TLE5250 datasheet(3/22 Pages) SIEMENS

Part #	TLE5250

Description	2.5-A High Performance Smart Power Stepper-Motor Driver with Diagnostic Interface

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Manufacturer	SIEMENS [Siemens Semiconductor Group]

Direct Link	http://www.siemens.com/

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3 / 22 page

TLE 5250

Semiconductor Group

3

1998-02-01

Pin Definitions and Functions

Pin No.

Symbol

Function

1

DIAG

Open-drain diagnostics output

2

PH

Input for determining source/sink on outputs Q1 and Q2; when

Enable = Low, this pin serves as clock input for reading out

diagnostics

3

EN

Input for activating or turning off device (all output transistors

turned off); Enable High = output active, Enable

Low = diagnostics

4, 12

VS

Supply voltage of IC

5, 6

Q1

Power output with integrated free-wheeling diodes

7, 9

Sense

Actual-current output: shared, open-source output of sink

transistors

8

GND

Ground

10, 11

Q2

Power output with integrated free-wheeling diodes

13

RS

Determines turning back on of sink transistor by internally

driven, external RC element or external TTL trigger signal

14

NOM

Input for reference potential (nominal current) for nominal/

actual comparator

15

ACT

Input for actual current for nominal/actual comparator

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