MAX1562HESA-T ,Programmable, 4A, USB, Current-Limited Switches with Autoreset and Fault Blankingfeatures to protect the USB port. Built-in thermal-overload protection turns off the switch when th ..
MAX1563ETC+ ,Programmable, 4A, USB, Current-Limited Switches with Autoreset and Fault BlankingELECTRICAL CHARACTERISTICS(V = +5V, C = 1µF, C = 4.7µF, T = 0°C to +85°C, unless otherwise noted. T ..
MAX1564ETE ,Triple 1.2 A USB switch in 4mm x 4mm thin QFNApplications16 Thin QFN-EP*MAX1564ETE -40°C to +85°C T1644-4USB Ports4mm x 4mmUSB Hubs*EP = Exposed ..
MAX1564ETE+T ,Triple 1.2A USB Switch in 4mm x 4mm Thin QFNApplications*EP = Exposed pad.USB PortsUSB HubsNotebook ComputersPin ConfigurationDesktop Computers ..
MAX1565ETJ ,Small / High-Efficiency / Five-Channel Digital Still Camera Power SupplyELECTRICAL CHARACTERISTICS(V = 3.3V, T = 0°C to +85°C, unless otherwise noted.)OUTSU A PARAMETER CO ..
MAX1565ETJ+ ,Small, High-Efficiency, Five-Channel Digital Still Camera Power Supplyapplications that use either 2 or3 alkaline or NiMH batteries as well as those using a ♦ Step-Down ..
MAX4225ESA ,1GHz, Low-Power, SOT23, Current-Feedback Amplifiers with ShutdownFeaturesThe MAX4223–MAX4228 current-feedback amplifiers' Ultra-High Speed and Fast Settling Time:co ..
MAX4226ESD ,1GHz, Low-Power, SOT23, Current-Feedback Amplifiers with ShutdownELECTRICAL CHARACTERISTICS(V = +5V, V = -5V, SHDN = 5V, V = 0V, R = ¥ , T = T to T , unless otherwi ..
MAX4226EUB+ ,1GHz, Low-Power, SOT23, Current Feedback Amplifiers with ShutdownELECTRICAL CHARACTERISTICS(V = +5V, V = -5V, SHDN = 5V, V = 0V, R = ¥ , T = T to T , unless otherwi ..
MAX4227ESA ,1GHz, Low-Power, SOT23, Current-Feedback Amplifiers with ShutdownApplicationsMAX4223EUT-T -40°C to +85°C 6 SOT23 AAADADC Input Buffers Data CommunicationsMAX4223ESA ..
MAX422CPA ,【15 Volt Chopper Stabilized Operational AmplifierELECTRICAL CHARACTERISTICS MAX420, MAX421
( + 2 +15V, V- = -15V, TA = +25°C1Testcircuitunless no ..
MAX422CPA+ ,【15 Volt Chopper Stabilized Operational AmplifierELECTRICAL CHARACTERISTICS MAX420, MAX421
( + 2 +15V, V- = -15V, TA = +25°C1Testcircuitunless no ..
MAX1562ESA+-MAX1562HESA+T-MAX1562HESA-T-MAX1563ETC+
Programmable, 4A, USB, Current-Limited Switches with Autoreset and Fault Blanking
General DescriptionThe MAX1562/MAX1562H/MAX1563 single current-
limited switches provide up to 4A to power up to eight
USB ports. They operate from a 4V to 5.5V input
supply and consume only 40µA of quiescent current
when operating and only 3µA in shutdown.
The MAX1562/MAX1562H/MAX1563s’ autoreset feature
latches the switch off if the output is shorted, thereby
saving system power. When the short is removed, the
switch is reactivated. A fault-blanking feature enables the
circuit to ignore momentary faults, such as those caused
when hot swapping a capacitive load, preventing false
alarms to the host system. Fault blanking also prevents
fault signals from being issued when the device powers
up the load.
