STMicroelectronics STEF01 Universal Electronic Fuse
STMicroelectronics STEF01 Universal Electronic Fuse is optimized for monitoring output current and the input voltage on DC power lines. The STEF01 is able to detect and react to overcurrent and overvoltage conditions when connected in series to the main power rail. When an overload condition occurs, the device limits the output current to a user-defined safe value. If the anomalous overload condition persists, the device goes into an open state, disconnecting the load from the power supply.
Features
- Operating input voltage range 8V to 48V
- Absolute maximum input voltage 55V
- Continuous current typ. 4A
- N-channel on-resistance typ. 30mΩ
- Enable/fault functions
- Output clamp voltage adjustable from 10V to 52V
- 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
Applications
- Hot board insertion
- Electronic circuit breaker/power busing
- Industrial/alarm/lighting systems
- Distributed power systems
- Telecom power modules
Related Content
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Demonstration platform designed to enable evaluation of the STEF01 Universal E-fuse.
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Block Diagram
Published: 2018-02-08
| Updated: 2023-01-31