MAX1607ETB+ ,USB Current-Limited Switch in Pin-Compatible PackageELECTRICAL CHARACTERISTICS(V = +5V, T = 0°C to +85°C, unless otherwise noted. Typical values are at ..
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MAX160CPN ,レP Compatible 8 Bit A/D Converter
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The MAX160 and MX7574 are low cost, micropro-
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ABSOLUTE MAXIMUM RATINGS - MAX160, MX7574
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MAX4315EEE ,High-Speed / Low-Power / Single-Supply / Multichannel / Video Multiplexer-Amplifiersapplications. MAX4313EUA -40°C to +85°C 8 µMAXMAX4313ESA -40°C to +85°C 8 SO
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MAX1607ESA+-MAX1607ESA+C71055-MAX1607ESA+T-MAX1607ESA-T-MAX1607ETB+
USB Current-Limited Switch in Pin-Compatible Package
General DescriptionThe MAX1607 is a current-limited 60mΩswitch with
built-in fault blanking. Its accurate, preset 0.7A to 1.0A
current limit makes it ideal for USB applications. Its low
quiescent supply current (14µA) and standby current
(1µA) conserve battery power in portable applications.
The MAX1607 operates with inputs from +2.7V to
+5.5V, making it ideal for both 3V and 5V systems.
An overcurrent signal (OC) notifies the microprocessor
that the internal current limit has been reached. A 10ms
overcurrent-blanking feature allows momentary faults
(such as those caused when hot-swapping into a
capacitive load) to be ignored, thus preventing false
alarms to the host system. This blanking also prevents
an OCsignal from being issued when the device is
powering up.
The MAX1607 has several safety features to ensure that
the USB port is protected. Built-in thermal-overload pro-
tection limits power dissipation and junction temperature.
The device also has accurate internal current-limiting
circuitry to protect the input supply against overload.
The MAX1607 is a pin-compatible upgrade to Texas
Instruments’ TPS2014, TPS2015, and TPS2041 for USB
applications. The same die is available in a space-sav-
ing 10-pin µMAX®package (MAX1693) and can be
used for next-generation designs. The MAX1694 is sim-
ilar to the MAX1693, but it has a built-in latch that turns
off the power switch in case of a long-term short-
circuit condition.
The MAX1607 is also offered in a 10-pin TDFN package
(not pin compatible with Texas Instruments TPS2014,
TPS2015, and TPS2041 for USB applications).
Applications
FeaturesSO Package is Pin Compatible with TPS2014,
TPS2015, and TPS2041Accurate Current Limit (0.7A min, 1.0A max)Guaranteed 0.75A Short-Circuit Protection10ms Internal OCBlanking TimeoutNo Overcurrent (OC) Signal During Power-Up125mΩmax High-Side MOSFET500mA Continuous CurrentShort-Circuit and Thermal Protection with
Overcurrent Logic Output1ms Start-Up TimeUndervoltage Lockout14µA Quiescent Supply Current1µA max Standby Supply Current+2.7V to +5.5V Supply RangeUL Recognized #E211935
MAX1607
USB Current-Limited Switch
in Pin-Compatible PackageOUT
OUT
OUTIN
GND
TOP VIEW
MAX1607EN
MAX1607OUTPUTOUT
INPUT
+2.7V TO +5.5V
OFF
GND
Typical Operating Circuit19-1544; Rev 2; 09/07
Pin Configurations
Ordering InformationNotebook Computers
USB Ports
USB Hubs
Docking Stations
Pin Configurations continued at end of data sheet.
PARTTEMP RANGEPIN-
PACKAGE
PKG
CODEMAX1607ESA-40°C to +85°C8 SOS8-5
MAX1607ETB+-40°C to +85°C10 TDFN-EP*T1033-1
*EP = Exposed paddle.
