Overview
The L6227Q is a DMOS dual full bridge driver with PWM current controller, designed by STMicroelectronics for motor control applications. It is realized in BCDmultipower technology, which integrates isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. This device is particularly suited for controlling bipolar stepper motors and dual or quad DC motors. The L6227Q features advanced protection mechanisms, including non-dissipative overcurrent protection and thermal shutdown, ensuring reliable operation under various conditions.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Operating Supply Voltage | 8 to 52 | V |
| Output Peak Current | 2.8 A | A |
| Output DC Current | 1.4 A | A |
| RDS(on) | 0.73 Ω @ TJ = 25 °C | Ω |
| Operating Frequency | Up to 100 kHz | kHz |
| Thermal Shutdown Temperature | 165 °C | °C |
| Package | VQFPN32 5 mm x 5 mm |
Key Features
- Operating supply voltage from 8 to 52 V
- 2.8 A output peak current (1.4 A DC)
- RDS(on) of 0.73 Ω typical at TJ = 25 °C
- Operating frequency up to 100 kHz
- Non-dissipative overcurrent protection
- Dual independent constant tOFF PWM current controllers
- Slow decay synchronous rectification
- Cross conduction protection
- Thermal shutdown
- Under voltage lockout
- Integrated fast free wheeling diodes
Applications
- Bipolar stepper motor control
- Dual or quad DC motor control
Q & A
- What is the operating supply voltage range of the L6227Q?
The operating supply voltage range of the L6227Q is from 8 to 52 V.
- What is the maximum output peak current of the L6227Q?
The maximum output peak current of the L6227Q is 2.8 A.
- What is the typical RDS(on) of the L6227Q at 25 °C?
The typical RDS(on) of the L6227Q at 25 °C is 0.73 Ω.
- What is the maximum operating frequency of the L6227Q?
The maximum operating frequency of the L6227Q is up to 100 kHz.
- Does the L6227Q have overcurrent protection?
Yes, the L6227Q features non-dissipative overcurrent protection.
- What type of PWM current controllers does the L6227Q have?
The L6227Q includes dual independent constant tOFF PWM current controllers.
- What is the thermal shutdown temperature of the L6227Q?
The thermal shutdown temperature of the L6227Q is typically 165 °C.
- What package type is the L6227Q available in?
The L6227Q is available in a VQFPN32 5 mm x 5 mm package.
- Does the L6227Q have integrated fast free wheeling diodes?
Yes, the L6227Q has integrated fast free wheeling diodes.
- What are the typical applications of the L6227Q?
The L6227Q is typically used for bipolar stepper motor and dual or quad DC motor control.
