MAX8586ETA+-MAX8586ETA+T Fast Delivery |IC PHOENIX CO.,LIMITED

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MAX8586ETA+-MAX8586ETA+T
Single 1.2A USB Switch in 3mm x 3mm TDFN
General Description
The MAX8586 single current-limited switch controls up to
1.2A to power USB applications and has multiple protec-
tion features including thermal shutdown, internal current
limiting, and reverse current protection. The thermal shut-
down limits junction temperature during a prolonged
short or overload condition. The internal current-limiting
circuitry protects the input supply against overload and
is programmable using an external resistor. The
MAX8586 meets all IEC specifications for USB ports.
The IC latches off when the output experiences a short
circuit for more than 20ms, saving system power. Auto-
restart tests the shorted output with a 25mA current to
determine if the short still exists. Once the short is
removed, the MAX8586 automatically restarts the out-
put. An open-drain fault signal notifies the system that
the internal current limit has been reached. A 20ms
fault-blanking feature allows the circuit to ignore
momentary faults such as those caused when hot-
swapping into a capacitive load. An ENRESET input is
available to disable the auto-restart function.
The MAX8586 features a SEL input that programs ON
to be either active high or active low. The IC is supplied
in a space-saving, 8-pin, 3mm x 3mm TDFN package.
FeaturesReverse Current ProtectionProgrammable Current Limit Up to 1.2AAccurate Current LimitSelectable Auto-Restart when Fault Is RemovedThermal-Overload ProtectionSelectable Active-High/Low ON InputBuilt-In 20ms Fault BlankingCompliant with All USB Specifications2.75V to 5.5V Input Supply RangeFAULTIndicator Output15kV ESD Protection (with Caps)Tiny 8-Pin 3mm x 3mm TDFN Package
Applications
USB Ports/Hubs
Desktop/Notebook Computers
PDAs and Palmtop Computers
Docking Stations
Single 1.2A USB Switch in
3mm x 3mm TDFN
MAX8586
EVALUATION KIT AVAILABLE
Pin Configuration appears at end of data sheet.
Ordering Information
PARTTEMP RANGEPIN-
PACKAGE
TOP
MARK
MAX8586ETA -40°C to +85°C
8 TDFN
3mm x 3mm
(T833-2)
AMH
MAX8586ETA+ -40°C to +85°C
8 TDFN
3mm x 3mm
(T833-2)
AMH
MAX8586ETA+T -40°C to +85°C
8 TDFN
3mm x 3mm
(T833-2)
AMH
MAX8586ETA/V+ -40°C to +85°C
8 TDFN
3mm x 3mm
(T833-2)
BLU
INPUT SUPPLY
2.75V TO 5.5V
OUTPUT
FAULT
INDICATOR
ON/OFF
POLARITY
SELECTION
ON/OFF
CONTROL
OUTPUT SUPPLY
UP TO 1.2AINOUT
ENRESET
ISET
FAULT
MAX8586
SEL
GND
AUTO-RESTART
ON/OFF
Typical Operating Circuit
/V denotes an automotive qualified part.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Single 1.2A USB Switch in
3mm x 3mm TDFN
MAX8586
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VIN= VON= VSEL= VENRESET= 5V, RISET= 26kΩto GND, RFAULT= 100kΩpullup to VIN, COUT= 0.1µF, TA= -40°C to +85°C.
Typical values are at TA= +25°C, unless otherwise specified.) (Note 1)
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, SEL, OUT, FAULT, ISET, ENRESET to GND..-0.3V to +6V
IN to OUT.....................................................................-6V to +6V
FAULTSink Current............................................................20mA
Continuous Power Dissipation
8-Pin 3mm x 3mm TDFN
(derate 24mW/°C above +70°C)................................1951mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Soldering Temperature (reflow).......................................+260°C
PARAMETERCONDITIONSMINTYPMAXUNITS
Supply Voltage Range2.755.50V
VIN = 5V55
VIN = 3V65Switch On-Resistance
VIN = 4.4V95
IN Standby Supply CurrentVON = 0V36µA
IN Quiescent Supply CurrentIOUT = 0A3055µA
TA = +25°C0.021OUT Off-Leakage CurrentVON = 0V, VOUT = 0VTA = +85°C0.6µA
Undervoltage-Lockout ThresholdRising edge, 3% hysteresis (typ)2.32.52.7V
RISET = 26kΩ1.21.41.6
RISET = 39kΩ0.8000.9251.050Current-Limit Threshold
RISET = 60kΩ0.50.60.7
RISET = 26kΩ1.351.752.20
RISET = 39kΩ1.2Peak Short-Circuit Current LimitVOUT = 0V,
(IOUT pulsing)
RISET = 60kΩ0.74
A (Peak)
RISET = 26kΩ0.55
RISET = 39kΩ0.37RMS Short-Circuit Current LimitVOUT = 0V,
(IOUT pulsing)
RISET = 60kΩ0.23
A (RMS)
Short-Circuit/Continuous Current Limit
Transition Threshold(Note 2)1V
Fault-Blanking Timeout PeriodFrom current-limit condition to FAULT falling82040ms
Single 1.2A USB Switch in
3mm x 3mm TDFN
MAX8586
ELECTRICAL CHARACTERISTICS (continued)
(VIN= VON= VSEL= VENRESET= 5V, RISET= 26kΩto GND, RFAULT= 100kΩpullup to VIN, COUT= 0.1µF, TA= -40°C to +85°C.
