NCV7721D2R2G

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Motor Driver
• Characteristics: High voltage, high current, and high-speed switching capabilities
• Package: D2PAK-7
• Essence: Power MOSFET and gate driver integrated into a single chip
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 28V
• Output Current: Up to 3A
• Operating Temperature Range: -40°C to +150°C
• Input Logic Compatibility: CMOS/TTL
• Fault Detection and Protection Features: Overcurrent, Overtemperature, Undervoltage Lockout (UVLO)

Detailed Pin Configuration

The NCV7721D2R2G has the following pin configuration:

1. VCC: Supply voltage input
2. IN1: Input control signal for Channel 1
3. IN2: Input control signal for Channel 2
4. GND: Ground reference
5. OUT1: Output for Channel 1
6. OUT2: Output for Channel 2
7. VS: Sense voltage input for overcurrent protection

Functional Features

• Integrated power MOSFETs and gate drivers simplify motor control circuitry
• High voltage and current ratings enable driving of various types of motors
• Fast switching capability allows for efficient motor operation
• Fault detection and protection features ensure safe operation
• CMOS/TTL compatible inputs facilitate easy interfacing with microcontrollers or logic circuits

Advantages and Disadvantages

Advantages: - Integration of power MOSFETs and gate drivers reduces external component count and PCB space requirements - High voltage and current ratings make it suitable for a wide range of motor applications - Fast switching capability improves motor efficiency and performance - Fault detection and protection features enhance system reliability and safety

Disadvantages: - Limited output current (up to 3A) may not be sufficient for high-power motor applications - Operating temperature range (-40°C to +150°C) may not be suitable for extreme environments

Working Principles

The NCV7721D2R2G is designed to drive DC motors using a combination of power MOSFETs and gate drivers. The integrated power MOSFETs act as switches, controlling the flow of current through the motor windings. The gate drivers provide the necessary voltage and current levels to turn on/off the MOSFETs rapidly.

When an input control signal is applied to the IN1 or IN2 pins, the corresponding MOSFET is turned on, allowing current to flow through the motor. By controlling the timing and sequence of these signals, the motor's direction and speed can be controlled.

The device also incorporates fault detection and protection features such as overcurrent, overtemperature, and undervoltage lockout. These features ensure safe operation by monitoring the motor's current, temperature, and supply voltage, respectively, and taking appropriate actions in case of abnormal conditions.

Detailed Application Field Plans

The NCV7721D2R2G is widely used in various motor control applications, including:

1. Automotive: Electric power steering systems, HVAC blowers, windshield wipers, seat adjustment mechanisms.
2. Industrial: Robotics, conveyor belts, pumps, fans, and blowers.
3. Home Appliances: Washing machines, dishwashers, vacuum cleaners, and air conditioners.
4. Consumer Electronics: Camera lens positioning, printer mechanisms, and robotic toys.

Detailed and Complete Alternative Models

1. DRV8833: Dual H-Bridge motor driver with similar specifications and features.
2. L298N: Dual full-bridge motor driver with higher output current capability.
3. TB6612FNG: Dual motor driver with built-in protection features and compact package.

These alternative models offer similar functionality and can be considered as substitutes for the NCV7721D2R2G based on specific application requirements.

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