EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX20046 Automotive Hi-Speed USB 2.0 Protector General Description Benefits and Features The MAX20046 device provides high-ESD and short- Low 23mA/45mA (MAX20046GTCA/V+) or 60/120mA (MAX20046GTC/V+) Current Threshold for circuit protection for the low-voltage internal USB data Module-to-Module and Peripheral USB Connections and USB power line in automotive radio, navigation, Targeted Features for Optimized USB Performance connectivity, and USB hub applications. The device Two R 3.3 (typ) USB 2.0 Data Switches supports USB Hi-Speed (480Mbps), USB full-speed ON 480Mbps, 12Mbps or 1.5Mbps USB 2.0 Operation (12Mbps), and USB low-speed (1.5Mbps) operation. 9ms Fault-Recovery Time The short-circuit protection features include short-to- 1ms Overcurrent Blanking Time battery on the protected HVBUS, as well as short-to- 5.7V (typ) Fixed HVBUS Protection Trip Threshold HVBUS and short-to-battery on the protected HVD+ and Robust for the Automotive Environment HVD-. Short-to-GND and overcurrent protection are also Short-to-Battery and Short-to-GND Protection on provided on the protected HVBUS output to protect the Protected HVBUS Output internal BUS power rail from overcurrent faults. Short-to-Battery and Short-to-HVBUS Protection The device features high-ESD protection to 15kV Air Gap on HVD+ and HVD- Outputs and 8kV Contact on the protected HVBUS, HVD+, and Tested to ISO 10605 and IEC 61000-4-2 ESD HVD- outputs. Standards 12-Pin (3mm x 3mm) TQFN-EP Package The device features a 500m (max) USB power switch, -40C to +105C Operating Temperature Range and two low on-resistance (R ), USB 2.0 data switches. ON AEC-Q100 Qualified This device also features an enable input, fault output, 9ms fault-recovery time, 1ms overcurrent-blanking time, and Applications integrated overcurrent autoretry. Automotive USB Protection The MAX20046 is available in a 12-pin lead-free, TQFN-EP package and operate over the -40C to +105C temperature range. Ordering Information appears at end of data sheet. Functional Diagram appears at end of data sheet. Typical Operating Circuit +3.3V 10uF HVBUS IN BUS +5V 100k 0.1uF 1 10uF ISET FAULT 10uF MAX20046 USB CONNECTOR EN LOW-VOLTAGE USB HVD+ D+ TRANSCEIVER HVD- GND D- 19-8729 Rev 3 1/20MAX20046 Automotive Hi-Speed USB 2.0 Protector Absolute Maximum Ratings (All voltages referenced to GND.) D+, D- to IN ........................................................................+0.3V BUS, IN ...................................................................-0.3V to +6V HVBUS, HVD+, HVD- ...........................................-0.3V to +18V FAULT, EN, D+, D-, ISET ........................................-0.3V to +6V Stresses beyond those listed under Absolute Maximum Ratings may 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 in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Package Information PACKAGE TYPE: 12 TQFN Package Code T1233+5C Outline Number 21-0136 Land Pattern Number 90-0019 PACKAGE TYPE: 12 SW TQFN Package Code T1233Y+5C Outline Number 21-100171 Land Pattern Number 90-100060 THERMAL RESISTANCE, FOUR-LAYER BOARD Junction to Ambient ( ) 46.9C/W JA Junction to Case ( ) 5.27C/W JC For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a +, , or - in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Electrical Characteristics (V = 5.0V V = +3.3V, T = T = -40C to +105C. R = , unless otherwise noted. Typical values are at V = 0V or V = 3.3V BUS IN J A L EN EN and T = +25C, unless otherwise noted.) (Note 1) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY Power-Supply Range (BUS) V 4.75 5.5 V BUS Power-Supply Range (IN) V 3.0 3.6 V IN V = 0V, no load, no fault EN 440 (MAX20046GTCA/V+) BUS Input Current I A V = 0V, no load, no BUS EN fault (MAX20046GTC/V+, 500 MAX20046AGTC/V+) IN Input Current I V = 0V, no load, no fault 12 A IN EN BUS Undervoltage Lockout V V falling (Figure 1) 3.85 4.2 4.55 V UVLO BUS Maxim Integrated 2 www.maximintegrated.com