Overview
The MC33039DR2 is a high-performance closed-loop speed control adapter designed by onsemi for use in brushless DC motor control systems. This device enables precise speed regulation without the need for a magnetic or optical tachometer. It is primarily intended for use with the MC33035 brushless motor controller but can be applied in various other closed-loop speed control applications.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Supply Operating Voltage Range | VCC | 5.5 | - | - | V |
| Logic Input Current (High State) | IIH | - | - | 5.0 | mA |
| Output Current (Sink or Source) | IDRV | - | - | 20 | mA |
| Operating Junction Temperature | TJ | - | - | 150 | °C |
| Operating Ambient Temperature Range (MC33039) | TA | -40 | - | 85 | °C |
| Operating Ambient Temperature Range (NCV33039) | TA | -40 | - | 125 | °C |
| Storage Temperature Range | Tstg | -65 | - | 150 | °C |
| Power Supply Current | ICC | 1.8 | 3.9 | 5.0 | mA |
| Zener Voltage | VZ | 7.5 | 8.25 | 9.0 | V |
Key Features
- Digital Detection of Each Input Transition for Improved Low Speed Motor Operation
- TTL Compatible Inputs With Hysteresis for noise immunity
- Operation Down to 5.5 V for Direct Powering from MC33035 Reference
- Internal Shunt Regulator Allows Operation from a Non-Regulated Voltage Source
- Inverter Output for Easy Conversion between 60°/300° and 120°/240° Sensor Phasing Conventions
- Pb-Free Packages are Available
Applications
The MC33039DR2 is designed for use in brushless DC motor control systems, particularly with the MC33035 brushless motor controller. It is suitable for various closed-loop speed control applications where precise speed regulation is required without the need for a magnetic or optical tachometer. This includes but is not limited to:
- Industrial automation and control systems
- Aerospace and defense applications
- Automotive systems requiring precise motor control
- Medical devices and equipment
- Consumer electronics with brushless DC motors
Q & A
- What is the primary function of the MC33039DR2?
The MC33039DR2 is a high-performance closed-loop speed control adapter designed for use in brushless DC motor control systems, enabling precise speed regulation without the need for a magnetic or optical tachometer.
- What are the key features of the MC33039DR2?
The key features include digital detection of each input transition, TTL compatible inputs with hysteresis, operation down to 5.5 V, an internal shunt regulator, and an inverter output for sensor phasing conversion.
- What is the operating voltage range of the MC33039DR2?
The device operates within a voltage range of 5.5 V to the maximum VCC specified, with guaranteed operation down to 5.5 V over temperature.
- What are the temperature ranges for the MC33039 and NCV33039?
The MC33039 operates from -40°C to +85°C, while the NCV33039 operates from -40°C to +125°C.
- What is the purpose of the internal shunt regulator?
The internal shunt regulator allows the device to operate from a non-regulated voltage source.
- Can the MC33039DR2 be used with other motor controllers besides the MC33035?
- What is the significance of the inverter output?
The inverter output is used for easy conversion between 60°/300° and 120°/240° sensor phasing conventions.
- Are Pb-Free packages available for the MC33039DR2?
- What is the maximum power dissipation of the MC33039DR2 at TA = +85°C?
The maximum power dissipation is 100 mW at TA = +85°C.
- What is the storage temperature range for the MC33039DR2?
The storage temperature range is from -65°C to +150°C.
