MAX1607 Maxim, MAX1607 Datasheet

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MAX1607

Manufacturer Part Number
MAX1607
Description
The MAX1607 is a current-limited 60mΩ switch with built-in fault blanking
Manufacturer
Maxim
Datasheet

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The MAX1607 is a current-limited 60mΩ switch 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 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
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).
19-1544; Rev 2; 09/07
µMAX is a registered trademark of Maxim Integrated Products, Inc.
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.
Pin Configurations continued at end of data sheet.
Notebook Computers
USB Ports
TOP VIEW
GND
EN
IN
IN
________________________________________________________________ Maxim Integrated Products
®
1
2
4
3
package (MAX1693) and can be
General Description
MAX1607
Pin Configurations
SO
USB Hubs
Docking Stations
6
8
7
5
Applications
OUT
OUT
OUT
OC
USB Current-Limited Switch
in Pin-Compatible Package
♦ SO Package is Pin Compatible with TPS2014,
♦ Accurate Current Limit (0.7A min, 1.0A max)
♦ Guaranteed 0.75A Short-Circuit Protection
♦ 10ms Internal OC Blanking Timeout
♦ No Overcurrent (OC) Signal During Power-Up
♦ 125mΩ max High-Side MOSFET
♦ 500mA Continuous Current
♦ Short-Circuit and Thermal Protection with
♦ 1ms Start-Up Time
♦ Undervoltage Lockout
♦ 14µA Quiescent Supply Current
♦ 1µA max Standby Supply Current
♦ +2.7V to +5.5V Supply Range
♦ UL Recognized #E211935
*EP = Exposed paddle.
+Denotes a lead-free package.
MAX1607ESA
MAX1607ETB+
TPS2015, and TPS2041
Overcurrent Logic Output
+2.7V TO +5.5V
PART
INPUT
ON
OFF
Typical Operating Circuit
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
IN
OC
EN
Ordering Information
MAX1607
GND
PIN-
PACKAGE
8 SO
10 TDFN-EP*
OUT
Features
OUTPUT
T1033-1
CODE
PKG
S8-5
1

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MAX1607 Summary of contents

Page 1

... 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). Notebook Computers ...

Page 2

... OUT Short-Circuit to GND ..........................................Continuous 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 ...

Page 3

ELECTRICAL CHARACTERISTICS (V = +5V -40°C to +85°C, unless otherwise noted.) (Note PARAMETER SYMBOL OPERATING CONDITION Input Voltage V POWER SWITCH Switch Static Drain-Source R DS(ON) On-State Resistance Switch Turn-On Time t Switch Turn-Off Time ...

Page 4

USB Current-Limited Switch in Pin-Compatible Package (V = +5V +25°C, unless otherwise noted QUIESCENT CURRENT vs. INPUT VOLTAGE GND OUT ...

Page 5

T = +25°C, unless otherwise noted CURRENT-LIMIT AND OC RESPONSE CH1 CH2 CH3 CH4 2ms/div CH1 = V , 200mV/div, AC-COUPLED IN CH2 = V , 5V/div OUT CH3 = V , 5V/div OC CH4 ...

Page 6

... If the fault short-circuit condi- tion is not removed, the switch will cycle on and off, resulting in a pulsed output. 1.24V The MAX1607 provides an overcurrent output (OC). A 100kΩ pull-up resistor from provides a logic control signal. This open-drain output goes low when GND any of the following conditions occur: • ...

Page 7

... If the load fault persists beyond the 10ms overcurrent-blanking timeout, the OC output asserts low. Ensure that the MAX1607 input is ade- quately bypassed to prevent input glitches from trigger- ing spurious OC outputs. Input voltage glitches less than 150mV will not cause a spurious OC output. Load- transient faults less than 10ms (typ) will not cause an OC output assertion ...

Page 8

... USB Current-Limited Switch in Pin-Compatible Package (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages TOP VIEW FRONT VIEW 8 _______________________________________________________________________________________ 0∞-8∞ L SIDE VIEW ...

Page 9

... For the latest package outline information www.maxim-ic.com/packages.) _______________________________________________________________________________________ USB Current-Limited Switch in Pin-Compatible Package Package Information (continued) 9 ...

Page 10

... Pages changed at Rev 7–10 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...

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