L295

L295 DUAL SWITCH-MODE SOLENOID DRIVER s HIGH CURRENT CAPABILITY (up to 2.5A per channel) s HIGH VOLTAGE OPERATION (up to 46V for power stage) s HIGH EFFICIENCY SWITCHMODE t(s) OPERATION s REGULATED OUTPUT CURRENT uc (adjustable) d s FEW EXTERNAL COMPONENTS ro s SEPARATE LOGIC SUPPLY P s THERMAL PROTECTION olete DESCRIPTION s The L295 is a monolithic integrated circuit in a 15 b -lead Multiwatt® package; it incorporates all the O functions for direct interfacing between digital cir- cuitry and inductive loads. t(s) The L295 is designed to accept standard micro- processor logic levels at the inputs and can drive c 2 solenoids. The output current is completely condu BLOCK DIAGRAM MULTIWATT15 ORDERING NUMBER: L295 trolled by means of a switch-ing technique allowing very efficient operation. Furthermore, it includes an enable input and dual supplies (for interfacing with peripherals running at a higher voltage than the logic). The L295 is particularly suitable for applications such as hammer driving in matrix printers, step motor driving and electromagnet controllers. Obsolete Pro +VSS 10 VOLTAGE REGULATOR THERMAL SHUTDOWN C R 9 OSCILLATOR 1 +VS H2 DRIVER 1 +VS H1 DRIVER D3 15 R2 D4 L2 14 LOGIC CIRCUITS R Q FF2 S R Q FF2 S LOGIC CIRCUITS 2 D1 R1 D2 L1 3 L2 DRIVER L1 DRIVER RS2 13 4 VREF2 12 5 VREF1 11 7 6 8 Vin2 EN Vin1 D03IN1503 October 2003 1/7 L295 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VS Supply voltage 50 V V...