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Automotive Relay Driver with Integrated 5V Regulator, Watchdog, and Reset

A2550

LP TSSOP 16 pin

The A2550 simplifies automotive relay control systems by integrating a 5V regulator, watchdog timer, power-on reset, and three low-side DMOS drivers with load-dump protection. This single-chip solution reduces component count and enhances system reliability.

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Top Features

Packaging

  • Three independent low-side DMOS output drivers 
  • Short-circuit protection of drivers 
  • Eliminates need for flyback diodes on relays 
  • Thermal shutdown 
  • Separate precision 5 V regulator (2%) 
  • Current clamp on 5 V regulator 
  • 16-pin TSSOP package with exposed thermal pad 
  • Programmable reset (NPOR) delay time 
  • Programmable watchdog 
  • Automotive voltage and temperature ranges 
  • Active clamps for automotive load dump specifications 
  • Lead (Pb) free 

16-Pin TSSOP with exposed thermal pad (suffix LP) 

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