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.
- 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
- Thermal latch typ: 165 °C
- Uses tiny capacitors
- Operating junction temp. - 40 °C to 125 °C
- Available in DFN10 (3 x 3 mm).
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。
|产品型号||从分销商订购||从ST订购||封装||包装类型||供货状态||ECCN (US)||Country of Origin||Budgetary Price (US$)*/Qty|
|STEF05DPUR||2 distributors||获取样片||DFN10 3X3||Tape And Reel|| |
|EAR99||CHINA||0.596 / 1k|
包装类型Tape And Reel
Budgetary Price (US$)* / Qty
0.596 / 1k
Country of Origin