Overview
The L6229PDTR is a DMOS fully integrated 3-phase motor driver produced by STMicroelectronics. This device is designed to drive 3-phase brushless DC (BLDC) motors and is realized in BCD (Bipolar-CMOS-DMOS) technology. It combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip, providing a comprehensive solution for motor control applications. The L6229PDTR includes all necessary circuitry for driving a 3-phase BLDC motor, including a 3-phase DMOS bridge, a constant off-time PWM current controller, and decoding logic for single-ended Hall sensors.
Key Specifications
| Attribute | Value |
|---|---|
| No of Outputs | Triple |
| Output Current - Max | 2.8 A (peak), 1.4 A (DC) |
| Supply Voltage - Max | 52 V |
| Package Style | PowerSO-36 |
| Mounting Method | Surface Mount |
| Operating Frequency | Up to 100 kHz |
| RDS(ON) | 0.73 Ω (typ. at Tj = 25 °C) |
| Operating Temperature | -40 °C to 150 °C |
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 free wheeling diodes
Applications
The L6229PDTR is suitable for a variety of applications that require the control of 3-phase BLDC motors. These include but are not limited to:
- Industrial automation and robotics
- Aerospace and defense systems
- Automotive systems (e.g., fuel pumps, HVAC fans)
- Medical devices (e.g., ventilators, pumps)
- Consumer appliances (e.g., fans, pumps)
Q & A
- What is the maximum output current of the L6229PDTR?
The maximum output current is 2.8 A (peak) and 1.4 A (DC). - What is the maximum supply voltage for the L6229PDTR?
The maximum supply voltage is 52 V. - What package styles are available for the L6229PDTR?
The device is available in PowerSO-36 and SO24 packages. - What is the operating frequency range of the L6229PDTR?
The operating frequency can go up to 100 kHz. - Does the L6229PDTR have overcurrent protection?
Yes, it features non-dissipative overcurrent detection and protection. - What type of Hall effect decoding logic does the L6229PDTR support?
The device supports 60° and 120° Hall effect decoding logic. - Does the L6229PDTR have thermal shutdown protection?
Yes, it includes thermal shutdown protection. - What is the mounting method for the L6229PDTR?
The device is surface mountable. - Is the L6229PDTR RoHS compliant?
Yes, the L6229PDTR is RoHS compliant. - What are some common applications for the L6229PDTR?
Common applications include industrial automation, automotive systems, medical devices, and consumer appliances.