+Denotes a lead-free package.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
MAX1607
USB Current-Limited Switch
in Pin-Compatible Package
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VIN= +5V, TA
= 0°C to +85°C,unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)
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, EN, OCto GND.....................................................-0.3 to +6V
OUT to GND................................................-0.3V to (VIN+ 0.3V)
Maximum Switch Current.........................1.2A (internally limited)
OUT Short-Circuit to GND..........................................Continuous
Continuous Power Dissipation (TA= +70°C)
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
10-Pin TDFN (derate 18.5mW/°C above +70°C).......1481mW
Operating Temperature Range (extended).........-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C= 0°C to +85°C
VEN= VIN= 5.5V,
VOUT= GND
Timer running
VEN= VIN= VOUT= 5.5V
OUT shorted to GND
Force VOUTto 4.5V
VIN= 3.7V to 5.5V
VIN= 2.7V to 3.6V
VIN= 5V, COUT= 150µF from ENdriven
low to 50% full VOUT
ILOAD= 400mA= +25°C= 0°C to +85°C
VEN= VINor GND
ILOAD= 400mA
VIN= 2.7V to 5.5V
CONDITIONS 15Supply Leakage Current0.01235IQSupply Current, High-Level
Input250.0011Supply Current, Low-Level Input 500700ISCShort-Circuit Output Current7008501000ILIMITOverload Output Current 1Start-Up Time-1+1ENInput Current0.8VILENLow-Level Input Voltage2.75.5VINInput Voltage2.4VIHENHigh-Level Input Voltage2.03620tOFFSwitch Turn-Off Time90
125mΩ150
RDS(ON)Switch Static Drain-Source
On-State Resistance80200tONSwitch Turn-On Time
UNITSMINTYPMAXSYMBOLPARAMETERVIN= VOC= 5V
ISINK= 1mA, VIN= 3V
Rising edge, 100mV hysteresis
From overcurrent condition to OCassertion+165Thermal Shutdown Threshold71013tBLOCBlanking Timeout Period1OCOff-State Current0.4VOLOCOutput Low Voltage2.02.42.6UVLOUndervoltage Lockout
VIN= 4.4V to 5.5V
VIN= 4.4V to 5.5V
VIN= 3V
Timer not runningVEN= GND, IOUT= 0= +25°C
OPERATING CONDITION
POWER SWITCH
ENABLE INPUT (EN)
CURRENT LIMIT
SUPPLY CURRENT
UNDERVOLTAGE LOCKOUT
OVERCURRENT (OC)
THERMAL SHUTDOWN
MAX1607
USB Current-Limited Switch
in Pin-Compatible Package
Note 1:Specifications to -40°C are guaranteed by design, not production tested.
Note 2:TDFN package parts are 100% production tested at TA= +25°C. Specifications over operating temperature are guaranteed
by design.
ELECTRICAL CHARACTERISTICS(VIN= +5V, TA
= -40°C to +85°C,unless otherwise noted.) (Note 1)
VIN= VOC= 5V
ISINK= 1mA, VIN= 3V
Rising edge, 100mV hysteresis
VEN= VIN = 5.5V, VOUT= GND
VEN= GND, IOUT= 0, timer not running
VEN= VIN= VOUT= 5.5V
VIN= 3.0V to 5.5V
VIN= 3.7V to 5.5V
OUT shorted to GND
Force VOUTto 4.5V
VIN= 3.0V to 3.6V
VIN= 4.4V to 5.5V
VIN= 3V
ILOAD= 400mA
ILOAD= 400mA
VEN= VINor GND
CONDITIONS1OCOff-State Current0.4VOLOCOutput Low Voltage2.02.9UVLOUndervoltage Lockout15Supply Leakage Current25IQSupply Current, High-Level
Input2Supply Current, Low-Level Input750ISCShort-Circuit Output Current 6401060ILIMITOverload Output Current -1+1ENInput Current 3.05.5VINInput Voltage0.8VILENLow-Level Input Voltage2.4VIHENHigh-Level Input Voltage2.0
125mΩ150RDS(ON)Switch Static Drain-Source
On-State Resistance200tONSwitch Turn-On Time120tOFFSwitch Turn-Off Time
UNITSMINTYPMAXSYMBOLPARAMETERBlanking Timeout PeriodtBLFrom overcurrent condition to OCassertion614ms
OPERATING CONDITION
POWER SWITCH
ENABLE INPUT (EN)
CURRENT LIMIT
SUPPLY CURRENT
UNDERVOLTAGE LOCKOUT
OVERCURRENT (OC)
MAX1607
USB Current-Limited Switch
in Pin-Compatible Package
Typical Operating Characteristics(VIN= +5V, TA = +25°C, unless otherwise noted.)13456
QUIESCENT CURRENT vs. INPUT VOLTAGEMAX1607-01
INPUT VOLTAGE (V)
QUIESCENT CURRENT (
IOUT = 0
VEN = GND
QUIESCENT CURRENT vs. TEMPERATURE
MAX1607-02
TEMPERATURE (°C)
QUIESCENT CURRENT (
VIN = 5V
VIN = 3V
OFF SUPPLY CURRENT
vs. TEMPERATURE
MAX1607-03
TEMPERATURE (°C)
OFF SUPPLY CURRENT (nA)
VEN = VIN
TURN-ON TIME vs. TEMPERATURE
MAX1607-07
TEMPERATURE (°C)
tON
ILOAD = 425mA
VIN = 3V
VIN = 5V
TURN-OFF TIME vs. TEMPERATURE
MAX1607-08
TEMPERATURE (°C)
tOFF
ILOAD = 425mA
VIN = 3V
VIN = 5V
FAULT-BLANKING TIMEOUT
