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Pololu 30A Dual Motor Driver VNH3SP30

List price: £173.54
£115.69
(£138.83 UK, incl VAT) You save: £57.85 (33%)
Price in points: 23138 points
1503-009
24 g
2 item(s)
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The Pololu dual high-power motor driver VNH3SP30 is a dual version of the 1503-007. As with the 1503-007, this dual version incorporates most of the components of the typical application diagram on page 8 of the VNH2SP30 datasheet, including pull-up and current-limiting resistors and a FET for reverse battery protection. (Again the current sense circuit is populated on both versions of the board, but only the VNH2SP30 (see 1503-010) supports current sense.) To keep the number of I/O lines down, the two enable/diagnostic lines on each chip are tied together. All you need to add is a microcontroller or other control circuit to turn the H-Bridges on and off.

In a typical application, the power connections are made on one end of the board, and the control connections are made on the other end. +5 volts must be supplied to the board through the smaller 0.1"-spaced pins; the input voltage is available at those pins as well, but the connection is not intended for currents exceeding a few amps. The diagnostic pins can be left disconnected if you do not want to monitor the fault conditions of the motor drivers. INA and INB control the direction of each motor, and the PWM pins turns the motors on or off. For the VNH2SP30 version, the current sense (CS) pins will output approximately 0.13 volts per amp of output current.

The dual motor driver PCB includes provisions for installing up to three large capacitors to limit disturbances on the main power line. 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. It is generally not necessary to use all three capacitors; two radial capacitors are included with each unit. For applications that require a low profile, a single capacitor can be installed on its side as shown in the 'Additional images' gallery.

Please see 1503-007 for further performance data on the VNH3SP30, VNH2SP30 and the IRFR3707Z.

Note: A 15-pin male header, three 2-pin terminal blocks, and two electrolytic capacitors are included but not soldered onto the boards. No printed documentation is shipped with these items.

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Can I use this to control two brushless motors?

Asked by Josh | 12/01/2015, 14:10 | 1 answer(s)

Please confirm that the Pololu 30A Dual Motor Driver VNH3SP30 is a bidirectional electronic speed controller for 2 independent motors that I can connected to my Pololu Maestro to drive DC brushed motors forward and backward.

Asked by Rodolfo | 15/02/2011, 14:29 | 1 answer(s)

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