PROFET+ 12V BTS5020-2EKA Smart High-Side Power Switch Dual Channel, 20m Data Sheet Rev. 2.1, 2011-09-01 Automotive Power BTS5020-2EKA Table of Contents Table of Contents 1 Overview . 4 2 Block Diagram . 6 3 Pin Configuration 7 3.1 Pin Assignment . 7 3.2 Pin Definitions and Functions 7 3.3 Voltage and Current Definition . 8 4 General Product Characteristics 9 4.1 Absolute Maximum Ratings . 9 4.2 Functional Range 11 4.3 Thermal Resistance 12 4.3.1 PCB set up 12 4.3.2 Thermal Impedance . 13 5Power Stage . 15 5.1 Output ON-state Resistance 15 5.2 Turn ON/OFF Characteristics with Resistive Load . 15 5.3 Inductive Load 16 5.3.1 Output Clamping . 16 5.3.2 Maximum Load Inductance . 17 5.4 Inverse Current Capability . 17 5.5 Electrical Characteristics Power Stage 19 6 Protection Functions 21 6.1 Loss of Ground Protection . 21 6.2 Undervoltage Protection . 21 6.3 Overvoltage Protection 22 6.4 Reverse Polarity Protection 23 6.5 Overload Protection 23 6.5.1 Current Limitation 23 6.5.2 Temperature Limitation in the Power DMOS 24 6.5.3 Short Circuit Appearance with Channel in Parallel . 25 6.6 Electrical Characteristics for the Protection Functions 26 7 Diagnostic Functions 27 7.1 IS Pin . 27 7.2 SENSE Signal in Different Operating Modes . 28 7.3 SENSE Signal in the Nominal Current Range 29 7.3.1 SENSE Signal Variation as a Function of Temperature and Load Current . 29 7.3.2 SENSE Signal Timing . 30 7.3.3 SENSE Signal in Open Load 31 7.3.3.1 Open Load in ON Diagnostic 31 7.3.3.2 Open Load in OFF Diagnostic . 31 7.3.3.3 Open Load Diagnostic Timing . 32 7.3.4 SENSE Signal with OUT in Short Circuit to V 33 S 7.3.5 SENSE Signal in Case of Overload . 33 7.3.6 SENSE Signal in Case of Inverse Current 33 7.4 Electrical Characteristics Diagnostic Function 34 8 Input Pins . 37 8.1 Input Circuitry . 37 Data Sheet 2 Rev. 2.1, 2011-09-01 PROFET+ 12V