STMicroelectronics STEF12E
The STEF12E 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 STEF12E limits the output current to a predefined safe value.| Part No. | STEF12E |
|---|---|
| Datasheet | STEF12E Download |
| Manufacturer |  STMicroelectronics |
| Description | Electronic fuse |
| Buy | Stock & Price |
FEATURES
● Continuous current typ. 3.6 A● N-channel on-resistance typ. 45 mΩ
● Enable/fault functions
● Output clamp voltage typ. 15 V
● Undervoltage lockout
● Short-circuit limit
● Overload current limit
● Controlled output voltage ramp
● Thermal latch typ. 165 °C
● Uses tiny capacitors
● Operating junction temp. -40 °C to 125 °C
● Available in DFN10 (3x3 mm) package
● UL2367 Recognized - File N. E468771
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 12 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.
