MAX5900:-100V, SOT23/TDFN, Simple Swapper Hot-Swap Controllers

The MAX5900/MAX5901 are SOT23/TDFN hot-swap controllers that allow a circuit card to be safely hot-plugged into a live backplane without causing a glitch on the power-supply rail. These devices operate from -9V to -100V and provide the simplest hot-swap solution by eliminating all external components except an external n-channel MOSFET. The MAX5900/MAX5901 limit the inrush current to the load and provide a circuit-breaker function for overcurrent protection. During startup, the circuit-breaker function is disabled and the MAX5900/MAX5901 limit the inrush current by gradually turning on the external MOSFET. Once the external MOSFET is fully enhanced, the circuit-breaker function is enabled and the MAX5900/MAX5901 provide overcurrent protection by monitoring the voltage drop across the external MOSFET's on-resistance. The MAX5900/MAX5901 include an undervoltage lockout (UVLO) function, ON/active-low OFF control input, and a powergood status output, active-low PGOOD (MAX5900) or PGOOD (MAX5901). A built-in thermal shutdown feature is also included to protect the external MOSFET in case of overheating. The MAX5900/MAX5901 offer latched or autoretry fault management and are available with 200mV, 300mV, or 400mV circuit-breaker thresholds. Both the MAX5900 and MAX5901 are available in small SOT23 and TDFN packages, and are specified for the extended -40°C to +85°C temperature range. For specific ordering information see the Selector Guide at the end of the data sheet.

Key Features
  • Wide -9V to -100V Operation
  • Requires No External Sense Resistor
  • Drives External N-Channel MOSFET
  • Limits Inrush Current
  • Circuit-Breaker Function
  • Less than 1mA Quiescent Current
  • ON/Active-Low OFF Input Permits Load Power-Supply Control and Sequencing
  • Adjustable Undervoltage Lockout
  • Power-Good Output with 100V Rating
  • Latching or Automatic Retry Fault Management
  • Thermal Shutdown Helps Protect the External MOSFET
  • Space-Saving 6-Pin SOT23 and TDFN Packages
MAX5900, MAX5901: Typical Operating Circuit
MAX5900, MAX5901: Typical Operating Circuit
Applications/Uses
  • Base-Station Line Cards
  • Network Hubs, Switches, Routers
  • Servers
  • Telecom Line Cards
DataSheet
titleDownload file
MAX5900-MAX5901 Data SheetMAX5900-MAX5901.pdf
Parametrics
Part NumberVIN
(V)
VIN
(V)
Circuit Breaker/ Current LimitCircuit Breaker/Current Limit Threshold
(mV)
Fault Condition ControlChannelsPositive/Negative RailFeaturesPackage/PinsBudgetary
Price
minmaxSee Notes
MAX5900-9-100Circuit Breaker200 to 400Latched Off
Periodic Retry
1NegativeRequires No RSENSESOT/6
TDFN-EP/6
$2.06 @1k
MAX5901SOT/6
TDFN-EP/6
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5900AAETT+ActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX5900AAETT+TActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX5900AAETT-TNo Longer AvailableMAX5900AAETT+TTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CNo
MAX5900AAEUT+ActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900AAEUT+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900AAEUT-TNo Longer AvailableMAX5900AAEUT+SOT,;6 pin;9 mm²-40°C to +85°CNo
MAX5900ABETT+ActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX5900ABETT+TActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX5900ABETT-TNo Longer AvailableMAX5900ABETT+TTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CNo
MAX5900ABEUT+ActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5900ABEUT+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900ABEUT-TNo Longer AvailableMAX5900ABEUT+SOT,;6 pin;9 mm²-40°C to +85°CNo
MAX5900ACETT+ActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX5900ACETT+TActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX5900ACETT-TNo Longer AvailableMAX5900ACETT+TTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CNo
MAX5900ACEUT+ActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900ACEUT+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900ACEUT-TNo Longer AvailableMAX5900ACEUT+SOT,;6 pin;9 mm²-40°C to +85°CNo
MAX5900EUT-TNo Longer AvailableSOT;-40°C to +85°CSee data sheet
MAX5900LAETT+TNo Longer AvailableTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5900LAETT-TNo Longer AvailableTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CNo
MAX5900LAEUT+No Longer AvailableSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900LAEUT+TNo Longer AvailableSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900LAEUT-TNo Longer AvailableSOT,;6 pin;9 mm²-40°C to +85°CNo
MAX5900LBETT+ActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX5900LBETT+TActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX5900LBETT-TNo Longer AvailableMAX5900LBETT+TTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CNo
MAX5900LBEUT+ActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900LBEUT+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900LBEUT-TNo Longer AvailableMAX5900LBEUT+SOT,;6 pin;9 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5900LCETT+TNo Longer AvailableTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX5900LCETT-TNo Longer AvailableTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CNo
MAX5900LCEUT+ActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900LCEUT+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900LCEUT-TNo Longer AvailableMAX5900LCEUT+SOT,;6 pin;9 mm²-40°C to +85°CNo
MAX5900NNETT+TNo Longer AvailableTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX5900NNETT-TNo Longer AvailableTDFN;6 pin-40°C to +85°CSee data sheet
MAX5900NNEUT+ActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900NNEUT+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX5900NNEUT-TNo Longer AvailableMAX5900NNEUT+SOT,;6 pin;9 mm²-40°C to +85°CNo
MAX5900-MAX5901.pdf MAX5901
Understanding, Using, and Selecting Hot-Swap Controllers MAX5900
Advantages of IC-Based Hot-Swap Circuit Protection MAX5943
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