MAX14588 Datasheet, PDF (7/15 Pages) Maxim Integrated Products – 1A Adjustable Overcurrent and Overvoltage Protector with High Accuracy

MAX14588
1A Adjustable Overcurrent and Overvoltage
Protector with High Accuracy
Typical Operating Characteristics (continued)
(C_IN = 1µF, C_OUT = 1µF, T_A = +25°C, unless otherwise noted.)
NORMALIZED ON-RESISTANCE
vs. TEMPERATURE
1.5
1.4
VIN = 32V
1.3
VIN = 24V
1.2
1.1
1.0
0.9
VIN = 12V
0.8
0.7
0.6
0.5
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (ºC)
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
12
10
VIN = 32V
8
6
VIN = 24V
4
2
VIN = 12V
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (ºC)
SWITCH TURN-OFF TIME
vs. TEMPERATURE
50
VIN = 24V
45 _{RL = 24Ω}
40
35
30
25
20
15
10
5
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (ºC)
NORMALIZED CURRENT LIMIT
vs. SUPPLY VOLTAGE
1.05
RSETI = 12kΩ
1.04
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95
0
10
20
30
40
IN VOLTAGE (V)
SHUTDOWN FORWARD CURRENT
vs. TEMPERATURE
0.5
0.4
0.3
0.2
VIN = 32V
0.1
VIN = 24V
VIN = 12V
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (ºC)
NORMALIZED CURRENT LIMIT
vs. TEMPERATURE
1.05
VIN = 24V
1.04
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
0.95
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (ºC)
SWITCH DEBOUNCE TIME
vs. TEMPERATURE
20.0
VIN = 24V
19.5 _{RL = 24Ω}
19.0
18.5
18.0
17.5
17.0
16.5
16.0
15.5
15.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (ºC)
1.2
1.0
0.8
0.6
0.4
0.2
0
0
CURRENT LIMIT vs. RSETI
VIN = 24V
20
40
60
80
RSETI (kΩ)
POWER-UP RESPONSE
MAX14588 toc12
VIN
10V/div
V_OUT
10V/div
20ms/div
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