BTS50121EKBXUMA1

Product Overview

• Category: Power Transistors
• Use: High-side power switch for automotive applications
• Characteristics:
  • Robust and reliable design
  • High current handling capability
  • Low on-resistance
  • Overtemperature protection
  • Short-circuit protection
• Package: TO-263-7 (D2PAK)
• Essence: This product is a high-side power switch designed specifically for automotive applications, providing efficient and reliable control of high currents.
• Packaging/Quantity: The BTS50121EKBXUMA1 is available in a standard TO-263-7 package. Each package contains one power transistor.

Specifications

• Voltage Rating: 12V
• Current Rating: 30A
• On-Resistance: 8mΩ
• Operating Temperature Range: -40°C to +150°C
• Supply Voltage Range: 6V to 18V
• Standby Current: <10µA
• Short-Circuit Current Limit: 100A

Detailed Pin Configuration

The BTS50121EKBXUMA1 has the following pin configuration:

1. IN - Input control signal
2. GND - Ground
3. OUT - Output to load
4. Vbb - Positive supply voltage
5. Vcc - Logic supply voltage
6. NC - No connection
7. PGND - Power ground

Functional Features

• High-side power switch with integrated protection features
• Overtemperature protection shuts down the device if the temperature exceeds the specified limit
• Short-circuit protection prevents excessive current flow during a short circuit event
• Fast switching capability for efficient power control
• Low standby current consumption for energy efficiency

Advantages and Disadvantages

Advantages: - Robust and reliable design suitable for automotive applications - High current handling capability allows for control of heavy loads - Low on-resistance minimizes power losses - Integrated protection features enhance system safety

Disadvantages: - Limited voltage rating of 12V may not be suitable for certain applications requiring higher voltages - The package size (TO-263-7) may not be compatible with all circuit board layouts

Working Principles

The BTS50121EKBXUMA1 is a high-side power switch that operates by controlling the flow of current from the positive supply voltage (Vbb) to the load connected to the output pin (OUT). The input control signal (IN) determines whether the switch is turned on or off. When the control signal is high, the switch is closed, allowing current to flow through the load. Conversely, when the control signal is low, the switch is open, interrupting the current path.

The device incorporates overtemperature and short-circuit protection mechanisms. If the temperature exceeds the specified limit, the overtemperature protection shuts down the switch to prevent damage. In case of a short circuit, the short-circuit protection limits the current to protect the switch and the load.

Detailed Application Field Plans

The BTS50121EKBXUMA1 is primarily designed for use in automotive applications, where it finds various applications such as:

1. Automotive lighting systems
2. Electric power steering systems
3. Engine control units
4. Transmission control units
5. Battery management systems
6. HVAC (Heating, Ventilation, and Air Conditioning) systems

Detailed and Complete Alternative Models

1. BTS50120EKBXUMA1 - Similar specifications, but with a lower current rating of 20A.
2. BTS50122EKBXUMA1 - Similar specifications, but with a higher current rating of 40A.
3. BTS50123EKBXUMA1 - Similar specifications, but with a higher voltage rating of 24V.

These alternative models provide flexibility in selecting the appropriate power switch based on specific application requirements.

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