TC4469EJD

Product Overview

• Category: Integrated Circuit (IC)
• Use: Driver for MOSFETs and IGBTs
• Characteristics: High voltage, high current, low power consumption
• Package: DIP-8 (Dual In-line Package with 8 pins)
• Essence: Power driver IC
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage: 4.5V to 18V
• Output Current: 1.2A (peak), 0.6A (continuous)
• Input Threshold Voltage: 2.3V (typical)
• Propagation Delay Time: 55ns (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TC4469EJD has a total of 8 pins arranged as follows:

___________ | | 1 | 2 3 4 | 8 |___________| | | | | | | | | 7 | 6 5 | |_________|

1. VDD: Supply voltage input
2. IN1: Input control signal 1
3. IN2: Input control signal 2
4. GND: Ground reference
5. OUT1: Output 1
6. OUT2: Output 2
7. NC: No connection
8. VBB: Bootstrap supply voltage input

Functional Features

• Provides high-speed switching capability for driving MOSFETs and IGBTs
• Offers independent control of two outputs for half-bridge or full-bridge configurations
• Built-in shoot-through protection to prevent simultaneous conduction of both outputs
• Low power consumption and high efficiency
• Wide operating voltage range for versatile applications

Advantages and Disadvantages

Advantages

• High voltage and current handling capability
• Fast switching speed
• Independent control of outputs allows flexible circuit design
• Shoot-through protection enhances system reliability
• Suitable for a wide range of applications

Disadvantages

• Limited output current compared to some other driver ICs
• Requires external bootstrap capacitor for proper operation
• Not suitable for low voltage applications

Working Principles

The TC4469EJD is designed to drive MOSFETs and IGBTs in various applications. It operates by receiving input control signals (IN1 and IN2) and generating corresponding output signals (OUT1 and OUT2) to drive the connected power devices. The inputs control the timing and duration of the output signals, allowing precise control over the switching behavior of the MOSFETs or IGBTs.

The IC incorporates internal circuitry to prevent shoot-through, which occurs when both outputs are simultaneously conducting, leading to short circuits and potential damage to the power devices. This feature ensures safe and reliable operation.

Detailed Application Field Plans

The TC4469EJD is widely used in applications that require high-speed switching of power devices, such as:

1. Motor control systems: Enables efficient control of motor speed and direction in robotics, industrial automation, and electric vehicles.
2. Switching power supplies: Facilitates fast and accurate switching of power transistors in DC-DC converters and inverters.
3. LED lighting: Drives high-power LEDs with precise control, enabling dimming and color mixing capabilities.
4. Audio amplifiers: Provides efficient switching of power transistors in audio amplification circuits, reducing power losses and improving overall performance.

Alternative Models

1. TC4420CPA: Similar functionality with a different package (DIP-8)
2. IR2110: Higher output current capability, suitable for high-power applications
3. MAX4420ESA: Low power consumption and smaller package size (SOIC-8)

These alternative models offer similar features and can be considered based on specific application requirements.

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