ICHAUS IC-LQNP Pulse and ac light sensor Datasheet

iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 1/10
FEATURES
APPLICATIONS
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦ Receiver for through beam and
reflection light barriers with
background suppression
(sunlight) e.g. for presence
detection in power operated
gates, doors and windows etc.
Fast response amplifier with on-chip photodiode
High interference immunity due to monolithic design
Active photodiode area of ca. 1 mm²
Suitable for visible light and near infrared
Integrated band-pass filter with 140 kHz center frequency
Maximum gain obtained for pulse light of 1.4 µs and upwards
High LF and DC (ambient) light suppression
Transfer characteristics irrespective of ambient light level
Soft signal and noise limiter with excess ambient light
Fast recovery from flashes
Complementary analogue current source outputs,
transimpedance can be set by external resistor
♦ Single 5 to 12 V supply, low power consumption also with
bright ambient light
PACKAGES
♦ Options: customised COB versions
cDFN6
TO18-4F/L
oBGA LQ1C
BLOCK DIAGRAM
+4.5...13.2 V
VCC
iC−LQNP
iph
RL
1..30 k Ω
OUT
A
Vout
f
Vnout
NOUT
AC−AMP
RL
1..30 k Ω
GND
Copyright © 2009 iC-Haus
http://www.ichaus.com
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 2/10
DESCRIPTION
iC-LQNP is a sensor for pulse and alternating light
with a monolithically integrated photodiode. The device supersedes conventional photoreceivers, such
as those in light barriers, for example.
For visible light or near infrared the highest sensitivity for alternating light signals is reached at approximately 140 kHz; for pulse light this is reached
at 1.4 µs and upwards.
Changes in the photocurrent are amplified whereas
the photocurrents caused by background light
are electronically suppressed with over 60 dB (at
100 Hz).
The transimpedance can be selected within a range
of approximately 1 to 10 MΩ via the external load resistor.
The integrated amplifier forms a band-pass characteristic without using any external components. The
high pass filter suppresses ambient light and low frequency alternating light and the low pass filter reduces high frequency noise.
iC-LQNP is available as a 4-lead TO18 metal can
package with a glass lens or flat window. Customised
COB versions are also possible.
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 3/10
PACKAGES TO18-4F/L, cDFN6, oBGA LQ1C
PIN CONFIGURATION TO18-4F/L
PIN FUNCTIONS
No. Name Function
1
2
3
4
PIN CONFIGURATION cDFN6 3 mm x 3 mm
6
1
2
5
3
4
PIN CONFIGURATION oBGA LQ1C
GND
OUT
VCC
NOUT
Ground
High-Side Current Output
+4.5 to +13.2 V Supply Voltage
Low-Side Current Output
PIN FUNCTIONS
No. Name Function
1
2
3
4
5
6
GND
OUT
n.c.
n.c.
NOUT
VCC
Ground
High-Side Current Output
Low-Side Current Output
+4.5 to +13.2 V Supply Voltage
PIN FUNCTIONS
No. Name Function
1
2
3
4
GND
VCC
OUT
GND
Ground
+4.5 to +13.2 V Supply Voltage
High-Side Current Output
Ground
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 4/10
ABSOLUTE MAXIMUM RATINGS
Beyond these values damage may occur; device operation is not guaranteed.
Item
No.
Symbol
Parameter
Conditions
Unit
Min.
Max.
G001 VCC
Supply Voltage
0
15
V
G002 I()
Output Current
-4
4
mA
G003 Vd()
ESD susceptibility at all pins
1.5
kV
G004 Tj
Junction Temperature
-40
150
°C
G005 Ts
Storage Temperature
HBM, 100 pF discharged through 1.5 kΩ
see package specifications
THERMAL DATA
Operating Conditions: VCC = 4.5...13.2 V
Item
No.
Symbol
Parameter
Conditions
Unit
Min.
T01
Ta
Operating Ambient Temperature Range cDFN6
for other packages, see relevant package
specifications
T02
Tpk
Peak Temperature cDFN6
tpk < 10 s, convection reflow
MSL6, TOL (max. floor life 8 h at 30 °C and
60% RH)
See Customer Information #7 for detailed
information.
