L295| Datasheet

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L295
DUAL SWITCH-MODE SOLENOID DRIVER
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HIGH CURRENT CAPABILITY (up to 2.5A per channel) HIGH VOLTAGE OPERATION (up to 46V for power stage) HIGH EFFICIENCY SWITCHMODE OPERATION REGULATED OUTPUT CURRENT (adjustable) FEW EXTERNAL COMPONENTS SEPARATE LOGIC SUPPLY THERMAL PROTECTION 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.
MULTIWATT15 ORDERING NUMBER: L295

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DESCRIPTION The L295 is a monolithic integrated circuit in a 15 -lead Multiwatt package; it incorporates all the functions for direct interfacing between digital circuitry and inductive loads. The L295 is designed to accept standard microprocessor logic levels at the inputs and can drive 2 solenoids. The output current is completely conBLOCK DIAGRAM

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9 +VSS +VS 10 VOLTAGE REGULATOR THERMAL SHUTDOWN

OSCILLATOR 1 +VS

1 H2 DRIVER D3 R2 D4 L2 14 L2 DRIVER RS2 13 12 11 Vin2 7 EN 6 Vin1
D03IN1503

H1 DRIVER 2 R1 LOGIC CIRCUITS Q S R FF2 R FF2 S L1 DRIVER 4 5 8 VREF1 Q LOGIC CIRCUITS L1 3 D2 D1

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VREF2

October 2003

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L295 DATASHEET