ALS-PDIC17-77B/TR8 - Everlight International Corp.

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Release Date:2013-06-04 08:06:14.0

Ambient Light Sensor

Surface - Mount

ALS-PDIC17-77B/TR8

Features

‧Close responsively to the human eye spectrum

‧Light to Current, analog output

‧Good output linearity across wide illumination range

‧Low sensitivity variation across various light sources

‧Operating temperature performance, -40oC to 85oC

‧Wide supply voltage range, 1.8V to 5.5V

‧Size : 1.6mm(L)*1.6mm(W)*0.55mm(H)

‧RoHS compliant, Pb Free and halogen free package

Description

The ALS-PDIC17-77B/TR8 is consisting of a photodiode and a current amplification IC. EVERLIGHT ALS series

product is a good effective solution to the power saving of display backlighting of mobile appliances, such as the

mobile phones, NB and PDAs. Due to the high rejection ratio of infrared radiation, the spectral response of the

ambient light sensor is close to that of human eyes.

Applications

‧

Detection of ambient light to control display backlighting

Mobile devices – mobile phones, PDAs

Computing device – TFT LCD monitor for Notebook computer

Consumer device – TFT LCD TV, plasma TV, video camera, digital camera, toys

‧

Automatic residential and commercial management

‧

Automatic contrast enhancement for electronic signboard

‧

Ambient light monitoring device for daylight and artificial light

– Street light, CCD/CCTV

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Ambient Light Sensor

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ALS-PDIC17-77B/TR8

Package Dimensions

Top View

Bottom View

Unit : mm

Tolerances :

0.1mm

Light Receiving Area

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ALS-PDIC17-77B/TR8

Absolute Maximum Ratings

Parameter Symbol Rating Unit

Supply Voltage Vcc -0.5~6.0 V

Output Voltage VoVcc-0.8 V

Output Photo Current IPH 0 ~ 5 mA

Operating Temperature Range Topr -40 ~ +85 °C

Storage Temperature Range Tstg -40 ~ +100 °C

Soldering Temperature Range [Note1] Tsol 260 °C

Note1: For detail reflow time and the recommended temperature profile, please refer to page 9.

Recommended Operating Conditions

Parameter Symbol Min. Max. Unit

Operating Temperature Topr -40 +85 °C

Supply Voltage Vcc 1.8 5.5 V

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ALS-PDIC17-77B/TR8

Electrical and Optical Characteristics (Ta=25℃)

Parameter Symbol Min. Typ. Max. Unit Test Condition

Supply Current Icc -- 480 950 μA Vcc = 3V, Ev = 1000Lux

RL = 1kΩ [Note2]

Dark Current ID-- -- 100 nA Vcc=3V , Ev= 0Lux

IPH1 40 60 80 μA Vcc=3V; Ev= 100Lux

[Note1] [Fig.2]

IPH2 -- 96 -- μA Vcc=3V; Ev= 100Lux

[Note2] [Fig.2]

Light Current

IPH3 400 600 800 μA Vcc=3V; Ev=1000Lux

[Note1] [Fig.2]

Photocurrent Ratio IPH2 / IPH1 -- 1.6 -- -- --

Saturation Output Voltage Vo2.20 2.35 -- V Vcc=3V; Ev= 100Lx,

RL=150KΩ [Fig.3]

Peak Sensitivity

Wavelength λp-- 580 -- nm --

Rise Time tr-- 75 -- μs

Fall Time tf-- 200 -- μs

Delay Time td-- 150 -- μs

Switching

Time

Storage Time ts-- 65 -- μs

Vcc=3V,RL=5kΩ



Ev = 1000 Lux

[Fig.4]

Note:

1. White Fluorescent light (Color Temperature = 6500K) is used as light source. However, White LED is substituted in

mass production.

2. Illuminance by CIE standard illuminant-A / 2856K, incandescent lamp.

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ALS-PDIC17-77B/TR8

PDIC15

21C

Fig.1 Block Diagram

Fig.2 Measurement Method of

Light Current Fig.3 Measurement Method of Saturation

Output Voltage

Fig.4 Switching Time Measurement Method

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ALS-PDIC17-77B/TR8

234567

0.0

0.4

0.8

1.2

1.6

Ta = 25℃

Relative light current

Supply voltage (V)

200 300 400 500 600 700 800 900 1000 1100 1200

100

Relative sensitivity

Wavelength (nm)

