Overview
The MC33932VWR2 is a fully integrated motor driver IC produced by NXP USA Inc. It is designed primarily for automotive electronic throttle control but is also applicable to various low-voltage DC servo motor control applications. This device features a CMOS parallel interface and is packaged in a 44-HSOP (44-BSSOP with exposed pad) configuration, making it suitable for surface mount applications.
The MC33932VWR2 is known for its robust protection and operational features, including over-current limiting, short-circuit protection, and temperature-dependent current limit threshold reduction. These features make it an attractive and cost-effective solution for controlling a broad range of small DC motors.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Supply Voltage | 5 V to 28 V | Continuous operation; transient operation from 5.0 to 40 V |
| Output Current | Up to 5.0 A peak | RMS current capability subject to heatsinking |
| Output Configuration | Half Bridge (4) | |
| RDS(ON) | 235 mΩ maximum at 150 °C | Each H-Bridge MOSFET |
| Logic Compatibility | 3.0 and 5.0 V TTL / CMOS | |
| PWM Frequency | Up to 11 kHz | |
| Operating Temperature | -40°C to 125°C (TA) | |
| Package | 44-BSSOP (0.433", 11.00mm Width) Exposed Pad | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Key Features
- Internal peak-current limiting (regulation) activated at load currents above 6.5 A ±1.5 A
- Output short-circuit protection (short to VPWR or GND)
- Temperature-dependent current limit threshold reduction
- Load current feedback feature for monitoring by a microcontroller’s A/D input
- Status Flag output reports under-voltage, over-current, and over-temperature fault conditions
- Two independent inputs for polarity control of two half-bridge totem pole outputs
- Two independent disable inputs to force the H-Bridge outputs to tri-state (high-impedance off state)
- Sleep mode with current draw < 50 µA (each half with inputs floating or set to match default logic states)
Applications
The MC33932VWR2 is primarily designed for automotive electronic throttle control. However, it is also suitable for a wide range of low-voltage DC servo motor control applications, including but not limited to:
- Automotive systems
- Industrial automation
- Robotics
- Consumer electronics requiring motor control
Q & A
- What is the maximum output current of the MC33932VWR2?
The MC33932VWR2 can handle peak DC load currents of up to 5.0 A.
- What is the operating voltage range of the MC33932VWR2?
The device operates continuously from 5 V to 28 V, with transient operation from 5.0 to 40 V.
- What type of logic compatibility does the MC33932VWR2 have?
The device is compatible with 3.0 and 5.0 V TTL / CMOS logic inputs.
- What is the maximum PWM frequency supported by the MC33932VWR2?
The device can support PWM frequencies up to 11 kHz.
- Does the MC33932VWR2 have built-in protection features?
Yes, it includes over-current limiting, short-circuit protection, and temperature-dependent current limit threshold reduction.
- How does the MC33932VWR2 report fault conditions?
The device has a Status Flag output that reports under-voltage, over-current, and over-temperature fault conditions.
- What is the package type of the MC33932VWR2?
The device is packaged in a 44-BSSOP (0.433", 11.00mm Width) with an exposed pad.
- What is the operating temperature range of the MC33932VWR2?
The device operates from -40°C to 125°C (TA).
- Does the MC33932VWR2 have a sleep mode?
Yes, it has a sleep mode with a current draw of less than 50 µA (each half with inputs floating or set to match default logic states).
- What type of motor is the MC33932VWR2 designed to control?
The device is designed to control brushed DC motors.
