Overview
The LMD18200T is a 3A H-Bridge motor driver designed by Texas Instruments for motion control applications. It is built using a multi-technology process that combines bipolar and CMOS control circuitry with DMOS power devices on the same monolithic structure. This device is ideal for driving DC and stepper motors, accommodating peak output currents up to 6A. It features low-loss output current sensing and is suitable for various motion control tasks.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Continuous Output Current | Up to 3A | A |
| Peak Output Current | Up to 6A | A |
| Supply Voltage Range | Up to 55V | V |
| RDS(ON) per Switch | Typically 0.33Ω at 3A | Ω |
| Operating Temperature Range | -40°C to +125°C | °C |
| Thermal Warning Flag Output | 145°C | °C |
| Thermal Shutdown Temperature | 170°C | °C |
| Package Type | TO-220 (NDJ) | |
| Pins | 11 |
Key Features
- Delivers up to 3A continuous output and up to 6A peak output current.
- Operates at supply voltages up to 55V.
- Low RDS(ON) of typically 0.33Ω per switch at 3A.
- TTL and CMOS compatible inputs.
- No “shoot-through” current.
- Thermal warning flag output at 145°C and thermal shutdown at 170°C.
- Internal clamp diodes and shorted load protection.
- Internal charge pump with external bootstrap capability.
Applications
- DC and stepper motor drives.
- Position and velocity servomechanisms.
- Factory automation and robots.
- Numerically controlled machinery.
- Computer printers and plotters.
Q & A
- What is the LMD18200T used for? The LMD18200T is used for motion control applications, particularly for driving DC and stepper motors.
- What is the maximum continuous output current of the LMD18200T? The maximum continuous output current is up to 3A.
- What is the peak output current capability of the LMD18200T? The peak output current capability is up to 6A.
- What is the supply voltage range for the LMD18200T? The supply voltage range is up to 55V.
- What is the typical RDS(ON) of the LMD18200T? The typical RDS(ON) is 0.33Ω per switch at 3A.
- Does the LMD18200T have thermal protection features? Yes, it has a thermal warning flag output at 145°C and thermal shutdown at 170°C.
- Is the LMD18200T compatible with TTL and CMOS inputs? Yes, it is compatible with both TTL and CMOS inputs.
- Does the LMD18200T have internal clamp diodes and shorted load protection? Yes, it includes internal clamp diodes and shorted load protection.
- What is the package type of the LMD18200T? The package type is TO-220 (NDJ) with 11 pins.
- What are some common applications of the LMD18200T? Common applications include DC and stepper motor drives, position and velocity servomechanisms, factory automation, and numerically controlled machinery.
