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VCNL36687S

www.vishay.com

Vishay Semiconductors

Rev. 1.2, 21-Sep-2018

Document Number: 84907

For technical questions, contact: sensorstechsupport@vishay.com

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

Proximity Sensor With VCSEL in Single Package, I

C Interface

DESCRIPTION

VCNL36687S integrates a proximity and a high power

VCSEL (vertical-cavity surface-emitting laser) into one small

package. It incorporates photodiodes, amplifiers, and

analog to digital converting circuits into a single chip by

CMOS process. PS programmable interrupt features of

individual high and low thresholds offers the best utilization

of resource and power saving on the microcontroller. With

just 20 mA pulse current, the VCNL36687S can detect the

Kodak Gray Card in a distance of 20 cm, where other

sensors need 200 mA.

The 12 bits proximity sensing function uses an intelligent

cancellation scheme, so that cross talk is eliminated

effectivitely. To accelerate the PS response time, smart

persistence prevents the misjudgment of proximity sensing

but also allows for a fast response time. Active force mode,

one time trigger by one instruction, is a feature offering more

power saving.

PS functions are easily operated via the simple command

format of I

C (SMBus compatible) interface protocol.

Operating voltage ranges from 1.65 V to 1.95 V.

VCNL36687S is packaged in a lead (Pb)-free 8 pin molding

package, which offers the best market-proven reliability

quality.

APPLICATIONS

• Proximity sensor especially for battery operated devices

• Mobile devices (e.g. smart phones, tablets) for touch

screen locking, power saving etc.

•VR

/ AR headsets to detect if the headset has been put on

or taken off

FEATURES

• Package type: surface-mount

• Dimensions (L x W x H in mm): 3.05 x 2 x 1.0

• Integrated modules: proximity sensor (PS), and

VCSEL in single package

• Interrupt function

• Smallest light hole opening design

• Supply voltage range V

: 1.65 V to 1.95 V

• Communication via I

C interface

•I

C bus H-level range: 1.65 V to 3.6 V

• Floor life: 168 h, MSL 3, according to J-STD-020

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

PROXIMITY FUNCTION

• Immunity to red glow (940 nm VCSEL)

• Programmable I

VCSEL

sink current

• Intelligent cancellation to reduce cross talk phenomenon

• Smart persistence scheme to reduce PS response time

• 12 bits PS output data

• Programmable interrupt function for PS with upper and

lower thresholds

• Adjustable persistence to prevent false triggers for PS

PIN DEFINITION

Note

(1)

Base on VCSEL period = 8 ms, 16 ms, 32 ms, and 64 ms

1 GND 5 VCSEL_C

6INT

7SDA

4 VCSEL_A 8 SCL

PRODUCT SUMMARY

PART

NUMBER

OPERATING

RANGE

(mm)

OPERATING

VOLTAGE RANGE

(V)

C BUS

VOLTAGE RANGE

(V)

VCSEL DRIVING

CURRENT

(1)

(mA)

OUTPUT

CODE

ADC RESOLUTION

PROXIMITY /

AMBIENT LIGHT

VCNL36687S 200 1.65 to 1.95 1.65 to 3.6 20 12 bit, I

C12 bit / -

Summary of content (16 pages)

