105990007 Seeed Studio

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) DESCRIPTION Multiwatt15 PowerSO20 The L298 is an integrated monolithic circuit in a 15- lead Multiwatt and PowerSO20 packages. It is a high voltage, high current dual full-bridge driver de- ORDERING NUMBERS : L298N (Multiwatt Vert.) signedto acceptstandardTTL logic levels anddrive L298HN (Multiwatt Horiz.) inductive loads such as relays, solenoids, DC and L298P (PowerSO20) steppingmotors. Two enableinputs are providedto enableor disablethe deviceindependentlyof thein- nectionofanexternalsensingresistor.Anadditional put signals. The emitters of the lower transistors of supplyinput is provided so that the logic works at a each bridge are connected togetherand the corre- lower voltage. spondingexternalterminal can be used for the con- BLOCK DIAGRAM Jenuary 2000 1/13L298 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V Power Supply 50 V S V Logic Supply Voltage 7 V SS V ,V Input and Enable Voltage 0.3 to 7 V I en I Peak Output Current (each Channel) O 3 A Non Repetitive (t = 100s) 2.5 A Repetitive (80% on 20% off; t = 10ms) on 2 A DC Operation V Sensing Voltage 1 to 2.3 V sens P 25 W tot Total Power Dissipation (T =75C) case T Junction Operating Temperature 25 to 130 C op T ,T Storage and Junction Temperature 40 to 150 C stg j PIN CONNECTIONS (top view) 15 CURRENT SENSING B 14 OUTPUT 4 13 OUTPUT 3 12 INPUT 4 11 ENABLE B 10 INPUT 3 9 LOGIC SUPPLY VOLTAGE V SS Multiwatt15 8 GND 7 INPUT 2 6 ENABLE A 5 INPUT 1 4 SUPPLY VOLTAGE V S 3 OUTPUT 2 2 OUTPUT 1 1 CURRENT SENSING A TAB CONNECTED TO PIN 8 D95IN240A GND 1 20 GND 2 19 Sense B Sense A N.C. N.C. 3 18 Out 1 4 17 Out 4 PowerSO20 Out 2 5 16 Out 3 V 6 15 Input 4 S Input 1 7 14 Enable B Enable A 8 13 Input 3 Input 2 9 12 VSS GND 10 11 GND D95IN239 THERMAL DATA Symbol Parameter PowerSO20 Multiwatt15 Unit R Thermal Resistance Junction-case Max. 3 C/W th j-case R Thermal Resistance Junction-ambient Max. 13 (*) 35 th j-amb C/W (*) Mounted on aluminum substrate 2/13