Typical values are at TA= +25°C, unless otherwise specified.) (Note 1)
Note 1:All devices are 100% production tested at TA= +25°C. Limits over the operating temperature range are guaranteed by
design.
Note 2:The output voltage at which the device transitions from short-circuit current limit to continuous current limit.
PARAMETERCONDITIONSMINTYPMAXUNITS
Turn-On Delay
ROUT = 10Ω, COUT = 1µF, measured from
ON rising to 10% of VOUT, does not include
rise time
0.51.54.0ms
Output Rise TimeROUT = 10Ω, COUT = 1µF, measured from
10% to 90% of VOUT5.5ms
Turn-Off Delay from ONROUT = 10Ω, COUT = 1µF measured from
ON falling to 90% of VOUT1001000µs
Output Fall TimeROUT = 10Ω, COUT = 1µF, measured from
90% to 10% of VOUT4ms
Thermal-Shutdown Threshold15°C hysteresis (typ)+160°C
VIN = 2.75V to 4.0V1.6ON, SEL, ENRESET Logic Input High VoltageVIN = 4.0V to 5.5V2.0V
VIN = 2.75V to 4.0V0.6ON, SEL, ENRESET Logic Input Low VoltageVIN = 4.0V to 5.5V0.8V
Logic Input CurrentTA = +25°C-1+1µA
FAULT Output Low VoltageISINK = 1mA0.4V
FAULT Output High Leakage CurrentVIN = 5.5V, TA = +25°C1µA
ISET Current-Limit Trip PointRISET = 26kΩ600mV
ISET External Resistance Range2660kΩ
Auto-Restart CurrentIn latched-off state, VOUT = 0V102560mA
Auto-Restart ThresholdIn latched-off state, VOUT rising0.40.50.6V
Auto-Restart DelayIn latched-off state, VOUT>1V82040ms
Single 1.2A USB Switch in
3mm x 3mm TDFN
MAX8586
Typical Operating Characteristics
(Typical Application Circuit, VIN= VON= VSEL= VENRESET= 5V, TA= +25°C, unless otherwise noted.)
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX8586 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (4123
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX8586 toc02
SUPPLY VOLTAGE (V)
SUPPLY CURRRENT (4321
VON = 0V
SWITCH LEAKAGE CURRENT
vs. TEMPERATURE
MAX8586 toc03
TEMPERATURE (°C)
LEAKAGE CURRENT (3510-15
VON = 0V
NORMALIZED ON-RESISTANCE
vs. TEMPERATURE
MAX8586 toc04
TEMPERATURE (°C)
NORMALIZED R3510-15
CONTINUOUS CURRENT LIMIT
vs. TEMPERATURE
MAX8586 toc05
TEMPERATURE (°C)
CURRENT LIMIT (A)3510-15
VENRESET = 0V
CURRENT LIMIT
vs. TEMPERATURE
MAX8586 toc06
TEMPERATURE (°C)
CURRENT LIMIT (A)3510-15
VENRESET = 5V
CURRENT LIMIT
vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
MAX8586 toc07
CURRENT LIMIT (A)
VENRESET = 5V
SWITCH ON-TIME
vs. TEMPERATURE
MAX8586 toc08
TEMPERATURE (°C)
ON-TIME (ms)3510-15
RLOAD = 5Ω
NO LOAD
MEASURED FROM ON HIGH UNTIL
VOUT REACHES 90% OF THE INPUT
SWITCH OFF-TIME
vs. TEMPERATURE
MAX8586 toc09
TEMPERATURE (°C)
OUTPUT FALL TIME (ms)3510-15
RLOAD = 5Ω
MEASURED FROM ON LOW UNTIL
VOUT FALLS TO 10% OF THE INPUT
Typical Operating Characteristics (continued)
(Typical Application Circuit, VIN= VON= VSEL= VENRESET= 5V, TA= +25°C, unless otherwise noted.)
