Description
The CA3273 is a power IC equivalent of a P-N-P pass transistor operated as a high-side-driver current switch in either the saturated (ON) or cutoff (OFF) modes. The CA3273 incorporates circuitry to protect the pass currents, excessive input voltage, and thermal overstress. The high-side driver is intended for general purpose, automotive and potentially high-stress applications.

Features
• Equivalent High Pass P-N-P Transistor
• Current Limiting. . . . . . . . . . . . . . . . . . . . . .0.6A to 1.2A
• Over-Voltage Shutdown . . . . . . . . . . . . . . +25V to +40V
• Junction Temperature Thermal Limit. . . . . . . . .+150°C
• Equivalent Beta of 25. . . . . . . . . . . . . . . . . . 400mA/0.5V
• Internal Bandgap Voltage and Current Reference

Applications
• Fuel Pump Driver
• Relay Driver
• Solenoid Driver
• Stepper Motor Driver
• Remote Power Switch
• Logic Control Switch