ZXMS81045SP

Description

The ZXMS81045SPQ is a single-channel, high-side, power switch in a SO-8EP (Type E) exposed heatsink package incorporating protective and diagnostic functions. The device comprises a monolithic N-channel vertical power MOSFET with integrated temperature and current sensors with a charge-pumped gate supply and has a low quiescent current in OFF state. The device is enabled by active high 3.3 V and 5 V logic level drive to the inputs. The device includes a diagnostic current-sense output proportional to load current and a defined diagnostic fault signal in case of overload operation, overtemperature, short-circuit or open load conditions.

Feature(s)

• Protection Functions
  
  • Reverse battery protection using external components
  • Voltage dependent current limiting
  • Overtemperature protection with auto-restart
  • Overvoltage protection including load dump
  • Stable undervoltage protection
  • ESD protection
  • Loss of ground protection with external components
  • Enhanced short circuit protection
• Diagnostic Functions
  
  • Proportional load current-sense output
    
    • Linear voltage drop regulation to maintain sense
      accuracy even at very low load currents
    • Enabled by logic input
    • Defined temperature and current dependency
  • Open-load detection
    
    • Using load current-sense in ON state
    • Using output voltage detection in OFF state
  • Defined fault signal in case of overload operation,
    overtemperature, or short-circuit
• Miscellaneous
  
  • Lead-Free Finish; RoHS Compliant 
  • Halogen and Antimony Free. “Green” Device 
  • The ZXMS81045SPQ is suitable for automotive applications
    requiring specific change control; this part is AEC-Q101
    qualified, PPAP capable, and manufactured in IATF16949
    certified facilities.
    https://www.diodes.com/quality/product-definitions/

Application(s)

• High-side switching with diagnostic feedback for:
  
  • 12V grounded loads
  • Resistive, inductive, and capacitive loads
• Suitable for high inrush current loads
  
  • Incandescent lamps (P27W/P21W), motors, etc
• Compact low-power replacement for:
  
  • Relays, fuses, and discrete 

IntelliFET® is a registered trademark of Diodes Incorporated.