Overview
The L6227DTR is a DMOS dual full bridge driver designed for motor control applications, developed by STMicroelectronics. This device is realized in BCD technology, combining isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. It features two independent constant off-time PWM current controllers, making it suitable for various motor control tasks. The L6227DTR is available in the SO-24 package and includes several protective features such as non-dissipative overcurrent protection, thermal shutdown, and undervoltage lockout.
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. at Tj = 25 °C) | Ω |
| Operating Frequency | Up to 100 KHz | KHz |
| Package | SO-24 | - |
| Operating Temperature Range | -40 to 150 | °C |
| RMS Output Current | 1.4 A | A |
| Thermal Shutdown Temperature | 165 | °C |
Key Features
- Dual independent constant off-time PWM current controllers
- Non-dissipative overcurrent protection
- Thermal shutdown
- Undervoltage lockout
- Cross conduction protection
- Slow decay synchronous rectification
- Integrated fast freewheeling diodes
Applications
- Bipolar stepper motor control
- Dual DC motor control
Q & A
- What is the operating supply voltage range of the L6227DTR?
The operating supply voltage range is from 8 to 52 V. - What is the maximum output peak current of the L6227DTR?
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 L6227DTR at 25 °C?
The typical RDS(ON) value is 0.73 Ω. - What is the maximum operating frequency of the L6227DTR?
The maximum operating frequency is up to 100 KHz. - What protective features does the L6227DTR include?
The device includes non-dissipative overcurrent protection, thermal shutdown, undervoltage lockout, and cross conduction protection. - What type of rectification does the L6227DTR support?
The device supports slow decay synchronous rectification. - What kind of diodes are integrated into the L6227DTR?
The device includes integrated fast freewheeling diodes. - In what package is the L6227DTR available?
The L6227DTR is available in the SO-24 package. - What is the thermal shutdown temperature of the L6227DTR?
The thermal shutdown temperature is 165 °C. - What are the typical applications of the L6227DTR?
The typical applications include bipolar stepper motor control and dual DC motor control.
