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MAX1564ETE+T

P1-P3P4-P6P7-P9P10-P11
General Description
The MAX1564 triple, current-limited USB switch comes
in a space-saving, 16-pin, 4mm x 4mm thin QFN pack-
age. Each channel meets all IEC specifications for USB
ports. The device is capable of supplying up to 1.2A
from each output. The MAX1564 has multiple protection
features, including thermal shutdown to limit junction
temperature in case of a prolonged short or overload
condition. Reverse-current protection circuitry blocks
current flow from output to input regardless of the
switch state. The IC has accurate, user-programmable
current-limiting circuitry to protect the input supply
against overload.
Each output of the MAX1564 has short-circuit protec-
tion that latches off the switch when the output is short-
ed for more than 20ms, thereby saving system power.
Auto-restart then tests the shorted output with a 25mA
current to determine when the short is removed, then
automatically restarts the output. Independent open-
drain fault signals notify the microprocessor that the
internal current limit has been reached. A 20ms fault-
blanking feature allows momentary faults to be ignored,
such as those caused when hot-swapping into a
capacitive load. This feature helps avoid issuing false
alarms to the host system. Blanking also suppresses
errant fault signals when the device is powering up.
Applications
USB Ports
USB Hubs
Notebook Computers
Desktop Computers
Docking Stations
Features
♦ Tiny 16-Pin 4mm x 4mm Thin QFN Package
♦ Reverse-Current Blocking
♦ Programmable Current Limit
♦ Auto-Restart when Fault Is Removed
♦ 12% Accurate Current Limit
♦ Up to 1.2A Load Current for Each Output
♦ Thermal-Overload Protection
♦ Built-In 20ms Fault Blanking
♦ Compliant with All USB Specifications
♦ 2.7V to 5.5V Input Supply Range
♦ Independent Fault Indicator Outputs
♦ Active-High/Active-Low Select Pin
♦ ±15kV ESD Protection (with Caps)
MAX1564
Triple 1.2A USB Switch in 4mm x 4mm
Thin QFN
________________________________________________________________
Maxim Integrated Products
1
13
14
15
16
12 4
9101112
ONC
TOP VIEW
ONB
ONA
INA
V
CC
INB
INC
OUTA
GND
OUTB
OUTC
THIN QFN
4mm X 4mm
FLTC
FLTB
SEL
SETI
8
7
6
5
3
MAX1564
FLTA
Pin Configuration
Ordering Information
19-3463; Rev 1; 2/10
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
EVALUATION KIT
AVAILABLE
PART TEMP RANGE PIN-PACKAGE
MAX1564ETE -40°C to +85°C
16 Thin QFN-EP*
4mm x 4mm
*
EP = Exposed pad.
MAX1564
Triple 1.2A USB Switch in 4mm x 4mm
Thin QFN
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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_, OUT_, SEL, V
CC
to GND (Note 1)............-0.3V to +6V
FLT_, SETI to GND .....................................-0.3V to (V
CC
+ 0.3V)
IN_ to OUT_ (when disabled, Note 2) .........................-6V to +6V
IN_ to OUT_ (when enabled, Note 3)....................-1.5A to +2.3A
FLT_ Sink Current................................................................20mA
Continuous Power Dissipation
16-Pin 4mm x 4mm Thin QFN
(derate 16.9mW/°C above +70°C).............................1349mW
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
ELECTRICAL CHARACTERISTICS
(V
IN_
= V
CC
= V
SEL
= V
ON_
= 5V, R
SETI
= 26.1kΩ, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
