Datasheet

MAX1823/MAX1823A/MAX1823B/MAX1823H
Dual USB Switch with Fault
Blanking and Autoreset
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Short-Circuit Detect Threshold (Note 1) 1 V
Continuous Current-Limit
Blanking Timeout Period
From continuous current-limit condition to
FAULT_ assertion
10 20 35 ms
Short-Circuit Blanking Timeout
Period
From short-circuit current-limit condition to
FAULT_ assertion
7.5 18 35.0 ms
MAX1823/MAX1823H 0.5 1.2 4.0
Turn-On Delay t
ON
R
OUT_
= 10kΩ,
does not include
rise time
MAX1823A/MAX1823B 0.3 0.8 3.0
ms
Output Rise Time t
RISE
R
OUT_
= 10Ω, from 10% to 90% of V
OUT_
2.5 ms
R
OUT
_ = 10Ω, does not include fall time (from
ON_ (MAX1823) or ON_ (MAX1823H)
deasserted to V
OUT
= 90% of V
IN_
)
0.8 3.0
Turn-Off Delay from ON t
OFF
R
OUT
_ = 10Ω, does not include fall time (from
ON_ (MAX1823A) or ON_ (MAX1823B)
deasserted to V
OUT
= 90% of V
IN_
)
0.1 3.0
ms
R
OUT_
= 10Ω, from 90% to 10% of V
OUT_
(MAX1823/MAX1823H)
2.5
Output Fall Time t
FALL
R
OUT_
= 10Ω, from 90% to 10% of V
OUT_
(MAX1823A/MAX1823B)
2.8
ms
Thermal-Shutdown Threshold 15
o
C hysteresis +160
o
C
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
ON_ = GND or IN_ (MAX1823/MAX1823A),
ON_ = GND or IN_ (MAX1823B/MAX1823H)
-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 30 45 mA
Autoreset Threshold In latched-off state, rising 0.4 0.5 0.6 V
Autoreset Blanking Time In latched-off state, V
OUT_
> 0.5V 10 20 35 ms
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
IN
= V
INA
= V
INB
= 5V, ONA = ONB = GND (MAX1823/MAX1823A), ONA = ONB = IN (MAX1823B/MAX1823H),
T
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)