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Light Sensor (AMS1, 3, 4)
Cadmium-free sensor with spectral response Chip type ideal for brightness adjustment of mobile device displays
* SMD type
L 2.0mm .079inch W 3.2mm .126inch H 1.0mm .039inch
LIGHT SENSOR
TYPICAL APPLICATIONS
SMD and Through-hole types 1. Brightness detection for LCD backlight control for LCD devices (LCD TVs, car navigation systems, and mobile PCs). 2. Brightness detection for circuits in residential lighting, lighting for security, and automatic lighting for bicycle. 3. Household applicances (day/night energy savings for air conditioners and electric hot water pots, etc.) 4. Brightness detection for wall clocks (radio clocks). Chip type 1. Brightness detection for LCD backlight control for compact mobile devices (mobile phones and PDAs). 2. Brightness detection for controlling the keypad backlight in mobile phones.
FEATURES
1. Built-in optical filter for spectral response similar to that of the human eye.
1.0 0.9 Relative sensitivity 0.8 0.7 0.6 0.5 0.4 0.3 SMD/Through-hole type spectral Chip type spectral Human spectral
1
Amplifier
4
2
12 Anode 3 34 Cathode
* Through-hole type
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5.0 mm dia. .197 inch dia. (Surface of resin)
0.2 0.1 0 300 400 500 600 700 800 900 1000 1100 Wavelength, nm
1
Amplifier
2
1 Anode 2 Cathode
* Chip type
New
L 1.25mm .049inch W 2.00mm .079inch H 0.55mm .022inch
2. Photocurrent is proportional to illumination. (linear output) 3. Uses environmentally friendly silicon chips. 4. Lead-free. 5. Lineup of 3 different shapes * SMD type for easy automatic mounting * Lead type same as CdS cell (photoconductive cell) * Chip type that achieves miniaturization
1
Amplifier
2
1 Anode (-) 2 Cathode (+)
RoHS Directive compatibility information http://www.mew.co.jp/ac/e/environment/
TYPES
Type (shape) SMD type Through-hole type Chip type Photo current 260 A* 20 A*
Packing quantity:
Tape and reel package SMD type: Inner 3,000 pcs., Outer 3,000 pcs. Tape and reel package Through-hole type: Inner 2,000 pcs., Outer 2,000 pcs. Baggage package Through-hole type: Inner 500 pcs., Outer 1,000 pcs. Tape and reel package Chip type: Inner 3,000 pcs., Outer 3,000 pcs. Part No. Baggage package -- AMS302 --
Tape and reel package AMS104Y AMS302T AMS402Y
New
Notes: *Ev = 100 lx (Ev: Brightness, Fluorescent lamp is used as light source) Tape and reel package is standard packaging style for SMD and chip types. ("Y" and "T" at end of part number indicate packaging type.)
All Rights Reserved (c) COPYRIGHT Matsushita Electric Works, Ltd.
