Overview
The L6225 is a DMOS Dual Full Bridge driver designed for motor control applications, developed by STMicroelectronics. It is realized in MultiPower-BCD technology, which integrates isolated DMOS Power Transistors with CMOS and bipolar circuits on the same chip. This device is available in PowerDIP20 (16+2+2), PowerSO20, and SO20 (16+2+2) packages. The L6225 features advanced protection mechanisms including non-dissipative overcurrent protection and thermal shutdown, making it suitable for a variety of motor control tasks.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Supply Voltage (VS) | VSA = VSB = VS | 8 | - | 52 | V |
| Output Peak Current (IOUT) | - | - | 2.8 | - | A |
| Output DC Current (IOUT) | - | - | 1.4 | - | A |
| RDS(ON) | Tj = 25 °C | 1.47 | 1.69 | 2.35 | Ω |
| Operating Frequency (fsw) | - | - | - | 100 kHz | - |
| Thermal Shutdown Temperature (Tj(OFF)) | - | - | - | 165 °C | - |
Key Features
- Integrated fast free-wheeling diodes
- Under voltage lockout
- Cross conduction protection
- Paralleled operation capability
- Operating supply voltage from 8 to 52V
- RDS(ON) of 0.73Ω (typical value at Tj = 25 °C)
- 2.8A output peak current (1.4A DC)
- Non-dissipative overcurrent protection
- Thermal shutdown
- Operating frequency up to 100 kHz
Applications
The L6225 is typically used in motor control applications, including:
- Bipolar stepper motors
- Dual or quad DC motors
It is suitable for various industrial and automotive applications where robust motor control and protection are required.
Q & A
- What is the operating supply voltage range of the L6225?
The operating supply voltage range of the L6225 is from 8 to 52V.
- What is the typical output peak current of the L6225?
The typical output peak current of the L6225 is 2.8A, with a DC current of 1.4A.
- What protection mechanisms does the L6225 include?
The L6225 includes non-dissipative overcurrent protection, thermal shutdown, and cross conduction protection.
- Can the outputs of the L6225 be paralleled?
- What is the thermal shutdown temperature of the L6225?
The thermal shutdown temperature of the L6225 is typically 165 °C.
- What is the maximum operating frequency of the L6225?
The maximum operating frequency of the L6225 is up to 100 kHz.
- What type of technology is used in the L6225?
The L6225 is realized in MultiPower-BCD technology, combining isolated DMOS Power Transistors with CMOS and bipolar circuits.
- What are the typical applications of the L6225?
The L6225 is typically used in bipolar stepper motor and dual or quad DC motor applications.
- How does the overcurrent protection work in the L6225?
The overcurrent protection in the L6225 is non-dissipative and uses an internal overcurrent detection circuit that senses the output current and triggers a fault condition when the threshold is exceeded.
- What are the available packages for the L6225?
The L6225 is available in PowerDIP20 (16+2+2), PowerSO20, and SO20 (16+2+2) packages.
