M52979F [MITSUBISHI]
2-CHANNEL SPD SENSOR BUILT-IN DETECT AMOUNT OF LIGHT; 2通道SPD传感器内置在detect光量
| 型号： | M52979F |
| 厂家： | 
Mitsubishi Group |
| 描述： | 2-CHANNEL SPD SENSOR BUILT-IN DETECT AMOUNT OF LIGHT |
| 文件： | 总5页 (文件大小：36K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MITSUBISHI ICs (AV COMMON)
M52979F
2-CHANNEL SPD SENSOR BUILT-IN DETECT AMOUNT OF LIGHT
DESCRIPTION
PIN CONFIGURATION (TOP VIEW)
The M52979F is a semiconductor integrated circuit designed to
detect quantity of light and used for cameras and illuminometers.
Because a high-sensitivity SPD sensor is built in this IC, it is
possible not only to reduce the space and expenses to mount it but
also to conduct wide-ranging detection of light volume.
PC
PO
VCC
NC
POC
GND
FEATURES
TO
GND
NC
• A 2-channel SPD sensor is built in.(1-channel for spot and one
for average)
VREF
• Wide-ranging detection of light volume.
• A temperature sensor circuit and a temperature constant refer-
5.2mm
6.4mm
ence voltage circuit are built in.
• Small-sized transparent molded plastic package.
Outline 10FOX
APPLICATION
Automatic exposure control for cameras,illuminometers.
DESCRIPTION OF PIN
PC
: Sensor switch2
RECOMMENDED OPERATING CONDITION
POC : Sensor switch1
Supply voltage range........................................................2.8 to 6.5V
Rated supply voltage................................................................4.65V
Light input range............................................SPOT 1 to 100000 lux
AVE. 0.1 to 14400 lux
TO
: Temperature sensor output
VREF : T-CONSTANT voltage
PO
: Photometry output
SWITCH OF MODE
SW2
PC
SW1
(AVE)
POC
(SPOT)
H
L
ON
H
L
OFF
ON
OFF
BLOCK DIAGRAM
PC
PO
SW2
TEMPERATURE
COMPENSATION
SPOT
SPD
+
x 4.83
+
SW1
1.4V
(T-PROPORTIONAL
VOLTAGE)
POC
GND
TEMPERATURE
COMPENSATION
AVE
SPD
+
BIAS
TEMPERATURE
SENSOR
VCC
2.5V
(T-CONSTANT
VOLTAGE)
VREF
TO
1
MITSUBISHI ICs (AV COMMON)
M52979F
2-CHANNEL SPD SENSOR BUILT-IN DETECT AMOUNT OF LIGHT
ABSOLUTE MAXIMUM RATINGS (Ta=25˚C unless otherwise noted)
Symbol
VCC
Parameter
Conditions
Ratings
-0.3 to 7.0
180
Unit
V
Supply voltage
Power dissipation
Input voltage
Pd
mW
V
VIN
-0.3 to VCC+0.3
10
Pin VREF
IO(max)
Output current
mA
Pin TO and PO
1
Topr
Tstg
Kq
Operating temperature
Storage temperature
Thermal derating
-20 to 60
30 to 85
-3.0
˚C
˚C
mW/˚C
RECOMMENDED OPERATING CONDITION (Ta=25˚C unless otherwise noted)
Limits
Symbol
Parameter
Unit
Min
2.8
Typ
Max
6.5
VCC
Supply voltage
5.0
V
Lopr1
Lopr2
Operating illminance "SP"
Operating illminance "AVE"
1 to 100000
0.1 to 14400
lux
lux
ELECTRICALCHARACTERISTICS (Ta=25˚C,light source 4500˚C,illuminance:measured after transmitting products through
CM 500 filter, unless otherwise noted)
Test
poi
nt
Limits
Symbol
Parameter
Test Conditions
Unit
Min. Typ. Max.
