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Vishay — SIPQ32433 Single-Channel eFuses

Vishay

 

Vishay SIPQ32433 Series eFuse

Featuring Programmable Current Limit and OVP

The SIPQ32433A and SIPQ32433B by Vishay are single-channel eFuses that integrate multiple control and protection features. They protect both power sources and downstream circuitry connected to the switch from overloads, short circuits, voltage surges, and excessive inrush currents.

The output current limit can be set by a single external resistor. VIN overvoltage protection and undervoltage lockout threshold levels can be set with an external resistor network. VIN inrush current requirements can be set with a single external soft start capacitor.

Upon switch-off due to latchable faults, the SIPQ32433A will latch the power switch off and the PGD will remain low. The switch can restart by resetting the EN or VIN. The SIPQ32433B will auto retry if there is no OTP or OVP fault. The retry delay time is 32 times the soft start time set by the CSS.

The switch is characterized for operation over a junction temperature range of -40 °C to +125 °C.

Features

  • Qualified for automotive applications
  • AEC-Q100 qualified:
    • Device temperature grade 1
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B method 2
  • 2.8 V to 22 V operation voltage
  • 28 V max. voltage rating with 24 V internal OVP
  • 78 mΩ typical switch resistance
  • 0.3 A to 4.5 A current limit setting range
  • Current limit accuracy of ± 8 %
  • Fast short circuit protection response
  • OCP triggering without overhead current
  • Programmable turn-on slew rate
  • Turn-on delay: 190 μs
  • Adjustable OVP (and fixed 24 V OVP at VIN)
  • Adjustable UVLO
  • Over-temperature protection
  • PGD: power good indicator output
  • IEC 62368-1 2018, 2020/A11 certified, E531343-A6001-CB-1
  • Compact TDFN10 3 mm x 3 mm package (for AEC-Q100 qualified automotive applications

Applications

  • Automotive infotainment
  • ADAS and auto-pilot
  • Cameras and sensors
  • USB hubs
  • Holdup power switching
  • Power muxing

 

Typical Application Circuit