All voltages are referenced to ground unless otherwise stated.
All currents into the device pins are positive; all currents out of the device pins are negative.
-20
Typ.
Max.
85
°C
245
°C
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 5/10
ELECTRICAL CHARACTERISTICS
Operating Conditions: VCC = 4.5...13.2 V, R1 = 10 kΩ, CL = 20 pF, λ = 875 nm, Tj = -25...125 °C, if not otherwise stated.
Item
No.
Symbol
Parameter
Conditions
Unit
Min.
Typ.
Max.
Total Device
001
002
VCC
Permissible Supply Voltage
I(VCC)
Supply Current
003
Vs(OUT)
Output Saturation Voltage at OUT I() = -1 mA, Vs(OUT) = VCC − V(OUT)
004
Vs(NOUT) Output Saturation Voltage at
NOUT
I() = 1 mA
005
I()
Permissible Output Current in
NOUT, OUT
I(NOUT)
I(OUT)
006
I0()
Output Bias Current in OUT
E(PD) = 0
E(PD) = 0, VCC = 5 V, Tj = 27 °C
-235
E(PD) = 0
E(PD) = 0, VCC = 5 V, Tj = 27 °C
105
007
I0()
Output Bias Current in NOUT
4.5
E(PD) = 0
E(PD)ac = 0, E(PD)pk = 0,
E(PD)cw = 30 mW/cm², no load
0.4
0.8
0
-2
13.2
V
1.4
2
mA
mA
0.5
V
0.5
V
2
0
mA
mA
-105
µA
µA
235
µA
µA
-145
145
008
Vc()hi
Output Clamp Voltage hi
Vc()hi = V(OUT) − VCC, VCC = 0V, I() = 4 mA
0.25
0.5
1.4
V
009
Vc()lo
Output Clamp Voltage lo
I() = -4 mA
-1.4
-0.5
-0.25
V
Photodiode
101
Aph()
Radiant Sensitive Area
102
S(λ )max
Spectral Sensitivity
103
λar
Spectral Application Range
1
mm²
0.5
Se(λar ) = 0.1 × S(λ )max
500
A/W
1050
nm
30
mW/
cm²
Photocurrent Amplifier
201
E()cw
Permissible DC Irradiance
λ LED für S(λ )max, iC-LQNP Chip
202
Ev()cw
Ambient Light Susceptibility
standard illuminant A, T = 2856 K;
TO18-4F
50
TO18-4L
7
standard illuminant A, T = 2856 K;
TO18-4F
TO18-4L
70
10
203
204
205
206
Ev()cw
E()pk
Gpk
Gpk
Ambient Light Susceptibility
Permissible Peak Irradiance
mW/
cm²
mW/
cm²
klx
klx
|I((N)OUT)| increases or remains constant as
E()pk increases;
chip, TO18-4F
100
TO18-4L
15
Pulse Light Amplification 875 nm VCC = 5 V, E(PD)pk = 35 µW/cm²,
tr = tf = 0.1 µs, twpk = 1.4 µs;
chip, TO18-4F
TO18-4L
Pulse Light Amplification 850 nm see 205;
chip, TO18-4F
TO18-4L
100
700
220
1540
350
2500
250
1800
mW/
cm²
mW/
cm²
A/W
A/W
A/W
A/W
207
∆t()
Output Current Delay
see 205, |I((N)OUT)|: 0 → 50% peak value
1.5
µs
208
trec
Recovery Time
see 205,
settled better 10% to initial quiescent point
15
µs
209
210
trec
Power Flash Recovery Time
E(PD)pk = 35 mW/cm², twpk = 100 µs
60
µs
Gac
AC Light Amplification
f = fc, E(PD)ac = 35 µW/cm²;
Chip, TO18-4F
TO18-4L
400
2800
A/W
A/W
211
fc
Bandpass Center Frequency
Rl = 1 kΩ, CL = 20 pF
Rl = 10 kΩ, CL = 20 pF
140
120
kHz
kHz
212
fhc
Upper Cut-off Frequency (-3 dB)
R1 = 1 kΩ, CL = 20 pF
R1= 10 kΩ, CL = 20 pF
400
360
kHz
kHz
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 6/10
ELECTRICAL CHARACTERISTICS
Operating Conditions: VCC = 4.5...13.2 V, R1 = 10 kΩ, CL = 20 pF, λ = 875 nm, Tj = -25...125 °C, if not otherwise stated.
