Product Brief BTF3050TE Smart Low-Side Power Switch, Single Channel 50mΩ The BTF3050TE is a 50mΩ single channel Smart Low-Side Power Switch in a PG-TO252-5 package providing embedded protective functions. The power transistor is built by a N-channel vertical power MOSFET. The device is monolithically integrated. The BTF3050TE is automotive qualified and is optimized for 12V automotive and industrial applications. Basic Functions Adjustable switching speed 3.3V and 5V compatible logic inputs Very low power DMOS leakage current in OFF state Applications Suitable for resistive, inductive and capacitive loads Replaces electromechanical relays, fuses and discrete circuits Most suitable for inductive loads as well as loads with inrush currents Protection Functions Overtemperature shutdown with auto-restart Active clamp overvoltage protection Block Diagram of the output Current limitation VDD OUT Supply Unit IN Status Feedback Overvoltage Protection ESD Protection Overtemperature Protection Gate Driving Unit Slew Rate Adjustment Unit SRP Diagnostic Functions Short circuit to battery Short Circuit Detection / Current Limitation Overtemperature Stable latching diagnostic signal GND www.infineon.com Enhanced short circuit protection Product Brief BTF3050TE Smart Low-Side Power Switch, Single Channel 50mΩ Application Diagram VBAT Voltage Regulator IN Load OUT Optional: e.g. 100nF VDD RX I/O PWM Microcontroller I/O Status/ Reset VDD RµC-SRP SRP < 470Ω 1) GND OUT IN GND RSRP 1) Consider design recommendations for parasitic CSRP-GND The device is able to switch all kind of resistive, inductive and capacitive loads, limited by clamping energy (EAS) and maximum current capabilities. The BTF3050TE offers dedicated ESD protection on the IN, VDD and SRP pins which refers to the Ground pin as well as an overvoltage clamping of the output to Source/GND. The overvoltage protection gets activated during inductive turn off conditions or other voltage events (e.g. load dump). The power MOSFET is limiting the drain-source voltage, if it rises above the VOUT(CLAMP). The overtemperature protection prevents the device from overheating due to overload and/or bad cooling conditions. The BTF3050TE has a thermal-restart function. The device will turn on again, if input is still high, after the measured temperature has dropped below the thermal hysteresis. Product Summary Parameter Symbol Sales code BTF3050TE Contact Infineon sales Package PG-TO252-5 Clamping voltage (source-drain) VOUT(CLAMP) 40V Supply voltage VDD 3 … 5.5V Maximum input voltage VIN 5.5V Maximum ON-state resistance (T = 150°C, VDD = 5V) RDS(on) 100mΩ Nominal load current ID(nom) 3A Minimum current limitation trigger level IL(lim)_TRIGGER 30A Maximum OFF-state load current at Tj ≤ 85°C IL(OFF) 2µA Maximum stand-by supply current at Tj = 25°C IDD(OFF) 6µA Published by Infineon Technologies AG 85579 Neubiberg, Germany © 2014 Infineon Technologies AG. All Rights Reserved. Visit us: www.infineon.com Order Number: B127-I0021-V1-7600-EU-EC-P Date: 09 / 2014 Attention please! The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”). With respect to any examples or hints given herein, any typical values stated herein and/ or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.