ETA6027 输入限流OCP芯片

ETA6027 输入限流OCP芯片

DESCRIPTION

The ETA6027 is a load switch which provides full

protection to systems and loads which may

encounter large current conditions.

ETA6027 offersa 70mΩ current-limited switch which can operate

over an input voltage range of 2.1-6V. The current

limit can be externally programmed by a precision

resistor, ranges from 75mA to 2.2A. Switch control

is by a logic input (EN) capable of interfacing

directly with low voltage control signals. Current is

prevented from flowing when the switch is off and

the output voltage is higher than the input voltage.

ETA6027 also features thermal shutdown

protection which shuts off the switch to prevent

damage to the part when a continuous over-current

condition causes excessive heating. When the

switch current reaches the current limit, the parts

operate in a constant-current mode to prohibit

excessive currents from causing damage. The

ETA6027 will not turn off after a current limit fault,

but will rather remain in the constant current mode

indefinitely. The nFAULT output asserts low during

over-current and reverse-voltage conditions.

ETA6027 is available in three types of package:

SOT23-5, SOT23-6, DFN2x2-6L

FEATURES

 Input Operating Voltage Range: 2.1V to 6V

 7.5V Input Standoff Voltage

 6.1V OVP

 Up to 2.2A Max Load current

 Programmable Current-limit: 75mA to 2200mA

 Accurate Current-Limit Threshold at 1.7A: +/-5%

 Fast Over-Current Response

 Fault Flag Output: nFAULT Pin

 Reversed Input-Output Current blocking

 Thermal Shutdown, UVLO protection

 Tiny SOT23-5, SOT23-6, DFN2x2-6L Package

APPLICATIONS

 USB Ports and Hubs

 Digital TVs

 Set-Top Boxes

 VOIP Phones