Overview
The L6235D013TR, produced by STMicroelectronics, is a DMOS fully integrated 3-phase motor driver designed for driving 3-phase brushless DC (BLDC) motors. Realized in BCD technology, this device combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. It includes all the necessary circuitry for driving a 3-phase BLDC motor, such as a 3-phase DMOS bridge, a constant off-time PWM current controller, and decoding logic for single-ended hall sensors.
The L6235D013TR is available in the SO-24 package and features non-dissipative overcurrent protection, thermal shutdown, and various other protective and control mechanisms.
Key Specifications
| Specification | 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 Tj = 25 °C) |
| Operating Frequency | Up to 100 KHz |
| Package | SO-24 |
| Operating Temperature Range | -40 °C to 150 °C |
| RoHS Compliance Grade | Ecopack1 |
Key Features
- Non-dissipative overcurrent detection and protection
- Diagnostic output
- Constant off-time PWM current controller
- Slow decay synchronous rectification
- 60° and 120° hall effect decoding logic
- Brake function
- Tachometer output for speed loop
- Cross conduction protection
- Thermal shutdown
- Undervoltage lockout
- Integrated fast freewheeling diodes
Applications
The L6235D013TR is suitable for a variety of applications involving 3-phase BLDC motors, including:
- Industrial automation and robotics
- Aerospace and defense systems
- Automotive systems (e.g., electric power steering, fuel pumps)
- Medical devices (e.g., ventilators, pumps)
- Consumer appliances (e.g., fans, pumps)
Q & A
- What is the operating supply voltage range of the L6235D013TR?
The operating supply voltage range is from 8 to 52 V.
- What is the maximum output peak current of the L6235D013TR?
The maximum output peak current is 5.6 A (2.8 A DC).
- What is the typical RDS(ON) value of the L6235D013TR at 25 °C?
The typical RDS(ON) value is 0.3 Ω.
- What is the maximum operating frequency of the L6235D013TR?
The maximum operating frequency is up to 100 KHz.
- What type of protection does the L6235D013TR offer against overcurrent?
The device offers non-dissipative overcurrent detection and protection.
- Does the L6235D013TR have thermal shutdown protection?
Yes, it includes thermal shutdown protection.
- What is the purpose of the tachometer output in the L6235D013TR?
The tachometer output is used for developing an easy speed control loop by using an external op-amp.
- How does the L6235D013TR handle cross conduction protection?
Cross conduction protection is implemented using a deadtime set by an internal timing circuit.
- What is the RoHS compliance grade of the L6235D013TR?
The RoHS compliance grade is Ecopack1.
- In what package is the L6235D013TR available?
The L6235D013TR is available in the SO-24 package.
