Overview
The L6229PD is a DMOS fully integrated 3-phase motor driver designed by STMicroelectronics. It is realized in BCD (Bipolar, CMOS, DMOS) technology, combining isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. This device is specifically tailored for driving 3-phase Brushless DC (BLDC) motors and includes all necessary circuitry such as a 3-phase DMOS bridge, a constant off-time PWM current controller, and decoding logic for single-ended Hall sensors. The L6229PD is available in the PowerSO36 package and features non-dissipative overcurrent protection and thermal shutdown.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Supply Voltage | 8 | - | 52 | V |
| Output Peak Current | - | - | 2.8 A | A |
| DC Output Current | - | - | 1.4 A | A |
| RDS(ON) | - | 0.73 Ω | - | Ω |
| Operating Frequency | - | - | 100 kHz | kHz |
| Thermal Shutdown Temperature | - | - | 165 °C | °C |
| Storage and Operating Temperature Range | -40 | - | 150 | °C |
Key Features
- Operating supply voltage from 8 to 52 V
- 2.8 A output peak current (1.4 A DC)
- RDS(ON) 0.73 Ω typical value at Tj = 25 °C
- Operating frequency up to 100 kHz
- Non-dissipative overcurrent detection and protection
- Diagnostic output
- Constant tOFF 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
- Factory automation end-points
- Home appliances
- Small pumps
- ATMs
Q & A
- What is the L6229PD used for?
The L6229PD is used to drive 3-phase Brushless DC (BLDC) motors.
- What is the operating supply voltage range of the L6229PD?
The operating supply voltage range is from 8 to 52 V.
- What is the maximum output peak current of the L6229PD?
The maximum output peak current is 2.8 A.
- What is the typical RDS(ON) value of the L6229PD at 25 °C?
The typical RDS(ON) value is 0.73 Ω.
- What is the maximum operating frequency of the L6229PD?
The maximum operating frequency is up to 100 kHz.
- Does the L6229PD have overcurrent protection?
Yes, it features non-dissipative overcurrent detection and protection.
- What type of decoding logic does the L6229PD support?
The L6229PD supports 60° and 120° Hall effect decoding logic.
- Does the L6229PD have thermal shutdown protection?
Yes, it includes thermal shutdown protection.
- What are some common applications of the L6229PD?
Common applications include factory automation end-points, home appliances, small pumps, and ATMs.
- In what packages is the L6229PD available?
The L6229PD is available in PowerSO36 and SO24 (20 + 2 + 2) packages.