ICC
Circuit current
H input voltage
L input voltage
9
2
2
2
2
4
4
4
4
4
4
5
5
5
5
illuminance:200 lux,POC:(2pin)"H"
value detected as "H"
5
7
mA
V
VCC-0.8
POCH
POCL
PCCR
POCI
TOV
VCC-2.2
10
Value detected as H(current pull-out)
V
Non-operating current
µA
µA
Ground current
-550
-80
Absolute value of temperature sensor output
Supply voltage variance 1
1270 1550 1730 mV
dTOV1
dTOV2
dTO1
Output voltage variance at VCC 3V ±0.2V
Output voltage variance at VCC 4.65V ±1.85V
Ta=25˚C(reference),Ta=-15 to 40˚C
Ta=10 to 40˚C
-5
5
mV
mV
Supply voltage variance 2
-45
45
mV/˚C
20.4 22.1 23.8
Output voltage temperature coefficient
-1.2
-3.0
1.2
3.0
dTO2
Accuracy of temperature sensor
˚C
Ta=-15 to 10˚C
VREF
Absolute value of output at VREF pin
VREF output voltage load variance1
VREF output voltage load variance2
VREF output voltage load variance3
Absolute value of photometry output
2300 2500 2700 mV
dVREF1
dVREF2
dVREF3
VPOS
Load current:-2mA
-20
-5
20
5
mV
mV
mV
Output voltage variance at VCC 3V±0.2V
Output voltage variance at VCC 4.65V±1.85V
-45
45
10 SP side, illuminance 8 lux
1490 1750 1980 mV
SP side.Output voltage variance at VCC
dVPOS1 Photometry output supply voltage variance 1 10
dVPOS2 Photometry output supply voltage variance 2 10
-5
5
mV
mV
3V±0.2V
SP side.Output voltage variance at Vcc
4.65V±1.85V
-45
45
SP side.Variance when illuminance changes
from 20 to 40
dEVS1
Varience per level (1EV)
10
80
86
92
mV
mV
dEVS2
VPOA
Photometry output linearity
10 SP side,illuminance : 1 to 100000 lux
10 AVE side, illuminance 8 lux
-0.3
0.3
Absolute value of photometry output
1190 1400 1630 mV
AVE side.Output voltage variance at VCC
dVPOA1 Photometry output supply voltage variance 1 10
dVPOA2 Photometry output supply voltage variance 2 10
-5
5
mV
mV
mV
3V±0.2V
AVE side.Output voltage variance at Vcc
4.65V±1.85V
-45
45
92
AVE side.Variance when illuminance changes
from 20 to 40
dEVA1
Variance per level (1EV)
10
80
86
dEVA2
trs
Photometry output linearity
Power supply response 1
Power supply response 2
Switching response 1
10 AVE side,illuminance : 1 to 14400 lux
10 SP side, illuminance 1 lux
-0.3
0.3
60
150
3
EV
ms
ms
ms
ms
25
40
tra
10 AVE side, illuminance 0.1 lux
trc1
trc2
10 SP AVE,illuminance 0.1 to 14400 lux
10 AVE SP,illuminance 1 to 100000 lux
0.01
0.01
Switching response 2
3
2
MITSUBISHI ICs (AV COMMON)
M52979F
2-CHANNEL SPD SENSOR BUILT-IN DETECT AMOUNT OF LIGHT
TYPICAL CHARACTERISTICS
ILLUMINANCE OUTPUT
THERMAL DERATING (MAXIMUM RTAING)
3000
2500
200
Vcc=5V
IR CUTOFF FILTER
-2.5mW/˚C
180
SPOT
AVER
150
100
50
2000
1500
1000
500
0
100000
100 1000 10000
0.01 0.1
1
10
0
0
25
50 60
75 85
100
ILLUMINABCE(LX)
AMBIENT TEMPERATURE Ta (˚C)
ILLUMINANCE OUTPUT DEFRECTION(SP)
ILLUMINANCE OUTPUT DEFRECTION(AVE)
0.3
0.3
0.2
0.2
Vcc=5V
Vcc=5V
0.1
0.0
0.1
0.0
-0.1
-0.1
1EV:definited by
12.81X-3.21
output voltage
1EV:definited by
4081X-1021X
output voltage
-0.2
-0.3
-0.2
-0.3
0.01 0.1
0.01 0.1
1
10
100 1000 10000100000
1
10 100 1000 10000100000
ILLUMINANCE (LX)
ILLUMINANCE (LX)
TEMPERATURE SENSOR OUTPUT VOLTAGE
3000
2500
2000
1500
VCC=5V
1000
500
0
-30 -20 -10 0 10 20 30 40 50 60 70
AMBIENT TEMPERATURE(˚C)
3
MITSUBISHI ICs (AV COMMON)
M52979F
2-CHANNEL SPD SENSOR BUILT-IN DETECT AMOUNT OF LIGHT
I/O SYSTEM
10
9
8
7
6
320µA
320µA
TYP
TYP
80µA
TYP
1
2
3
4
5
EXAMPLE
H
H
1
10
PO
PC
L
L
2
3
4
9
8
7
VCC
NC
NC
POC
GND
TO
5.0V
5
6
NC
VREF
Method to switch photometric amplifier : 2-pin (POC)H - SP side, L - AVE side
Conditions on light for photometric amplifier
IR cutoff filter
: CM500 (glass filter)
Light source color temperature : 4500˚K
LIGHT
IR cutoff filter (CM500)
Luminance definition surface
IC
4
MITSUBISHI ICs (AV COMMON)
M52979F
2-CHANNEL SPD SENSOR BUILT-IN DETECT AMOUNT OF LIGHT
TEMPERATURE SENSOR OUTPUT VOLTAGE
SENSOR FORM
• Temperature conversion method based on temperature sensor
output voltage.
UNIT:µm
210
100
• Vta: Temperature sensor output voltage at Ta=25˚C
Vto: Temperature sensor output voltage at ambient temperature
Conversion formula Ambient temperature
= (Vto - Vta) / 22.14mV + 298˚K
47
50µ
PHOTOMETRY OUTPUT VOLTAGE
• Calculate the photometry output voltage at Ta=25˚C
• Ambient temperature: photometry output voltage at ambient
temperature Ta (˚ K) : Vo
Conversion formula Photometry output voltage at Ta=25˚C
=Vo / Ta X 298˚K
SPOT
Conversion error range ± 0.4EV (-15 to 40˚C )
AVE
150
2250
1125
5
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