DPS1135

Document number: DS40655 Rev. 3 - 2

2 of 17

www.diodes.com

October 2020

© Diodes Incorporated

DPS1135

Typical Application Circuit

DPS1135

1

2

3

4

5

6

IN

IN

IN

EN

FRS

GND

17

16

15

14

13

12

OUT

OUT

OUT

VLIM

ILIM

DV/DT

RVLIM

220k

Ω

RILIM

30k

Ω

CDV/DT

1nF

COUT

10

μF

CIN

10

μF

RPU

10k

Ω

3.3V

OFF

ON

VEN

VFRS

CVREG

0.1

μF

VIN

VOUT

SRC

RIMON

50k

Ω

DOUT

Schottky

Diode

CIMON

100pF

CFLT

0.1uF

Pin Descriptions

Pin Number

Pin Name

Type

Function

1, 2, 3

IN

P

Power Supply and Input Port.

4

EN

I

Enable Input; Active High.

0 = Device Off

1 = Device On

This pin must not be left floating.

5

FRS

I

Fast Role Swap Control. This pin enables the Fast Role Swap sequence defined in the USB Power

Delivery Specification Release 3.0, V1.0a.

6

GND

GND

Device Ground.

7

VREG

I/O

Voltage Regulator. A 0.1µF is recommended between this pin and GND.

8

DISC1

I

IN Port Discharge Control.

1 = Port Voltage to be Discharged

0 = Disabled

9

DISC2

I

OUT Port Discharge Control.

1 = Port Voltage to be Discharged

0 = Disabled

10

FAULTB

O

Fault Status Indicator. An external pull-up resistor is required. A 0.1µF capacitor is recommended

between this pin and GND. This active-low pin is tied to GND when not used.

11

IMON

O

Current Monitor. A 100pF capacitor and a resistor connected in parallel between this pin and GND

creates a positive average voltage proportional to the current flowing through the device. This pin can

be left floating if current monitoring is not required.

12

DV/DT

I/O

Ramp-up Control. A capacitor between this pin and GND sets the ramp-up rate.

13

ILIM

I/O

Current Limit Setting. A resistor between this pin and GND sets the overcurrent limit of the OUT port.

14

VLIM

I/O

Voltage Limit Setting. A resistor between this pin and GND sets the over-voltage limit of the IN port.

15, 16, 17

OUT

O

Output Port.

18

(Exposed Pad)

SRC

I/O

Common Source. The exposed pad of the V-QFN4040-17 package must not be connected to any

signal.

0.1

F