SA21803AHTP

• AEC-Q100/ Q104 Qualified for Automotive Applications
• One Channel Device
• Very Low Shutdown Current
• 3.3V and 5V Compatible Logic Inputs
• Logic Ground Independent from Load Ground
• Very Low Power DMOS Leakage Current in OFF State
• Diagnostic Functions

           Proportional Load Current Sense

           Open Load in OFF State

           Short Circuit to Battery and Ground

           Over Temperature

           Stable Diagnostic Signal During Short Circuit

           Enhanced kILIS Dependency withTemperature and Load Current

• Protection Functions 

           Stable Behavior during Under Voltage

           Reverse Polarity Protection with External Components

           Secure Load Turn-off during Logic Ground Disconnect with External Components

           Over Temperature Protection with Latch

           Overvoltage Protection with External Components

           Voltage Dependent Current Limitation

           Enhanced Short Circuit Operation

The SA21803A is a 50mΩ smart high-side power switch with single channel, mainly providing overload protection and signal diagnostics. The power switch is an N-channel vertical power MOSFET with charge pump.

The package type of SA21803A is TSOP14E with exposed pads. The main purpose of SA21803A is to drive lamps up to P21W 24V and LEDs in the tough automotive environment.