Datasheet

MAX1946
Single USB Switch with Autoreset and
Fault Blanking in Tiny TDFN
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 5V, C
IN
= 0.1µF, C
OUT
= 1µF, T
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note1)
PARAMETER
SYM B O L
CONDITIONS
MIN TYP MAX
UNITS
V
IN
= 2.7V to 4V 1.6
ON, SEL Input High Level V
IH
V
IN
= 4V to 5.5V 2
V
V
IN
= 2.7V to 4V 0.6
ON, SEL Input Low Level V
IL
V
IN
= 4V to 5.5V 0.8
V
ON, SEL Input Leakage Current V
ON
, V
SEL
= 0 or V
IN
, T
A
= +25°C -1 +1 µA
FAULT Output Low Voltage V
OL
I
SINK
= 1mA, V
IN
= 2.7V 0.5 V
FAULT Output High Leakage
Current
V
IN
= V
FAULT
= 5.5V 1 µA
OUT Output Current Autoreset
Mode
In latched off state, V
OUT
= 0 102545mA
OUT Autoreset Threshold In latched off state, V
OUT
rising 0.4 0.5 0.6 V
OUT Autoreset Blanking Time In latched off state, V
OUT
> 0.5V 10 20 35 ms
ELECTRICAL CHARACTERISTICS
(V
IN
= 5V, C
IN
= 0.1µF, C
OUT
= 1µF, T
A
= -40°C to +85°C, unless otherwise noted.) (Note1)
PARAMETER
SYM B O L
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage Range V
IN
2.7 5.5 V
V
IN
= 5, T
A
= +25°C 90
V
IN
= 5V 110Switch On-Resistance R
ON
V
IN
= 3.3V 125
mΩ
Standby Supply Current Switch disabled 10 µA
Quiescent Supply Current I
IN
Switch enabled, I
OUT
= 0 60 µA
OUT Off-Leakage Current I
LKG
S w i tch d i sabl ed , V
OU T
= 0, T
A
= - 40°C to + 25°C
1µA
Undervoltage Lockout Threshold
V
ULVO
Rising edge, 3% hysteresis 2.3 2.7 V
Continuous Load Current
500
mA
Continuous Current Limit I
LIM
V
IN_
- V
OUT
= 0.5V 0.6 1.3 A
Short-Circuit Current Limit I
SC
V
OUT
= 0 (I
OUT
pulsing) 0.8 1.6 A
PK
Continuous Current-Limit
Blanking Timeout Period
From continuous current-limit condition to
FAULT asserted
10 35 ms
Short-Circuit Blanking Timeout
Period
From short-circuit current-limit condition to
FAULT asserted
7.5
35.0
ms
Turn-On Delay t
ON
R
OUT
= 10Ω. Time from ON to 10% of V
OUT
.
Does not include rise time.
0.25 1.50
ms