Overview
The L6235PD013TR, produced by STMicroelectronics, is a DMOS fully integrated 3-phase motor driver designed for driving 3-phase Brushless DC (BLDC) motors. This device is realized in BCD (Bipolar, CMOS, DMOS) technology, combining isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. It includes a 3-phase DMOS bridge, a constant off-time PWM current controller, and decoding logic for single-ended hall sensors, making it a comprehensive solution for BLDC motor control.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Supply Voltage | 8 to 52 V |
| Output Peak Current | 5.6 A (2.8 A DC) |
| RDS(ON) | 0.3 Ω (typical at 25 °C) |
| Operating Frequency | Up to 100 KHz |
| Package Types | PowerSO36, SO24 |
| Operating Temperature Range | -40 °C to 150 °C |
| Overcurrent Detection Threshold | Typically 5.6 A |
Key Features
- Non-dissipative overcurrent detection and protection
- Diagnostic output for fault indication
- Constant off-time PWM current controller
- Slow decay synchronous rectification
- 60° and 120° hall effect decoding logic
- Brake function
- Tachometer output for speed loop control
- Cross conduction protection
- Thermal shutdown and undervoltage lockout
- Integrated fast freewheeling diodes
Applications
The L6235PD013TR is suitable for a variety of applications involving 3-phase BLDC motors, including but not limited to:
- Industrial automation and robotics
- Aerospace and defense systems
- Automotive systems (e.g., electric power steering, fuel pumps)
- Medical devices requiring precise motor control
- Consumer electronics with high-performance motor requirements
Q & A
- What is the operating supply voltage range of the L6235PD013TR?
The operating supply voltage range is from 8 to 52 V. - What is the peak output current of the L6235PD013TR?
The peak output current is 5.6 A, with a DC current of 2.8 A. - What is the typical RDS(ON) value of the L6235PD013TR?
The typical RDS(ON) value is 0.3 Ω at 25 °C. - What is the maximum operating frequency of the L6235PD013TR?
The maximum operating frequency is up to 100 KHz. - What types of packages are available for the L6235PD013TR?
The device is available in PowerSO36 and SO24 packages. - Does the L6235PD013TR have overcurrent protection?
Yes, it features non-dissipative overcurrent detection and protection. - How does the L6235PD013TR handle hall effect sensor decoding?
The device includes decoding logic for single-ended hall sensors, supporting 60° and 120° electrical degrees phasing. - What is the purpose of the tachometer output in the L6235PD013TR?
The tachometer output is used for speed loop control, providing a signal proportional to the motor speed. - Does the L6235PD013TR have thermal shutdown protection?
Yes, it includes thermal shutdown and undervoltage lockout protection. - How can the overcurrent detection threshold be managed in the L6235PD013TR?
The overcurrent detection threshold is typically set at 5.6 A and can be managed through external components connected to the DIAG pin.
