PD3151F Datasheet, PDF (2/3 Pages) Sharp Electrionic Components – Position Sensitive Detector with Location Hole (PSD *)

s Electro-optical Characteristics
Parameter
Reverse voltage
Dark current
Collector current
Terminal capacitance
Peak sensitivity wavelength
Sensitivity wavelength range
Response time
Resistance between electrodes
Error of position detection
Sensitivity
Forward voltage
Symbol
VR
Id
*2 _IL
Ct
λP
λ
*3 _{t r , t f}
Rie
*4 _-
R
VF
Conditions
IR = 10µ A
VR = 1V
VR = 1V, EV = 1000 lx
VR = 1V, f = 10kHz
-
-
VR = 1V, RL = 1kΩ
VR = 1V, Va = 0.5V
-
-
IF = 1mA
PD3151F
MIN.
30
-
6
-
-
770
-
320
-
-
-
TYP.
-
-
10
10
940
-
5
400
-
0.5
-
(Ta=25 ˚C)
MAX. Unit
-
V
1.5
nA
-
µA
30
pF
-
nm
1130 nm
30
µs
480
kΩ
± 25 µ m
-
A/W
1.0
V
*2 I _L= I₁+ I₂
where, I _1and I ₂ are collector current of A1 and A2 respectively.
Ev : Illuminance by CIE standard light source A (tungsten lamp)
*3 Test circuit for response time is shown below.
Input
Laser diode
λ = 830nm
R_L = 1kΩ
Input
V_R
V_R
Output
90%
10%
t_r
t_f
*4 75% area from detecting portion center to the edge of detecting portion
Definition of error of position detection
: Error of position detection of each incident light position is defined by the following formula, if electrical center position is I ₁= I ₂ .
L
Error of position detection ( µ m ) = ₂
x
I1 - I2
I1 + I2
-
Incident light position ( µm)
L : Length of light detector surface =1.5mm
Fig. 1 Spectral Sensitivity
120
100
80
60
40
20
0
600 700 800 900 1000 1100 1200
Wavelength λ (nm)
Fig. 2 Dark Current vs. Ambient Temperature
10^{- 6}
VR=1V
10^{- 7}
10^{- 8}
10^{- 9}
10^{- 10}
10^{- 11}
10^{- 12}
10^{- 13}
10^-
14
-
25
0
25
50
75
100
Ambient temperature Ta (˚C)