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AP91352 Resettable Fuse Integrated IsoFet

Diodes' AP91352 is a self-protected resettable electronic fuse designed for consumer applications such as hard-disk drives and industrial applications to enhance system reliability against catastrophic and shutdown failures.


Diodes' AP91352 is a self-protected resettable electronic fuse designed for consumer applications such as hard-disk drives and industrial applications to enhance system reliability against catastrophic and shutdown failures. The eFuse is a 5 V protection device with a bidirectional switch that incorporates input slew-rate-control to reduce input surge current and reverse current detection to prevent discharge from VCC to VOUT.  To support a wide range of demanding applications, the design has been optimized to operate over the supply range of 3.6 V to 12 V. For robustness and protection, the device integrates a low RDS(ON) NMOS buffer power device along with under-voltage lockout, overvoltage clamp, current limit, and thermal shutdown circuits.

Features
  • Protection
    • Over-current
    • Overvoltage
    • Current limit
    • Thermal shutdown
    • Reverse current protection
    • Improves robustness of circuit and prevents premature failure
  • Integrated NMOS power device with RDS(ON) of 50 mΩ typical
    • Decreases voltage drop and power losses
  • Standard QFN3020-12 thermal enhanced package
    • User-friendly pitch: 0.5 mm
    • High-spacing efficiency
    • Excellent power dissipation
Applications
  • HDD SSD
  • Printers
  • Motherboards
  • Network systems

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