Image L298
型号: L298
厂商: STMicroelectronics STMicroelectronics
标准:
分类: 半导体
描述: dual full-bridge driver
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L298  
DUAL FULL-BRIDGE DRIVER  
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OPERATINGSUPPLY VOLTAGEUP 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)  
DESCRIPTION  
PowerSO20  
Multiwatt15  
The L298 is an integratedmonolithic circuit in a 15-  
lead Multiwatt and PowerSO20 packages. It is a  
high voltage,high current dual full-bridge driver de-  
signedto acceptstandardTTLlogiclevelsanddrive  
inductive loads such as relays, solenoids, DC and  
steppingmotors. Two enableinputsare providedto  
enableordisablethe deviceindependentlyofthein-  
put signals. The emitters of the lower transistors of  
each bridge are connected togetherand the corre-  
spondingexternalterminal can be used for thecon-  
ORDERING NUMBERS : L298N (Multiwatt Vert.)  
L298HN (Multiwatt Horiz.)  
L298P (PowerSO20)  
nectionofanexternalsensingresistor.Anadditional  
supplyinput is providedso that the logic works at a  
lower voltage.  
BLOCK DIAGRAM  
Jenuary 2000  
1/13