MAX1562 Datasheet, PDF (3/12 Pages) Maxim Integrated Products – Programmable 4A USB Current-Limited Switches with Autoreset and Fault Blanking

Programmable 4A USB Current-Limited
Switches with Autoreset and Fault Blanking
ELECTRICAL CHARACTERISTICS (continued)
(V_IN = +5V, C_IN = 1µF, C_OUT = 4.7µF, T_A = 0°C to +85°C, unless otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
Output Fall Time
t_FALL
R_OUT = 2Ω, C_OUT = 4.7µF
(from 90% to10% of V_OUT)
0.8
Thermal-Shutdown Threshold
ON, ON, SEL Input High Level
ON, ON, SEL Input Low Level
ON, ON, SEL Input
Leakage Current
15°C hysteresis
V_IH V_IN = +4V to +5.5V
V_IL V_IN = +4V to +5.5V
+160
2
0.8
-1
+1
FAULT Output Low Voltage
V_OL I_SINK = 1mA, V_IN = +4V
0.4
FAULT Output
High Leakage Current
V_IN = V _FAULT = +5.5V
1
OUT Autoreset Current
OUT Autoreset Threshold
In latched-off state, V_OUT = 0
In latched-off state, OUT rising
10
25
45
0.35
0.5
0.65
OUT Autoreset Blanking Time
In latched-off state, V_OUT > 0.5V
10
20
35
UNITS
ms
°C
V
V
µA
V
µA
mA
V
ms
ELECTRICAL CHARACTERISTICS
(V_IN = +5V, C_IN = 1µF, C_OUT = 4.7µF, T_A = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
Supply Voltage Range
V_IN
4.0
Switch On-Resistance
Standby Supply Current
R_ON
Switch disabled
Quiescent Supply Current
OUT Off-Leakage Current
I_IN
I_LKG
Switch enabled, I_OUT = 0
Switch disabled, V_OUT = 0
UVLO Threshold
V_UVLO Rising edge, 3% hysteresis
2.9
Continuous Current-Limit Adjust
MAX1563
1
Range
MAX1562/MAX1562H
1
Continuous Current Limit
Short-Circuit Current Limit
R_ISET = 4.22kΩ (MAX1563 only) 3.1
I_LIM
V_IN - V_OUT
= 0.5V
R_ISET = 5.76kΩ
R_ISET = 8kΩ
2.3
1.6
R_ISET = 12kΩ
1.0
I_LIM
V_OUT = 0, ^RISET ^{= 5.76kΩ}
I_OUT pulsing _{RISET = 12kΩ}
2.4
1.1
Continuous Current-Limit
Blanking Timeout Period
From continuous current-limit condition to
FAULT asserted
10
Short-Circuit Blanking Timeout
Period
From short-circuit current-limit condition to
FAULT asserted
7.5
TYP MAX UNITS
5.5
V
50
mΩ
10
µA
80
µA
10
µA
3.8
V
4
A
3
4.9
3.7
A
2.7
1.8
4.8
A(peak)
2.4
35
ms
35
ms
_______________________________________________________________________________________ 3