New
Light Sensor (AMS1, 3, 4)
RATINGS
1. Absolute maximum ratings (Ambient temperature: 25C 77F)
Item Reverse voltage Photocurrent Power dissipation Operating temperature Storage temperature Symbol VR IL P Topr Tstg AMS104/AMS302 -0.5 to 8 V 5 mA 40 mW -30 to +85C -22 to +185F -40 to +100C -40 to +176F AMS402 -0.5 to 6 V 1 mA 6 mW -30 to +85C -22 to +185F -40 to +100C -40 to +176F Remarks -- -- -- Non-condensing at low temperatures Non-condensing at low temperatures
2. Recommended operating condition
Item Reverse voltage Minimum Maximum Symbol VR AMS104/AMS302 1.5 V 6V AMS402 1.5 V 5.5 V Remarks --
3. Electrical and optical characteristics (Ambient temperature: 25C 77F)
Item Peak sensitivity wavelength Photocurrent 1 -- Minimum Typical Maximum Minimum Typical Maximum Photocurrent 3 Typical IL3 IL2 IL1 Symbol p AMS104/AMS302 580 nm 9.1 A 13 A 16.9 A 182 A 260 A 338 A 500 A AMS402 560 nm 0.7 A 1 A 1.3 A 14 A 20 A 26 A 35 A Condition -- AMS104/AMS302: VR = 5 V, EV = 5 lx*1 AMS402: VR = 3 V, EV = 5 lx*1 AMS104/AMS302: VR = 5 V, EV = 100 lx*1 AMS402: VR = 3 V, EV = 100 lx*1 AMS104/AMS302: VR = 5 V, EV = 100 lx*2 AMS402: VR = 3 V, EV = 100 lx*2 AMS104/AMS302: VR = 5 V, EV = 0 lx AMS402: VR = 3 V, EV = 0 lx AMS104/AMS302: VCC = 5.0 V, VO = 2.5 V, RL = 5 k AMS104/AMS302: VCC = 3.0 V, VO = 1.5 V, RL = 5 k
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Photocurrent 2
Dark current
Maximum
ID
0.3 A
0.05 A
Rise time Switching time Fall time
Typical Typical
tr tf
8.5 ms 8.5 ms
1.2 ms 1.2 ms
*1 Fluorescent lamp is used as light source. Ev = Brightness *2 CIE standard illuminant `A' is used as light source. *3 Measuring method for switching time.
IF White LED IF RL AMS VR VO VO tr tf VCC AMS104/AMS302: 2.5V AMS402: 1.5V 90% 10%
All Rights Reserved (c) COPYRIGHT Matsushita Electric Works, Ltd.
Light Sensor (AMS1, 3, 4)
REFERENCE DATA
1. Power dissipation vs. ambient temperature characteristics 2. Relative sensitivity vs. wavelength characteristics
Reverse voltage: 3V (AMS402), 5V (AMS104, AMS302) Ambient temperature: 25C 77F
50 45 Power dissipation, mW 40 35 30 25 20 15 10 5 0 0 20 40 60 80 100 AMS402 AMS104*AMS302 Relative sensitivity 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 300 400 500 600 700 800 900 1000 1100 Wavelength, nm 0.0001 20 40 60 0.001 AMS402 AMS104*AMS302 80 100 SMD/Through-hole type spectral Chip type spectral Human spectral
3. Dark current vs. ambient temperature characteristics
Reverse voltage: 3V (AMS402), 5V (AMS104, AMS302)
10
Dark current, A
1
0.1
0.01
Ambient temperature, C
Ambient temperature, C
4. Photocurrent vs. brightness characteristics Light source: Fluorescent lamp www..com
Reverse voltage: 3V (AMS402), 5V (AMS104, AMS302) Ambient temperature: 25C 77F
10000
5. Relative photocurrent vs. ambient temperature characteristics
Light source: Fluorescent lamp, Brightness: 100 lx Reverse voltage: 3V (AMS402), 5V (AMS104, AMS302)
1.4 Relative photocurrent
6. Relative photocurrent vs. reverse voltage characteristics
Light source: Fluorescent lamp, Brightness: 100 lx Ambient temperature: 25C 77F
1.2 Relative photocurrent 1.0 0.8 0.6 0.4 0.2 0 0 AMS402 AMS104*AMS302 1 2 3 4 5 6 7 8
Photocurrent, A
1000
1.2
100
1.0
10
1
AMS402 AMS104*AMS302 10 100 1000 10000
0.8
AMS402 AMS104*AMS302
0.1 1
0.6 -40
-20
0
20
40
60
80
100
Brightness, lx
Ambient temperature, C
Reverse voltage, V
7. Switching time vs. resistive load characteristics
Light source: White LED Power voltage: 3V (AMS402), 5V (AMS104, AMS302) Resistive load voltage: 1.5V (AMS402), 2.5V (AMS104, AMS302) Ambient temperature: 25C 77F
100
Switching time, ms
10
1 AMS402 AMS402 AMS104*AMS302 AMS104*AMS302 1 10 100 1000 Resistive load, k
0.1 0.1
All Rights Reserved (c) COPYRIGHT Matsushita Electric Works, Ltd.