The MAX1562/MAX1562H/MAX1563 provide several
safety features to protect the USB port. Built-in thermal-
overload protection turns off the switch when the die
temperature exceeds +160°C. Accurate internal cur-
rent-limiting circuitry protects the input supply against
both overload and short-circuit conditions. An open-
drain fault signal (FAULT) notifies the microprocessor
when a thermal-overload, current-limit, undervoltage
lockout (UVLO), or short-circuit fault occurs.
The MAX1562 has an active-low ON, and the
MAX1562H has an active-high ON enable input. The
MAX1563 has a selectable active-high or active-low
logic-controlled enable. The current limit is pro-
grammed from 1A to 4A using a resistor.
The MAX1562/MAX1562H are available in 8-pin SO
packages and are pin-compatible upgrades to the
MIC2545A/MIC2549A. The MAX1563 provides the
same features and higher current performance in a
smaller 12-pin (4mm x 4mm) Thin QFN package. These
devices operate over an extended temperature range
(-40°C to +85°C). An evaluation kit is available to speed
designs.
ApplicationsNotebook Computers
Desktop Computers
USB Ports and Hubs
PDAs and Palmtop Computers
Docking Stations
FeaturesProgrammable Current Limit (1A to 4A) with
ResistorAutoreset Feature Saves System Power20ms Fault-Blanking CircuitryActive-High/Low Control LogicFault-Indicator OutputThermal-Overload ProtectionSmaller 4mm x 4mm Thin QFN Package (MAX1563)3µA Shutdown Current
MAX1562/MAX1562H/MAX1563
Programmable 4A USB Current-Limited
Switches with Autoreset and Fault Blanking
Ordering Information19-2631; Rev 2; 2/10
EVALUATION KIT
AVAILABLE
Pin Configurations appear at end of data sheet.
PARTTEMP RANGEPIN-PACKAGE
MAX1562ESA+-40°C to +85°C8 SO
MAX1562HESA+-40°C to +85°C8 SO
MAX1563ETC+-40°C to +85°C12 TQFN-EP*
MAX1562
MAX1562H
MAX1563
FAULT
OUT
OUTISET
SEL
USB
PORT
GND
INPUT
4V TO 5.5V
MAX1563
ONLY
ACTIVE-HIGH/ACTIVE-LOW
SELECTABLE
Typical Operating Circuit+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
MAX1562/MAX1562H/MAX1563
Programmable 4A USB Current-Limited
Switches with Autoreset and Fault Blanking
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VIN= +5V, CIN= 1µF, COUT= 4.7µF, TA
= 0°C to +85°C, unless otherwise noted. Typical values are at TA= +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
FAULTto GND.............................................-0.3V to (VIN+ 0.3V)
IN to OUT..................................................................-0.3V to +6V
OUT Maximum Continuous Switch Current ............................5A
FAULTDC 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
PARAMETERSYM B O L CONDITIONSMINTYPMAXUNITSSupply Voltage RangeVIN4.05.5V
Switch On-ResistanceRON2650mΩ
Standby Supply CurrentSwitch disabled310µA
Quiescent Supply CurrentIINSwitch enabled, IOUT = 0A4080µA
OUT Off-Leakage CurrentILKGSwitch disabled, VOUT = 0V0.0210µA
Undervoltage-Lockout ThresholdVUVLORising edge, 3% hysteresis2.93.43.8V
MAX156314Continuous Current-Limit Adjust
RangeMAX1562/MAX1562H13A
RISET = 4.22kΩ (MAX1563 only)3.244.8
RISET = 5.76kΩ2.433.6
RISET = 8kΩ1.72.12.6Continuous Current LimitILIMVIN - VOUT
= 0.5V
RISET = 12kΩ1.11.41.7
4.9A(peak)RISET = 4.22kΩ (MAX1563 only)1.6A(RMS)
2.53.64.7A(peak)RISET = 5.76kΩ1.4A(RMS)
1.21.72.3A(peak)
Short-Circuit Current LimitILIMVOUT = 0V,
IOUT pulsing
RISET = 12kΩ0.4A(RMS)
Short-Circuit Detect Threshold(Note 1)1V
Continuous Current-Limit
Blanking Timeout Period
From continuous current-limit condition to
FAULT asserted102035ms
Short-Circuit Blanking Timeout
Period
From short-circuit current-limit condition to
FAULT asserted7.51835ms
Turn-On DelaytONROUT = 2Ω, COUT = 4.7µF
(from ON to 10% of VOUT)0.51.24.0ms
Output Rise TimetRISEROUT = 2Ω, COUT = 4.7µF
(from 10% to 90% of VOUT)2.5ms
Turn-Off DelaytOFFROUT = 2Ω, COUT = 4.7µF
(from ON to 90% of VOUT)0.13ms
MAX1562/MAX1562H/MAX1563
Programmable 4A USB Current-Limited
Switches with Autoreset and Fault Blanking
ELECTRICAL CHARACTERISTICS (continued)(VIN= +5V, CIN= 1µF, COUT= 4.7µF, TA
= 0°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.)
