The STEF05D is an integrated electronic fuse optimized for monitoring output current and input voltage. Connected in series to a 5 V rail, it is capable of protecting the electronic circuitry on its output from overcurrent and overvoltage. The device has a controlled delay and turn-on time. When an overload condition occurs, the STEF05D limits the output current to a predefined safe value. If the anomalous overload condition. persists, it goes into an open state, disconnecting the load from the power supply. If a continuous short-circuit is present on the board, when power is re-applied the E-fuse initially limits the output current to a safe value, and then again goes into an open state.
The device is equipped with a thermal protection circuit. The intervention of the thermal protection is signal led to the board monitoring circuits through a signal on the Fault pin.
Unlike mechanical fuses, which must be physically replaced after a single event, the E-fuse does not degrade in its performance after short-circuit/thermal protection interventions and it is reset either by recycling the supply voltage or using the Enable pin.
The companion chip for 12 V power rails is also available with part number STEF12.
Key Features
Description | Version | Size |
---|---|---|
DS9551: Electronic fuse for 5 V line | 1.0 | 1 MB |
Description | Version | Size |
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Linear and Switching Voltage Regulators Selection Guide | 383 KB |
型号 | Package | Packing Type | Unit Price (US$) * | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
---|---|---|---|---|---|---|---|
STEF05DPUR | VDFPN 10 3x3x1.0 | Tape And Reel | 0.596 | 1000 | NEC | EAR99 | CHINA |
型号 | Package | Grade | RoHS Compliance Grade | Material Declaration** |
---|---|---|---|---|
STEF05DPUR | VDFPN 10 3x3x1.0 | Industrial | Ecopack2 | md_wq-wspc-vdfpn-wspc-3x3x1.0-wspc-10-wspc-pitch-wspc-0.50_rqwquw70ab6-wspc-(stef05dpurxyr)_a_ver2_signed.pdf md_wq-wspc-vdfpn-wspc-3x3x1.0-wspc-10-wspc-pitch-wspc-0.50_rqwquw70ab6-wspc-(stef05dpurxyr)_a_ver2.xml |