STEF033APUR

STEF033APUR is a electronic fuse for 3.3V line. It is an integrated electronic fuse optimized for monitoring output current and the input voltage. This electronic fuse has controlled delay and turn-on time. When an overload condition occurs this fuse 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 the power is re-applied to the eFuse initially and limits the output current to a safe value and then goes again into the open state. The voltage clamping circuit prevents the output voltage from exceeding a fixed value, if the input voltage goes beyond this threshold. The fuse is equipped with a thermal protection circuit. This fuse is commonly use in hard disk drives, solid state drives (SSD), hard disk and SSD arrays, computer, DVD and Blu-Ray disc drivers etc.

• Enable/fault functions, continuous current is 3.6A
• Output clamp voltage is 4.5V
• N-channel on resistance is 40mohm, undervoltage lockout
• Short-circuit limit
• Overload current limit
• Controlled output voltage ramp
• Thermal latch is 160°C
• Latching and auto-retry versions
• Operative junction temperature is - 40°C to 125°C
• Case style is DFN