Datasheet
MAX1823/MAX1823A/MAX1823B/MAX1823H
Dual USB Switch with Fault
Blanking and Autoreset
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
IN
= V
IN
_ = V
ON
_ = 5V (MAX1823B/MAX1823H); V
IN
= V
IN
_ = 5V, ON_ = GND (MAX1823/MAX1823A), T
A
= -40°C
to +85°C, unless otherwise noted.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Logic Input High Voltage V
IN_
= 4V to 5.5V 2 V
Logic Input Low Voltage V
IN_
= 4V to 5.5V 0.8 V
Logic Input Current V
ON_
= 0V or V
IN_
-1 +1 µA
FAULT_ Output Low Voltage I
SINK
= 1mA, V
IN_
= 4V 0.4 V
FAULT_ Output High Leakage
Current
V
IN_
= V
FAULT_
= 5.5V 1 µA
Autoreset OUT_Current In latched-off state, V
OUT_
= 0V 10 50 mA
Autoreset Threshold In latched-off state, rising 0.4 0.6 V
Autoreset Blanking Time In latched-off state, V
OUT_
> 0.5V 10 35 ms
Note 1: The output voltage at which the device transitions from short-circuit current limit to continuous current limit.
Note 2: Specifications to -40°C are guaranteed by design, not production tested.
Note 3: Reverse current (current from OUT_ to IN_) is blocked when disabled.
Note 4: Forward current (current from IN_ to OUT_) is internally limited. Reverse current, from OUT_ to IN_, is not limited when the
device is enabled and must be kept below 1.5A
RMS
to prevent permanent device damage. When the MAX1823A/MAX1823B
are disabled, the switch turns off and reverse current is internally blocked.
Typical Operating Characteristics
(Circuit of Figure 1, V
IN
= V
INA
= V
INB
= 5V, ON_ = GND (MAX1823/MAX1823A), ON_ = IN_ (MAX1823B/MAX1823H), T
A
= +25°C,
unless otherwise noted.)
0
18
12
6
24
30
36
42
48
54
60
021 3456
QUIESCENT CURRENT
vs. INPUT VOLTAGE
MAX1823 toc01
INPUT VOLTAGE (V)
QUIESCENT CURRENT (µA)
45
47
51
49
53
55
-40 10-15 35 60 85
QUIESCENT CURRENT
vs. TEMPERATURE
MAX1823 toc02
TEMPERATURE (°C)
QUIESCENT CURRENT (µA)
V
IN
_
=
5.5V
V
IN
_
=
4.5V
V
IN
_
=
5V
2.5
2.7
3.1
2.9
3.3
3.5
-40 10-15 35 60 85
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX1823 toc03
TEMPERATURE (°C)
SHUTDOWN SUPPLY CURRENT (µA)
ON_ = IN_ (MAX1823/MAX1823A)
ON_ = GND (MAX1823B/MAX1823H)