional dedicated charging-mode functionality and active-low enable logic.
Applications
- Automotive Connectivity
- Automotive Radio and Navigation
- Telematics
- USB Hub