EVALUATION KIT AVAILABLE MAX15091/MAX15091A 2.7V to 18V, 9A, Integrated Hot-Swap Solution with Current Report Output General Description Benefits and Features The MAX15091/MAX15091A ICs are integrated solutions Integration Reduces Solution Size for Blade Servers for hot-swap applications requiring the safe insertion and and Other Space-Constrained Designs removal of circuit line cards from a live backplane. The Integrated 18m (typ) Internal Power MOSFET devices integrate a hot-swap controller, 18m (typ) power Overvoltage Protection Power-Good and Fault Outputs MOSFET, and an electronic circuit-breaker protection in a single package. Analog Current Report Output without Need for External R SENSE The devices integrate an accurate current-sense circuitry Thermal Protection and provide 170A/A of proportional output current. The devices are designed for protection of 2.7V to 18V supply Flexibility Enables Use in Many Unique Designs 2.7V to 18V Operating Voltage Range voltages. Programmable Inrush Current Control Under SOA These devices implement a foldback current limit during Operation startup to control inrush current lowering di/dt and keep the Adjustable Circuit-Breaker Current/Current-Limit MOSFET operating under safe operating area (SOA) con- Threshold ditions. After the startup cycle is complete, on-chip compar- Programmable Slew-Rate Control ators provide VariableSpeed/BiLevel protection against Programmable Undervoltage Lockout short-circuit and overcurrent faults, and immunity against Variable-Speed Circuit-Breaker Response system noise and load transients. The load is disconnect- Latchoff or Automatic Retry Options ed in the event of a fault condition. The devices are factory Safety Features Ensure Accurate, Robust Protection calibrated to deliver accurate overcurrent protection with 9A (max) Load Current Capability 10% accuracy. During a fault condition, the MAX15091 10% Circuit-Breaker Threshold Accuracy latches off, while the MAX15091A enters autoretry mode. Inrush Current Regulated at Startup with Foldback The devices feature an IN to OUT short-circuit detection Implementation for di/dt Control before startup. The devices provide a power-MOSFET IN-to-OUT Short-Circuit Detection GATE pin to program the slew rate during startup by add- ing an external capacitor. The devices have overvoltage/ Applications undervoltage input pins that can detect an overvoltage/ Blade Servers undervoltage fault and disconnect the IN from the OUT. Server I/O Cards Additional features include internal overtemperature pro- RAID Systems tection, power-good output, and fault-indicator output. Disk Drive Power The MAX15091/MAX15091A are available in a 28-pin, Storage Applications 5mm x 5mm TQFN power package and are rated over the Industrial Applications -40C to +85C extended temperature range. For related parts and recommended products to use with this Ordering Information appears at end of data sheet. part, refer to www.maximintegrated.com/MAX15091.related. Typical Application Circuit appears at end of data sheet. VariableSpeed/BiLevel is a trademark of Maxim Integrated Products, Inc. 19-6625 Rev 2 1/15MAX15091/MAX15091A 2.7V to 18V, 9A, Integrated Hot-Swap Solution with Current Report Output Absolute Maximum Ratings V to GND ..........................................................-0.3V to +20V Continuous Power Dissipation (T = +70NC) CC A IN to GND ..............................................................-0.3V to +20V TQFN (derate 34.5mW/NC above +70NC)...............2758.6mW OUT to GND ...............................................-0.3V to (V + 0.3V) Operating Temperature Range ........................... -40NC to +85NC IN GATE to OUT ..........................................................-0.3V to +6V Junction Temperature ......................................................+150NC CDLY, ISENSE to GND ..........................-0.3V to (V + 0.3V) Storage Temperature Range ............................ -60NC to +150NC REG EN, CB, UV, OV to GND .........................................-0.3V to +6V Lead Temperature (soldering, 10s) .................................+300NC REG to GND ............................-0.3V to min (+6V, (V + 0.3V)) Soldering Temperature (reflow) .......................................+260NC CC PG, FAULT to GND ...............................................-0.3V to +20V 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 Thermal Characteristics (Note 1) Junction-to-Ambient Thermal Resistance ( q ) ..............29C/W JA Junction-to-Case Thermal Resistance ( q ) .....................2C/W JC Note 1: 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. Thermal resistance can be lowered with improved board design. Electrical Characteristics (V = V = 2.7V to 18V, T = T = -40C to +85C, unless otherwise noted. Typical values are at V = 12V, R = 25k, and T IN CC A J IN CB A = +25C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLIES V Operating Range V 2.7 18 V CC CC IN Operating Range V 2.7 18 V IN V Supply Current I V = 3V 0.4 0.65 mA CC CC IN R = 25k, no load 3.3 3.6 CB IN Supply Current I mA IN R = 10k, no load 1.75 2 CB V Default Undervoltage CC V V rising 2.35 2.5 2.65 V UVLO CC Lockout V Default Undervoltage- CC V 0.1 V UVLO HYS Lockout Hysteresis REG Regulator Voltage V No load, V > 4V 3 3.3 3.5 V REG CC UV Turn-On Threshold V V rising 1.18 1.2 1.22 V UV TH UV UV Turn-On Threshold V V falling 0.1 V UV HYS UV Hysteresis OV Turn-On Threshold V V rising 1.18 1.2 1.22 V OV TH OV OV Turn-On Threshold V V falling 0.1 V OV HYS OV Hysteresis 0.95 1 1.05 V EN Threshold V V rising EN TH EN V V falling 0.1 V EN Threshold Hysteresis EN HYS EN Maxim Integrated 2 www.maximintegrated.com