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PDF VCNL4100 Data sheet ( Hoja de datos )
| Número de pieza | VCNL4100 | |
| Descripción | High Sensitivity Long Distance Proximity and Ambient Light Sensor | |
| Fabricantes | Vishay | |
| Logotipo |  |
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www.vishay.com
VCNL4100
Vishay Semiconductors
High Sensitivity Long Distance Proximity and
Ambient Light Sensor with I2C Interface
DESCRIPTION
VCNL4100 integrates a high sensitivity long distance
proximity sensor (PS), ambient light sensor (ALS), and
940 nm IRED into one small package. It incorporates
photodiodes, amplifiers, and analog to digital converting
circuits into a single chip using a CMOS process. The 16-bit
high resolution ALS offers excellent sensing capabilities
with sufficient selections to fulfill most applications whether
a dark or high transparency lens design. VCNL4100 offers
individual programmable high and low threshold interrupt
features for the best utilization of resources and power
saving on the microcontroller. For the 8-bit proximity
sensing function, VCNL4100 has a built-in intelligent
cancellation scheme that eliminates background light
issues. The persistence feature prevents false judgment of
proximity sensing due to ambient light noise.
The adoption of the patented FiltronTM technology achieves
the closest ambient light spectral sensitivity to real human
eye responses. VCNL4100 provides excellent temperature
compensation capability for keeping the output stable under
changing temperature. ALS and PS functions are easily
operated via the simple command format of I2C (SMBus
compatible) interface protocol. Operating voltage ranges
from 2.5 V to 3.6 V.
PIN DEFINITION
5 4 32 1
FEATURES
• Package type: surface mount
• Dimensions (L x W x H in mm): 8.0 x 3.0 x 1.8
• Integrated modules: infrared emitter (IRED),
ambient light sensor (ALS), proximity sensor
(PS), and signal conditioning IC
• Operates ALS and PS in parallel structure
• FiltronTM technology adoption for robust
background light cancellation
• Supports low transmittance (dark) lens design
• Temperature compensation: -40 °C to +85 °C
• Low power consumption I2C (SMBus compatible)
interface
• Floor life: 168 h, MSL 3, according to J-STD-020
• Output type: I2C bus (ALS / PS)
• Operation voltage: 2.5 V to 3.6 V
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
PROXIMITY FUNCTION
• Immunity to red glow (940 nm IRED)
• Intelligent background light cancellation
• Smart persistence scheme to reduce PS response time
• Proximity distance up to 1 m
AMBIENT LIGHT FUNCTION
• Fluorescent light flicker immunity
• Spectrum close to real human eye responses
• Selectable maximum detection range (655 / 1311 / 2621 /
5243) lux with highest sensitivity 0.01 lux/step
INTERRUPT
• Programmable interrupt function for ALS and PS with
upper and lower thresholds
• Adjustable persistence to prevent false triggers for ALS
and PS
6 7 8 9 10
Top View
1 GND 6
2 LED_Cathode 7
3 VDD 8
4 NC 9
5
LED-
10
LED+
NC
INT
SDAT
SCLK
APPLICATIONS
• Presence detection to activate displays in printers,
copiers, and home appliances
• Collision detection in robots and toys
• Proximity sensing and lighting control in offices, corridors
and public buildings
• Vehicle occupancy detection in parking lots
