BUK128-50DL is a logic level TOPFET from Philips Semiconductors. The device is packaged in a TO-263-5 package and has a 5V logic compatible input level. It can be used to drive lamps, motors, relays, heaters and other electrical devices.
This document is a product specification datasheet for the Philips BUK128-50DL, a monolithic temperature and overload protected logic level power MOSFET. The device utilizes TOPFET2 technology and is assembled in a 3-pin surface mount plastic package (SOT404). It is designed as a general-purpose switch for driving lamps, motors, solenoids, and heaters in automotive systems and other applications.
The BUK128-50DL features a trench MOS output stage with current limiting, overload protection, and overtemperature protection. The protection circuits are latched by the input and include overvoltage clamping for the turn-off of inductive loads. The device is compatible with 5V logic inputs and allows for direct drive by microcontrollers due to low operating input current.
The maximum continuous drain current is 8 A when the junction temperature is 25 °C.
The maximum total power dissipation is 40 W at a case temperature of 25 °C.
The maximum continuous junction temperature is 150 °C during normal operation.