MAX5934/MAX5934A 19-3282 Rev 1 7/04 Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity General Description Features The MAX5934/MAX5934A are fully integrated hot-swap Provides Safe Hot Swap for +9V to +80V Power controllers for +9V to +80V (MAX5934A) positive supply Supplies (MAX5934A) rails. The MAX5934 is optimized for +33V to +80V Safe Board Insertion and Removal from a Live power-supply rails. These devices allow for the safe Backplane insertion and removal of circuit cards into a live back- Pin-Selectable Active-Low or Active-High Power- plane without causing glitches on the backplane power-supply rail. The MAX5934/MAX5934A feature a Good Output programmable analog foldback current limit, program- Pin-Selectable Latched or Autoretry Fault mable undervoltage lockout, and programmable out- Management put-voltage slew rate through an external n-channel Programmable Foldback Current Limiting MOSFET. In addition, if these devices remain in current limit for more than a programmable time, the external High-Side Drive for an External N-Channel MOSFET n-channel MOSFET latches off. Built-In Thermal Shutdown The MAX5934/MAX5934A feature pin-selectable Undervoltage Lockout (UVLO) PWRGD assertion polarity (active low or active high) and pin-selectable fault management (latched or Pin-Selectable Duty-Cycle Options (0.94%, 1.88%, autoretry). Other features include automatic restart after 3.75%) a circuit-breaker fault, selectable duty-cycle (DC) Ordering Information options, and thermal-shutdown mode for overtempera- ture protection. PART TEMP RANGE PIN-PACKAGE The MAX5934/MAX5934A operate in the extended MAX5934EEE -40C to +85C 16 QSOP (-40C to +85C) temperature range and are available in a 16-pin QSOP package. MAX5934AEEE -40C to +85C 16 QSOP Applications Hot Board Insertion Pin Configuration Electronic Circuit Breakers Industrial High-Side Switch/Circuit Breakers TOP VIEW Network Routers and Switches LATCH/RETRY 1 16 V CC 24V/48V Industrial/Alarm Systems ON 2 15 DC POL SEL 14 SENSE 3 FB1 4 MAX5934 13 N.C. MAX5934A PWRGD2 5 12 FB2 Typical Application Circuit appears at end of data sheet. PWRGD1 6 11 GATE PWRGD3 7 10 TIMER GND 8 9 OUT QSOP Selector Guide LATCHED/ DEFAULT UVLO SUPPLY VOLTAGE PWRGD AUTORETRY FAULT PART DUTY CYCLE (V) RANGE (V) OUTPUT LOGIC PROTECTION MAX5934 31 +33 to +80 Pin-selectable Pin-selectable Pin-selectable MAX5934A 8.3 +9 to +80 Pin-selectable Pin-selectable Pin-selectable Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND.) Continuous Power Dissipation (T = +70C) A V .........................................................................-0.3V to +85V 16-Pin QSOP (derate 8.3mW/C above +70C)...........667mW CC SENSE, FB , ON.........................................-0.3V to (V + 0.3V) Operating Temperature Range ...........................-40C to +85C CC TIMER, PWRGD , DC, LATCH/RETRY, POL SEL....-0.3V to +85V Maximum Junction Temperature .....................................+150C GATE ......................................................................-0.3V to +95V Storage Temperature Range .............................-60C to +150C OUT ................................................(V - 14V) to the lower of ESD Rating (Human Body Model)......................................2000V GATE (V + 0.3V) and (V + 0.3V) Lead Temperature (soldering, 10s) .................................+300C GATE CC Maximum GATE Current ....................................-50mA, +150mA Maximum Current into Any Other Pin................................50mA 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 = +24V (MAX5934A), V = +48V (MAX5934), GND = 0V, T = -40C to +85C, unless otherwise noted. Typical values are at CC CC A T = +25C.) (Note 1) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS MAX5934A 9 80 Supply Voltage Range V V CC MAX5934 33 80 Supply Current I V = 3V, V = 80V 1.4 3.5 mA CC ON CC MAX5934A 7.5 8.3 8.8 V low-to-high CC V Undervoltage Lockout V V CC LKO transition MAX5934 29.5 31 32.5 MAX5934A 0.4 V Undervoltage-Lockout CC V V LKOHYST Hysteresis MAX5934 2 FB1 High-Voltage Threshold V FB1 low-to-high transition 1.280 1.313 1.345 V FB1H FB2 High-Voltage Threshold V FB2 low-to-high transition 1.280 1.313 1.345 V FB2H FB1 Low-Voltage Threshold V FB1 high-to-low transition 1.221 1.233 1.245 V FB1L FB2 Low-Voltage Threshold V FB2 high-to-low transition 1.202 1.264 V FB2L FB Hysteresis V 80 mV FBHYST FB Input Bias Current I V = 0V -1 +1 A INFB FB V V 80V, MAX5934A, CC(MIN) CC FB1 Threshold Line Regulation V 0.05 mV/V FB1 ON = 0V V V 80V, MAX5934A, CC(MIN) CC FB2 Threshold Line Regulation V 0.05 mV/V FB2 ON = 0V V = 0V, T = 0C to +70C 8 12 17 SENSE Trip Voltage FB A V mV SENSETRIP (V - V ) CC SENSE V = 1V, T = 0C to +70C394755 FB A GATE Pullup Current I Charge pump on, V = 7V -5 -10 -20 A GATEUP GATE GATE Pulldown Current I Any fault condition, V = 2V 35 70 100 mA GATEDN GATE (V - V ) at PWRGD3 GATE CC V V - V , low-to-high transition 3.8 4.3 5 V GAT E P WRGD 3 GATE CC Assertion V - V , MAX5934 10 13.6 18 GATE CC External N-Channel Gate Drive V V = 10.8V to 20V 4.5 13.6 18.0 V GATE V - V , CC GATE CC MAX5934A V = 20V to 80V 10 13.6 18 CC TIMER Pullup Current I V = 0V -24 -75 -120 A TIMERUP TIMER 2 MAX5934/MAX5934A