• Proximity detection in lavatory appliances
Rev. 1.2, 30-Aug-16
1 Document Number: 84319
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
1 page  
www.vishay.com
PARAMETER TIMING INFORMATION
I2C BUS
CLOCK
(SCLK)
VCNL4100
Vishay Semiconductors
I2C BUS
DATA
(SDAT)
Start by
Master
WSA7 SA6 SA5 SA4 SA3 SA2 SA1
SA7 SA6 SA5 SA4 SA3 SA2
I2C Bus Slave Address Byte
ACK by
VCNL4100
Command Code
SA1 SA0
ACK by
VCNL4100
I2C BUS
CLOCK
(SCLK)
I2C BUS
DATA
(SDAT)
SA7 SA6 SA5 SA4 SA3 SA2 SA1 SA0
SA7 SA6 SA5 SA4 SA3 SA2 SA1 SA0
Data Byte Low
ACK by
VCNL4100
Data Byte High
Fig. 2 - I2C Bus Timing for Sending Word Command Format
ACK by Stop by
VCNL4100 Master
I2C BUS
CLOCK
(SCLK)
I2C BUS
DATA
(SDAT)
Start by
Master
WSA7 SA6 SA5 SA4 SA3 SA2 SA1
SA7 SA6 SA5 SA4 SA3 SA2
I2C Bus Slave Address Byte
ACK by
VCNL4100
Command Code
SA1 SA0
ACK by
VCNL4100
I2C BUS
CLOCK
(SCLK)
I2C BUS
DATA
(SDAT)
SA7 SA6 SA5 SA4 SA3 SA2 SA1
Start by
Master
I2C Bus Slave Address Byte
R SA7 SA6 SA5 SA4 SA3 SA2
ACK by
VCNL4100
Data Byte Low
SA1 SA0
ACK by
Master
I2C BUS
CLOCK
(SCLK)
I2C BUS
DATA
(SDAT)
SA7 SA6 SA5 SA4 SA3 SA2 SA1 SA0
Data Byte High
ACK by
Master
Stop by
Master
Fig. 3 - I2C Bus Timing for Receiving Word Command Format
Rev. 1.2, 30-Aug-16
5 Document Number: 84319
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
5 Page 
www.vishay.com
VCNL4100
Vishay Semiconductors
TABLE 13 - REGISTER: PS_THDH DESCRIPTION
PS_THDH
COMMAND CODE: 06H_H (06H DATA BYTE HIGH)
Register
Bit
Description
PS_THDH
7 : 0 00H to FFH, PS high interrupt threshold setting
TABLE 14 - REGISTER: RESERVE COMMAND DESCRIPTION
Reserved
COMMAND CODE: 07H_L (07H DATA BYTE LOW)
Register
Bit
Description
Reserved
7 : 0 Default = 00H
TABLE 15 - REGISTER: RESERVE COMMAND DESCRIPTION
Reserved
COMMAND CODE: 07H_H (07H DATA BYTE HIGH)
Register
Bit
Description
Reserved
7 : 0 Default = 00H
TABLE 16 - READ OUT REGISTER DESCRIPTION
REGISTER
COMMAND CODE
BIT
DESCRIPTION
PS_Data
08H_L (08H data byte low)
7 : 0 00H to FFH, PS output data
Reserved
08H_H (08H data byte high)
7 : 0 Default = 00H
ALS_Data_L
09H_L (09H data byte low)
7 : 0 00H to FFH, ALS LSB output data
ALS_Data_M
09H_H (09H data byte high)
7 : 0 00H to FFH, ALS MSB output data
Reserved
0AH_L (0AH data byte low)
7:0
Reserved
0AH_H (0AH data byte high)
7:0
Reserved
0BH_L (0BH data byte low)
7 : 0 Default = 00H
INT_Flag
0BH_H (0BH data byte high)
7 PS_SPF_LEAVE, PS leaving protection mode
6 PS_SPF_ENTER, PS entering protection mode
5 ALS_IF_L, ALS crossing low THD INT trigger event
4 ALS_IF_H, ALS crossing high THD INT trigger event
3 Default = 0, reserved
2 Default = 0, reserved
1 PS_IF_CLOSE, PS rise above PS_THDH INT trigger event
0 PS_IF_AWAY, PS drop below PS_THDL INT trigger event
Adjustable Sampling Time
VCNL4100’s embedded LED driver drives the external IRED with the “LED CATHODE” pin by a pulsed duty cycle. The
IRED on / off duty ratio can be programmable by I2C command at register: PS_Duty is related to the current consumption and
PS response time. The higher the duty ratio selected, the faster response time achieved with higher power consumption.
Rev. 1.2, 30-Aug-16
11 Document Number: 84319
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet VCNL4100.PDF ] | |
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