PAGE 1
VCNL36687S www.vishay.com Vishay Semiconductors Proximity Sensor With VCSEL in Single Package, I2C Interface FEATURES • Package type: surface-mount • Dimensions (L x W x H in mm): 3.05 x 2 x 1.0 • Integrated modules: proximity sensor (PS), and VCSEL in single package • Interrupt function • Smallest light hole opening design • Supply voltage range VDD: 1.65 V to 1.95 V • Communication via I2C interface DESCRIPTION • I2C bus H-level range: 1.65 V to 3.
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VCNL36687S www.vishay.com Vishay Semiconductors ORDERING INFORMATION ORDERING CODE PACKAGING VOLUME (1) REMARKS VCNL36687S Tape and reel MOQ: 2500 pcs, 2500 pcs/reel 3.05 mm x 2.0 mm x 1.0 mm Note (1) MOQ: minimum order quantity ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified) PARAMETER SYMBOL MIN. MAX. UNIT Supply voltage TEST CONDITION VDD 1.65 1.
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VCNL36687S www.vishay.com Vishay Semiconductors BLOCK DIAGRAM VDD VPP Pin 3 Anode Pin 2 Pin 4 PS timing controller PS buffer DSP VCSEL PS PD Oscillator INT Pin 6 SCL Pin 8 SDA Pin 7 Cathode Pin 5 Current driver Temperature sensor I2C bus logic control Pin 1 GND Rev. 1.2, 21-Sep-2018 Document Number: 84907 3 For technical questions, contact: sensorstechsupport@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE.
PAGE 4
VCNL36687S www.vishay.com Vishay Semiconductors I2C BUS TIMING CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified) PARAMETER STANDARD MODE SYMBOL MIN. MAX. f(I2CCLK) 10 t(BUF) 4.7 t(HDSTA) Repeated start condition setup time Stop condition setup time Data hold time Data setup time Clock frequency Bus free time between start and stop condition Hold time after (repeated) start condition; after this period, the first clock is generated FAST MODE UNIT MIN. MAX. 100 10 400 kHz - 1.
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VCNL36687S www.vishay.com Vishay Semiconductors PARAMETER TIMING INFORMATION I2C BUS CLOCK (SCLK) I2C BUS DATA (SDAT) SA7 SA5 SA6 SA4 SA3 W SA1 SA2 Start by master SA7 SA6 SA5 SA4 SA3 SA1 SA2 SA0 ACK by VCNL36687S ACK by VCNL36687S 2 I C bus slave address byte Command code I2C BUS CLOCK (SCLK) I2C BUS DATA (SDAT) SA7 SA6 SA4 SA5 SA2 SA3 SA7 SA0 SA1 SA6 SA4 SA5 SA3 SA2 SA1 SA0 Stop by ACK by VCNL36687S master ACK by VCNL36687S Data byte low Data byte high Fig.
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VCNL36687S www.vishay.com Vishay Semiconductors TYPICAL PERFORMANCE CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified) Axis Title Axis Title 100 100 10000 10000 1000 60 50 40 100 30 20 1000 1st line 2nd line 70 IF - Forward Current (mA) 1st line 80 1st line 2nd line Relative Response (%) 1st line 90 10 100 10 0 400 500 600 700 800 900 1 10 1000 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Wavelength (nm) 2nd line VF - Forward Voltage (V) 2nd line Fig.
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VCNL36687S www.vishay.com Vishay Semiconductors APPLICATION INFORMATION Pin Connection with the Host VCNL36687S integrates proximity sensor and VCSEL all together with an I2C interface. It is easy for the baseband (CPU) to access PS output data via I2C interface without additional software algorithms. The hardware schematic is shown in the following diagram.
PAGE 8
VCNL36687S www.vishay.com Vishay Semiconductors Function Description For proximity sensor function, VCNL36687S supports different kinds of mechanical designs to achieve the best proximity detection performance for any color of object with more flexibility. The basic PS function settings, such as period, persistence, INT, and shut down are handled by the register: PS_CONF1. Period controls the PS response time. Integration time represents the duration of the energy being received.
PAGE 9
VCNL36687S www.vishay.com Vishay Semiconductors Command Register Format VCNL36687S provides an 8-bit command register for PS controlling independently. The description of each command format is shown in the following tables.
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VCNL36687S www.vishay.
PAGE 11
VCNL36687S www.vishay.com Vishay Semiconductors Threshold Window Setting • Programmable PS Threshold VCNL36687S provides both high and low thresholds 12-bit data setting for PS (register: PS_THDL, PS_THDH). • PS Persistence The PS persistence function (PS_PERS, 1\2\3\4) helps to avoid false trigger of the PS INT.
PAGE 12
VCNL36687S www.vishay.com Vishay Semiconductors PACKAGE INFORMATION Side View Bottom View 2 ± 0.1 1 ± 0.05 0.85 5 1 8 SENSOR 0.775 0.775 0.575 (8x) 0.6 1.23 1.34 3.05 ± 0.1 VCSEL 4 0.775 0.4 Top View Ø 0.94 1 0.5 1 GND 5 VCSEL_C 2 VPP 6 INT 3 VDD 7 SDA 4 VCSEL_A 8 SCL Fig. 10 - VCNL36687S Package Dimensions LAYOUT PAD INFORMATION Pad Center to Center 1.350 0.775 0.625 (8 x) 0.750 0.775 PAD Center to Center 0.775 0.3 0.6 Fig.
PAGE 13
VCNL36687S www.vishay.com Vishay Semiconductors APPLICATION CIRCUIT BLOCK REFERENCE Vpull_up VDD VVCSEL 1 μF 2.2 kΩ 2.2 kΩ VDD SCL SCL 1 μF 2 3 8 VPP 7 SDA SDA Anode 10 kΩ 4 VCNL36687S Baseband GPIO 6 Cathode 5 INT GND 1 Fig. 12 - VCNL36687S Application Circuit (normal operation with interrupt function) RECOMMENDED STORAGE AND REBAKING CONDITIONS PARAMETER MIN. MAX.
PAGE 14
VCNL36687S www.vishay.com Vishay Semiconductors RECOMMENDED INFRARED REFLOW Soldering conditions which are based on J-STD-020 C IR REFLOW PROFILE CONDITION PARAMETER CONDITIONS Peak temperature TEMPERATURE TIME 260 °C + 5 °C / - 5 °C (max.: 265 °C) 10 s 150 °C to 200 °C 60 s to 180 s Preheat temperature range and timing Timing within 5 °C to peak temperature Timing maintained above temperature / time Timing from 25 °C to peak temperature - 10 s to 30 s 217 °C 60 s to 150 s - 8 min (max.
PAGE 15
VCNL36687S www.vishay.com Vishay Semiconductors TAPE PACKAGING INFORMATION in millimeters Rev. 1.2, 21-Sep-2018 Document Number: 84907 15 For technical questions, contact: sensorstechsupport@vishay.com 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.
PAGE 16
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