General description

The NX20P5090 is an advanced 5 A unidirectional power switch for USB PD. It includes

under voltage lockout, over voltage lockout, reverse current protection and

over-temperature protection circuits. It is designed to automatically isolate the power

switch terminals when a fault condition occurs. Both VBUS and VINT pins have 29 V

tolerance in shutdown mode. Two NX20P5090 chips can be used in parallel to support

dual power inputs connecting to the same charging circuit.

The device has a default 23 V over voltage protection threshold, and the OVP threshold

can be adjusted by using an external resistor divider on OVLO pin. A 15 ms de-bounce

time is deployed every time before the device is switched ON, followed by a soft start to

limit the inrush current.

Designed for operation from 2.5 V to 20 V, it is used in USB PD power control applications

to offer essential protection and enhance system reliability.

NX20P5090 is offered in a small 15 bump, 2.56 x 1.54 x 0.555 mm WLCSP package.

Features and benefits

 Wide supply voltage range from 2.5 V to 20 V

 ISW maximum 5 A continuous current

 29 V tolerance on both VBUS and VINT pin

 30 m (typical) Low ON resistance

 Adjustable VBUS over voltage protection

 Built in slew rate control for inrush current limit

 All time two level reverse-current protection

 Protection circuitry

 Over-Temperature Protection

 Over-Voltage Protection

 Under-Voltage Lockout

 Reverse Current Protection

 Surge protection:

 IEC61000-4-5 exceeds ±90 V on VBUS without capacitor

 IEC61000-4-5 exceeds ±100 V on VBUS with 22 uF capacitor

 ESD protection

 IEC61000-4-2 contact discharge exceeds 8 kV on VBUS

 HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 2 kV

 CDM AEC standard Q100-01 (JESD22-C101E)

 Specified from 40 C to +85 C

Applications

 Smart and feature phones

 Tablets, eBooks

 Notebooks