L294

® L294 SWITCH-MODE SOLENOID DRIVER HIGH VOLTAGE OPERATION (UP TO 50V) HIGH OUTPUT CURRENT CAPABILITY (UP TO 4A) LOW SATURATION VOLTAGE TTL-COMPATIBLE INPUT Multiwatt 11 OUTPUT SHORT CIRCUIT PROTECTION (TO GROUND, TO SUPPLY AND ACROSS THE LOAD) THERMAL SHUTDOWN OVERDRIVING PROTECTION t(s) LATCHED DIAGNOSTIC OUTPUT ORDER CODE : L294 c DESCRIPTION du The L294 is a monolithic switched mode solenoid ro driver designed for fast, high current applications such as hummer and needle driving in printers and P electronic typewriters. Power dissipation is reduced te by efficient switchmode operation. An extra Obsolete Product(s) - Obsole BLOCK DIAGRAM feature of the L294 is a latched diagnostic output which indicates when the output is short circuited. The L294 is supplied in a 11-lead Multiwatt® plastic power package. September 2003 1/8 L294 ABSOLUTE MAXIMUM RATING Symbol Parameter Vs VSS VEN Ip Ptot Tstg, Tj Power Supply Voltage Logic Supply Voltage Enable Voltage Peak Output Current (repetitive) Total Power Dissipation (at Tcase = 75 °C) Storage and Junction Temperature Value Unit 50 V 7 V 7 V 4.5 A 25 W - 40 to 150 °C CONNECTION DIAGRAM (top view) ct(s) - Obsolete Product(s) THERMAL DATA du Symbol Obsolete Pro Rth-j-case Parameter Thermal resistance junction-case Value Unit Max 3 °C/W 2/8 L294 ELECTRICAL CHARACTERISTICS (refer to the test circuit, Vs = 40 V, Vss = 5V, Tamb = 25 °C, unless otherwise specified) Symbol Parameter Test con...