Product Information Summary for BTS442E2 BKSA1

General Description

The BTS442E2 is a smart high-side power switch designed for automotive and industrial applications. It features overload protection, current limitation, short-circuit protection, thermal shutdown, overvoltage protection, and fast demagnetization of inductive loads. The device is suitable for replacing electromechanical relays and discrete circuits.

Key Features

• Overload protection
• Current limitation
• Short-circuit protection
• Thermal shutdown
• Overvoltage protection (including load dump)
• Fast demagnetization of inductive loads
• Reverse battery protection
• Undervoltage and overvoltage shutdown with auto-restart and hysteresis
• Open drain diagnostic output
• Open load detection in ON-state
• CMOS compatible input
• Loss of ground and loss of Vbb protection
• Electrostatic discharge (ESD) protection
• Green Product (RoHS compliant)

Electrical Specifications

• Overvoltage Protection (Vbb(AZ)): 63 V
• Operating Voltage (Vbb(on)): 4.5 ... 42 V
• On-state Resistance (RON): 18 mΩ
• Load Current (ISO): 21 A
• Current Limitation (IL(SCr)): 70 A
• Package: TO-220AB/5

Maximum Ratings (Tj = 25 °C unless otherwise specified)

• Supply Voltage (Vbb): 63 V
• Load Dump Protection (VLoadDump): 80 V
• Operating Temperature Range (Tj): -40 ... +150 °C
• Storage Temperature Range (Tstg): -55 ... +150 °C
• Power Dissipation (Ptot): 167 W (DC)
• Inductive Load Switch-off Energy Dissipation (EAS): 2.1 J (Tj=150 °C)
• Electrostatic Discharge Capability (ESD): 2.0 kV (Human Body Model)
• Input Voltage (VIN): -0.5 ... +6 V
• Current through Input Pin (IIN): ±5.0 mA
• Current through Status Pin (IST): ±5.0 mA

Pin Configuration

• Pin 1 (GND): Logic ground
• Pin 2 (IN): Input, activates the power switch in case of logical high signal
• Pin 3 (Vbb): Positive power supply voltage, the tab is shorted to this pin
• Pin 4 (ST): Diagnostic feedback, low on failure
• Pin 5 (OUT): Output to the load

Applications

• Microcontroller Compatible Power Switch: Suitable for 12 V and 24 V DC grounded loads
• All Types of Resistive, Inductive, and Capacitive Loads
• Replaces Electromechanical Relays and Discrete Circuits

Ordering Information

• Package Type: TO-220AB/5
• Ordering Code: BTS442E2 BKSA1

Notes

• The device is designed for automotive and industrial applications where robustness and reliability are critical.
• For detailed technical specifications and application notes, refer to the complete datasheet provided by Infineon Technologies AG.