Overview
The L6226Q is a DMOS dual full bridge driver designed for motor control applications, realized in BCDmultipower technology. This technology combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. The device is available in a QFN32 5x5 package and features thermal shutdown, non-dissipative overcurrent detection on the high side power MOSFETs, and a diagnostic output for overcurrent protection implementation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 8 to 52 | V |
| Output Peak Current | 2.8 A (1.4 A DC) | A |
| RDS(on) | 0.73 Ω (typ. @ TJ = 25 °C) | Ω |
| Operating Frequency | Up to 100 kHz | kHz |
| Thermal Shutdown Temperature | 165 °C (typ.) | °C |
| Thermal Resistance Junction-Ambient | 42 °C/W (max.) | °C/W |
| Operating Junction Temperature | -25 to 125 °C | °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
- Cross conduction protection
- Thermal shutdown
- Under voltage lockout
- Integrated fast free wheeling diodes
Applications
The L6226Q is primarily used for 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 is required.
Q & A
- What is the operating supply voltage range of the L6226Q?
The operating supply voltage range is from 8 to 52 V.
- What is the maximum output peak current of the L6226Q?
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 L6226Q at 25 °C?
The typical RDS(on) value is 0.73 Ω at 25 °C.
- What is the maximum operating frequency of the L6226Q?
The maximum operating frequency is up to 100 kHz.
- Does the L6226Q have thermal shutdown protection?
Yes, the L6226Q has thermal shutdown protection that activates at a junction temperature of 165 °C (typical value).
- Can the outputs of the L6226Q be paralleled?
Yes, the outputs can be paralleled to increase the output current capability or reduce power dissipation.
- What type of logic inputs does the L6226Q have?
The L6226Q has TTL/CMOS and microcontroller-compatible logic inputs.
- How does the overcurrent detection work in the L6226Q?
The overcurrent detection is programmable and uses a non-dissipative method on the high side power MOSFETs, with a diagnostic output for protection implementation.
- What is the package type and size of the L6226Q?
The L6226Q is available in a QFN32 5x5 package.
- What are the key applications of the L6226Q?
The key applications include bipolar stepper motors and dual or quad DC motors.