Item
No.
213
Symbol
Parameter
Conditions
Unit
flc
Lower Cut-off Frequency (-3 dB)
R1 = 1 kΩ, CL = 20 pF
R1 = 10 kΩ, CL = 20 pF
40
35
214
Q
Filter Q-Factor
Q = fc / (fhc - flc);
R1 = 1 kΩ, CL = 20 pF
R1 = 10 kΩ, CL = 20 pF
0.65
0.65
Min.
Typ.
Max.
kHz
kHz
215
216
G100
LF Suppression
f = 100 Hz
60
dB
Vn()
Output Noise Voltage (RMS)
VCC = 5 V, E(PD) = 0
VCC = 5 V, Ev(PD)dc ca. 15.000 lx,
standard illuminant A, T = 2856 K, chip
7
20
mV
mV
217
ton(VCC)
Power-On Setup Time
Tj = -25...70 °C
450
µs
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 7/10
CHARACTERISTICS: Diagrams
REF 8 mV
#AT 10 dB
PEAK
LIN
100
%
90
80
70
60
50
40
30
20
10
START 15 kHz
400
600
800
1000 nm
Figure 1: Typical relative spectral
sensitivity
STOP 1.5 MHz
RES BW 10 kHz
VBW 10 kHz
#SWP 10 sec
√
Figure 2: Output voltage noise [mV/ 10 kHz] to 10 kΩ/20 pF load with
Ev()dc < 500 lx
REF 8 mV
#AT 10 dB
PEAK
LIN
20E
10E
0E
1.0
10E
20E
optoBGA
TO-lens
30E
0.8
30E
TO-flat
0.6
0.4
60E
60E
START 15 kHz
Figure 3: Typical directional characteristics for TO18 and optoBGA™ packages
RES BW 10 kHz
STOP 1.5 MHz
VBW 10 kHz
#SWP 10 sec
√
Figure 4: Output voltage noise [mV/ 10 kHz] to 10 kΩ/20 pF load with
Ev()dc ca. 15.000 lx (standard illuminant A, T = 2856 K)
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 8/10
APPLICATION HINTS
Example Output Signals
Figure 5: Output signal for 2 µs pulse light.
Transmitter: LED 875 nm with tr = tf = 0.1 µs;
VCC = 5 V, R1 = 10 kΩ, CL = 20 pF;
Chan 1: V(OUT), 1 V/DIV vertically,
Chan 2: I(LED), 20 mA/DIV vertically
Figure 6: Output signal for 2 µs pulse light with noise
(accumulated over 256 samples)
Figure 7: Output signal for 2 µs pulse light, superimposed by ambient light of approx. 15000
Lux
Figure 8: As in Fig. 7, accumulated for visibility over
256 samples. Despite of bright ambient
light condition noise remains low level.
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 9/10
Figure 9: Recovery after 100 µs power pulse; back to
ready-to-receive state after approx. 35 µs;
Chan 1: V(OUT), 2 V/DIV vertically
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merchantability, fitness for a particular purpose or of any other nature are made hereunder with respect to information/specification or the products to which
information refers and no guarantee with respect to compliance to the intended use is given. In particular, this also applies to the stated possible applications or
areas of applications of the product.
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be put to.
iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 10/10
ORDERING INFORMATION
Type
Package
Order Designation
iC-LQNP
TO18-4L
TO18-4F
cDFN6
oBGA LQ1C
-
iC-LQNP TO18-4L
iC-LQNP TO18-4F
iC-LQNP cDFN6
iC-LQ oBGA LQ1C
iC-LQNP chip
For technical support, information about prices and terms of delivery please contact:
iC-Haus GmbH
Am Kuemmerling 18
D-55294 Bodenheim
GERMANY
Tel.: +49 (61 35) 92 92-0
Fax: +49 (61 35) 92 92-192
Web: http://www.ichaus.com
E-Mail: [email protected]
Appointed local distributors: http://www.ichaus.de/support_distributors.php
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