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  4. Diodes Incorporated — AP74502Q & AP74502HQ Protection Controllers

Diodes Incorporated — AP74502Q & AP74502HQ Protection Controllers

Diodes Incorporated

 

Diodes Incorporated AP74502Q & AP74502HQ Protection Controllers

Reverse battery and overvoltage protection for automotive power systems

The Diodes Incorporated AP74502Q and AP74502HQ controllers provide robust reverse battery polarity and overvoltage protection for 12 V, 24 V, and 48 V automotive systems. Designed to drive external back-to-back MOSFETs, they deliver efficient protection while maintaining extremely low quiescent current.

Supporting input voltages up to 80 V and reverse battery conditions down to -80 V, these controllers help safeguard sensitive electronics against electrical faults and transient events. Their low power consumption and automotive qualification make them ideal for modern vehicle architectures as well as industrial power applications.

Features

  • Input voltage range from 3.2 V to 80 V
  • Reverse battery protection to -80 V
  • Charge pump gate drive
  • Supports external back-to-back MOSFETs
  • Low shutdown current
  • Low quiescent current
  • High gate turn-off current
  • AEC-Q100 qualified
  • ESD protection
  • Compact SOT28 package

Applications

  • Automotive body control units
  • Infotainment systems
  • Telematics control units
  • ADAS camera systems
  • Industrial PLC systems
  • Enterprise power supplies

 


Diodes Incorporated AP74502Q & AP74502HQ Protection Controllers