Light Sensor (AMS1, 3, 4)
DIMENSIONS
1. SMD type
(0.2) (.008) 4 3 0.25 .010
mm inch
Recommended mounting pad (Top view)
(0.1) (.004) 2.2 .087 3.2 .126
0.8 2.8 .031 .110
1
2.0 .079
2
0.25 .010
1.0 .039 0.3 .012 1.27 .050 0.05 .002
1 Anode: - 2 Anode: - 3 Cathode: + 4 Cathode: + DETECTION AREA
0.6 .024 1.27 .050
Tolerance: 0.1 .004
0.3 .012
Terminal thickness: t=0.125 General Tolerance: 0.1 .004
www..com 2. Through-hole type
(0.17) (.007)
1 Anode: - 2 Cathode: + DETECTION AREA
5.00.2 dia. .197.008 dia. 5.8 dia. .228 dia.
(1.0) (.039)
4.30.2 .169.008
Max. 1.5 Max. .059
9.1 .358 1.0 .039
(1.0) (.039)
Max. 1.0 Max. .039
343 1.339.118
1
2
(2.5) (.098) 2- 0.5 2- .020 (2.54) (.100)
General Tolerance: 0.5 .020
3. Chip type
(0.30) (.012) 1
(0.23) (.009)
2
Recommended mounting pad (Top view)
1 Anode 2 Cathode DETECTION AREA
(0.6) (.024) (0.6) (.024) (1.2) (.047) 0.55 .022 (2.4) (.094)
1.25 .049 (0.58) (.023) 1.45 .057 2.0 .079
Mark for indicating orientation
(0.17) (.007)
1.2 .047
General Tolerance: 0.1 .004
All Rights Reserved (c) COPYRIGHT Matsushita Electric Works, Ltd.
Light Sensor (AMS1, 3, 4)
SAFETY PRECAUTIONS
Be sure to obey the following in order to prevent injuries and accidents. * Do not use the sensors under conditions that exceed the range of its specifications. It may cause overheating, smoke, or fire. * Connect terminals correctly by verifying the pin layout with the specifications diagram or other instructions. Erroneous connections may lead to unexpected operating errors, overheating, smoke, or fire. * For an impotant and serious application in terms of safety, add protection circuit or any other protection method.
CAUTIONS FOR USE
1. Applying stress that exceeds the absolute maximum rating If the voltage or current value for any of the terminals exceeds the absolute maximum rating, internal elements will deteriorate because of the excessive voltage or current. In extreme cases, wiring may melt, or silicon P/N junctions may be destroyed. Therefore the design should ensure that www..com the absolute maximum ratings will never be exceeded, even momentarily. 2. Deterioration and destruction caused by discharge of static electricity This phenomenon is generally called static electricity destruction. Static electricity generated by various factors flows through the terminal and occurs to destroy internal elements. To prevent problems from static electricity, the following precautions and measures should be taken when using your device. 1) Person handling sensor should wear anti-static clothing and should be grounded through protective resistance of 500 k to 1 M. 2) A conductive metal sheet should be placed over the work table. Measuring instruments and jigs should be grounded. 3) When using soldering irons, either use irons with low leakage current, or ground the tip of the soldering iron. (Use of lowvoltage soldering irons is also recommended.) 4) Devices and equipment used in assembly should also be grounded. 5) When packing printed circuit boards and equipment, avoid using high-polymer materials such as foam styrene, plastic, and other materials which carry an electrostatic charge. 6) When storing or transporting sensor, the environment should not be generated static electricity (for instance, the humidity should be between 45 and 60%), and sensor should be protected using conductive packing materials. 3. Just after supplying voltage, please note that current in the sensor will be not constant until internal circuit stability. 4. Storage The sensors are transparent plastic packages. They are sensitive to moisture and come in moisture-proof packages. Observe the following cautions when storing. 1) After the moisture-proof package is unsealed, take the sensors out of storage as soon as possible (within 1 week 30C/60% R.H.). 