Overview
The L6226D, produced by STMicroelectronics, is a DMOS dual full bridge driver designed for motor control applications. 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 suitable for controlling bipolar stepper motors and dual or quad DC motors.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Supply Voltage (VS) | 8 | - | 52 | V |
| Output Peak Current | - | 2.8 A | - | A |
| Output DC Current | - | 1.4 A | - | A |
| RDS(on) @ TJ = 25 °C | 1.47 | 1.69 | 2.35 | Ω |
| Operating Frequency | - | - | 100 kHz | kHz |
| Thermal Shutdown Temperature | - | 165 | - | °C |
| Maximum Junction Temperature | -25 | - | 125 | °C |
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 value @ TJ = 25 °C)
- Operating frequency up to 100 kHz
- Programmable high side overcurrent detection and protection
- Diagnostic output
- Paralleled operation capability
- Cross conduction protection
- Thermal shutdown
- Undervoltage lockout
- Integrated fast free wheeling diodes
Applications
- Bipolar stepper motor control
- Dual or quad DC motor control
The L6226D is designed to handle various motor control applications, ensuring reliable and efficient operation.
Q & A
- What is the operating supply voltage range of the L6226D?
The operating supply voltage range is from 8 to 52 V.
- What is the maximum output peak current of the L6226D?
The maximum output peak current is 2.8 A, with a DC current of 1.4 A.
- What is the typical RDS(on) value of the L6226D at 25 °C?
The typical RDS(on) value is 0.73 Ω at 25 °C.
- What is the maximum operating frequency of the L6226D?
The maximum operating frequency is up to 100 kHz.
- Does the L6226D have overcurrent protection?
Yes, it has programmable high side overcurrent detection and protection.
- What is the thermal shutdown temperature of the L6226D?
The thermal shutdown temperature is typically 165 °C.
- Can the L6226D be used in paralleled operation?
Yes, it supports paralleled operation.
- Does the L6226D have integrated fast free wheeling diodes?
Yes, it has integrated fast free wheeling diodes.
- What types of motors can the L6226D control?
The L6226D can control bipolar stepper motors and dual or quad DC motors.
- How should the power and signal grounds be handled in the PCB layout?
It is recommended to keep power ground and signal ground separated on the PCB.
