Digilent PmodHB2 User Manual

DDiiggiilleenntt PPmmooddHHBB22™™ 11AA HH-

®

-

BBrriiddggee BBooaarrdd RReeffeerreennccee MMaannuua

Revision: 04/12/05

all

Overview

The Digilent PmodHB2 1A H-Bridge Board (the
HB2™) can drive two motors independently
with up to 1A of current and voltage from 4.5V
to 12V.

Features include:

• dual 1A H-bridges

• 4.5V to 12V supply voltage

• screw terminals blocks for power

supply and motor connections

• logic level inputs

• industry standard TI SN754410 motor

driver chips

• a 6-pin header.

Functional Description

The HB2 is based on the Texas Instruments
SN754410, a dual H-bridge driver with bi­directional drive currents.

Screw terminal blocks provide easy
connections to motor leads and power
supplies. All control input signals are
compatible with TTL and CMOS logic levels,
so the HB2 can be driven from any system
board.

The HB2 has ample capacitance to minimize
voltage drop when motor phases are switched
on. This allows motors to use power from the
same 6-pin cable that carries motor control
signals.

The HB2 has a 6-pin header for easy
connection to a Digilent system board. Some
system boards, like the Digilent Pegasus
board, have a 6-pin header that can connect to
the HB2 with a 6-pin cable. To connect the
HB2 to other Digilent system boards, a Digilent

DIR

EN

Texas Instruments

Modular Interface Board (MIB) and a 6-pin cable
may be needed. The MIB plugs into the system
board, and the cable connects the MIB to the
HB2.

Digilent also produces an H-bridge board that
handles higher current and voltage, the Digilent
PmodHB1™ 5A H-Bridge Board. For more
information see, www.digilentinc.com

For more information about the TI SN754410
motor chip, see the corresponding Texas
Instruments data sheet at www.ti.com

SN754410

www.digilentinc.com

215 E Main Suite D | Pullman, WA 99163

[phone] Voice and Fax

Vcc Motor

Motor

GND

HB2 Circuit Diagram

.

.

Doc: 502-052 page 1 of 1

Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners.