Datasheet

MAX13036
Automotive Contact Monitor
and Level Shifter
6 _______________________________________________________________________________________
Typical Operating Characteristics
(V
L
= +3.3V, BAT = +14V, SD = V
L
, R
WET
= 61kΩ, R
HYST
= 90kΩ, C
TDEB
= 4700pF, T
A
= +25°C, unless otherwise noted.)
WETTING CURRENT vs. V
BAT
V
BAT
(V)
WETTING CURRENT (mA)
MAX13036 toc01
6 1014182226
-30
-20
-10
0
10
20
30
40
GND-CONNECTED SWITCH
BAT-CONNECTED SWITCH
WETTING CURRENT vs. R
WET
R
WET
(kΩ)
WETTING CURRENT (mA)
MAX13036 toc02
30 80 130 180 230 280 330
-60
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
GND-CONNECTED SWITCH
BAT-CONNECTED SWITCH
WETTING CURRENT PULSE
(NORMAL MODE, WTOFF = 0, WEN = WEND = 1)
MAX13036 toc03
20ms/div
V
IN_
10V/div
I
IN_
20mA/div
INT
2V/div
BAT CURRENT vs. TEMPERATURE
(NORMAL MODE)
TEMPERATURE (°C)
I
BAT
(μA)
MAX13036 toc04
-40 -25 -10 5 20 35 50 65 80 95 110 125
0
10
20
30
40
50
60
70
80
90
100
ADJUSTABLE HYSTERESIS OFF
ADJUSTABLE HYSTERESIS ON
BAT CURRENT vs. TEMPERATURE
(SHUTDOWN MODE)
TEMPERATURE (°C)
I
BAT
(μA)
MAX13036 toc05
-40 -25 -10 5 20 35 50 65 80 95 110 125
0
1
2
3
4
5
SD = LOW
BAT CURRENT vs. TEMPERATURE
(SCAN MODE)
TEMPERATURE (°C)
I
BAT
(μA)
MAX13036 toc06
-40 -25 -10 5 20 35 50 65 80 95 110 125
0
5
10
15
20
25
30
SCANNING PERIOD = 64ms
SCANNING PERIOD = 2ms
TYPICAL IN0 DRIVING
(NORMAL MODE, WTOFF = WEN = WEND = 0)
MAX13036 toc07
40μs/div
V
IN0
5V/div
V
DO0
2V/div
f = 5kHz
TYPICAL IN0 DRIVING
(NORMAL MODE, WTOFF = WEN = WEND = 0)
MAX13036 toc08
2ms/div
V
IN0
5V/div
V
DO0
2V/div
f = 100Hz
ADJUSTABLE HYSTERESIS OFF
HYSTERESIS vs. R
HYST
R
HYST
(Ω)
HYSTERESIS (V)
MAX13036 toc09
0 200k 400k 600k 800k 1M
0
1
2
3
4
5
6
7
8
ADJUSTABLE HYSTERESIS ON