MAX1607 19-1544 Rev 2 09/07 USB Current-Limited Switch in Pin-Compatible Package General Description Features The MAX1607 is a current-limited 60m switch with SO Package is Pin Compatible with TPS2014, built-in fault blanking. Its accurate, preset 0.7A to 1.0A TPS2015, and TPS2041 current limit makes it ideal for USB applications. Its low Accurate Current Limit (0.7A min, 1.0A max) quiescent supply current (14A) and standby current (1A) conserve battery power in portable applications. Guaranteed 0.75A Short-Circuit Protection The MAX1607 operates with inputs from +2.7V to +5.5V, making it ideal for both 3V and 5V systems. 10ms Internal OC Blanking Timeout An overcurrent signal (OC) notifies the microprocessor No Overcurrent (OC) Signal During Power-Up that the internal current limit has been reached. A 10ms 125m max High-Side MOSFET overcurrent-blanking feature allows momentary faults (such as those caused when hot-swapping into a 500mA Continuous Current capacitive load) to be ignored, thus preventing false Short-Circuit and Thermal Protection with alarms to the host system. This blanking also prevents an OC signal from being issued when the device is Overcurrent Logic Output powering up. 1ms Start-Up Time The MAX1607 has several safety features to ensure that Undervoltage Lockout the USB port is protected. Built-in thermal-overload pro- tection limits power dissipation and junction temperature. 14A Quiescent Supply Current The device also has accurate internal current-limiting circuitry to protect the input supply against overload. 1A max Standby Supply Current The MAX1607 is a pin-compatible upgrade to Texas +2.7V to +5.5V Supply Range Instruments TPS2014, TPS2015, and TPS2041 for USB applications. The same die is available in a space-sav- UL Recognized E211935 ing 10-pin MAX package (MAX1693) and can be Ordering Information used for next-generation designs. The MAX1694 is sim- ilar to the MAX1693, but it has a built-in latch that turns PIN- PKG off the power switch in case of a long-term short- PART TEMP RANGE PACKAGE CODE circuit condition. MAX1607ESA -40C to +85C 8 SO S8-5 The MAX1607 is also offered in a 10-pin TDFN package (not pin compatible with Texas Instruments TPS2014, MAX1607ETB+ -40C to +85C 10 TDFN-EP* T1033-1 TPS2015, and TPS2041 for USB applications). *EP = Exposed paddle. Applications +Denotes a lead-free package. Notebook Computers USB Hubs Typical Operating Circuit USB Ports Docking Stations Pin Configurations INPUT +2.7V TO +5.5V IN OUT OUTPUT TOP VIEW MAX1607 GND 1 8 OUT IN 2 7 OUT MAX1607 OC IN 3 6 OUT OFF EN 4 5 OC EN ON GND SO Pin Configurations continued at end of data sheet. MAX is a registered trademark of Maxim Integrated Products, Inc. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim s website at www.maxim-ic.com.USB Current-Limited Switch in Pin-Compatible Package ABSOLUTE MAXIMUM RATINGS Continuous Power Dissipation (T = +70C) IN, EN, OC to GND.....................................................-0.3 to +6V A 8-Pin SO (derate 5.88mW/C above +70C)................471mW OUT to GND ................................................-0.3V to (V + 0.3V) IN Maximum Switch Current.........................1.2A (internally limited) 10-Pin TDFN (derate 18.5mW/C above +70C) .......1481mW Operating Temperature Range (extended).........-40C to +85C OUT Short-Circuit to GND..........................................Continuous Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C 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 = +5V, T = 0C to +85C, unless otherwise noted. Typical values are at T = +25C.) (Note 2) IN A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OPERATING CONDITION Input Voltage V 2.7 5.5 V IN POWER SWITCH T = +25C V = 4.4V to 5.5V 60 90 A IN Switch Static Drain-Source R V = 4.4V to 5.5V 125 m DS(ON) IN On-State Resistance T = 0C to +85C A V = 3V 72 150 IN Switch Turn-On Time t I = 400mA 80 200 s ON LOAD Switch Turn-Off Time t I = 400mA 36 20 s OFF LOAD ENABLE INPUT (EN) V = 2.7V to 3.6V 2.0 IN V V EN High-Level Input Voltage IH V = 3.7V to 5.5V 2.4 IN V V = 2.7V to 5.5V 0.8 V EN Low-Level Input Voltage IL IN EN Input Current V = V or GND -1 +1 A EN IN V = 5V, C = 150F from EN driven IN OUT Start-Up Time 1 ms low to 50% full V OUT CURRENT LIMIT Overload Output Current I Force V to 4.5V 700 850 1000 mA LIMIT OUT Short-Circuit Output Current I OUT shorted to GND 500 700 mA SC SUPPLY CURRENT Supply Current, Low-Level Input V = V = V = 5.5V 0.001 1 A EN IN OUT Timer not running 14 25 Supply Current, High-Level I V = GND, I = 0 A Q EN OUT Input Timer running 35 T = +25C 0.01 2 V = V = 5.5V, A EN IN Supply Leakage Current A V = GND OUT T = 0C to +85C 15 A UNDERVOLTAGE LOCKOUT Undervoltage Lockout UVLO Rising edge, 100mV hysteresis 2.0 2.4 2.6 V OVERCURRENT (OC) OC Output Low Voltage V I = 1mA, V = 3V 0.4 V OL SINK IN V = V = 5V 1 A OC Off-State Current IN OC OC Blanking Timeout Period t From overcurrent condition to OC assertion 710 13 ms BL THERMAL SHUTDOWN Thermal Shutdown Threshold +165 C 2 MAX1607