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 (active-low 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 active-low 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 protection
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-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
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
- Docking Stations
- Notebook Computers
- USB Hubs
- USB Ports
