MAX5900/MAX5901 19-2077 Rev 5 1/07 -100V, SOT23/TDFN, Simple Swapper Hot-Swap Controllers General Description Features Wide -9V to -100V Operation The MAX5900/MAX5901 are SOT23/TDFN hot-swap con- trollers that allow a circuit card to be safely hot-plugged Requires No External Sense Resistor into a live backplane without causing a glitch on Drives External N-Channel MOSFET the power-supply rail. These devices operate from -9V to Limits Inrush Current -100V and provide the simplest hot-swap solution by Circuit-Breaker Function eliminating all external components except an external n-channel MOSFET. Less than 1mA Quiescent Current The MAX5900/MAX5901 limit the inrush current to the ON/OFF Input Permits Load Power-Supply load and provide a circuit-breaker function for overcurrent Control and Sequencing protection. During startup, the circuit-breaker function is Adjustable Undervoltage Lockout disabled and the MAX5900/MAX5901 limit the inrush cur- Power-Good Output with 100V Rating rent by gradually turning on the external MOSFET. Once Latching or Automatic Retry Fault Management the external MOSFET is fully enhanced, the circuit-break- er function is enabled and the MAX5900/MAX5901 pro- Thermal Shutdown Helps Protect the External vide overcurrent protection by monitoring the voltage MOSFET drop across the external MOSFETs on-resistance. Space-Saving 6-Pin SOT23 and TDFN Packages The MAX5900/MAX5901 include an undervoltage lock- out (UVLO) function, ON/OFF control input, and a power- Ordering Information good status output, PGOOD (MAX5900) or PGOOD (MAX5901). A built-in thermal shutdown feature is also PIN- PKG PART TEMP RANGE included to protect the external MOSFET in case of over- PACKAGE CODE heating. MAX5900 EUT+T* -40C to +85C 6 SOT23-6 U6F-6 The MAX5900/MAX5901 offer latched or autoretry fault MAX5900 ETT+T* -40C to +85C 6 TDFN-EP** T633-2 management and are available with 200mV, 300mV, or MAX5901 EUT+T* -40C to +85C 6 SOT23-6 U6F-6 400mV circuit-breaker thresholds. Both the MAX5900 and MAX5901 are available in small SOT23 and TDFN pack- MAX5901 ETT+T* -40C to +85C 6 TDFN-EP** T633-2 ages, and are specified for the extended -40C to +85C *For specific part numbers, see Selector Guide at end of data temperature range. For specific ordering information see sheet. the Selector Guide at the end of the data sheet. +Denotes lead-free package. **EP = Exposed pad. Applications Telecom Line Cards Network Switches Requires No External Sense Resistor Pin Configurations Network Routers Servers Base-Station Line TOP VIEW Cards Typical Operating Circuits V16 ON/OFF EE 50W ISOLATED MAX5900 BACKPLANE CIRCUIT CARD POWER SUPPLY DRAIN 2 5 PGOOD (PGOOD) MAX5901 GND HOT-SWAP CONTROLLER V + 1 GATE34 GND MAX5900 LUCENT JWO50A1 ON/OFF GND PGOOD SOT23 ON/OFF DRAIN ( ) ARE FOR MAX5901 ONLY. V GATE EE V - 1 Pin Configurations continued at end of data sheet. -48V Typical Operating Circuits continued at end of data sheet. IRF540NS FUSE Simple Swapper is a trademark of Maxim Integrated Products, Inc. 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.-100V, SOT23/TDFN, Simple Swapper Hot-Swap Controllers ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND, unless otherwise noted) Continuous Power Dissipation (T = +70C) A V DRAIN, PGOOD, PGOOD ............................-120V to +0.3V 6-Pin SOT23 (derate 9.1mW/C above +70C)...........727mW EE, ON/OFF to V .........................................................-0.3V to +4V 6-Pin TDFN (derate 18.2mW/C above +70C) ........1454mW EE GATE to V ......................................................... -0.3V to +12V Junction to Case Thermal Resistance, (TDFN) ........8.5C/W EE JC Current into Any Pin............................................................3mA Maximum Junction Temperature .....................................+150C Storage Temperature Range .............................-60C 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 = -9V to -100V, GND = 0V, ON/OFF open circuit, T = -40C to +85C, unless otherwise noted. Typical values are at V = -48V EE A EE and T = +25C.) (Notes 1, 2) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V -100 -9 V EE Supply Current I Measured at GND 0.5 1.3 mA GND V = -36V to -72V 7.5 9.5 11.6 EE External Gate Drive V V - V V V = -100V 8 10 11.6 GS GATE EE EE V = -9V 6 7 EE Load Voltage Slew-Rate SR dV /dt , C = 10F, V = -9V to -36V 4.5 10 17 V/ms DRAIN LOAD EE Magnitude Default UVLO V V increasing -34.5 -31.5 -28.5 V UVLO EE UVLO Hysteresis 3.5 V ON/OFF Input Resistance R 20 32 50 k ON/OFF Drain to V Resistance R 466 k EE DVEE ON/OFF Reference V (V - V ) increasing 1.14 1.26 1.38 V ON/OFF ON/OFF EE Threshold ON/OFF Hysteresis 140 mV Start Delay (Note 3) t 150 300 500 ms ON ON/OFF Off Delay (Note 4) t V - V < 1V 9 20 32 ms OFF GATE EE MAX590 AEUT 170 200 240 Circuit-Breaker V V - V MAX590 BEUT 265 300 345 mV CB DRAIN EE Threshold MAX590 CEUT 365 400 455 (V - V ) > V DRAIN EE CB C = 1nF 1.5 3 GATE Circuit-Breaker Delay until (V - V ) < GATE EE t C = 4.7nF 2.5 4.5 s CB GATE (Note 5) 1V, 200mV overdrive C = 10nF 4 6 step GATE Restart Delay (Note 3) t After circuit-breaker event, MAX590 A EUT only 150 300 500 ms RS 2 MAX5900/MAX5901