1 10 100 1000 10000

1E-3

0.01

0.1

Incandescent lamp RL = 100 kΩ

Fluorescent light RL = 100 kΩ

Incandescent lamp RL = 30 kΩ

Fluorescent light RL = 30 kΩ

Incandescent lamp RL = 5.1 kΩ

Fluorescent light RL = 5.1 kΩ

Vcc = 3V

Ta = 25℃

Output voltage (V)

Illuminance (Lux)

Typial Electrical and Optical Characteristics Curves

Fig.5 Light Current vs. Illuminance Fig.6 Dark Current vs. Temperature

Fig.7 Light current vs. Temperature Fig.8 Light current vs. Supply Voltage

-60 -40 -20 0 20 40 60 80 100

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0 VCE = 3V

EV = 100 Lux

Relative light current

Temperature ( )℃

Fig.9 Spectral Response Fig.10 Output Voltage vs. Illuminance

Light source: White LED

Vcc = 3V

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Fig.11 Consumption current vs. Illuminance Fig.12 Relative consumption current vs. Temperature

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ALS-PDIC17-77B/TR8

Converting Photocurrent to Voltage

GND

Vout

Vcc

Amp

Current

Iph

Note:

1. The output voltage (Vout) is the product of photocurrent (IPH) and loading resistor (RL)

2. A right loading resistor shall be chosen to meet the requirement of maximum ambient light,

and output saturation voltage:

Vout(max.) = Iout(max.) × RL≦Vout(saturation)＝Vcc－0.8V

3. To avoid 60Hz ripple from fluorescent lamps, we suggest that the time constant must be

greater than 0.5 second:

RL × CL≧0.5 (empirical data)

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Recommended method of storage

1. Do not open moisture proof bag before devices are ready to use.

2. Shelf life in sealed bag from the bag seal date:

18 months at 10°C~30°C and < 90% RH.

3. After opening the package, the devices must be stored at 10°C~30°C and  60%RH, and used within 1 year

(floor life).

4. If the moisture absorbent material (desiccant material) has faded or unopened bag has exceeded the shelf

life or devices (out of bag) have exceeded the floor life, baking treatment is required.

5. If baking is required, refer to IPC/JEDEC J-STD-033 for bake procedure or recommend the following

conditions:

192 hours at 40°C +5/–0°C and < 5 % RH (reeled/tubed/loose units) or

96 hours at 60°C ± 5°C and < 5 % RH (reeled/tubed/loose units) or

24 hours at 125°C ± 5°C, not suitable for reel or tubes.

Recommended Solder Profile

Notice:

(1) Reflow soldering should not be done more than two times.

(2) When soldering, do not put stress on the devices during heating.

(3) After soldering, do not warp the circuit board.

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Release Date:2013-06-04 08:06:14.0

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Soldering Iron

Each terminal is to go to the tip of soldering iron temperature less than 350℃ for 3 seconds within once in less

than the soldering iron capacity 25W. Leave two seconds and more intervals, and do soldering of each terminal.

Be careful because the damage of the product is often started at the time of the hand solder.

Repairing

Repair should not be done after the device have been soldered. When repairing is unavoidable, a double-head

soldering iron should be used (as below figure). It should be confirmed beforehand whether the characteristics

of the device will or will not be damaged by repairing.

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Release Date:2013-06-04 08:06:14.0

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ALS-PDIC17-77B/TR8

Packing Quantity Specification

3000 PCS/ 1 Reel

Label Format

RoHS

CPN :

P N : XXXXXXXXXXXXX

XXXXXXXXXXXXX

QTY : XXX

LOT NO : XXXXXXXXXX

Reference : XXXXXXXX

CAT : XXX

HUE : XXX

REF : XXX

EVERLIGHT

Reel Dimensions

CPN: Customer’s Production Number

P/N : Production Number

QTY: Packing Quantity

CAT: Ranks

HUE: Peak Wavelength

REF: Reference

LOT No: Lot Number

MADE IN TAIWAN: Production Place

Unit: mm

Tolerance: ±0.1mm

LifecyclePhase:

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Release Date:2013-06-04 08:06:14.0

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Tape Dimensions

Progressive direction

LifecyclePhase:

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Ambient Light Sensor

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ALS-PDIC17-77B/TR8

Note:

1. Above specification may be changed without notice. EVERLIGHT will reserve authority on material change

for above specification.

2. When using this product, please observe the absolute maximum ratings and the instructions for using

outlined in these specification sheets. EVERLIGHT assumes no responsibility for any damage resulting

from use of the product which does not comply with the absolute maximum ratings and the instructions

included in these specification sheets.

3. These specification sheets include materials protected under copyright of EVERLIGHT corporation. Please

don’t reproduce or cause anyone to reproduce them without EVERLIGHT’s consent.