2) If the devices are to be left in storage for a considerable period after the moisture-proof package has been unsealed, it is recommended to keep them in another moisture-proof bag containing silica gel (within 3 months at the most). 3) Storage under extreme conditions will cause soldering degradation, external appearance defects, and deterioration of the characteristics. The following storage conditions are recommended: * Temperature: 0 to 30C 32 to 86F * Humidity: Less than 60% R.H. (Avoid freezing and condensing) * Atomosphere: No harmful gasses such as sulfurous acid gas, minimal dust. *When mounting with solder, if thermal stress is applied to sensors that have absorbed moisture, the moisture will vaporize, swelling will occur, and the inside of the package will become stressed. This may cause the package surface to blister or crack. Therefore, please take caution and observe the soldering conditions in the following section. 5. Recommended soldering conditions 1) Recommended condition (1) IR (Infrared reflow) soldering method
T3 T2 T1
(2) Soldering iron method Tip temperature: 350 to 400C 662 to 752F Wattage: 30 to 60 W Soldering time: within 3 s *We don't recommend soldering iron method for chip type. 2) Do not do flow soldering. 1) Recommended condition (1) Double wave soldering method
T2
T1
t1
t2
t3
t1
t2
T1 = 150 to 180C 302 to 356F T2 = 230C 446F T3 = 250C 482F or less t1 = 60 to 120 s or less t2 = 30 s or less
T1 = 120C 248F T2 = 260C 500F or less t1 = 120 s or less t2+t3= 6 s or less (2) Soldering iron method Tip temperature: 350 to 400C 662 to 752F Wattage: 30 to 60 W Soldering time: within 3 s 2) The soldered position on leads should not be closer than 3mm .118inch to the molding resin of this sensor. 6. Notes for mounting 1) Temperature rise in the lead portion is highly dependent on package size. If multiple different packages are mounted on the same board, please check your board beforehand in an actual product, ensuring that the temperature of the solder area of the sensor terminals falls within the temperature conditions of item 5. 2) If the mounting conditions exceed the recommended solder conditions in item 5, resin strength will fall and the mismatching of the heat expansion coefficient of each constituent material will increase markedly, possibly causing cracks in the package, disconnections of bonding wires, and the like. For this reason, please inquire with us about whether this use is possible.
5
Light Sensor (AMS1, 3, 4)
7. Cleaning solvents compatibility We recommend dip cleaning with an organic solvent for removal of solder flux etc. If you cannot avoid using ultrasonic cleansing, please ensure that the following conditions are met, and check beforehand for defects. * Frequency: 27 to 29 kHz * Ultrasonic power: No greater than 0.25W/cm2 * Cleaning time: No longer than 30 s * Cleanser used: Asahiklin AK-225 * Other: Submerge in solvent in order to prevent the PCB and sensors from being contacted directly by the ultrasonic vibrations.
Note: Applies to unit area ultrasonic power for ultrasonic baths.
8. Transportation Extreme vibration during transport will warp the lead or damage the sensor. Handle the outer and inner boxes with care. 9. Avoid using the sensor in environments containing excessive amounts of steam, dust, corrosive gas, or where organic solvents are present.
10. Lead forming and cutting of through-hole type 1) Lead forming must be done at normal temperature before soldering 2) The bent and cut position on leads should not be closer than 3mm .118inch to the base of leads. 3) Lead forming and cutting must be done while fixing the base of leads. 4) Avoid mounting with stress at the base of leads.
