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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1607 Datasheet

USB Current-Limited Switch in Pin-Compatible Package

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19-1544; Rev 0; 10/99
USB Current-Limited Switch
in Pin-Compatible Package
General Description
The MAX1607 is a current-limited 60mswitch 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 OC signal 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 tempera-
ture. 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-saving
10-pin µMAX package (MAX1693) and can be used for
next-generation designs. The MAX1694 is similar to the
MAX1693, but it has a built-in latch that turns off the
power switch in case of a long-term short-circuit condi-
tion.
Applications
Notebook Computers
USB Ports
USB Hubs
Docking Stations
Pin Configuration
TOP VIEW
GND 1
IN 2
IN 3
EN 4
MAX1607
8 OUT
7 OUT
6 OUT
5 OC
Features
o Pin Compatible with TPS2014, TPS2015, and
TPS2041
o Accurate Current Limit (0.7A min, 1.0A max)
o Guaranteed 0.75A Short-Circuit Protection
o 10ms Internal OC Blanking Timeout
o No Overcurrent (OC) Signal During Power-Up
o 125mmax High-Side MOSFET
o 500mA Continuous Current
o Short-Circuit and Thermal Protection with
Overcurrent Logic Output
o 1ms Start-Up Time
o Undervoltage Lockout
o 14µA Quiescent Supply Current
o 1µA max Standby Supply Current
o +2.7V to +5.5V Supply Range
o UL Recognition Pending
PART
MAX1607ESA
Ordering Information
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
8 SO
Typical Operating Circuit
INPUT
+2.7V TO +5.5V
OFF
ON
IN OUT
MAX1607
OC
EN
GND
OUTPUT
SO
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1607 Datasheet

USB Current-Limited Switch in Pin-Compatible Package

No Preview Available !

USB Current-Limited Switch
in Pin-Compatible Package
ABSOLUTE MAXIMUM RATINGS
IN, EN, OC to 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
Operating Temperature Range (extended) .........-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°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.
ELECTRICAL CHARACTERISTICS
(VIN = +5V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
OPERATING CONDITION
Input Voltage
VIN
POWER SWITCH
Switch Static Drain-Source
On-State Resistance
RDS(ON)
TA = +25°C
TA = 0°C to +85°C
VIN = 4.4V to 5.5V
VIN = 4.4V to 5.5V
VIN = 3V
Switch Turn-On Time
tON ILOAD = 400mA
Switch Turn-Off Time
tOFF ILOAD = 400mA
ENABLE INPUT (EN)
EN High-Level Input Voltage
EN Low-Level Input Voltage
EN Input Current
VIH
VIN = 2.7V to 3.6V
VIN = 3.7V to 5.5V
VIL VIN = 2.7V to 5.5V
VEN = VIN or GND
Start-Up Time
VIN = 5V, COUT = 150µF from EN driven
low to 50% full VOUT
CURRENT LIMIT
Overload Output Current
ILIMIT Force VOUT to 4.5V
Short-Circuit Output Current
ISC OUT shorted to GND
SUPPLY CURRENT
Supply Current, Low-Level Input
VEN = VIN = VOUT = 5.5V
Supply Current, High-Level
Input
Timer not running
IQ VEN = GND, IOUT = 0 Timer running
Supply Leakage Current
VEN = VIN = 5.5V,
VOUT = GND
TA = +25°C
TA = 0°C to +85°C
UNDERVOLTAGE LOCKOUT
Undervoltage Lockout
UVLO Rising edge, 100mV hysteresis
OVERCURRENT (OC)
OC Output Low Voltage
OC Off-State Current
OC Blanking Timeout Period
VOL ISINK = 1mA, VIN = 3V
VIN = VOC = 5V
tBL From overcurrent condition to OC assertion
THERMAL SHUTDOWN
Thermal Shutdown Threshold
MIN TYP MAX UNITS
2.7 5.5 V
60 90
125 m
72 150
80 200 µs
3 6 20 µs
2.0
V
2.4
0.8 V
-1 1 µA
1 ms
700 850 1000 mA
500 700 mA
0.001
14
35
0.01
1
25
2
15
µA
µA
µA
2.0 2.4 2.6
V
0.4 V
1 µA
7 10 13 ms
+165
°C
2 _______________________________________________________________________________________


Part Number MAX1607
Description USB Current-Limited Switch in Pin-Compatible Package
Maker Maxim
Total Page 8 Pages
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