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PDF VCNL4040 Data sheet ( Hoja de datos )
| Número de pieza | VCNL4040 | |
| Descripción | Fully Integrated Proximity and Ambient Light Sensor | |
| Fabricantes | Vishay | |
| Logotipo |  |
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www.vishay.com
VCNL4040
Vishay Semiconductors
Fully Integrated Proximity and Ambient Light Sensor with
Infrared Emitter, I2C Interface, and Interrupt Function
DESCRIPTION
VCNL4040 integrates a proximity sensor (PS), ambient
light sensor (ALS), and a high power IRED into one small
package. It incorporates photodiodes, amplifiers, and
analog to digital converting circuits into a single chip by
CMOS process. The 16-bit high resolution ALS offers
excellent sensing capabilities with sufficient selections to
fulfill most applications whether dark or high transparency
lens design. High and low interrupt thresholds can be
programmed for both ALS and PS, allowing the component
to use a minimal amount of the microcontrollers resources.
The proximity sensor features an intelligent cancellation
scheme, so that cross talk phenomenon is eliminated
effectively. To accelerate the PS response time, smart
persistence prevents the misjudgment of proximity sensing
but also keeps a fast response time. In active force mode, a
single measurement can be requested, allowing another
good approach for more design flexibility to fulfill different
kinds of applications with more power saving.
The patented FiltronTM technology achieves ambient light
spectral sensitivity closest to real human eye response and
offers the best background light cancellation capability
(including sunlight) without utilizing the microcontrollers’
resources. VCNL4040 provides an excellent temperature
compensation capability for keeping output stable under
various temperature configurations. ALS and PS functions
are easily set via the simple command format of I2C (SMBus
compatible) interface protocol. Operating voltage ranges
from 2.5 V to 3.6 V. VCNL4040 is packaged in a lead-free
8-pin molding package, which offers the best
market-proven reliability quality.
FEATURES
• Package type: surface mount
• Dimensions (L x W x H in mm): 4.0 x 2.0 x 1.1
• 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
• 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)
• Programmable IRED sink current
• Intelligent cancellation to reduce cross talk phenomenon
• Smart persistence scheme to reduce PS response time
• Selectable for 12- / 16-bit PS output data
AMBIENT LIGHT FUNCTION
• High accuracy of ALS ±10 %
• Fluorescent light flicker immunity
• Spectrum close to real human eye responses
• Selectable maximum detection range (819 / 1638 / 3277 /
6553) lux with highest sensitivity 0.0125 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
APPLICATIONS
• Handheld device
• Notebook, tablet PC
• Consumer device
• Industrial application
Rev. 1.4, 02-Mar-15
1 Document Number: 84274
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)
VCNL4040
Vishay Semiconductors
I2C bus
DATA
(SDAT)
Start by
Master
WSA7 SA6 SA5 SA4 SA3 SA2 SA1
SA7 SA6 SA5 SA4 SA3 SA2 SA1 SA0
I2CBus Slave Address Byte
ACK by
VCNL4040
Command Code
ACK by
VCNL4040
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
VCNL4040
Data Byte High
Fig. 2 - I2C Bus Timing for Sending Word Command Format
