NCV8402ASTT1G

Product Overview

Category: Integrated Circuit (IC)

Use: The NCV8402ASTT1G is a high-side power switch designed for automotive applications. It is commonly used to control various loads in automotive systems, such as lamps, motors, and solenoids.

Characteristics: - High-side switch - Automotive-grade quality - Low on-resistance - Overcurrent protection - Thermal shutdown protection - ESD protection

Package: The NCV8402ASTT1G is available in a small surface-mount package, specifically the SOT-223 package. This package provides excellent thermal performance and allows for easy integration into circuit boards.

Essence: The essence of the NCV8402ASTT1G lies in its ability to provide reliable and efficient control of loads in automotive systems. Its high-side switch configuration ensures that it can handle high currents while offering protection features to prevent damage to the system.

Packaging/Quantity: The NCV8402ASTT1G is typically sold in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 4.5V to 28V
• On-Resistance: 40mΩ (typical)
• Continuous Current: 3A
• Overcurrent Protection Threshold: Adjustable
• Thermal Shutdown Temperature: 150°C (typical)
• ESD Protection: ±8kV (Human Body Model)

Pin Configuration

The NCV8402ASTT1G has a total of five pins:

1. IN - Input pin for controlling the switch
2. GND - Ground reference pin
3. EN - Enable pin for turning the switch on/off
4. OUT - Output pin connected to the load
5. VBAT - Supply voltage input pin

Functional Features

• High-side switch configuration allows for easy integration into automotive systems.
• Adjustable overcurrent protection threshold ensures safe operation under different load conditions.
• Thermal shutdown protection prevents overheating and damage to the IC.
• ESD protection safeguards against electrostatic discharge events.

Advantages and Disadvantages

Advantages: - Automotive-grade quality ensures reliability in harsh environments. - Low on-resistance minimizes power losses and improves efficiency. - Overcurrent and thermal shutdown protection enhance system safety. - ESD protection prevents damage from electrostatic discharge events.

Disadvantages: - Limited continuous current rating of 3A may not be suitable for high-power applications. - SOT-223 package may require additional thermal management measures in certain cases.

Working Principles

The NCV8402ASTT1G operates as a high-side switch by controlling the flow of current between the supply voltage (VBAT) and the load (OUT). When the enable pin (EN) is activated, the switch turns on, allowing current to flow from VBAT to OUT. Conversely, when the enable pin is deactivated, the switch turns off, interrupting the current path.

The overcurrent protection feature monitors the current flowing through the switch. If the current exceeds a predefined threshold, the switch automatically shuts off to protect the system from damage. Similarly, the thermal shutdown protection activates when the temperature of the IC reaches a critical level, preventing overheating.

Detailed Application Field Plans

The NCV8402ASTT1G is widely used in various automotive applications, including:

1. Automotive lighting systems: It can control the operation of lamps, such as headlights, taillights, and interior lights.
2. Motor control: It is suitable for controlling motors in applications like power windows, windshield wipers, and HVAC systems.
3. Solenoid control: It can be used to drive solenoids in applications such as door locks, fuel injectors, and transmission systems.

Detailed and Complete Alternative Models

1. NCV8401ASTT1G: Similar to the NCV8402ASTT1G but with a lower continuous current rating of 1.5A.
2. NCV8403ASTT1G: Similar to the NCV8402ASTT1G but with a higher continuous current rating of 5A.

These alternative models provide options for different load requirements and can be considered based on specific application needs.

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