MAX1562_10 Datasheet, PDF (2/14 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
ABSOLUTE MAXIMUM RATINGS
IN, ON, ON, ISET, SEL, OUT to GND .......................-0.3V to +6V
FAULT to GND .............................................-0.3V to (V_IN + 0.3V)
IN to OUT..................................................................-0.3V to +6V
OUT Maximum Continuous Switch Current ............................5A
FAULT DC Current ..............................................................10mA
Continuous Power Dissipation
8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW
12-Pin Thin QFN (4mm x 4mm)
(derate 16.9mW/°C above +70°C) .............................1350mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(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
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 = 0A
Switch disabled, V_OUT = 0V
Undervoltage-Lockout Threshold V_UVLO Rising edge, 3% hysteresis
2.9
Continuous Current-Limit Adjust
MAX1563
1
Range
MAX1562/MAX1562H
1
R_ISET = 4.22kΩ (MAX1563 only) 3.2
Continuous Current Limit
I_LIM
V_IN - V_OUT
= 0.5V
R_ISET = 5.76kΩ
R_ISET = 8kΩ
2.4
1.7
R_ISET = 12kΩ
1.1
R_ISET = 4.22kΩ (MAX1563 only)
Short-Circuit Current Limit
I_LIM
V_OUT = 0V,
I_OUT pulsing
R_ISET = 5.76kΩ
2.5
1.2
R_ISET = 12kΩ
Short-Circuit Detect Threshold
(Note 1)
TYP MAX
5.5
26
50
3
10
40
80
0.02
10
3.4
3.8
4
3
4
4.8
3
3.6
2.1
2.6
1.4
1.7
4.9
1.6
3.6
4.7
1.4
1.7
2.3
0.4
1
Continuous Current-Limit
Blanking Timeout Period
From continuous current-limit condition to
FAULT asserted
10
20
35
Short-Circuit Blanking Timeout
Period
From short-circuit current-limit condition to
FAULT asserted
7.5
18
35
Turn-On Delay
t_ON
R_OUT = 2Ω, C_OUT = 4.7µF
(from ON to 10% of V_OUT)
0.5
1.2
4.0
Output Rise Time
t_RISE
R_OUT = 2Ω, C_OUT = 4.7µF
(from 10% to 90% of V_OUT)
2.5
Turn-Off Delay
t_OFF
R_OUT = 2Ω, C_OUT = 4.7µF
(from ON to 90% of V_OUT)
0.1
3
UNITS
V
mΩ
µA
µA
µA
V
A
A
A(peak)
A(RMS)
A(peak)
A(RMS)
A(peak)
A(RMS)
V
ms
ms
ms
ms
ms
2 _______________________________________________________________________________________