STMicroelectronics STEF05
The STEF05 is an integrated electronic fuse optimized for monitoring output current and input voltage. The device has a controlled delay and turn-on time. When an overload condition occurs, the STEF05 limits the output current to a predefined safe value.| Part No. | STEF05 |
|---|---|
| Datasheet | STEF05 Download |
| Manufacturer |  STMicroelectronics |
| Description | Electronic fuse |
| Buy | Stock & Price |
FEATURES
● Continuous current (typ): 3.6 A● N-channel on-resistance (typ): 40 mΩ
● Enable/Fault functions
● Output clamp voltage (typ): 6.65 V
● Undervoltage lockout
● Short-circuit limit
● Overload current limit
● Controlled output voltage ramp DFN10 (3x3 mm)
● Thermal latch (typ): 165 °C
● Uses tiny capacitors
● Operating junction temp. - 40 °C to 125 °C
● Available in DFN10 (3x3 mm) package
APPLICATIONS
● Hard disk drives● Solid state drives (SSD)
● Hard disk and SSD arrays
● Set-top boxes
● DVD and Blu-ray disc drivers
DESCRIPTION
Connected in series to a 5 V rail, it is capable of protecting the electronic circuitry on its output from overcurrent and overvoltage. 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.