PARAMETERSYM B O L CONDITIONSMINTYPMAXUNITSOutput Fall TimetFALLROUT = 2Ω, COUT = 4.7µF
(from 90% to10% of VOUT)0.8ms
Thermal-Shutdown Threshold15°C hysteresis+160°C
ON, ON, SEL Input High LevelVIHVIN = +4V to +5.5V2V
ON, ON, SEL Input Low LevelVILVIN = +4V to +5.5V0.8V
ON, ON, SEL Input
Leakage Current-1+1µA
FAULT Output Low VoltageVOLISINK = 1mA, VIN = +4V0.4V
FAULT Output
High Leakage CurrentVIN = V FAULT = +5.5V1µA
OUT Autoreset CurrentIn latched-off state, VOUT = 0V102545mA
OUT Autoreset ThresholdIn latched-off state, OUT rising0.350.50.65V
OUT Autoreset Blanking TimeIn latched-off state, VOUT > 0.5V102035ms
ELECTRICAL CHARACTERISTICS(VIN= +5V, CIN= 1µF, COUT= 4.7µF, TA
= -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETERSYM B O L CONDITIONSMINTYPMAXUNITSSupply Voltage RangeVIN4.05.5V
Switch On-ResistanceRON50mΩ
Standby Supply CurrentSwitch disabled10µA
Quiescent Supply CurrentIINSwitch enabled, IOUT = 0A80µA
OUT Off-Leakage CurrentILKGSwitch disabled, VOUT = 0V10µA
UVLO ThresholdVUVLORising edge, 3% hysteresis2.93.8V
MAX156314Continuous Current-Limit Adjust
RangeMAX1562/MAX1562H13A
RISET = 4.22kΩ (MAX1563 only)3.14.9
RISET = 5.76kΩ2.33.7
RISET = 8kΩ1.62.7Continuous Current LimitILIMVIN - VOUT
= 0.5V
RISET = 12kΩ1.01.8
RISET = 5.76kΩ2.44.8Short-Circuit Current LimitILIMVOUT = 0V,
IOUT pulsingRISET = 12kΩ1.12.4A(peak)
Continuous Current-Limit
Blanking Timeout Period
From continuous current-limit condition to
FAULT asserted1035ms
Short-Circuit Blanking Timeout
Period
From short-circuit current-limit condition to
FAULT asserted7.535ms
MAX1562/MAX1562H/MAX1563
Programmable 4A USB Current-Limited
Switches with Autoreset and Fault Blanking
ELECTRICAL CHARACTERISTICS (continued)(VIN= +5V, CIN= 1µF, COUT= 4.7µF, TA
= -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETERSYM B O L CONDITIONSMINTYPMAXUNITSTurn-On DelaytONROUT = 2Ω, COUT = 4.7µF
(from ON to 10% of VOUT)0.54.0ms
Turn-Off DelaytOFFROUT = 2Ω, COUT = 4.7µF
(from ON to 90% of VOUT)3ms
ON, ON, SEL Input High LevelVIHVIN = +4V to +5.5V2V
ON, ON, SEL Input Low LevelVILVIN = +4V to +5.5V0.8V
ON, ON, SEL Input
Leakage Current-1+1µA
FAULT Output Low VoltageVOLISINK = 1mA, VIN = +4V0.4V
FAULT Output
High Leakage CurrentVIN = V FAULT = +5.5V1µA
OUT Autoreset CurrentIn latched-off state, VOUT = 0V1045mA
OUT Autoreset ThresholdIn latched-off state, OUT rising0.350.65V
OUT Autoreset Blanking TimeIn latched-off state, VOUT > 0.5V1035ms
Note 1:Short-circuit detect threshold is the output voltage at which the device transitions from short-circuit current limit to continuous
current limit.
