VCNL4100

www.vishay.com

Vishay Semiconductors

Rev. 1.2, 30-Aug-16

13

Document Number: 84319

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

Interrupt Flag

Register: INT_Flag represents all of interrupt trigger status for ALS and PS. Any flag value changes from “0” to “1” state, the

level of INT pin will be pulled low. As long as host reads INT_Flag data, the bit will change from “1” state to “0” state after reading

out. The INT level will be returned to high afterwards.

PROXIMITY DETECTION HYSTERESIS

A PS detection hysteresis is important to keep the PS state in a certain range of detection distance. For example, PS INT asserts

when PS value over PS_THDH. Host switches on panel backlight and then clears INT. When PS value is less than PS_THDL,

host switches off panel backlight. Any PS value lower than PS_THDH or higher than PS_THDL PS INT will not be asserted. Host

keeps the same state.

PACKAGE INFORMATION in millimeters

Fig. 12 - VCNL4100 Package Dimensions

3.0 ± 0.1

1

5

6

10

Ø 1.7

Ø 2.05

Top View

10

5

1

1.0

1.2

0.8

1

2

3

4

5

10

9

8

7

6

Bottom View

1.8 ± 0.1

Side View

GND

LED_Cathode

VDD

NC

LED-

LED+

NC

INT

SDAT

SCLK

1

2

3

4

5

6

7

8

9

10

1.7

For Reflow Soldering (PCB Footprint)

1.2

6

Sensor

LED