LX1977IDU MICROSEMI [Microsemi Corporation], LX1977IDU Datasheet - Page 20

• Manufacturer Part Number: LX1977IDU
• Description: SMBus Ambient Light Sensor
• Manufacturer: MICROSEMI [Microsemi Corporation]

Copyright © 2010
Rev. 1.0, 2010-03-25
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
-90 -80 -70 -60 -50 -40 -30 -20 -10
-1
-2
-3
-4
-5
5
4
3
2
1
0
2.5
1.0
0.8
0.6
0.4
0.2
0.0
300
Chart 7 – ALS Output D
TM
A L S , S P E C T R A L R E S P O N S E
A L S , A N G U L A R R E S P O N S E
Chart 9 – Angular Response X Direction
350
Chart 5 – ALS Spectral Response
3
Angular Response - X Direction
(100mS, 500 Lux Range, 200 Lux Input)
A L S D
400
450
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
3.5
D
C O U N T
Spectral Response
COUNT
500
Wavelength (nm)
V
Angle
CC
vs. V
0
COUNT
(V)
550
10 20 30 40 50 60 70 80 90
CC
V S V
4
vs Supply Voltage
600
D D
650
4.5
700
Analog Mixed Signal Group
Eye
LX1977
®
750
Microsemi
5
800
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
130
110
-0.25
-0.50
-0.75
-1.00
1.00
0.75
0.50
0.25
0.00
90
70
50
30
-90 -80 -70 -60 -50 -40 -30 -20 -10
-60
-60
Chart 8 – Device Supply Current vs Temperature
SMBus Ambient Light Sensor
Chart 10 – Angular Response Y Direction
A L S , A N G U L A R R E S P O N S E
100mS
(0~500 Lux Range, 100mS, 200 Lux Input, Vcc=3.3V)
-40
(100mS, 0~500 Lux Range, 200 Lux Input, Vcc=3.3V)
-40
Chart 6 – D
P
RODUCTION
Angular Response - Y Direction
-20
LX1977 Temperature Performance
Supply Current vs Temperature
-20
D
C O U N T
I
D D
0
0
COUNT
V S T E M P
TEMP (C)
D
TEMP (C)
V S T E M P
20
Angle
vs Temperature
ATASHEET
20
0
10 20 30 40 50 60 70 80 90
40
40
60
60
80
LX1977
80
100
Page 20
100