MCZ33903BD3EK

Product Overview

• Category: Integrated Circuit (IC)
• Use: Motor Control
• Characteristics: High-performance, automotive-grade motor control IC
• Package: D3EK package
• Essence: Efficient and reliable motor control solution
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Operating Voltage: 5V to 18V
• Operating Temperature: -40°C to +125°C
• Number of Channels: 3
• Output Current per Channel: Up to 1.5A
• Protection Features: Overcurrent protection, overtemperature protection, undervoltage lockout

Detailed Pin Configuration

The MCZ33903BD3EK has the following pin configuration:

1. VBAT: Battery voltage supply
2. GND: Ground
3. IN1: Input for Channel 1
4. OUT1: Output for Channel 1
5. IN2: Input for Channel 2
6. OUT2: Output for Channel 2
7. IN3: Input for Channel 3
8. OUT3: Output for Channel 3
9. EN: Enable pin
10. DIAG: Diagnostic output
11. VREF: Reference voltage
12. VDD: Logic voltage supply

Functional Features

• Motor Control: Provides efficient control of up to three motors simultaneously
• Integrated Protection: Incorporates overcurrent and overtemperature protection for enhanced safety
• Diagnostic Output: Offers diagnostic information through the DIAG pin
• Flexible Voltage Supply: Supports a wide operating voltage range for versatile applications
• Enable Pin: Allows for easy enable/disable control of the motor outputs

Advantages and Disadvantages

Advantages

• High-performance motor control solution
• Automotive-grade quality for reliable operation in harsh environments
• Integrated protection features enhance safety and durability
• Diagnostic output provides valuable information for troubleshooting

Disadvantages

• Limited to three motor channels, may not be suitable for applications requiring more channels
• Requires external voltage supplies for logic and motor power

Working Principles

The MCZ33903BD3EK is designed to control the speed and direction of up to three motors. It operates by receiving input signals through the IN1, IN2, and IN3 pins, which determine the desired motor behavior. The IC then processes these signals and drives the corresponding motor outputs (OUT1, OUT2, and OUT3) accordingly.

The enable pin (EN) allows for easy enable/disable control of the motor outputs. When disabled, the motor outputs are turned off, conserving power and preventing unintended motor movement.

The IC also incorporates protection features such as overcurrent and overtemperature protection. These safeguards ensure that the motor and the IC itself are protected from damage in case of abnormal operating conditions.

Detailed Application Field Plans

The MCZ33903BD3EK is widely used in various automotive applications, including:

1. Electric power steering systems
2. HVAC blowers and fans
3. Window lift and sunroof control
4. Seat adjustment mechanisms
5. Mirror positioning systems

Its high-performance characteristics, integrated protection features, and automotive-grade quality make it an ideal choice for these demanding applications.

Detailed and Complete Alternative Models

1. MC33903: Similar functionality with a different package option (D2PAK)
2. MC33904: Four-channel motor control IC with additional features
3. MC33905: Five-channel motor control IC with enhanced diagnostic capabilities

These alternative models offer similar motor control capabilities and can be considered based on specific application requirements.

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