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L295

October 2003

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HIGH CURRENT CAPABILITY (up to 2.5A per

channel)

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HIGH VOLTAGE OPERATION (up to 46V for

power stage)

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HIGH EFFICIENCY SWITCHMODE

OPERATION

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REGULATED OUTPUT CURRENT

(adjustable)

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FEW EXTERNAL COMPONENTS

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SEPARATE LOGIC SUPPLY

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THERMAL PROTECTION

DESCRIPTION

The L295 is a monolithic integrated circuit in a 15

-lead Multiwatt® package; it incorporates all the

functions for direct interfacing between digital cir-

cuitry and inductive loads.

The L295 is designed to accept standard micro-

processor logic levels at the inputs and can drive

2 solenoids. The output current is completely con-

trolled by means of a switch-ing technique allow-

ing 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

DUAL SWITCH-MODE SOLENOID DRIVER

BLOCK DIAGRAM

H1

DRIVER

H2

DRIVER

THERMAL

SHUTDOWN

VOLTAGE

REGULATOR

EN

OSCILLATOR

L2

DRIVER

L1

DRIVER

LOGIC

CIRCUITS

LOGIC

CIRCUITS

Q

1

15

1

10

9

2

3

4

5

8

14

13

12

1176

Q

SS

RR

FF2

FF2

R2

D4

R1

D2

C

R

D3

L2

D1

L1

D03IN1503