Overview
The MC33039DG, produced by ON Semiconductor, is a high-performance closed-loop speed control adapter designed specifically for brushless DC motor control systems. This device is engineered to provide 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 utilized 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 | TA | -40 | - | 85 | °C |
| Storage Temperature Range | Tstg | -65 | - | 150 | °C |
| Power Supply Current | ICC | 1.8 | 3.9 | 5.0 | mA |
| Zener Voltage (IZ = 10 mA) | 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 the 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 available
Applications
The MC33039DG is primarily used in closed-loop speed control systems for brushless DC motors. It is particularly suitable for applications where precise speed regulation is required without the need for a magnetic or optical tachometer. This includes:
- Brushless DC motor control systems
- Industrial automation and control systems
- Automotive systems requiring precise motor speed control
- Consumer electronics with brushless DC motors
Q & A
- What is the primary function of the MC33039DG?
The MC33039DG is a high-performance closed-loop speed control adapter designed for use in brushless DC motor control systems, providing precise speed regulation without the need for a magnetic or optical tachometer.
- What is the operating voltage range of the MC33039DG?
The MC33039DG operates within a voltage range of 5.5 V to 9 V.
- What types of inputs does the MC33039DG have?
The MC33039DG has TTL compatible inputs with hysteresis for noise immunity.
- Does the MC33039DG have an internal shunt regulator?
Yes, the MC33039DG includes an internal shunt regulator that allows operation from a non-regulated voltage source.
- What is the purpose of the inverter output on the MC33039DG?
The inverter output is used for easy conversion between 60°/300° and 120°/240° sensor phasing conventions.
- What are the typical applications of the MC33039DG?
The MC33039DG is used in brushless DC motor control systems, industrial automation, automotive systems, and consumer electronics requiring precise motor speed control.
- What is the maximum operating junction temperature of the MC33039DG?
The maximum operating junction temperature is 150°C.
- What is the storage temperature range for the MC33039DG?
The storage temperature range is from -65°C to 150°C.
- Is the MC33039DG available in Pb-free packages?
Yes, Pb-free packages are available for the MC33039DG.
- Can the MC33039DG be used with other motor controllers besides the MC33035?
Yes, although it is primarily intended for use with the MC33035, it can be used cost-effectively in many other closed-loop speed control applications.