vs. TEMPERATURE
MAX1607-09
TEMPERATURE (°C)
FAULT-BLANKING TIMEOUT (ms)
IOUT = 850mA
VIN = 3V OR 5V
OFF SWITCH CURRENT
vs. TEMPERATURE
MAX1607-04
TEMPERATURE (°C)
OFF SWITCH CURRENT (nA)60
VEN = VIN
NORMALIZED ON-RESISTANCE
vs. TEMPERATURE
MAX1607-05
TEMPERATURE (°C)
NORMALIZED R60
IOUT = 425mA
NORMALIZED OUTPUT CURRENT
vs. OUTPUT VOLTAGE
MAX1607-06
OUTPUT VOLTAGE (V)
NORMALIZED OUTPUT CURRENT
SHORT-CIRCUIT CURRENT
ILIMIT
MAX1607
USB Current-Limited Switch
in Pin-Compatible PackageCH4
CH3
CH1
CH2
2ms/div
MAX1607-10
CURRENT-LIMIT AND OC RESPONSECH1 = VIN, 200mV/div, AC-COUPLED
CH2 = VOUT, 5V/div
CH3 = VOC, 5V/div
CH4 = IOUT, 500mA/div
CH4
10μs/div
CH3
CH1
CH2
CURRENT-LIMIT RESPONSEMAX1607-11
CH1 = VIN, 200mV/div, AC-COUPLED
CH2 = VOUT, 5V/div
CH3 = VOC, 5V/div
CH4 = IOUT, 1A/div
CH4
CH3
CH2
CH1
SWITCH TURN-ON TIMEMAX1607-12
20μs/div
CH1 = VOUT, 5V/div
CH2 = VEN, 5V/div
CH3 = VOC, 5V/div
CH4 = IOUT, 200mA/div
CH4
CH3
CH2
CH1
SWITCH TURN-OFF TIMEMAX1607-13
1μs/div
CH1 = VOUT, 5V/div
CH2 = VEN, 5V/div
CH3 = VOC, 5V/div
CH4 = IOUT, 200mA/div
START-UP TIME
(TYPICAL USB APPLICATION)MAX1607-14
VIN = 5V, RL = 15Ω, CL = 150μF
CH1 = VOUT, 5V/div
CH2 = VEN, 5V/div
CH3 = IIN, 500mA/div
CH4 = VOC, 5V/div
1ms/div
CH2
CH3
CH4
CH1
FULL CURRENT LIMIT CHARGES CAPACITOR
RESISTOR LOAD CURRENT
SHORT-CIRCUIT
CURRENT LIMIT
Typical Operating Characteristics (continued)(VIN= +5V, TA = +25°C, unless otherwise noted.)
MAX1607
USB Current-Limited Switch
in Pin-Compatible Package
Detailed DescriptionThe MAX1607 P-channel MOSFET power switch limits
output current to 0.7A min and 1.0A max. When the out-
putcurrent is increased beyond the current limit (ILIMIT),
the current also increases through the replica switch
(IOUT/ 6500). The current-limit error amplifier compares
the voltage to the internal 1.24V reference and regu-
lates the current back to the ILIMIT(Figure 1).
These switches are not bidirectional; therefore, the
input voltage must be higher than the output voltage.
Continuous Short-Circuit ProtectionThe MAX1607 is a short-circuit-protected switch. In the
event of an output short-circuit condition, the current
through the switch is foldback-current-limited to 500mA
continuous.
Thermal ShutdownThe MAX1607 has a thermal shutdown feature. The
switch turns off and the OCoutput goes low immediate-
ly (no overcurrent blanking) when the junction tempera-
ture exceeds +165°C. When the MAX1607 cools 20°C,
the switch turns back on. If the fault short-circuit condi-
tion is not removed, the switch will cycle on and off,
resulting in a pulsed output.
IndicatorThe MAX1607 provides an overcurrent output (OC). A
100kΩpull-up resistor from OCto IN provides a logic
control signal. This open-drain output goes low when
any of the following conditions occur: The input voltage is below the 2.4V undervoltage-
lockout (UVLO) threshold.The die temperature exceeds the thermal shutdown
temperature limit of +165°C.The device is in current limit for greater than 10ms.
OC BlankingThe MAX1607 features 10ms overcurrent blanking.
Blanking allows brief current-limit faults, including
momentary short-circuit faults that occur when hot-
swapping a capacitive load, and also ensures that nois issued during power-up. When a load transient
causes the device to enter current limit, an internal
Pin DescriptionMAX1607
OUT
GND
1.24VCURRENT-LIMIT
AMPLIFIER
REPLICA
AMPLIFIER
HOT
CONTROL
CIRCUITRY
10ms
TIMER
Figure 1. Functional Diagram
PINTDFNNAMEFUNCTION6GNDGround
2, 31, 3, 9INInput. P-channel MOSFET source. Connect all IN pins together and bypass with a 1µF capacitor to
ground.ENActive-Low Switch Enable Input. A logic-low turns on the switch.OCOvercurrent Indicator Output. This open-drain output goes low when the device is in thermal
shutdown or undervoltage lockout, or during a sustained (> 10ms) current-limit condition.
6, 7, 82, 4,
8, 10OUTSwitch Output. P-channel MOSFET drain. Connect all OUT pins together and bypass with a 0.1µF
capacitor to ground.EPExposed Paddle (TDFN Package Only). Internally connected to GND. Connect to a large ground
plane to maximize thermal performance. Not intended as an electrical connection point.