ACK by Stop by
VCNL4040 Master
I2CBus
CLOCK
(SCLK)
I2CBus
DATA
(SDAT)
Start by
Master
WSA7 SA6 SA5 SA4 SA3 SA2 SA1
SA7 SA6 SA5 SA4 SA3 SA2 SA1 SA0
I2CBus Slave Address Byte
ACK by
VCNL4040
Command Code
ACK by
VCNL4040
I2CBus
CLOCK
(SCLK)
I2CBus
DATA
(SDAT)
SA7 SA6 SA5 SA4 SA3 SA2 SA1
Start by
Master
I2CBus Slave Address Byte
R SA7 SA6 SA5 SA4 SA3 SA2
ACK by
VCNL4040
Data Byte Low
SA1 SA0
ACK by
Master
I2CBus
CLOCK
(SCLK)
I2CBus
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. 1.4, 02-Mar-15
5 Document Number: 84274
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
VCNL4040
Vishay Semiconductors
TABLE 9 - REGISTER: PS_MS DESCRIPTION
REGISTER: PS_MS
COMMAND CODE: 0x04_H (0x04 DATA BYTE HIGH)
Command
Bit
Description
White_EN
7
0 = white channel enabled
1 = white channel disabled
PS_MS
6
0 = proximity normal operation with interrupt function
1 = proximity detection logic output mode enable
Reserved
5:3 (0:0:0)
LED_I
(0 : 0 : 0) = 50 mA; (0 : 0 : 1) = 75 mA; (0 : 1 : 0) = 100 mA; (0 : 1 : 1) = 120 mA
2 : 0 (1 : 0 : 0) = 140 mA; (1 : 0 : 1) = 160 mA; (1 : 1 : 0) = 180 mA; (1 : 1 : 1) = 200 mA
LED current selection setting
TABLE 10 - REGISTER PS_CANC_L AND PS_CANC_M DESCRIPTION
COMMAND CODE: 0x05_L (0x05 DATA BYTE LOW) AND 0x05_H(0x05 DATA BYTE HIGH)
Register
Bit
Description
PS_CANC_L
7 : 0 0x00 to 0xFF, PS cancellation level setting_LSB byte
PS_CANC_M
7 : 0 0x00 to 0xFF, PS cancellation level setting_MSB byte
TABLE 11 - REGISTER: PS_THDL_L AND PS_THDL_M DESCRIPTION
COMMAND CODE: 0x06_L (0x06 DATA BYTE LOW) AND 0x06_H(0x06 DATA BYTE HIGH)
Register
Bit
Description
PS_THDL_L
7 : 0 0x00 to 0xFF, PS interrupt low threshold setting_LSB byte
PS_THDL_M
7 : 0 0x00 to 0xFF, PS interrupt low threshold setting_MSB byte
TABLE 12 - REGISTER: PS_THDH_L AND PS_THDH_M DESCRIPTION
COMMAND CODE: 0x07_L (0x07 DATA BYTE LOW) AND 0x07_H(0x07 DATA BYTE HIGH)
Register
Bit
Description
PS_THDH_L
7 : 0 0x00 to 0xFF, PS interrupt high threshold setting_LSB byte
PS_THDH_M
7 : 0 0x00 to 0xFF, PS interrupt high threshold setting_MSB byte
TABLE 13 - READ OUT REGISTER DESCRIPTION
Register
Command Code
Bit
Description
PS_Data_L
0x08_L (0x08 data byte low)
7 : 0 0x00 to 0xFF, PS LSB output data
PS_Data_M
0x08_H (0x08 data byte high)
7 : 0 0x00 to 0xFF, PS MSB output data
ALS_Data_L
0x09_L (0x09 data byte low)
7 : 0 0x00 to 0xFF, ALS LSB output data
ALS_Data_M
0x09_H (0x09 data byte high)
7 : 0 0x00 to 0xFF, ALS MSB output data
White_Data_L
0x0A_L (0x0A data byte low)
7 : 0 0x00 to 0xFF, white LSB output data
White_Data_M
0x0A_H (0x0A data byte high)
7 : 0 0x00 to 0xFF, white LSB output data
Reserved
0x0B_L (0x0B data byte low)
7 : 0 Default = 0x00
INT_Flag
0x0B_H (0x0B data byte high)
7 Reserved
6 PS_SPFLAG, 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 Reserved
2 Reserved
1 PS_IF_CLOSE, PS rises above PS_THDH INT trigger event
0 PS_IF_AWAY, PS drops below PS_THDL INT trigger event
ID_L
0CH_L (0CH data byte low)
7 : 0 86H for MP version sample, device ID LSB byte
ID_M
0CH_H (0CH data byte high)
7 : 6 (0 : 0)
5 : 4 (0 : 0) Slave address = 0x60 (7-bit)
3 : 0 Version code (0 : 0 : 0 : 1), device ID MSB byte
Rev. 1.4, 02-Mar-15
11 Document Number: 84274
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 23 Páginas | |
| PDF Descargar | [ Datasheet VCNL4040.PDF ] | |
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