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參數(shù)資料
| 型號： | E910.36 |
| 廠商： | ELMOS SEMICONDUCTOR AG |
| 英文描述： | Contact monitor (4 * GND & 4 * VBAT, parallel interface) |
| 中文描述： | 聯(lián)系監(jiān)視器（4 *接地 |
| 文件頁數(shù)： | 1/1頁 |
| 文件大?。?/td> | 87K |
| 代理商： | E910.36 |
BUS IC
DC/DC CONVERTER
MOTOR DRIVER IC
RIPPLE COUNTER
72
BLOCK DIAGRAM
Contact monitor (
4
*
GND &
4
*
VBAT, parallel interface)
FEATURES
Supply voltage range VS
5
.
25
to
25
V
Supply voltage range VDD
4
.
75
to
5
.
25
V
Maximum overvoltage protection up to
40
V
Low standby current (typical <
10
μA)
Contact status monitoring by comparison of the
switch resistance with internal reference
High noise immunity
–
40
°C to +
125
oC operating temperature
SO
20
w package
APPLICATION
Automotive electronics
Monitor for mechanical switches
Monitor for interface levels
DESCRIPTION
The IC is developed for automotive applications. It continuously
monitors the status of two groups of switch contacts connected
to GND or VBAT.
The input currents are compared to internal references. The IC is
designed to operate with an external resistor of
1
k Y.
If the switch resistance is less than
1.5
kY the IC will lead into an
active state (‘
1
’ for switches to VBAT and ‘
0
’ for switches to GND).
If the resistance will be more than
9
kY than the IC will switch
to the corresponding inactive state. 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
VDD
VDD
μC
Ref.
OUT7
OUT6
OUT5
OUT4
VS
CH4
CH7
Ref.
CH0
EN
EN
CH3
IN7
IN6
IN5
IN4
IN3
IN2
IN1
IN0
VS
EN
OUT3
OUT2
OUT1
OUT0
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