MITSUBISHI M52959FP

MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
DESCRIPTION
M52959FP is a semiconductor integrated circuit built-in PSD(Position Sensitive Device) and distance detection
signal processor for 3V supply voltage.
This device transforms each signal current(I1 and I2) from PSD sensor to the voltage, and outputs it as the 4
Zone data after doing calculation of I1/(I1+I2).
FEATURES
• PSD on chip (Sensor size=0.5mm x 0.7mm)
• Wide operating supply voltage range Vcc=2.0V to 5.5V
• Built-in clamp circuit
PIN CONFIGURATION (TOP VIEW)
VR2
1
10
CHN
VR1
2
9
GND
OUT2
3
8
CHF
OUT1
4
7
Vcc
CONT
5
6
STB
APPLICATION
Auto focus control for the CAMERA
Sensor for short distance
etc
RECOMMENDED OPERATING CONDITION
Supply voltage • • • • • • • • • • • • • • • • 2.0 to 5.5V
Rated suooly voltage • • • • • • • • • • • • • • • • 3.0V
10Pin Clear Plastic Mold Package (10C2F) or
10Pin Infrared Permeation Plastic Mold Package (10B2F)
BLOCK DIAGRAM
CV
Vcc
7
Zone
Judgment
Circuit
CHN
10
1.0µF
I1
Surround light
Hold Capacitor
Vcc
Calculation
I/V
Transform
Amp
Surround light
rejection
CHF
8
1.0µF
I/V
Transform
Amp
Clamp
Circuit
10KΩ
VR
VR2
Zone
3 ––> 4
Level
1
Buffer
HOLD
Power On
Reset
Surround light
Hold Capacitor
GND
Zone Control
Resistance1
Zone
2 ––> 3
Level
I2
Surround light
rejection
2
Buffer
I1
HOLD
(Sensor size
=0.5mm x 0.7mm)
VR1
Zone
1 ––> 2
Level
I 1+I 2
HOLD
PSD
10µA
9
STB
6
CONT
Standby Control
5
Control Signal Input
MITSUBISHI
(1/8)
10KΩ
VR
Output
Driver
Cequence Control Logic
OUT1
4
3
Zone Control
Resistance2
OUT2
parallel Output
MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
ABSOLUTE MAXIMUM RATINGS
(Ta=25˚C ,unless noted)
Parameter
Symbol
Ratings
Unit
Supply voltage
Vcc
7.0
V
Power dissipation
Pd
200
mW
Ta = 25˚C
Thermal derating
K
3.3
mW/˚C
Ta ≥ 25˚C
Pin input voltage
VIF
7.0
V
Pin3,4,5,6
Another pin input voltage
VI/O
- 0.3 to Vcc+0.3
V
note 2
Output pin inflow current
Isout
Operating temperature
Topr
- 10 to 60
˚C
Storage temperature
Tstg
- 30 to 85
˚C
Surge voltage
0.5
Remark
note 1
mA
NPN open collector
C=100PF
R=1.5KΩ
+
_ 1000V over
Vsurge
note 1 : As a principle,do not provide a supply voltage reversely.
note 2 : As a principle,do not provide over supply voltage or under ground voltage.
THERMAL DERATING (MAXIMUM RATING)
200
- 3.3mW/˚C
150
100
50
0
10
20 25 30
40
50
60
70
AMBIENT TEMPERATURE Ta (˚C)
MITSUBISHI
(2/8)
80 85 90
100
MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
SEQUENTIAL TIME CHART EXAMPLE
Input signal
VCC
min
100µsec
min
100µsec
min
100µsec
STB
1
2
CONT
IC control content
min
100µsec
min
100µsec
Power On Reset
CH Quik Charge
Surround light Hold
min
1msec
min
1msec
100µsec
100µsec
100µsec
Zone Judgment
(Hi Edge)
Output Latch
Output signal
OUT1
OUT2
1.0msec
CH Quik
Charge
Stabilization Distance Detection
Period
25msec 1.0msec
1.2msec
Total Time
27msec+1.2msec x n
( n : Frequency of Radiation)
Controls
1. First,STB terminal set Low,then Power On Reset circuit operate.This Power On Reset circuit resets Built-in logic
circuits.
2. After Power On Reset circuit stoped,Surround light Hold Capacitor quik charge between the first CONT pulse
edge from High to Low and second CONT pulse edge from High to Low.
3. After quik charge,set Stabilization Period for about 1ms.
4. After quik charge,Surround light hold between the first CONT pulse edge from Low to High and second CONT
pulse edge from Low to High.
5, After quik charge,Zone judges at the first CONT pulse edge from High to Low and output the Zone Data to
OUT1,OUT2 terminals by 2bit at next CONT pulse edge from Low to High.
