E910.41 Datasheet, PDF (1/1 Pages) ELMOS Semiconductor AG – Hall sensor- and contact monitor (8 channel, parallel interface)

BUS IC
DC/DC CONVERTER
MOTOR DRIVER IC
RIPPLE COUNTER
ÿ Hall sensor- and contact monitor (8 channel, parallel interface)
FEATURES
ÿ Supply voltage range VS 5.25 to 25V
ÿ Supply voltage range VDD 4.75 to 5.25V
ÿ Maximum overvoltage protection up to 40V
ÿ Low standby current (typical IS = 13µA)
ÿ Contact status monitoring by comparison of the
switch resistance with internal reference
ÿ Inputs are current limited
ÿ High noise immunity
ÿ Overtemperatur protected
ÿ – 40°C to + 125 ºC operating temperature
ÿ SO20w package
APPLICATION
ÿ Automotive electronics
ÿ Monitor for Hall Sensors
ÿ Monitor for mechanical switches
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.
BLOCK DIAGRAM
VBAT
VS
92
IN 0
IN 1
IN 2
IN 3
IN 4
IN 5
IN 6
IN 7
B
VDD
CH 7
CH 0
Imax
EN
Vref.
EN
OUT 0
OUT 1
OUT 2
OUT 3
OUT 4
OUT 5
OUT 6
OUT 7
VDD
µC
DRIVER IC
I/O IC
PINNING
Pin Name
1
VS
2
IN0
3
IN1
4
IN2
5
IN3
6
IN4
7
IN5
8
IN6
9
IN7
10 EN
11
GND
12
OUT7
13
OUT6
14 OUT5
15
OUT4
16 OUT3
17
OUT2
18 OUT1
19 OUT0
20 VDD
Description
Supply voltage
Input for sensor or switch to GND
Input for sensor or switch to GND
Input for sensor or switch to GND
Input for sensor or switch to GND
Input for sensor or switch to GND
Input for sensor or switch to GND
Input for sensor or switch to GND
Input for sensor or switch to GND
Chip enable for input current and
tristate outputs, active low
Ground
TTL compatible tristate data port
TTL compatible tristate data port
TTL compatible tristate data port
TTL compatible tristate data port
TTL compatible tristate data port
TTL compatible tristate data port
TTL compatible tristate data port
TTL compatible tristate data port
Logic supply voltage
SENSOR IC
SENSOR INTERFACE IC
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
E910.41
PACKAGE
VS
1
IN0
2
IN1
3
IN2
4
IN3
5
IN4
6
IN5
7
IN6
8
IN7
9
EN
10
20
VDD
19
OUT0
18
OUT1
17
OUT2
16
OUT3
15
OUT4
14
OUT5
13
OUT6
12
OUT7
11
GND
Note ELMOS Semiconductor AG (below ELMOS) reserves the right to make changes to the product contained in this publication without notice. ELMOS assumes no responsibility for the use of any
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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elmos product catalog june 2005
93