Pololu MD03A Dual VNH2SP30 Motor Driver Carrier

51050

This Product Has Been Discountinued, This Page Is For Reference Only.

$59.95

USD

Qty
Price
1
$59.95 ea.
2+
$53.95 ea.

If you are looking to drive two high-power motors through one compact unit, these dual VNH2SP30 motor driver carriers are perfect for you. With these boards, it’s easy to get a medium-sized, differential drive robot running in no time.


Description [Hide]

Need to drive some serious current to a set of motors? The compact Pololu MD03A motor driver is designed for some serious power requirements!

Based on the ST Electronics VNH2SP30 motor driver IC, the MD01B offers current sensing, reverse battery protection, and 20kHz PWM frequency operation.

The dual motor driver PCB includes can mount up to three large capacitors for power filtration. Two 10mm radial capacitors may be mounted between the motor driver ICs, and an axial capacitor may be mounted between the ICs and power connections. You don't generally need all three, and two radial capacitors are included with each unit. For applications that require a low profile, a single capacitor can be installed on its side.

VNH2SP30 Specifications:

MOSFET on-resistance (per leg) 19 mΩ
Maximum PWM frequency 20 kHz
Current sense output approximately 0.13 volts per amp
Over-voltage shutoff could be as low as 16 V (19 V typical)
Time to overheat at 20 A* 35 seconds
Time to overheat at 15 A* 150 seconds
Current for infinite run time* 14 A

 

*Typical results with 100% duty cycle at room temperature.

Real-world power dissipation considerations

This motor driver has a 30A maximum current rating, but can overheat at lower current levels. For maximum power transfer, you will have to keep the motor driver cool with a heat sink or fan. Tests show that we were able to deliver short durations (on the order of milliseconds) of 30 A and several seconds of 20 A without overheating. At 6 A, the chips gets just barely noticeably warm to the touch. For high-current installations, the motor and power supply wires should also be soldered directly instead of going through the supplied terminal blocks, which are rated for up to 15 A.

Unlike other motor controllers that have a "surge" rating, these motor drivers have over-current protection that can kick-in at levels between 30 and 45A. Don't count on being able to exceed 30A, but with the 30A continuous current rating, that is something you should not have a problem with!

Reverse-battery protection

The motor driver boards include an N-channel MOSFET for reverse-battery protection. This component keeps the motor driver from destroying itself if the input power is accidentally connected backwards. However, this component does slightly increase the total resistance between your battery and your motor. For slightly improved performance, the MOSFET can be bypassed by connecting the negative battery terminal to the bypass pin. (This terminal will also need to be connected to your logic supply ground). 

Note: An 8-pin male header and two 2-pin terminal blocks are included but not soldered onto the boards. 

Documentation [Hide]

You Might Also Like [Hide]

22170

Servo - Medium

A simple, low-cost, high quality servo for all your mechatronic needs.

$10.95 USD



22140

GWS Modified Servo

Looking for a good continuous-rotation servo? The Grand-Wing Servo GSV0008A is a well proven unit!

$11.95 USD



K SV-UPG1

Solarbotics Sumovore Baseplate Upgrade

For owners of Sumovores purchased prior to May 2005, this kit solidifies your Sumovore with a powder-coated steel baseplate!

$6.95 USD



TLED

Tiny LED

These amazing little LEDs glow brilliantly on 10mA, and are still visible on only 3mA current! Available in red, green and yellow.

$1.00 USD



13104-NC

Bulbdial Clock Kit (No Case)

This kit from Evil Mad Science works like an indoor sundial, but with three shadows of different length. Save some money with this version, which doesn't include the acrylic case.

$64.95 USD



MPin10-2mm

Male 10-pin Headers-2mm spacing

With electronics, there's connections, which usually means sockets and pins.This header strip fits into any socket strip designed for Xbees.

$0.57 USD



18320

MK2021-BL Mounting Kit for 20x2 LCD - Black

The MK-2041 Mounting kit will mount most standard 20 character x 2 line display just about anywhere.

$10.50 USD



SWT9

SPDT Snap Lever Switch

This SPDT snap lever switch is modifiable into tactile sensors.

$1.75 USD



15009

12" Servo Extension Cable - Male / Female

Universal connectors fit both Futaba and Hi-Tec/JR(S). Male to female. Very flexible, 12" long 22 AWG stranded wire. Black, red, white silicone rubber insulation.

$3.99 USD



GiftCert100

Gift Certificate - $100.00

$100.00 gift certificate for www.solarbotics.com

$100.00 USD



Currency


Login

Email:

Password:

Remember Me

Forgot Your Password?

Don't Have an Account?
Sign Up!