BUS IC

DC/DC CONVERTER

MOTOR DRIVER IC

RIPPLE COUNTER

92

BLOCK DIAGRAM

DRIVER IC

I/O IC

SENSOR IC

SENSOR INTERFACE IC

93

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circuits described herein, conveys no licence under any patent or other right, and makes no representation that the circuits are free of patent infringement. While the information in this publication

has been checked, no responsibility, however, is assumed for inaccuracies. ELMOS does not recommend the use of any of its products in life support applications where the failure or malfunction of

the product can reasonably be expected to cause failure of a life-support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications.

Copyright © 2005 ELMOS Reproduction, in part or whole, without the prior written consent of ELMOS, is prohibited.

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PINNING

PACKAGE

ÿ Hall sensor- and contact monitor (8 channel, parallel interface)

E910.41

FEATURES

switch resistance with internal reference

APPLICATION

DESCRIPTION

The IC is developed for automotive applications. It continuously

monitors up to 8 hall sensors or switches to GND.

The input currents are compared to internal references. Currents

exceeding –11mA will force a logic ‘0’ at the output, while currents

higher than -6mA will result in a logic ‘1’ at the output.

If the IC is used to monitor switches, the switch resistance must

be higher than 5kÝ for ‘1’ and less than 330Ý for ‘0’ at the out-

put.

The input current as well as the tristate driver are activated with

the enable pin. Due to the tristate outputs the IC can be used in

bus configuration.

VBAT

µC

VDD

VDD

IN 0

IN 1

IN 2

IN 3

IN 4

IN 5

IN 6

IN 7

Vref.

OUT 0

OUT 1

OUT 2

OUT 3

OUT 4

OUT 5

OUT 6

OUT 7

VS

EN

CH 0

EN

Imax

CH 7

B

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

VS

IN0

IN1

IN2

IN3

IN4

IN5

IN6

IN7

EN

VDD

OUT0

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

GND

Pin

Name

Description

1

VS

Supply voltage

2

IN0

Input for sensor or switch to GND

3

IN1

Input for sensor or switch to GND

4

IN2

Input for sensor or switch to GND

5

IN3

Input for sensor or switch to GND

6

IN4

Input for sensor or switch to GND

7

IN5

Input for sensor or switch to GND

8

IN6

Input for sensor or switch to GND

9

IN7

Input for sensor or switch to GND

10

EN

Chip enable for input current and

tristate outputs, active low

11

GND

Ground

12

OUT7

TTL compatible tristate data port

13

OUT6

TTL compatible tristate data port

14

OUT5

TTL compatible tristate data port

15

OUT4

TTL compatible tristate data port

16

OUT3

TTL compatible tristate data port

17

OUT2

TTL compatible tristate data port

18

OUT1

TTL compatible tristate data port

19

OUT0

TTL compatible tristate data port

20

VDD

Logic supply voltage

HALIOS® optical switch

HALIOS® Micromouse

ÿ Hall sensor interface 8*, par. out

Hall sensor interface 6*, ser. out

PIR controller

Hall sensor interface 4*, par. out