TLE5204 데이터 시트보기 (PDF) - Siemens AG

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TLE5204

3-A DC Motor Driver

Siemens AG 

TLE 5204

Circuit Description

Input Circuit

The control inputs consist of TTL/CMOS-compatible Schmitt triggers with hysteresis.

Buffer amplifiers are driven by these stages and convert the logic signal into the

necessary form for driving the power output stages.

Output Stages

The output stages form a switched H-bridge. Protective circuits make the outputs short-

circuit proof to ground and to the supply voltage throughout the operating range. Positive

and negative voltage spikes, which occur when switching inductive loads, are clamped

by integrated power diodes.

Functional Truth Table

E1 E2 Q1 Q2 Comments

L L L L Motor brake; both low side transistors turned-ON

L H L H Motor turns clockwise

H L H L Motor turns counterclockwise

H H H H Motor brake; both high side transistors turned-ON

Notes for Output Stage

Symbol

Value

L

Low side transistor is turned-ON

High side transistor is turned-OFF

H

High side transistor is turned-ON

Low side transistor is turned-OFF

Semiconductor Group

3

1998-02-01

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