MAX20046
Automotive Hi-Speed USB 2.0 Protector
Tiny Solution for Module-to-Module Connections with Best-in-Class Eye Diagram and Integrated Protection
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The short-circuit protection features include short-to-battery on the protected HVBUS, as well as short-to-HVBUS and short-to-battery on the protected HVD+ and HVD-. Short-to-GND and overcurrent protection are also provided on the protected HVBUS output to protect the internal BUS power rail from overcurrent faults.
The device features high-ESD protection to ±15kV Air Gap and ±8kV Contact on the protected HVBUS, HVD+, and HVD- outputs.
The device features a 500mΩ (max) USB power switch, and two low on-resistance (RON), USB 2.0 data switches. This device also features an enable input, fault output, 10ms fault-recovery time, 1ms overcurrent-blanking time, and integrated overcurrent autoretry.
The MAX20046 is available in a 12-pin lead-free, TQFN-EP package and operate over the -40°C to +105°C temperature range.
Key Features
- Low 23mA/45mA (MAX20046GTCA/V+) or 60/120mA (MAX20046GTCC/V+) Current Threshold for Module-to-Module Applications
- Targeted Features for Optimized USB Performance
- Two RON 3.3Ω (typ) USB 2.0 Data Switches
- 480Mbps, 12Mbps or 1.5Mbps USB 2.0 Operation
- 9ms Fault-Recovery Time
- 1ms Overcurrent Blanking Time
- 5.7V (typ) Fixed HVBUS Protection Trip Threshold
- Robust for the Automotive Environment
- Short-to-Battery and Short-to-GND Protection on Protected HVBUS Output
- Short-to-Battery and Short-to-HVBUS Protection on HVD+ and HVD- Outputs
- Tested to ISO 10605 and IEC 61000-4-2 ESD Standards
- 12-Pin (3mm × 3mm) TQFN-EP Package
- -40°C to +105°C Operating Temperature Range
- AEC-Q100 Qualified
Applications/Uses
- Automotive USB Protection
Technical Docs
| Data Sheet | Automotive Hi-Speed USB 2.0 Protector | Mar 23, 2020 |
Click any title below to view the detail page where available.
Description
The MAX20046 evaluation kit (EV kit) demonstrates the MAX20046 automotive Hi-Speed USB 2.0 protector switch IC, featuring overvoltage protection (OVP), electrostatic discharge (ESD) protection, and undervoltage lockout (UVLO)/overcurrent protection (OCP) for automotive USB applications.
The device protects the USB BUS, D+, and D- data lines from overvoltage conditions, such as a short-to-battery and ESD events. UVLO protects the BUS against lowvoltage conditions such as a short-to-ground. The BUS OCP uses a blanking period allowing momentary BUS shorts to be ignored. All faults can be monitored using the active-low FAULT output signal.
The device can pass high-speed USB differential (D+ and D-) signals up to 480Mbps and has a low 500mΩ RON (max) for the BUS and a 3.3Ω RON (typ) for the D+ and D- lines. The EV kit is powered by the USB BUS. An on-board MAX15007A automotive regulator provides the IN reference voltage. If a 60mA/120mA current threshold is desired, the MAX20046GTC/V+ can be ordered and interchanged with U1.
View DetailsFeatures
- Protects USB BUS, D+, and D- Signals from Overvoltages Up to 18V and ESD Events
- USB BUS Undervoltage Lockout
- 23mA/45mA (typ) USB BUS Overcurrent-Protection Threshold
- 1ms Overcurrent Blanking Time
- Passes 480Mbps USB Data Signals
- Low On-Resistance
- BUS: 500mΩ (max)
- D+ and D-: 3.3Ω (typ)
- Active-Low FAULT Output Signal
- USB Powered
- Fully Assembled and Tested
- Evaluates the MAX20046 IC in a 12-Pin TQFN Package
Support & Training
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Parameters
Key Features
- Low 23mA/45mA (MAX20046GTCA/V+) or 60/120mA (MAX20046GTCC/V+) Current Threshold for Module-to-Module Applications
- Targeted Features for Optimized USB Performance
- Two RON 3.3Ω (typ) USB 2.0 Data Switches
- 480Mbps, 12Mbps or 1.5Mbps USB 2.0 Operation
- 9ms Fault-Recovery Time
- 1ms Overcurrent Blanking Time
- 5.7V (typ) Fixed HVBUS Protection Trip Threshold
- Robust for the Automotive Environment
- Short-to-Battery and Short-to-GND Protection on Protected HVBUS Output
- Short-to-Battery and Short-to-HVBUS Protection on HVD+ and HVD- Outputs
- Tested to ISO 10605 and IEC 61000-4-2 ESD Standards
- 12-Pin (3mm × 3mm) TQFN-EP Package
- -40°C to +105°C Operating Temperature Range
- AEC-Q100 Qualified
Applications/Uses
- Automotive USB Protection
Description
The short-circuit protection features include short-to-battery on the protected HVBUS, as well as short-to-HVBUS and short-to-battery on the protected HVD+ and HVD-. Short-to-GND and overcurrent protection are also provided on the protected HVBUS output to protect the internal BUS power rail from overcurrent faults.
The device features high-ESD protection to ±15kV Air Gap and ±8kV Contact on the protected HVBUS, HVD+, and HVD- outputs.
The device features a 500mΩ (max) USB power switch, and two low on-resistance (RON), USB 2.0 data switches. This device also features an enable input, fault output, 10ms fault-recovery time, 1ms overcurrent-blanking time, and integrated overcurrent autoretry.
The MAX20046 is available in a 12-pin lead-free, TQFN-EP package and operate over the -40°C to +105°C temperature range.
Technical Docs
| Data Sheet | Automotive Hi-Speed USB 2.0 Protector | Mar 23, 2020 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
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