Note 2:Specifications to -40°C are guaranteed by design, not production tested.
SUPPLY CURRENT vs. SUPPLY VOLTAGEMAX1562 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
TEMP = +25°C
TEMP = -40°C
TEMP = +85°C
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGEMAX1562 toc02
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT (
TEMP = +25°C
TEMP = -40°C
TEMP = +85°C
VON = 5V
SWITCH-OFF LEAKAGE CURRENT
vs. TEMPERATUREMAX1562 toc03
TEMPERATURE (°C)
SWITCH-OFF LEAKAGE CURRENT (nA)3510-15
Typical Operating Characteristics
(VIN= +5V, CIN= 1µF, COUT= 4.7µF, TA= +25°C, unless otherwise noted.)
MAX1562/MAX1562H/MAX1563
Programmable 4A USB Current-Limited
Switches with Autoreset and Fault Blanking
NORMALIZED RON vs. TEMPERATUREMAX1562 toc04
TEMPERATURE (°C)
NORMALIZED R3510-15
NORMALIZED CONTINUOUS
CURRENT LIMIT vs. TEMPERATURE
MAX1562 toc05
TEMPERATURE (°C)
NORMALIZED CONTINUOUS CURRENT LIMIT3510-15
TURN-ON TIME vs. TEMPERATURE
MAX1562 toc06
TEMPERATURE (°C)
TURN-ON TIME (ms)3510-15
RLOAD = 2Ω
TURN-OFF TIME vs. TEMPERATURE
(tOFF + tFALL)MAX1562 toc07
TEMPERATURE (°C)
TURN-OFF TIME (ms)35-1510
RLOAD = 2Ω
FAULT-BLANKING TIME
vs. TEMPERATUREMAX1562 toc08
TEMPERATURE (°C)
FAULT-BLANKING TIME (ms)3510-15
AUTORESET CURRENT
vs. TEMPERATURE
MAX1562 toc09
TEMPERATURE (°C)
AUTORESET CURRENT (mA)3510-15
AUTORESET CURRENT vs. VCC
MAX1562 toc10
VCC (V)
AUTORESET CURRENT (mA)
OVERLOAD RESPONSE INTO 1.4Ω
MAX1562 toc11
20ms/div
VOUT
VIN
IOUT
5V/div
5V/div
2A/div
FAULT
5V/div
SHORT-CIRCUIT RESPONSE INTO 0ΩMAX1562 toc12
TIME (10ms/div)
5V/div
10A/div
5V/div
5V/div
VOUT
IOUT
VIN
VFAULT
Typical Operating Characteristics (continued)(VIN= +5V, CIN= 1µF, COUT= 4.7µF, TA= +25°C, unless otherwise noted.)
MAX1562/MAX1562H/MAX1563
Programmable 4A USB Current-Limited
Switches with Autoreset and Fault Blanking
Typical Operating Characteristics (continued)(VIN= +5V, CIN= 1µF, COUT= 4.7µF, TA= +25°C, unless otherwise noted.)