6. It can repeat distance detection by continuing control of 4 and 5.
7. It needs the signal synchronized with timing of Surround light hold as radiation control signal of IRED.
MITSUBISHI
(3/8)
MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
ELECTRICAL CHARACTERISTICS (Ta=25˚C , Vcc=3.0V , dark situation , unless otherwise noted)
Limit
Classfication
Consuming
current
CONT
terminal
STB
terminal
Surround
light Hold
Capacitor
Output
circuit
Parameter
Symbol
Test condition
Unit
Min.
Typ.
Max.
Note
Operating supply
voltage range
VCC
2.0
3.0
5.5
V
Usual consuming current
ICC
–
6.0
8.0
mA
*1
While Quick charge
consuming current
ICCQC
–
10.0
13.0
mA
*1
While STAND BY
consuming current
ICCS
–
–
1.0
µA
*1
CONT "H" input voltage
VCOH
1.1
–
7.0
V
CONT "L" input voltage
VCOL
0
–
0.3
V
CONT "H" input current
ICOH
VIH=5.5V
–
–
1.0
µA
CONT "L" input current
ICOL
VIL=0V
-78
-60
-42
µA
STB "H" input voltage
VSTH
VCC
-0.3
–
7.0
V
STB "L" input voltage
VSYL
0
–
0.3
V
STB "H" input current
ISTH
VIH=5.5V
–
–
3.0
µA
STB "L" input current
ISTL
VIL=0V
-150
-100
-50
µA
CH Quick charge current
ICHQC
VCH=0V
-1200
-800
-400
µA
*1
ICHC
VCH=0V
-30
-20
-10
µA
*1
ICHD
VCH=1.5V
10
20
30
µA
*1
OUT leak current
IOUT
VIN=5.5V
–
–
1.0
µA
*1
OUT saturationt voltage
VOUT
IOUT=500µA
–
–
0.3
V
*1
VR output current
IVR
VVR=0V
-13
-10
-7
µA
*1
ST1
No Signal
Nearest
zone
*2
ST2
Signal = 100nA
Farther
zone
*3
CH stationary charge
current
CH stationary discharge
current
Far diatance detection
AF
characteristics
characteristics Near distance detection
characteristics
While CH Quick charge
cunsuming current
Clamp level
ICLAM
0.25
0.5
0.75
nA
*4
PSD resistance value
RPSD
84
140
196
KΩ
*4
MITSUBISHI
(4/8)
MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
*1
Set up the logic control terminal, correspond to the parameter.
*2
This measuring have to put DUT box under dark condition.
*3
Regulate IRED driving current so that PSD output will become equivalent to 100nA and irradiate IC with
synchronizing IRED radiation.
Set zone resistance VR1 = VR2 = 2KΩ
IRED
Radiation
control signal
*4
IRED
Reference value
PSD SPECTRAL RESPONSIVITY CHARACTERISTICS
Characteristic at using Infrared Permeation Plastic Mold Package
100
90
80
70
60
Wave length peak 880nm
50
40
30
20
10
0
400
500
600
700
800
WAVE LENGTH (nm)
MITSUBISHI
(5/8)
900
1000
MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
Interface
Ta=25˚C, VCC=3.0V , dark condition
Terminal name
Circuit diagram
Limit
Unit
Parameter
Min. Typ. Max.
"H" input
voltage
Test
conditions
and note
7.0
1.1
V
"L" input
voltage
CONT
0
0.3
"H" input
current
VIH=5.5V
1.0
µA
"L" input
current
-78
"H" input
voltage
VCC
-0.3
-60
VIL=0V
-42
7.0
V
"L" input
voltage
STB
0
"H" input
current
0.3
VIH=5.5V
3.0
µA
"L" input
current
-150 -100
VIL=0V
-50
"L" output
current
0.3
V
IOL=500µA
"H" leak
current
1.0
µA
VIN=5.5V
OUT
MITSUBISHI
(6/8)
MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
ADJUSTMENT RANGE OF ZONE SETTING RESISTANCE AND OUTPUT FUNCTION
In case of using volume 10KΩ for the setting resistance VR1
and VR2 , the adjustment range becomes the bottom figure.
M52959FP Zone adjustment range
Zone Decision result is outputted as
mentioned in the bottom figure by the digital
style from OUT1 and OUT2.
VR1 adjustment range
OUT1
near
Zone 1
L
L
Zone 2
H
L
Zone 3
L
H
Zone 4
H
H
VR2 adjustment range
far
input current raio I1 : I2
APPLICATION EXAMPLE
GND
10KΩ VR
1.0µF
VR2
CHN
VR1
GND
OUT2
OUT2
CHF
OUT1
OUT1
Vcc
CONT
CONT
STB
10KΩ VR
1.0µF
470µF
STB
Vcc
MITSUBISHI
(7/8)
OUT2
10Ω
MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
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MITSUBISHI
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