(Note 4)
Note 1: INA, INB, INC, and V
CC
must be connected together externally.
Note 2: Reverse current (current from OUT_ to IN_) is blocked when disabled.
Note 3: Forward and reverse current are internally limited.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range 2.75 5.50 V
V
IN_
= V
CC
= 5V, T
A
= +25°C 60
V
IN_
= V
CC
= 3V, T
A
= +25°C 80Switch On-Resistance
V
IN_
= V
CC
= 5V, T
A
= -40°C to +85°C 30 100
mΩ
IN Standby Supply Current V
ON_
= 0V 3 7.5 µA
V
ONA
= 5V,
V
ONB
= V
ONC
= 0V
40 80
V
ONA
= V
ON0B
= 5V,
V
ONC
= 0V
55 100
IN Quiescent Supply Current I
OUT_
= 0A
V
ONA
= V
ONB
= V
ONC
= 5V 60 120
µA
OUT_ Off-Leakage Current V
ON_
= 0V, V
OUT_
= 0V 0.02 10 µA
Undervoltage-Lockout Threshold V
IN_
rising, 3% hysteresis 2.2 2.5 2.7 V
Continuous Load Current 1.2 A
R
SETI
= 26.1kΩ 1.20 1.37 1.54
R
SETI
= 39.2kΩ 0.79 0.91 1.03
Current-Limit Threshold
R
SETI
= 60.4kΩ 0.49 0.59 0.68
A
R
SETI
= 26.1kΩ 1.46 1.8 2.20
R
SETI
= 39.2kΩ 1.2
Short-Circuit Current Limit
(Peak Amps)
V
OUT_
= 0V
R
SETI
= 60.4kΩ 0.77
A
R
SETI
= 26.1kΩ 0.55
R
SETI
= 39.2kΩ 0.37
Short-Circuit Current Limit
(RMS Amps)
V
OUT_
= 0V
R
SETI
= 60.4kΩ 0.23
A(RMS)
Short-Circuit/Continuous Current-
Limit Transition Output Voltage
Threshold
(Note 5) 1 V
MAX1564
Triple 1.2A USB Switch in 4mm x 4mm
Thin QFN
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
IN_
= V
CC
= V
SEL
= V
ON_
= 5V, R
SETI
= 26.1kΩ, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
(Note 4)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Current-Limit Fault-Blanking
Timeout Period
From current-limit condition to FLT_ low 10 20 40 ms
Turn-On Delay
R
OUT _
= 10Ω, C
OUT_
= 1µF,
measured from ON_ high to 10% of V
OUT_
0.5 1.5 4.0 ms
Output Rise Time
R
OUT_
= 10Ω, C
OUT
_= 1µF, measured from 10% to 90%
of V
OUT_
3.5 ms
Turn-Off Delay Time
R
OUT_
= 10Ω, C
OUT_
= 1µF, measured from ON_ low to
90% of V
OUT_
100 1000 µs
Output Fall Time
R
OUT_
= 10Ω, C
OUT_
= 1µF, measured from 90% to 10%
of V
OUT_
4.0 ms
Thermal Shutdown Threshold 10°C hysteresis +160 °C
V
IN_
= 2.7V to 4.0V 1.6
Logic-Input High Voltage (ONA,
ONB, ONC, SEL)
V
IN_
= 4.0V to 5.5V 2.0
V
V
IN_
= 2.7V to 4.0V 0.6
Logic-Input Low Voltage (ONA,
ONB, ONC, SEL)
V
IN_
= 4.0V to 5.5V 0.8
V
Logic-Input Current -1 +1 µA
FLT_ Output Low Voltage I
SINK
= 1mA 0.4 V
FLT_ Output High Leakage
Current
V
FLT_
= 5.5V 1 µA
SETI Output Voltage 600 mV
SETI External Resistor Range 26.1kΩ sets 1.37A maximum current limit 26 60 kΩ
OUT_ Auto-Restart Current In latched-off state, V
OUT_
= 0V 10 25 50 mA
OUT_ Auto-Restart Threshold In latched-off state, V
OUT_
rising 0.4 0.5 0.6 V
OUT_ Auto-Restart Delay Time In latched-off state, V
OUT_
> 1V 10 20 40 ms
Reverse Current Detection
Threshold
0.9 A
Reverse Current Detection Blank
Time
10 20 40 ms
Note 4: Specifications to -40°C are guaranteed by design and characterization and not production tested.
Note 5: The output voltage at which the device transitions from short-circuit current limit to continuous current limit.
P1-P3P4-P6P7-P9P10-P11

MAX1564ETE+T

Mfr. #:
Buy MAX1564ETE+T
Manufacturer:
Maxim Integrated
Description:
Power Switch ICs - Power Distribution Triple 1.2A USB Switch
Lifecycle:
New from this manufacturer.
Delivery:
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