Single 1.2A USB Switch in
3mm x 3mm TDFN
FAULT-BLANKING TIME
vs. TEMPERATURE
MAX8586 toc10
TEMPERATURE (°C)
FAULT-BLAMKING TIME (ms)3510-15
AUTO-RESTART CURRENT
vs. TEMPERATURE
AUTO-RESTART CURRENT (mA)
MAX8586 toc11
TEMPERATURE (°C)3510-15-4085
AUTO-RESTART CURRENT
vs. INPUT VOLTAGE
MAX8586 toc12
INPUT VOLTAGE (V)
AUTO-RESTART CURRENT (mA)
RLOAD = 0.5Ω
OVERLOAD RESPONSE INTO 2Ω
MAX8586 toc13
10ms/div
VOUT
IOUT
IIN
5V/div
5V/div
2A/div
2A/div
FAULT
FAULT REMOVED
OVERLOAD RESPONSE INTO SHORT CIRCUIT
MAX8586 toc14
10ms/div
VOUT
IOUT
IIN
5V/div
5V/div
2A/div
2A/div
FAULT
FAULT REMOVED
SWITCH TURN-ON WAVEFORM INTO NO LOAD
MAX8586 toc15
1ms/div
VOUT
VON
2V/div
2V/div
SWITCH TURN-ON WAVEFORM INTO 5Ω LOAD
MAX8586 toc16
1ms/div
VOUT
VON
2V/div
2V/div
MAX8586
Single 1.2A USB Switch in
3mm x 3mm TDFN
MAX8586ypical Operating Characteristics (continued)
(Typical Application Circuit, VIN= VON= VSEL= VENRESET= 5V, TA= +25°C, unless otherwise noted.)
SWITCH TURN-OFF WAVEFORM INTO 5Ω LOAD
MAX8586 toc17
1ms/div
VOUT
VON
2V/div
2V/div
STARTUP INTO 10μF
MAX8586 toc18
2ms/div
VOUT
IOUT
VIN
AC-COUPLED
5V/div
50mV/div
20mA/div
2A/div
FAULT
STARTUP INTO 470μF
MAX8586 toc19
2ms/div
VOUT
IOUT
VIN
AC-COUPLED
5V/div
50mV/div
500mA/div
2V/div
FAULT
UVLO RESPONSE WITH 50Ω LOAD
MAX8586 toc20
4ms/div
VOUT
VIN
5V/div
2V/div
2V/div
FAULT
Single 1.2A USB Switch in
3mm x 3mm TDFN
MAX8586
Pin Description
PINNAMEFUNCTIONSELON Polarity Selector Input. Drive SEL high to select ON for an active-high enable. Drive SEL to GND to select
ON for an active-low enable.ISETCurrent-Limit Programming Input. Connect a resistor from ISET to GND to set the internal current limit. The
valid range for RISET is 26kΩ to 60kΩ.
3ONEnable Input. Drive ON high to enable the device when SEL is high. Drive ON low to enable the device when
SEL is low.
4INPower-Supply Input. Connect to an input power supply in the 2.75V to 5.5V range. Bypass IN to GND with a
1µF or greater ceramic capacitor.OUTPower Output. Bypass OUT to GND with a 1µF or greater capacitor. OUT is high impedance during
shutdown.FAULTOpen-Drain Fault-Indicator Output. FAULT is low when the input is below UVLO, or during current limit,
reverse current detection, or thermal shutdown.GNDGround. Connect GND to the exposed paddle and to a ground plane.ENRESETAuto-Restart Enable Input. Drive ENRESET high to enable auto-restart mode. Drive ENRESET low to disable
auto-restart mode.EPExposed Pad. Connect the exposed pad to a large ground plane to improve thermal power dissipation.
Functional Diagram
CURRENT-
LIMIT
CIRCUITRY
CONTROL
LOGIC
MAX8586
O.5V
FAULT
ENRESET
ISET
OUT
25mA
SEL
GND
CHARGE
PUMP
OSCILLATOR
AUTO-
RESTART
CIRCUITRY
THERMAL-
SHUTDOWN
CIRCUITRY
20ms
TIMERUVLO

Partno	Mfg	Dc	Qty	Available	Descript
MAX8586ETA+	MAXIM	N/a	13000	avai	Single 1.2A USB Switch in 3mm x 3mm TDFN
MAX8586ETA+T	MAXIM	N/a	2500	avai	Single 1.2A USB Switch in 3mm x 3mm TDFN