MAX13036 Datasheet, PDF (6/18 Pages) Maxim Integrated Products – Automotive Contact Monitor and Level Shifter

Automotive Contact Monitor
and Level Shifter
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.)
40
30
20
10
0
-10
-20
-30
6
WETTING CURRENT vs. V_BAT
GND-CONNECTED SWITCH
BAT-CONNECTED SWITCH
10
14
18
22
26
V_BAT (V)
60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
30
WETTING CURRENT vs. R_WET
GND-CONNECTED SWITCH
BAT-CONNECTED SWITCH
80 130 180 230 280 330
R_WET (kΩ)
WETTING CURRENT PULSE
(NORMAL MODE, WTOFF = 0, WEN = WEND = 1)
MAX13036 toc03
V_{IN_}
10V/div
INT
2V/div
I_{IN_}
20mA/div
20ms/div
BAT CURRENT vs. TEMPERATURE
(NORMAL MODE)
100
90
80 ADJUSTABLE HYSTERESIS ON
70
60
50
40 ^{ADJUSTABLE HYSTERESIS OFF}
30
20
10
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
TYPICAL IN0 DRIVING
(NORMAL MODE, WTOFF = WEN = WEND = 0)
MAX13036 toc07
f = 5kHz
V_IN0
5V/div
BAT CURRENT vs. TEMPERATURE
(SHUTDOWN MODE)
5
SD = LOW
4
3
2
1
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
TYPICAL IN0 DRIVING
(NORMAL MODE, WTOFF = WEN = WEND = 0)
MAX13036 toc08
f = 100Hz
ADJUSTABLE HYSTERESIS OFF
V_IN0
5V/div
V_DO0
2V/div
40μs/div
V_DO0
2V/div
2ms/div
BAT CURRENT vs. TEMPERATURE
(SCAN MODE)
30
25
SCANNING PERIOD = 2ms
20
15
SCANNING PERIOD = 64ms
10
5
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
HYSTERESIS vs. R_HYST
8
ADJUSTABLE HYSTERESIS ON
7
6
5
4
3
2
1
0
0 200k 400k 600k 800k 1M
R_HYST (Ω)
6 _______________________________________________________________________________________