The eFuse SY20817A is a highly integrated circuit protection and power management solution in a compact package. The device uses few external components and provides multiple protection modes. It is a robust defense against overload, short circuit, and excessive inrush current conditions.
Extremely low power path resistance RDS(ON) helps to reduce power loss during normal operation. An open drain indicator pin is provided to show the operation status of the device. The device integrates overtemperature protection and auto-recovery with hysteresis to protect against overcurrent events.
The current limit level can be easily configured using a single external resistor. For applications with specific voltage ramp requirements, the SST pin can be set with a single capacitor to ensure the desired output ramp rate. Additionally, to prevent current flow from the load to the source during shutdown, an external NFET can be connected in back-to-back (B2B) configuration with the SY20817A output and controlled by the BFET pin.
The SY20817A is available in a compact QFN 2mm×2mm-12pin package.