SWITCH TURN-ON TIMEMAX1562 toc13
1ms/div
VON
(MAX1562H)
VON
(MAX1562)
2V/div
2V/div
VOUT2V/div
ROUT = 2Ω
SWITCH TURN-OFF TIMEMAX1562 toc14
400μs/div
2V/div
2V/div
ROUT = 2Ω
2V/div
VON
(MAX1562H)
VOUT
VON
(MAX1562)
STARTUP TIME
(ROUT = 2Ω, COUT = 4.7μF)MAX1562 toc15
FAULT
VON
2V/div
5V/div
VOUT
1A/divIOUT
1ms/div
STARTUP TIME
(ROUT = 2Ω, COUT = 100μF)MAX1562 toc16
FAULT
VON
2V/div
5V/div
VOUT
1A/divIOUT
1ms/div
STARTUP TIME
(ROUT = 2Ω, COUT = 330μF)MAX1562 toc17
FAULT
VON
2V/div
5V/div
VOUT
1A/divIOUT
1ms/div
ULVO RESPONSEMAX1562 toc18
10ms/div
VFAULT
VIN
VOUT
2V/div
2V/div
2V/div
ROUT = 1kΩ
Detailed DescriptionThe MAX1562/MAX1562H/MAX1563 family comprises a
programmable current-limited switch designed for USB
and hot-swap applications. The MAX1563 can be pro-
grammed for loads up to 4A, and the MAX1562/
MAX1562H can be programmed for loads up to 3A. The
current limit is programmed using a single resistor. A fault
output notifies the host when the current-limit, short-cir-
cuit, UVLO, or thermal-shutdown threshold is exceeded.
A built-in current limit protects the load and the source
in the event of an overload condition. In addition, a
built-in short-circuit detection circuit pulses the output if
the output is less than 1V (typ), resulting in a lower RMS
output current and reduced power dissipation in the
device. Thermal shutdown protects the device in the
event of a prolonged overload or short-circuit condition.
An internal micropower charge pump generates the
high-side supply needed for driving the gate of the
internal low-RONNMOS switch.
Fault blanking allows the MAX1562/MAX1562H/
MAX1563 family to handle USB loads that may not be
fully compliant with USB specifications. USB loads with
additional bypass capacitance or large startup currents
can be successfully powered while protecting the
upstream power source. If the switch brings up the
load within the blanking period (20ms typ), FAULTis
not asserted. In the event of a current-limit event, cur-
rent through the switch is regulated at the current-limit
target. Below approximately 1V, the short-circuit current
limit is 30% higher than the programmed current limit.
Current-Limit ProgrammingThe MAX1562/MAX1562H/MAX1563 continuous current
limit is set by selecting the value of RISET based on the
MAX1562/MAX1562H/MAX1563
Programmable 4A USB Current-Limited
Switches with Autoreset and Fault Blanking
Pin Description
PIN
MAX1562
MAX1562H
MAX1563
(TQFN-EP)
NAMEFUNCTION4ON (ON)Switch On/Off Control Input. The active polarity of ON is low for the MAX1562 and high
for the MAX1562H. For the MAX1563, the active polarity of ON is set by SEL.FAULT
Fault Indicator Output. FAULT is an open-drain output that asserts low when the switch
enters a sustained (>20ms) current limit. FAULT goes low immediately during thermal
shutdown or an undervoltage input. Note that during severe short conditions, FAULT
goes low immediately since there is typically also a brief undervoltage transient.6GNDGround7ISETCurrent-Limit Input. Connect an external resistor from ISET to GND to set current limit,
where ILIM = 17120 / RISET.
5, 79, 12IN
Power Input for Switch. Connect both IN inputs together and bypass with a 1µF
ceramic capacitor to GND. Load conditions might require additional bulk capacitance
to prevent fluctuation on the input source.
6, 81, 10OUT
Power Output for Switch. Bypass OUT to GND with a 4.7µF ceramic capacitor. Load
conditions might require additional bulk capacitance. When disabled, OUT goes into
a high-impedance state.2, 8, 11N.C.No Connection. Internally unconnected. Leave unconnected or use with other traces
to simplify PC board layout.3SELPolarity Control Input for ON. Drive SEL high for active-high enable. Drive SEL low for
active-low enable.EP
Exposed Pad. Internally connected to GND. Connect to a large ground plane with
multiple vias to manage thermal performance. Not intended as an electrical
connection point.
