Infineon BTF3050EJ

The BTF3050EJ is a 50 mΩ single channel Smart Low-Side Power Switch with in a PG-TDSO-8-31 package providing embedded protective functions. The power transistor is built by an N-channel vertical power MOSFET. The device is monolithically integrated. The BTF3050EJ is automotive qualified and is optimized for 12V automotive and industrial applications. The device is able to switch all kind of resistive, inductive and capacitive loads, limited by maximum clamping energy and maximum current capabilities. The BTF3050EJ offers dedicated ESD protection on the IN, VDD, ENABLE, STATUS and SRP pin which refers to the GND ground pin, as well as an over voltage clamping of the OUT to Source/GND. The over voltage protection gets activated during inductive turn off conditions or other over voltage events (like load dump). The power MOSFET is limiting the drain-source voltage, if it rises above the VOUT(CLAMP). The over temperature protection prevents the device from overheating due to overload and/or bad cooling conditions. The BTF3050EJ has an auto-restart thermal shutdown function. The device will turn on again, if input is still high, after the measured temperature has dropped below the thermal hysteresis.

• Single channel device
• 3.3V and 5V compatible logic input
• PWM switching capability 20kHz for 10–90% duty cycle
• Electrostatic discharge protection (ESD)
• Adjustable switching speed
• Digital latch feedback signal
• Very low power DMOS leakage current in OFF state
• DMOS turn on capability in inverse current situation
• Green Product (RoHS compliant)

• Suitable for resistive, inductive and capacitive loads
• Replaces electromechanical relays, fuses and discrete circuits
• Allows high inrush currents and active freewheeling