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36V-Capable Overvoltage Protector with
Regulated Output Voltage
ELECTRICAL CHARACTERISTICS (continued)
(V IN = +2.2V to +36V, T A = -40 N C to +85 N C, unless otherwise noted. Typical values are at V IN = +5.0V and T A = +25 N C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TIMING CHARACTERISTICS (Note 4)
Input Debounce Time
ACOK Time
Turn-on Time During Soft-Start
Overvoltage Turn-Off Time
t DEB
t ACOK
t ON
t OFF
V IN_MIN < V IN < V OVLO until charge pump
turns on, see Figure 1
V IN_MIN < V IN < V OVLO to ACOK low until
charge pump turns on, see Figure 1
R LOAD = 100 I , C LOAD = 1 F F, V OUT =
20% of V IN to 80% of V IN , see Figure 1
V IN > V OVLO to V OUT = 80% of V PROV ,
R LOAD = 100 I , see Figure 1
10
20
20
40
48
1
35
70
ms
ms
F s
F s
THERMAL PROTECTION
Thermal Shutdown
Thermal Hysteresis
T SHDN
T HYST
150
20
N C
N C
Note 2: All devices are 100% production tested at T A = +25 N C. Limits over the operating temperature range are guaranteed by
design and not production tested.
Note 3: Thermally limited, guaranteed by design, and not production tested.
Note 4: In linear mode, as I OUT increases, the OUT voltage drops due to a voltage across Q1 (see Functional Diagram ).
Note 5: All timing characteristics are measured using 20% and 80% levels unless otherwise specified.
IN
V OVLO
V PROV
MIN
t OFF
t DEB
OUT
I OUT
EN
V PROV
t DEB
t ON
t DEB
t ON
t ACOK
t ACOK
t DEB
ACOK
Figure 1. Enable/Select Time
3
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