L298, L298HN, L298N, L298P, L298P013TR
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L298
DUAL FULL-BRIDGE DRIVER
. . . . .
OPERATING SUPPLY VOLTAGE UP TO 46 V TOTAL DC CURRENT UP TO 4 A LOW SATURATION VOLTAGE OVERTEMPERATURE PROTECTION LOGICAL "0" INPUT VOLTAGE UP TO 1.5 V (HIGH NOISE IMMUNITY)
Multiwatt15 PowerSO20
DESCRIPTION The L298 is an integrated monolithic circuit in a 15lead Multiwatt and PowerSO20 packages. It is a high voltage, high current dual full-bridge driver designed to accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC and stepping motors. Two enable inputs are provided to enable or disable the device independently of the input signals. The emitters of the lower transistors of each bridge are connected together and the corresponding external terminal can be used for the conBLOCK DIAGRAM
ORDERING NUMBERS : L298N (Multiwatt Vert.) L298HN (Multiwatt Horiz.) L298P (PowerSO20)
nection of an external sensing resistor. An additional supply input is provided so that the logic works at a lower voltage.
Jenuary 2000
1/13
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Comments
This is an old war horse, still valid especially when used with its companion chip, L297.
Yet, may I suggest to give a look to L6208 as well? It includes both L297 & L298 in the same package with an up to date technology. Advantages are lower parts count, higher efficiency and perhaps a lower price...
L298 is old, sure, but it's still strong!
L298 construction technology is more strong (EMC and noise immunity) than DMOS (L6208) and you can found it into the store near you...probably your newsagent know it and you can easy buy it.
BTW the prices are:
L298 = 3,74 euro
http://it.farnell.com/1589425/industrial-controls-automation/product.us0...
L6208 = 14,20 euro
http://it.farnell.com/1271004/semiconductors-integrated-circuits/product...
Maybe an old war horse is still better than a new trojan horse.
With this integrated monolithic circuit I resolved many problems.
The goal of this project is to create a carrier board for an L298 H-Bridge with 1000mf cap, 12 diodes, a terminal block for power and two motors, and a header for interfacing with a microcontroller. The board is based on a simple L298 H-Bridge design by Clay Timmons.
http://www.dprg.org/projects/1998-04a/
This Step motor controller uses the L297 and L298N driver combination; it can be used as stand alone or controlled by microcontroller. It is designed to accept step pulses at up to 25,000 per second. An on-board step pulse generator can be used if desired (40-650 pps range). Single supply operation is standard
http://www.elecfree.com/electronic/stepper-motor-driver-using-l298-and-l297/
Stepper Motors are an alternative to DC motors. They offer something that DC motors don't, reliability. Their movement can be closely tracked by keeping count of how many times you step the motor.
http://www.pyroelectro.com/tutorials/l298_stepper/index.html