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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. POC GND VCC NC GND NC 5.2mm 6.4mm Outline 10FOX PC PO PIN CONFIGURATION (TOP VIEW) 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 reference voltage circuit are built in. Small-sized transparent molded plastic package. TO VREF APPLICATION Automatic exposure control for cameras,illuminometers. PC : Sensor switch2 : Sensor switch1 DESCRIPTION OF PIN POC TO PO 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 : Temperature sensor output : Photometry output VREF : T-CONSTANT voltage SWITCH OF MODE PC H L SW2 (SPOT) ON OFF POC H L SW1 (AVE) OFF ON BLOCK DIAGRAM PC SPOT SPD TEMPERATURE COMPENSATION SW1 1.4V (T-PROPORTIONAL VOLTAGE) SW2 x 4.83 + PO + POC AVE SPD TEMPERATURE COMPENSATION BIAS TEMPERATURE SENSOR + GND 2.5V (T-CONSTANT VOLTAGE) VREF VCC TO 1 MITSUBISHI ICs (AV COMMON) M52979F 2-CHANNEL SPD SENSOR BUILT-IN DETECT AMOUNT OF LIGHT ABSOLUTE MAXIMUM RATINGS (Ta=25C unless otherwise noted) Symbol VCC Pd VIN IO(max) Topr Tstg Kq Parameter Supply voltage Power dissipation Input voltage Output current Operating temperature Storage temperature Thermal derating Pin VREF Pin TO and PO Conditions Ratings -0.3 to 7.0 180 -0.3 to VCC+0.3 10 1 -20 to 60 30 to 85 -3.0 Unit V mW V mA C C mW/C RECOMMENDED OPERATING CONDITION (Ta=25C unless otherwise noted) Symbol VCC Lopr1 Lopr2 Parameter Supply voltage Operating illminance "SP" Operating illminance "AVE" Min 2.8 Limits Typ Max 5.0 6.5 1 to 100000 0.1 to 14400 Unit V lux lux ELECTRICALCHARACTERISTICS (Ta=25C,light source 4500C,illuminance:measured after transmitting products through CM 500 filter, unless otherwise noted) Symbol ICC POCH POCL PCCR POCI TOV dTOV1 dTOV2 dTO1 dTO2 VREF dVREF1 dVREF2 dVREF3 VPOS dVPOS1 dVPOS2 dEVS1 dEVS2 VPOA dVPOA1 dVPOA2 dEVA1 dEVA2 trs tra trc1 trc2 Test poi nt Circuit current 9 H input voltage 2 L input voltage 2 Non-operating current 2 Ground current 2 Absolute value of temperature sensor output 4 Supply voltage variance 1 4 Supply voltage variance 2 4 Output voltage temperature coefficient 4 Parameter Accuracy of temperature sensor 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 Photometry output supply voltage variance 1 Photometry output supply voltage variance 2 Varience per level (1EV) Photometry output linearity Absolute value of photometry output Photometry output supply voltage variance 1 Photometry output supply voltage variance 2 Variance per level (1EV) Photometry output linearity Power supply response 1 Power supply response 2 Switching response 1 Switching response 2 4 4 5 5 5 5 10 10 10 10 10 10 10 10 10 10 10 10 10 10 Limits Test Conditions illuminance:200 lux,POC: (2pin)"H" value detected as "H" Value detected as H(current pull-out) Min. Typ. 5 VCC-0.8 VCC-2.2 Max. 7 Unit mA V V A A mV mV mV Output voltage variance at V CC 3V 0.2V Output voltage variance at V CC 4.65V 1.85V Ta=25C(reference),Ta=-15 to 40C Ta=10 to 40C Ta=-15 to 10C Load current:-2mA Output voltage variance at V CC 3V0.2V Output voltage variance at V CC 4.65V1.85V SP side, illuminance 8 lux SP side.Output voltage variance at VCC 3V0.2V SP side.Output voltage variance at Vcc 4.65V1.85V SP side.Variance when illuminance changes from 20 to 40 SP side,illuminance : 1 to 100000 lux AVE side, illuminance 8 lux AVE side.Output voltage variance at VCC 3V0.2V AVE side.Output voltage variance at Vcc 4.65V1.85V AVE side.Variance when illuminance changes from 20 to 40 AVE side,illuminance : 1 to 14400 lux SP side, illuminance 1 lux AVE side, illuminance 0.1 lux SP AVE,illuminance 0.1 to 14400 lux AVE SP,illuminance 1 to 100000 lux 10 -550 -80 1270 1550 1730 -5 5 -45 45 20.4 22.1 23.8 mV/C -1.2 1.2 -3.0 3.0 2300 2500 2700 -20 20 -5 5 -45 45 1490 1750 1980 -5 -45 80 86 5 45 92 C mV mV mV mV mV mV mV mV mV mV mV mV mV EV ms ms ms ms -0.3 0.3 1190 1400 1630 -5 -45 80 -0.3 25 40 0.01 0.01 86 5 45 92 0.3 60 150 3 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) 200 -2.5mW/C 3000 Vcc=5V IR CUTOFF FILTER SPOT AVER 2000 1500 POWER DISSIPATION Pd (mW) OUTPUT VOLTAGE(mW) 180 150 2500 100 1000 50 500 0 0.01 0 25 50 60 75 85 100 0 0.1 1 10 100 1000 10000 100000 ILLUMINABCE(LX) AMBIENT TEMPERATURE Ta (C) ILLUMINANCE OUTPUT DEFRECTION(AVE) 0.3 ILLUMINANCE OUTPUT DEFRECTION(SP) 0.3 OUTPUT DEFLECTION (EV) OUTPUT DEFLECTION (EV) 0.2 Vcc=5V 0.1 0.0 -0.1 -0.2 -0.3 0.01 0.1 1EV:definited by 12.81X-3.21 output voltage 1 10 100 1000 10000100000 0.2 Vcc=5V 0.1 0.0 -0.1 -0.2 -0.3 0.01 0.1 1EV:definited by 4081X-1021X output voltage 1 10 100 1000 10000100000 ILLUMINANCE (LX) ILLUMINANCE (LX) TEMPERATURE SENSOR OUTPUT VOLTAGE 3000 2500 OUTPUT VOLTAGE (mV) 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 320A TYP 320A TYP 80A TYP 1 2 3 4 5 EXAMPLE H L H L 1 PC PO 10 2 POC VCC 9 5.0V 3 GND NC 8 4 TO NC 7 5 VREF NC 6 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 : 4500K 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 180 210 UNIT:m * * Temperature conversion method based on temperature sensor output voltage. Vta: Temperature sensor output voltage at Ta=25C Vto: Temperature sensor output voltage at ambient temperature 750 100 Conversion formula Ambient temperature = (Vto - Vta) / 22.14mV + 298K 47 50 25 0 PHOTOMETRY OUTPUT VOLTAGE * * Calculate the photometry output voltage at Ta=25C Ambient temperature: photometry output voltage at ambient temperature Ta ( K) : Vo Photometry output voltage at Ta=25C =Vo / Ta X 298K Conversion error range 0.4EV (-15 to 40C ) 1500 Conversion formula 160 SPOT 150 AVE 1125 2250 5 |
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