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PDF M52979F Data sheet ( Hoja de datos )
| Número de pieza | M52979F | |
| Descripción | 2-CHANNEL SPD SENSOR BUILT-IN DETECT AMOUNT OF LIGHT | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de M52979F (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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MITSUBISHI ICs (AV COMMON)
M52979F
2-CHANNEL SPD SENSOR BUILT-IN DETECT AMOUNT OF LIGHT
DESCRIPTION
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.
FEATURES
• A 2-channel SPD sensor is built in.(1-channel for spot and one
for average)
• Wide-ranging detection of light volume.
• A temperature sensor circuit and a temperature constant refer-
ence voltage circuit are built in.
• Small-sized transparent molded plastic package.
APPLICATION
Automatic exposure control for cameras,illuminometers.
RECOMMENDED OPERATING CONDITION
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
PIN CONFIGURATION (TOP VIEW)
PC
POC
GND
TO
VREF
5.2mm
6.4mm
Outline 10FOX
DESCRIPTION OF PIN
PC : Sensor switch2
POC : Sensor switch1
TO : Temperature sensor output
VREF : T-CONSTANT voltage
PO : Photometry output
SWITCH OF MODE
PC
SW2
(SPOT)
H ON
L OFF
POC
H
L
PO
VCC
NC
GND
NC
SW1
(AVE)
OFF
ON
BLOCK DIAGRAM
SPOT
SPD
TEMPERATURE
COMPENSATION
+
1.4V
(T-PROPORTIONAL
VOLTAGE)
SW2
SW1
x 4.83
+
AVE
SPD
+
2.5V
(T-CONSTANT
VOLTAGE)
VREF
TEMPERATURE
COMPENSATION
TEMPERATURE
SENSOR
TO
BIAS
PC
PO
POC
GND
VCC
1
1 page  
MITSUBISHI ICs (AV COMMON)
M52979F
2-CHANNEL SPD SENSOR BUILT-IN DETECT AMOUNT OF LIGHT
TEMPERATURE SENSOR OUTPUT VOLTAGE
• Temperature conversion method based on temperature sensor
output voltage.
• 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
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
Conversion error range ± 0.4EV (-15 to 40˚C )
SENSOR FORM
47
1125
210 UNIT:µm
100
50µ
250
SPOT
150
2250
AVE
5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet M52979F.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
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