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

Product Details

Key Features

Parametric specs for Hot Swap Controllers
VIN (V) (min) -9
VIN (V) (max) -100
# Channels 1
Circuit Breaker/ Current Limit Circuit Breaker
Circuit Breaker/Current Limit Threshold (mV) 200 to 400
Fault Condition Control Latched Off
Periodic Retry
Positive/Negative Rail Negative
Features Requires No RSENSE
Package/Pins SOT23/6
TDFN/6
Budgetary
Price (See Notes)
2.29
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Simplified Block Diagram

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Parameters

Parametric specs for Hot Swap Controllers
VIN (V) (min) -9
VIN (V) (max) -100
# Channels 1
Circuit Breaker/ Current Limit Circuit Breaker
Circuit Breaker/Current Limit Threshold (mV) 200 to 400
Fault Condition Control Latched Off
Periodic Retry
Positive/Negative Rail Negative
Features Requires No RSENSE
Package/Pins SOT23/6
TDFN/6
Budgetary
Price (See Notes)
2.29

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

Applications/Uses

  • Base-Station Line Cards
  • Network Hubs, Switches, Routers
  • Servers
  • Telecom Line Cards

Description

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.

Simplified Block Diagram

MAX5900, MAX5901: Typical Operating Circuit MAX5900, MAX5901: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.