Overview
The LMD18200T/LF14, produced by Texas Instruments, is a high-performance 3A H-Bridge motor driver designed for various motion control applications. This device combines bipolar and CMOS control circuitry with DMOS power devices, offering robust and efficient motor control. It is particularly suited for DC and stepper motor drives, position and velocity servomechanisms, and other industrial automation applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Total Supply Voltage (VS) | 60 | V |
| Continuous Output Current | 3 | A |
| Peak Output Current (200 ms) | 6 | A |
| Power Dissipation (TA = 25°C, Free Air) | 3 | W |
| Junction Temperature, TJ(max) | 150 | °C |
| Thermal Shutdown Temperature | 170 | °C |
| Thermal Warning Flag Temperature | 145 | °C |
| Output Turn-On Delay Time | 300 | ns |
| Output Turn-On Switching Time | 300 | ns |
| RDS(ON) per Switch at 3A | 0.33 | Ω |
Key Features
- TTL and CMOS compatible inputs
- No 'shoot-through' current
- Internal clamp diodes for load protection
- Shorted load protection
- Thermal shutdown and warning flag output
- Integrated current sensing feedback
- Low RDS(ON) of typically 0.33Ω per switch at 3A
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 maximum continuous output current of the LMD18200T/LF14?
The maximum continuous output current is 3A. - What is the peak output current of the LMD18200T/LF14 for a 200 ms duration?
The peak output current is 6A for a 200 ms duration. - What is the maximum junction temperature for the LMD18200T/LF14?
The maximum junction temperature is 150°C. - Does the LMD18200T/LF14 have thermal shutdown protection?
Yes, the device has thermal shutdown protection at 170°C. - Is the LMD18200T/LF14 compatible with TTL and CMOS inputs?
Yes, it is compatible with both TTL and CMOS inputs. - What is the typical RDS(ON) per switch at 3A for the LMD18200T/LF14?
The typical RDS(ON) per switch at 3A is 0.33Ω. - Does the LMD18200T/LF14 have integrated current sensing feedback?
Yes, it has integrated current sensing feedback. - What are some common applications of the LMD18200T/LF14?
Common applications include DC and stepper motor drives, position and velocity servomechanisms, factory automation, and numerically controlled machinery. - How does the LMD18200T/LF14 protect against shorted loads?
The device has shorted load protection built-in. - What is the thermal warning flag temperature for the LMD18200T/LF14?
The thermal warning flag temperature is 145°C.
