NX5P2190UK集成電路（IC）的配電開關(guān)負載驅(qū)動器規(guī)格書PDF中文資料

General description

The NX5P2190 is an advanced power switch with adjustable current limit. It includes

under-voltage and over-voltage lockout, over-current, over-temperature, reverse bias and

in-rush current protection circuits. These circuits are designed to isolate a voltage source

from a VBUS interface pin automatically when a fault occurs. The device features two

power switch terminals, one input (VINT) and one output (VBUS). A current limit input

(ILIM) defines the over-current and in-rush current limit, and a voltage detect output

(VDET) monitors the voltage level on VBUS. An open-drain fault output (FAULT) indicates

when a fault condition occurs. An enable input (EN) controls the state of the switch. When

EN is set LOW the device enters a low-power mode, disabling all protection circuits

except the under-voltage lockout. The low-power mode can be entered at anytime unless

the over temperature protection circuit has been triggered.

Designed for operation from 3 V to 5.5 V, the NX5P2190 is a complete solution for power

domain isolation and protection applications. The enable input includes integrated logic

level translation making the device compatible with lower voltage processors and

controllers.

Features and benefits

? Wide supply voltage range from 3 V to 5.5 V

? 30 V tolerant on VBUS

? ISW maximum 2 A continuous current

? Very low ON resistance: 100 m? (maximum) at a supply voltage of 4.0 V

? Low-power mode (ground current 20 ?A typical)

? 1.8 V control logic

? Soft start turn-on slew rate

? Protection circuitry

? Over-temperature protection

? Over-current protection with low current output mode

? Reverse bias current/Back drive protection

? Over-voltage lockout

? Under-voltage lockout

? Analog voltage limited VBUS monitor path

? ESD protection:

? HBM JDS-001 Class 2 exceeds 2 kV

? IEC61000-4-2 contact discharge exceeds 8 kV for pins VBUS

? Specified from ?40 ?C to +85 ?C

Applications

? USB OTG applications