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STMicroelectronics STEF01 fully programmable universal electronic fuse

The STEF01 is a universal integrated electronic fuse optimized for monitoring output current and the input voltage on DC power lines

STMicroelectronics STEF01 product image

The STEF01 is a universal integrated electronic fuse optimized for monitoring output current and the input voltage on DC power lines.

When connected in series to the main power rail, it is able to detect and react to overcurrent and overvoltage conditions. When an overload condition occurs, the device limits the output current to a safe value defined by the user. If the anomalous overload condition persists, the device goes into an open state, disconnecting the load from the power supply.

The device is fully programmable.

 

Key features

  • Operating input voltage range: 8 to 48 V
  • Absolute maximum input voltage: 55 V
  • Continuous current typ.: 4 A
  • N-channel on-resistance typ.: 30 mΩ

 

Additional features

  • Operating input voltage range: 8 to 48 V
  • Absolute maximum input voltage: 55 V
  • Continuous current typ.: 4 A
  • N-channel on-resistance typ.: 30 mΩ
  • Enable/fault functions
  • Output clamp voltage: adjustable from 10 to 52 V
  • Programmable undervoltage lockout
  • Short-circuit current limit
  • Programmable overload current limit
  • Adjustable soft-start time
  • Latch or auto-retry thermal protection
  • Maximum allowable power protection
  • Power Good
  • Drives an optional external reverse current protection MOSFET
  • Operating junction temperature -40 °C to 125 °C
  • HTSSOP14 package

 

Applications

  • Hot board insertion
  • Electronic circuit breaker/power busing
  • Industrial/alarm/lighting systems
  • Distributed power systems
  • Telecom power modules

STMicroelectronics STEF01 electronic fuse | EBV Elektronik

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