Overview
The MC33887APVWR2 is a monolithic H-bridge power IC designed by NXP USA Inc. for driving brushed DC motors, particularly in automotive applications. This integrated circuit is renowned for its robust performance and advanced features, making it ideal for closed-loop DC motor control. It operates with a supply voltage range of 5.0 V to 28 V and can handle continuous DC load currents up to 5.0 A, with peak current active limiting between 5.2 A and 7.8 A.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage Range | 5.0 V to 28 V | - |
| Continuous DC Load Current | Up to 5.0 A | - |
| Peak Current Active Limiting | 5.2 A to 7.8 A | - |
| PWM Frequency | Up to 10 kHz | - |
| Output ON-Resistance (RDS(ON)) | 120 mΩ (Typical at 5.0 V ≤ V+ ≤ 28 V, TJ = 25°C) | 5.0 V ≤ V+ ≤ 28 V, TJ = 25°C |
| Operating Temperature Range | -40°C to 125°C | - |
| Sleep Mode Current Draw | ≤50 μA | Inputs Floating or Set to Match Default Logic States |
Key Features
- Fully specified operation from 5.0 V to 28 V, with limited operation up to 40 V with derating of specifications.
- TTL/CMOS compatible inputs for easy integration with microcontrollers.
- Active current limiting and regulation to protect the device and the motor.
- Load current feedback feature providing a proportional (1/375th of the load current) constant-current output suitable for monitoring by a microcontroller’s A/D input.
- Fault status reporting for undervoltage, short circuit, and overtemperature conditions.
- Sleep mode with current draw ≤50 μA to minimize power consumption when not in use.
- Low RDS(ON) MOSFET output circuitry for efficient power handling.
Applications
The MC33887APVWR2 is primarily designed for automotive applications, including but not limited to:
- Brushed DC motor control in vehicles.
- Automotive actuators and pumps.
- Other high-current, high-reliability motor control applications.
Q & A
- What is the primary application of the MC33887APVWR2?
The MC33887APVWR2 is primarily designed for driving brushed DC motors in automotive applications.
- What is the supply voltage range of the MC33887APVWR2?
The supply voltage range is from 5.0 V to 28 V, with limited operation up to 40 V.
- What is the maximum continuous DC load current the MC33887APVWR2 can handle?
The device can handle continuous DC load currents up to 5.0 A.
- What is the peak current active limiting range of the MC33887APVWR2?
The peak current active limiting range is between 5.2 A and 7.8 A.
- What is the maximum PWM frequency supported by the MC33887APVWR2?
The device supports PWM frequencies up to 10 kHz.
- What is the typical output ON-resistance (RDS(ON)) of the MC33887APVWR2?
The typical output ON-resistance is 120 mΩ at 5.0 V ≤ V+ ≤ 28 V, TJ = 25°C.
- Does the MC33887APVWR2 have fault status reporting?
- How does the load current feedback feature work?
The load current feedback feature provides a proportional (1/375th of the load current) constant-current output suitable for monitoring by a microcontroller’s A/D input.
- What is the current draw in sleep mode?
The current draw in sleep mode is ≤50 μA when inputs are floating or set to match default logic states.
- Is the MC33887APVWR2 compatible with TTL/CMOS inputs?
