MAX13037 Datasheet, PDF (8/22 Pages) Maxim Integrated Products – Automotive Contact Monitor and Level Shifters with LDO Regulator

Automotive Contact Monitor and
Level Shifters with LDO Regulator
Typical Operating Characteristics (continued)
(BAT = +14V, SD = V_BAT, R_WET = 61kΩ, R_HYST = 90kΩ, C_TDEB = 4700pF, C_TD = 4700pF, T_A = +25°C, unless otherwise noted.)
SWITCHING THRESHOLD vs. TEMPERATURE
10
ADJUSTABLE HYSTERESIS OFF
9
8
V_{IN_} RISING
7
V_{IN_} FALLING
6
5
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
SWITCHING THRESHOLD vs. V_BAT
20
ADJUSTABLE HYSTERESIS OFF
15
V_{IN_} RISING
10
INPUT WAVEFORM IN SCAN MODE
(SCAN MODE, WTOFF = WEN = 0, WEND = 1)
SCANNING PERIOD = 2ms
INPUT SWITCH OPEN
V_{IN_}
5V/div
5
V_{IN_} FALLING
0
6
10
14
18
22
26
V_BAT (V)
400μs/div
DEBOUNCE TIME vs. TEMPERATURE
60
58
56
54
52
50
48
46
44
42
40
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
DEBOUNCE TIME vs. BAT VOLTAGE
51
50
49
48
47
6
10
14
18
22
26
V_BAT (V)
DEBOUNCE TIME vs. C_TDEB
120
100
80
60
40
20
0
0 2000 4000 6000 8000 10,000
C_TDEB (pF)
V_LO OUTPUT VOLTAGE vs. TEMPERATURE
5.5
5.0
4.5
V_LO OUTPUT VOLTAGE vs. LOAD CURRENT
5.5
5.0
4.5
MAX13037
4.0
4.0
3.5
3.0
3.5
MAX13038
2.5
3.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
2.0
0
50
100
150
200
LOAD CURRENT (mA)
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