BTS443PNT

Product Overview

• Category: Power Transistor
• Use: High-side power switch for automotive applications
• Characteristics:
  • High current handling capability
  • Low on-resistance
  • Overtemperature protection
  • Short-circuit protection
• Package: TO-263-7 (D2PAK)
• Essence: BTS443PNT is a high-performance power transistor designed for automotive applications, providing efficient and reliable high-side switching.
• Packaging/Quantity: Available in tape and reel packaging with 250 units per reel.

Specifications

• Voltage Rating: 12V to 40V
• Current Rating: 30A
• On-Resistance: 8.5mΩ
• Operating Temperature Range: -40°C to +150°C
• Supply Voltage Range: 6V to 40V
• Standby Current: <1µA
• Output Current Limitation: Adjustable
• Short-Circuit Current Limitation: 60A

Detailed Pin Configuration

The BTS443PNT has the following pin configuration:

1. IN - Input control pin
2. GND - Ground pin
3. OUT - Output pin
4. Vbb - Positive supply voltage pin
5. DIAG - Diagnostic output pin
6. SENSE - Sense input pin
7. NC - Not connected pin

Functional Features

• High-side power switch with integrated protection features
• Overtemperature protection shuts down the device when the temperature exceeds a certain threshold
• Short-circuit protection limits the current during a short circuit event
• Adjustable output current limitation for customized applications
• Low standby current consumption for energy efficiency

Advantages and Disadvantages

Advantages: - High current handling capability allows for robust performance in automotive applications - Low on-resistance minimizes power losses and improves efficiency - Integrated protection features enhance system reliability and safety - Adjustable output current limitation provides flexibility for various load requirements

Disadvantages: - Limited voltage rating of up to 40V may not be suitable for certain high-voltage applications - Package size (TO-263-7) may require additional space on the PCB compared to smaller packages

Working Principles

The BTS443PNT is designed as a high-side power switch, which means it can control the flow of current from the positive supply voltage to the load. It utilizes MOSFET technology to achieve low on-resistance and high current handling capability. The device is controlled through the input control pin (IN), and the output pin (OUT) connects to the load. The integrated protection features, such as overtemperature and short-circuit protection, ensure safe operation under various conditions.

Detailed Application Field Plans

The BTS443PNT is primarily used in automotive applications, including:

1. Automotive lighting systems
2. Electric power steering
3. Heating, ventilation, and air conditioning (HVAC) systems
4. Engine management systems
5. Battery management systems

Its high current handling capability and robust protection features make it suitable for demanding automotive environments.

Detailed and Complete Alternative Models

1. BTS442E2 - Similar high-side power switch with lower current rating (20A)
2. BTS4440G - High-side power switch with higher current rating (40A)
3. BTS432E2 - High-side power switch with similar current rating (30A) but different package (TO-220AB)

These alternative models offer different specifications and package options to cater to specific application requirements.

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