Overview
The L6228PDTR is a DMOS fully integrated stepper motor driver produced by STMicroelectronics. This device is realized in BCD (Bipolar, CMOS, DMOS) technology, which integrates isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. It is designed to drive two-phase bipolar stepper motors and includes all necessary circuitry such as a dual DMOS full bridge, a constant off-time PWM current controller, and a phase sequence generator for stepping sequence generation.
The L6228PDTR is available in PowerSO36 and SO24 packages, offering flexibility in design and application. It features non-dissipative overcurrent protection on the high-side power MOSFETs and thermal shutdown, ensuring reliable and safe operation.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Supply Voltage | 8 to 52 V |
| Output Peak Current | 2.8 A (1.4 A RMS) |
| RDS(ON) | 0.73 Ω (typ. at Tj = 25 °C) |
| Operating Frequency | Up to 100 KHz |
| Package | PowerSO36, SO24 (20 + 2 + 2) |
| Operating Temperature Range | -40°C to 150°C |
Key Features
- Non-dissipative overcurrent protection on high-side power MOSFETs
- Dual independent constant off-time PWM current controllers
- Fast/slow decay mode selection
- Fast decay quasi-synchronous rectification
- Decoding logic for stepper motor full and half step drive
- Cross conduction protection
- Thermal shutdown
- Undervoltage lockout
- Integrated fast freewheeling diodes
Applications
The L6228PDTR is suitable for a variety of applications, including:
- Industrial automation systems
- Medical equipment
- Printers and plotters
- Office automation equipment
- Any application requiring precise control of bipolar stepper motors
Q & A
- What is the L6228PDTR?
The L6228PDTR is a DMOS fully integrated stepper motor driver produced by STMicroelectronics.
- What technology is used in the L6228PDTR?
The L6228PDTR is realized in BCD (Bipolar, CMOS, DMOS) technology.
- What are the available packages for the L6228PDTR?
The L6228PDTR is available in PowerSO36 and SO24 packages.
- What is the operating supply voltage range of the L6228PDTR?
The operating supply voltage range is from 8 to 52 V.
- What is the output peak current of the L6228PDTR?
The output peak current is 2.8 A (1.4 A RMS).
- Does the L6228PDTR have overcurrent protection?
Yes, it features non-dissipative overcurrent protection on the high-side power MOSFETs.
- What is the maximum operating frequency of the L6228PDTR?
The maximum operating frequency is up to 100 KHz.
- Does the L6228PDTR have thermal shutdown?
Yes, it includes thermal shutdown for safe operation.
- What types of decay modes are available in the L6228PDTR?
The L6228PDTR offers fast/slow decay mode selection.
- Are there any integrated diodes in the L6228PDTR?
Yes, it includes integrated fast freewheeling diodes.
