NEX ROBOTICS LMD18200 User manual

LMD18200 55V, 3A Motor Driver
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LMD18200 55V, 3A Motor Driver
May 2010

LMD18200 55V, 3A Motor Driver
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LMD18200 55V, 3A Motor Driver
Introduction
The LMD18200 is a 55V, 3A Motor Driver designed for motion control applications. It
can handle peak current up to 6A. It also gives out current sensing output. It gives out
thermal warning signal at 1450C and shuts down the device at 1700C. Motor controller
has LED indicators for Power, Direction, Brake, PWM.
Specifications
•Delivers up to 3A continuous output
•Operates at supply voltages up to 55V
•TTL and CMOS compatible inputs
•No “shoot-through” current
•Thermal warning flag output at 145°C
•Thermal shutdown (outputs off) at 170°C
•Internal clamp diodes
•Shorted load protection
•Internal charge pump with external bootstrap capability
•Board has Direction, PWM, Power, Brake indication LEDs
•Board has 20 Pins Box Header for External Interface.

LMD18200 55V, 3A Motor Driver
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Parameters:
Parameter Range
Vcc (Supply voltage) Up to 55V DC
Supply current 3A. continuous at 250C, 6A. peak
PWM frequency 0 to 10KHz
Table 1: Parameters
Logic input Connector Pin Functionality:
Pin
No. Pin Functionality
1. Vcc Input supply up to 55VDC
2. OP1 Motor output 1
3. DIR Direction input
4. BRK Brake input
5. PWM PWM input
6. GND Ground
7. CS Current Sense output: 0.7414V per Amp
8. TF Active low thermal flag output
9. NC
10 OP2 Motor output 2
Table 2: Logic Input Connector Pin Functionality
Current sensing
LMD18200 gives out 337uA per Amp. current. Motor driver board has 2.2K ohm resistor
connected between current sensing output and ground. Because of which LMD 18200
will give 0.7414V per Amp. (2.2K * 337uA).

LMD18200 55V, 3A Motor Driver
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PWM DIR BRAKE Active Output Drivers
H H L Source 1, Sink2
H L L Sink 1, Source 2
L X L Source1, Source 2
H H H Source1, Source 2
H L H Sink1, Sink2
L X H None
Table 3: Logic Truth Table

LMD18200 55V, 3A Motor Driver
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Notice
The contents of this manual are subject to change without notice. All efforts have been
made to ensure the accuracy of contents in this manual. However, should any errors be
detected, NEX Robotics welcomes your corrections. You can send us your queries /
suggestions at
[email protected]
Content of this manual is released under the Creative Commence cc by-nc-sa license. For
legal information refer to: http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode
Product’s electronics is static sensitive. Use the product in static free
environment.
Read the user manuals completely before start using this product
Recycling:
Almost all the part of this product are recyclable. Please send this product to the recycling
plant after its operational life. By recycling we can contribute to cleaner and healthier
environment for the future generations.