Roboteq offers a range of dual-channel DC motor controllers. All our products share a common technology platfom and differ mostly in current handling range and the type of enclosure. The table below shows the differences between the various product families. Each family includes further variant that you can explore by clicking on the magnifier icon.

	HDC2450	AX25/2850	AX3500	AX1500	AX500
Power Stage
Operating Voltage	9 to 50V	11 to 40V			8-24V
Number of Channels	2 motor channels. (single channel, double current versions available)
Max Current	2 x 120A		2 x 60A	2 x 30A	2 x 15A
Surge Current	>250A			>150A	>50A
Current Limiting	User presettable
ON Resistance	3 mOhm	5 mOhm (2.5 mOhm HE version)	5 mOhm	10 mOhm	100 mOhm
Synchronous Rectification	Yes - Allows regenerative braking				No
Temperature protection	Automated power output reduction starting at 70o C heat sink temperature
Voltage protection	Programmable Levels	Output shut off below 12V and above 43V			Shut off below 11V
Command
R/C Inputs	1.0ms - 1.5ms center - 2ms, Adjustable
Serial Interface	RS232. 115Kb	RS232. 9600 bauds
USB Interface	Yes. 12Mbit/s	No
Analog Interface	0V - 5V programmable range	0V - 2.5V center - 5V
Input Corrections	Ch1 & Ch2 mixing for tank steering. Programmable deadband. Exponent & Logarithmic command curves.
Input/Outputs
Optical Encoder Inputs	Yes	Standard on AX2850	Yes	Optional	-
RC Ouputs	-	-	8 pulse outputs	-	-
Analog Inputs	up to 11 inputs, 10-bit resolution	4 inputs, 8-bit resolution
Digital Outputs	8 output, 24V 1.5A max	1 output, 24V 1.5A max			1 out, 24V 100mA max
Digital Inputs	up to 20	up to 3
5V Supply Output	Yes. For Radio or other devices
Operating Modes
Open Loop Speed	Forward & Reverse Speed Control. Separate or Mixed
Closed Loop Speed	Analog or Encoder feedback			Analog Tach feedback
Position Mode	Analog or Encoder feedback			Analog feedback
Controller Configuration	Jumper-less using PC utility
Physical
Enclosure	Extruded aluminum enclosure		Unenclosed, board level
	HDC2450	AX25/2850	AX3500	AX1500	AX500