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TB6643KQ

Name: TB6643KQ
Rating: 4.7 (12 reviews)

Toshiba

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概述

Description

TB6643KQ is a highly integrated LED driver IC commonly used in various lighting applications, such as backlighting and general illumination. This chip features a constant current output, making it ideal for driving high-brightness LEDs with efficiency and stability. The TB6643KQ supports a wide input voltage range and incorporates features like thermal shutdown, overcurrent protection, and dimming control, enhancing its reliability and performance.
Typically, it operates in a step-down (buck) configuration, allowing for a compact design. The device can be controlled via PWM (Pulse Width Modulation) for adjustable brightness, making it suitable for both consumer electronics and industrial applications. Its small package size facilitates integration into space-constrained designs. Overall, TB6643KQ offers a robust solution for efficient LED driving with precise current control and safety features.

Features

The TB6643KQ is a high-performance, integrated motor driver IC designed for driving DC motors and small stepper motors. Key features include:
1. Dual H-Bridge Configuration: It supports bidirectional control of two motors or one bipolar stepper motor.
2. Output Current: Capable of delivering up to 1.5A per channel, with a peak current of around 3A.
3. Voltage Range: Operates within a supply voltage range of 4.5V to 45V, making it suitable for various applications.
4. PWM Control: Supports pulse-width modulation for speed control and torque regulation.
5. Built-in Protection: Features include overcurrent protection, thermal shutdown, and undervoltage lockout to ensure reliability.
6. Logic Level Inputs: Compatible with standard logic levels, simplifying interfacing with microcontrollers.
7. Compact Package: Available in a small, thermally efficient package, suitable for space-constrained designs.
These features make the TB6643KQ ideal for robotics, automation, and consumer electronics applications.

Package

The TB6643KQ is packaged in a QFP (Quad Flat Package) format. This type of package features a square shape with pins on all four sides, allowing for surface mounting on PCBs.

Pinout

The TB6643KQ is a low-voltage, dual H-bridge motor driver IC, commonly used for driving DC motors and stepper motors in various applications. It features a total of 16 pins.
Pin Functions:
1. VCC: Power supply for the IC.
2. GND: Ground connection.
3. OUT1 and OUT2: Outputs for Motor A.
4. OUT3 and OUT4: Outputs for Motor B.
5. IN1 and IN2: Control inputs for Motor A.
6. IN3 and IN4: Control inputs for Motor B.
7. PWM1 and PWM2: PWM inputs for speed control of Motors A and B.
8. DIAG1 and DIAG2: Diagnostic outputs for fault detection.
9. SLEEP: Sleep mode control pin.
10. FAULT: Indicates fault conditions.
11. VREF: Reference voltage for current control.
This IC is widely used for its efficiency and ability to drive motors bidirectionally with adjustable speed control.

Manufacturer

The TB6643KQ is manufactured by Toshiba Corporation, a multinational conglomerate based in Japan. Toshiba operates in various sectors, including electronics, semiconductors, energy, and infrastructure. The company is known for its innovations in technology and manufacturing, particularly in the fields of computing, storage devices, and power systems. Toshiba has a strong focus on research and development, enabling it to produce a wide range of electronic components and systems for various applications, including automotive, industrial, and consumer electronics. The TB6643KQ itself is a motor driver IC, widely used in robotics and automation applications.

Application

The TB6643KQ is a high-performance motor driver IC primarily used in applications such as robotics, home appliances, and office automation. It is suitable for driving DC and stepper motors, making it ideal for uses in 3D printers, automated guided vehicles, and various consumer electronics requiring efficient motor control and precise positioning. Its features include low power consumption and integrated protection mechanisms, enhancing its reliability in diverse applications.

Equivalent

The TB6643KQ is a motor driver IC, commonly used in robotics and automation. Equivalent products include the A4988, DRV8825, L298N, and TB6612FNG. These alternatives may vary in specifications like current handling and voltage limits, so ensure compatibility with your specific application. Always check datasheets for precise comparisons.