VCNL4100 Datasheet, PDF (13/17 Pages) Vishay Siliconix – High Sensitivity Long Distance Proximity and Ambient Light Sensor with I2C Interface

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VCNL4100
Vishay Semiconductors
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
Top View
Side View
Bottom View
3.0 ± 0.1
1.8 ± 0.1
1.0
6
5
5
6
6
5
LED Ø 1.7
Sensor _{Ø 2.05}
7
4
8
3
9
2
10
1
10
1
1
10
1.2 0.8
For Reflow Soldering (PCB Footprint)
1
GND
6
2 LED_Cathode 7
3
VDD
8
4
NC
9
5
LED-
10
1.2
1.7
Fig. 12 - VCNL4100 Package Dimensions
LED+
NC
INT
SDAT
SCLK
Rev. 1.2, 30-Aug-16
13
Document Number: 84319
For technical questions, contact: [e-mail]
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ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000