EVALUATION KIT AVAILABLE MAX8586 Single 1.2A USB Switch in 3mm x 3mm TDFN General Description Features The MAX8586 single current-limited switch controls up to Reverse Current Protection 1.2A to power USB applications and has multiple protec- Programmable Current Limit Up to 1.2A tion features including thermal shutdown, internal current Accurate Current Limit limiting, and reverse current protection. The thermal shut- down limits junction temperature during a prolonged Selectable Auto-Restart when Fault Is Removed short or overload condition. The internal current-limiting Thermal-Overload Protection circuitry protects the input supply against overload and is programmable using an external resistor. The Selectable Active-High/Low ON Input MAX8586 meets all IEC specifications for USB ports. Built-In 20ms Fault Blanking The IC latches off when the output experiences a short Compliant with All USB Specifications circuit for more than 20ms, saving system power. Auto- 2.75V to 5.5V Input Supply Range restart tests the shorted output with a 25mA current to determine if the short still exists. Once the short is FAULT Indicator Output removed, the MAX8586 automatically restarts the out- 15kV ESD Protection (with Caps) put. An open-drain fault signal notifies the system that the internal current limit has been reached. A 20ms Tiny 8-Pin 3mm x 3mm TDFN Package fault-blanking feature allows the circuit to ignore momentary faults such as those caused when hot- Applications swapping into a capacitive load. An ENRESET input is USB Ports/Hubs available to disable the auto-restart function. The MAX8586 features a SEL input that programs ON Desktop/Notebook Computers to be either active high or active low. The IC is supplied PDAs and Palmtop Computers in a space-saving, 8-pin, 3mm x 3mm TDFN package. Docking Stations Ordering Information Typical Operating Circuit PIN- TOP PART TEMP RANGE PACKAGE MARK INPUT SUPPLY OUTPUT SUPPLY 8 TDFN 2.75V TO 5.5V UP TO 1.2A IN OUT MAX8586ETA -40C to +85C 3mm x 3mm AMH (T833-2) OUTPUT MAX8586 8 TDFN FAULT AUTO-RESTART INDICATOR MAX8586ETA+ -40C to +85C 3mm x 3mm AMH ON/OFF ENRESET FAULT (T833-2) 8 TDFN ON/OFF MAX8586ETA+T -40C to +85C 3mm x 3mm AMH SEL POLARITY (T833-2) SELECTION ISET 8 TDFN ON ON/OFF MAX8586ETA/V+ -40C to +85C 3mm x 3mm BLU CONTROL (T833-2) GND /V denotes an automotive qualified part. +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. Pin Configuration appears at end of data sheet. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrateds website at www.maximintegrated.com. 19-3449 Rev 4 8/21MAX8586 Single 1.2A USB Switch in 3mm x 3mm TDFN ABSOLUTE MAXIMUM RATINGS IN, ON, SEL, OUT, FAULT, ISET, ENRESET to GND..-0.3V to +6V Operating Temperature Range ...........................-40C to +85C Junction Temperature......................................................+150C IN to OUT.....................................................................-6V to +6V FAULT Sink Current ............................................................20mA Storage Temperature Range .............................-65C to +150C Soldering Temperature (reflow) .......................................+260C Continuous Power Dissipation 8-Pin 3mm x 3mm TDFN (derate 24mW/C above +70C)................................1951mW 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. ELECTRICAL CHARACTERISTICS (V = V = V = V = 5V, R = 26k to GND, R = 100k pullup to V , C = 0.1F, T = -40C to +85C. IN ON SEL ENRESET ISET FAULT IN OUT A Typical values are at T = +25C, unless otherwise specified.) (Note 1) A PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Voltage Range 2.75 5.50 V V = 5V 55 IN Switch On-Resistance V = 3V 65 m IN V = 4.4V 95 IN IN Standby Supply Current V = 0V 3 6 A ON IN Quiescent Supply Current I = 0A 30 55 A OUT T = +25C 0.02 1 A OUT Off-Leakage Current V = 0V, V = 0V A ON OUT T = +85C 0.6 A Undervoltage-Lockout Threshold Rising edge, 3% hysteresis (typ) 2.3 2.5 2.7 V R = 26k 1.2 1.4 1.6 ISET Current-Limit Threshold R = 39k 0.800 0.925 1.050 A ISET R = 60k 0.5 0.6 0.7 ISET R = 26k 1.35 1.75 2.20 ISET V = 0V, OUT Peak Short-Circuit Current Limit R = 39k 1.2 A (Peak) ISET (I pulsing) OUT R = 60k 0.74 ISET R = 26k 0.55 ISET V = 0V, OUT RMS Short-Circuit Current Limit R = 39k 0.37 A (RMS) ISET (I pulsing) OUT R = 60k 0.23 ISET Short-Circuit/Continuous Current Limit (Note 2) 1 V Transition Threshold Fault-Blanking Timeout Period From current-limit condition to FAULT falling 8 20 40 ms 2 Maxim Integrated