DUAL FULL BRIDGE DRIVER

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Description

Niveau: Secondaire, Lycée, Terminale
L298 Jenuary 2000 DUAL FULL-BRIDGE DRIVER Multiwatt15 ORDERING NUMBERS : L298N (Multiwatt Vert.) L298HN (Multiwatt Horiz.) L298P (PowerSO20) BLOCK DIAGRAM .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 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- signed 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 in- put signals. The emitters of the lower transistors of each bridge are connected together and the corre- sponding external terminal can be used for the con- nection of an external sensing resistor. An additional supply input is provided so that the logic works at a lower voltage. PowerSO20 ® 1/13

  • current up

  • source current

  • enable switching

  • ttl compatible

  • µs t6

  • vss

  • logic supply


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®TOOPTEARLA TDICN GC USRURPEPNLTY  VUPO LTTOA 4G EA  UP TO 46 VLOW SATURATION VOLTAGEOVERTEMPERATURE PROTECTION.(HIGH NOISE IMMUNITY)OLIGAC L0" "NIUP TOVTLGA EPU OT .1 5VDESCRIPTIONThe L298 is an integrated monolithic circuit in a 15-lead Multiwatt and PowerSO20 packages. It is ahigh voltage, high current dual full-bridge driver de-signed to accept standard TTL logic levels and driveinductive loads such as relays, solenoids, DC andstepping motors. Two enable inputs are provided toenable or disable the device independently of the in-put signals. The emitters of the lower transistors ofeach bridge are connected together and the corre-sponding external terminal can be used for the con-BLOCK DIAGRAMJenuary 2000892LDUAL FULL-BRIDGE DRIVERMultiwatt15PowerSO20ORDERING NUMBERS : L298N (Multiwatt Vert.)                                             LL229988PH (NP (oMwueltriSwOat2t 0)Horiz.)nection of an external sensing resistor. An additionalsupply input is provided so that the logic works at alower voltage.31/1