MC33882FC

Product Overview

• Category: Integrated Circuit
• Use: Motor Driver
• Characteristics: High voltage, high current, automotive-grade
• Package: Power SOIC
• Essence: Control and drive motors in automotive applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Operating Voltage: 5.5V to 28V
• Output Current: Up to 5A
• Number of Outputs: 2
• Operating Temperature Range: -40°C to +125°C
• Protection Features: Overcurrent, overtemperature, undervoltage lockout

Detailed Pin Configuration

The MC33882FC has a total of 20 pins. The pin configuration is as follows:

1. IN1: Input 1
2. IN2: Input 2
3. OUT1: Output 1
4. OUT2: Output 2
5. VBB: Battery Supply Voltage
6. GND: Ground
7. VREF: Reference Voltage
8. EN: Enable Input
9. DIAG: Diagnostic Output
10. CS: Current Sense
11. SENSE1: Sense Input 1
12. SENSE2: Sense Input 2
13. VCP: Charge Pump Capacitor
14. CP1: Charge Pump Output 1
15. CP2: Charge Pump Output 2
16. VDD: Logic Supply Voltage
17. VREG: Regulator Output
18. VREGC: Regulator Capacitor
19. VREGI: Regulator Input
20. NC: No Connection

Functional Features

• Dual H-Bridge configuration for bidirectional motor control
• Built-in charge pump for low-side gate drive
• Overcurrent protection with adjustable threshold
• Diagnostic output for fault detection
• Undervoltage lockout for reliable operation

Advantages and Disadvantages

Advantages

• High voltage and current capability suitable for automotive applications
• Integrated protection features enhance system reliability
• Compact package size for space-constrained designs
• Wide operating temperature range for harsh environments

Disadvantages

• Limited number of outputs may restrict certain motor control configurations
• Automotive-grade components may have higher cost compared to standard ICs

Working Principles

The MC33882FC is designed to control and drive motors in automotive systems. It utilizes a dual H-Bridge configuration, allowing bidirectional control of the motor. The inputs (IN1 and IN2) determine the direction of rotation, while the outputs (OUT1 and OUT2) provide the necessary power to drive the motor.

The integrated charge pump generates a higher voltage for the low-side gate drive, ensuring efficient switching of the motor. Overcurrent protection safeguards the circuit by monitoring the current flowing through the motor and triggering a fault condition if it exceeds the set threshold.

Undervoltage lockout prevents operation when the supply voltage drops below a specified level, protecting the motor driver and the motor itself from potential damage.

Detailed Application Field Plans

The MC33882FC is primarily used in automotive applications where motor control is required. Some common application fields include:

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

Detailed and Complete Alternative Models

1. MC33926: Dual H-Bridge Motor Driver with Current Sense
2. MC34933: Triple Half-Bridge Gate Driver
3. MC33035: Brushless DC Motor Controller
4. MC33887: Hex Half-Bridge Motor Driver
5. MC33932: Dual H-Bridge Motor Driver with Serial Interface

These alternative models offer similar functionality and can be considered as alternatives to the MC33882FC depending on specific application requirements.

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