Rainbow Electronics MAX1563 User Manual
Page 2
MAX1562/MAX1562H/MAX1563
Programmable 4A USB Current-Limited
Switches with Autoreset and Fault Blanking
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.)
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.
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 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
PARAMETER
SYM B O L CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
V
IN
4.0
5.5
V
Switch On-Resistance
R
ON
26
50
m
Ω
Standby Supply Current
Switch disabled
3
10
µA
Quiescent Supply Current
I
IN
Switch enabled, I
OUT
= 0
40
80
µA
OUT Off-Leakage Current
I
LKG
Switch disabled, V
OUT
= 0
0.02
10
µA
Undervoltage-Lockout Threshold
V
UVLO
Rising edge, 3% hysteresis
2.9
3.4
3.8
V
MAX1563
1
4
Continuous Current-Limit Adjust
Range
MAX1562/MAX1562H
1
3
A
R
ISET
= 4.22k
Ω (MAX1563 only)
3.2
4
4.8
R
ISET
= 5.76k
Ω
2.4
3
3.6
R
ISET
= 8k
Ω
1.7
2.1
2.6
Continuous Current Limit
I
LIM
V
IN
- V
OUT
= 0.5V
R
ISET
= 12k
Ω
1.1
1.4
1.7
A
4.9
A(peak)
R
ISET
= 4.22k
Ω (MAX1563 only)
1.6
A(RMS)
2.5
3.6
4.7
A(peak)
R
ISET
= 5.76k
Ω
1.4
A(RMS)
1.2
1.7
2.3
A(peak)
Short-Circuit Current Limit
I
LIM
V
OUT
= 0,
I
OUT
pulsing
R
ISET
= 12k
Ω
0.4
A(RMS)
Short-Circuit Detect Threshold
(Note 1)
1
V
Continuous Current-Limit
Blanking Timeout Period
From continuous current-limit condition to
FAULT asserted
10
20
35
ms
Short-Circuit Blanking Timeout
Period
From short-circuit current-limit condition to
FAULT asserted
7.5
18
35
ms
Turn-On Delay
t
ON
R
OUT
= 2
Ω, C
OUT
= 4.7µF
(from ON to 10% of V
OUT
)
0.5
1.2
4.0
ms
Output Rise Time
t
RISE
R
OUT
= 2
Ω, C
OUT
= 4.7µF
(from 10% to 90% of V
OUT
)
2.5
ms
Turn-Off Delay
t
OFF
R
OUT
= 2
Ω, C
OUT
= 4.7µF
(from ON to 90% of V
OUT
)
0.1
3
ms