11. The following shows the packaging format 1) SMD type tape and reel
Type www..com Tape dimensions Dimensions of tape reel
21.00.8 dia. .827.031 dia. Anode side 0.20.05 .008.002 Device mounted on tape 4.00.1 .157.004 Direction of picking 2.00.1 .079.004 1.5 dia. .059 dia. 1.750.1 .069.004 2.00.5 .079.020
+0.1 -0 +.004 -0
mm inch
11.41.0 .449.039
1782 dia. 7.008.079 dia.
Light sensor NaPiCa SMD type AMS104Y
1.50.3 .059.012
8.00.2 .315.008 3.60.1 .142.004 2.40.1 .094.004 Cathode side 3.50.1 .138.004
600.5 dia. 2.362.020 dia.
4.00.1 .157.004
1.00.1 dia. .039.004 dia.
Note) When picked from 1 and 4-pin side (Please inquire for tape and reel packaging with 2-pin and 3-pin on the pull-out side.)
13.00.5 dia. .512.020 dia. 9.00.3 .354.012
2) Through-hole type tape and reel
Type Tape dimensions Symbol
Anode side P2 P p Cathode side h
mm inch
Symbol P0 P P2 H F h p W W0 W1 W2 D0 t L
Feed hole pitch Product interval pitch Product distance Product bottom distance
Dimensions 12.70.3 .500.012 12.71.0 .500.039 6.351.3 .250.051 20.51.0 .807.039 2.540.5 .100.020 01.0 0.039 01.0 0.039 18.0 +1.0 -0.5 .709 +.039 -.020 13.00.3 .512.012 9.0 +0.75 -0.5 .354 +.030 -.020 0 to 0.5 0 to .020 3.80.2 .150.008 0.50.2 .020.008 Max.: 11.0 .433
Remarks
W2
H
Lead interval Product slant Product tilt
L
Light sensor NaPiCa Through-hole type AMS302T
W1 W0 W
P0
F
Tape width Holding tape width Feed hole position Holding tape distance Feed hole diameter Tape thickness Defective product cutoff position
D0
Note) Zigzag tape style is used.
Included holding tape thickness
All Rights Reserved (c) COPYRIGHT Matsushita Electric Works, Ltd.
Light Sensor (AMS1, 3, 4)
3) Chip type tape and reel
Type Tape dimensions Dimensions of tape reel
21.00.8 dia. .827.031 dia. Direction of picking Anode side 0.20.05 .008.002 Device 4.00.1 mounted on tape .157.004 2.00.1 .079.004 1.5 +0.1 dia. -0 .059+.004 dia. -0 1.750.1 .069.004 2.00.5 .079.020 1782 dia. 7.008.079 dia. 11.41.0 .449.039
mm inch
Light sensor NaPiCa Chip type AMS402Y
0.90.3 .035.012 Cathode side
8.00.2 .315.008 2.250.1 .089.004 1.50.1 .059.004 4.0 .157.004
0.1
600.5 dia. 2.362.020 dia.
3.50.1 .138.004 0.8 dia. .031.004 dia. 13.00.5 dia. .512.020 dia. 9.00.3 .354.012
0.1
Light Sensor NaPiCa terminology
Term Reverse voltage www..com Photocurrent Power dissipation Operating temperature Storage temperature Peak sensitivity wavelength Dark current Rise time Fall time Symbol VR IL P Topr Tstg p ID tr tf Explanation The applied voltage between the cathode and anode. The current that flows between the cathode and anode when light is applied. The electric power loss that occurs between the cathode and anode. The workable ambient temperature range at which normal operation is possible under the condition of a prescribed allowable loss. The ambient temperature range at which the sensor can be left or stored without applying voltage. The wavelength of light at which sensitivity is at its maximum. The current between the cathode and anode when reverse voltage is applied during darkness. Time required for the output waveform to rise from 10% to 90% when light is applied. Time required for the output waveform to fall from 90% to 10% when light is cut.
All Rights Reserved (c) COPYRIGHT Matsushita Electric Works, Ltd.

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