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NOA3301 데이터시트 PDF




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부품번호 NOA3301 기능
기능 Digital Proximity Sensor
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NOA3301 데이터시트, 핀배열, 회로
NOA3301
Digital Proximity Sensor
with Ambient Light Sensor
and Interrupt
Description
The NOA3301 combines an advanced digital proximity sensor and
LED driver with an ambient light sensor (ALS) and tri- mode I2C
interface with interrupt capability in an integrated monolithic device.
http://onsemi.com
8
Multiple power management features and very low active sensing
power consumption directly address the power requirements of battery
1
operated mobile phones and mobile internet devices.
CUDFN8
The proximity sensor measures reflected light intensity with a high
degree of precision and excellent ambient light rejection. The
CU SUFFIX
CASE 505AF
NOA3301 enables a proximity sensor system with a 32:1
programmable LED drive current range and a 30 dB overall proximity
PIN CONNECTIONS
detection threshold range. The photopic light response, dark current
compensation and high sensitivity of the ambient light sensor
VDD 1
8 SCL
eliminates inaccurate light level detection, insuring proper backlight
control even in the presence of dark cover glass.
VSS 2
7 SDA
The NOA3301 is ideal for improving the user experience by
enhancing the screen interface with the ability to measure distance for
LED_GND 3
6 NC
near/far detection in real time and the ability to respond to ambient
LED 4
5 INT
lighting conditions to control display backlight intensity.
(Top View)
Features
Proximity Sensor, LED driver and ALS in One Device
ORDERING INFORMATION
Very Low Power Consumption
Stand- by Current 5 mA (monitoring I2C interface only,
VDD =3 V)
ALS Operational Current 50 mA
Proximity Sensing Average Operational Current 100 mA
Average LED Sink Current 75 mA
Proximity Sensing
Device
Package
Shipping
NOA3301CUTAG* CUDFN8
(Pb- Free)
2500 /
Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
*Temperature Range: - 40Ct o 80C.
Proximity Detection Distance Threshold I2C Programmable with
12- bit Resolution and Four integration Time Ranges
(15- bit effective resolution)
Effective for Measuring Distances up to 100 mm and
Photopic Spectral Response Nearly Matches Human
Beyond
Eye
Excellent IR and Ambient Light Rejection Including
Dynamic Dark Current Compensation
Sunlight (up to 50k lux) and CFL Interference
Programmable LED Drive Current from 5 mA to
160 mA in 5 mA steps, No External Resistor Required
Linear Response Over the Full Operating Range
Senses Intensity of Ambient Light from 0.05 lux to 52k
lux with 21- bit Effective Resolution (16- bit converter)
Ambient Light Sensing
ALS Senses Ambient Light and Provides a 16- bit
Output Count on the I2C Bus Directly Proportional to
the Ambient Light Intensity
Continuously Programmable Integration Times
(6.25 ms, 12.5 ms, 25 msto 800 ms)
Precision on- Chip Oscillator (counts equal 0.1 lux at
100 ms integration time)
Semiconductor Components Industries, LLC, 2013
February, 2013 - Rev. 2
1
Publication Order Number:
NOA3301/D
http://www.Datasheet4U.com




NOA3301 pdf, 반도체, 판매, 대치품
NOA3301
Table 4. ELECTRICAL CHARACTERISTICS (Unless otherwise specified, these specifications apply over 2.3 V < VDD < 3.3 V,
1.7 V < VDD_I2C < 1.9 V, - 40C<T A <8 0C, 10 pF < Cb < 100 pF) (See Note 4)
Parameter
Symbol
Min Typ Max Unit
LED pulse current
ILED_pulse
5
160 mA
LED pulse current step size
ILED_pulse_step
5 mA
LED pulse current accuracy
ILED_acc
- 20
+20 %
Interval Timer Tolerance
Tolf_timer
- 35
+35 %
SCL clock frequency
fSCL_std
10
100 kHz
fSCL_fast
100
400
fSCL_hs
100
3400
Hold time for START condition. After this period,
the first clock pulse is generated.
THD;STA_std
tHD;STA_fast
4.0
0.6
- mS
-
tHD;STA_hs
0.160
-
Low period of SCL clock
tLOW_std
4.7
- mS
tLOW_fast
1.3
-
tLOW_hs
0.160
-
High period of SCL clock
tHIGH_std
4.0
- mS
tHIGH_fast
0.6
-
tHIGH_hs
0.060
-
SDA Data hold time
tHD;DAT_d_std
0
3.45 mS
tHD;DAT_d_fast
0
0.9
tHD;DAT_d_hs
0
0.070
SDA Data set- up time
tSU;DAT_std
250
- nS
tSU;DAT_fast
100
-
tSU;DAT_hs
10
Rise time of both SDA and SCL (input signals) (Note 5)
tr_INPUT_std
20
1000
nS
tr_INPUT_fast
20
300
tr_INPUT_hs
10
40
Fall time of both SDA and SCL (input signals) (Note 5)
tf_INPUT_std
20
300 nS
tf_INPUT_fast
20
300
tf_INPUT_hs
10
40
Rise time of SDA output signal (Note 5)
tr_OUT_std
20
300 nS
tr_OUT_fast
20 + 0.1 Cb
300
tr_OUT_hs
10
80
Fall time of SDA output signal (Note 5)
tf_OUT_std
20
300 nS
tf_OUT_fast
20 + 0.1 Cb
300
tf_OUT_hs
10
80
Set- up time for STOP condition
tSU;STO_std
4.0
- mS
tSU;STO_fast
0.6
-
tSU;STO_hs
0.160
-
Bus free time between STOP and START condition
tBUF_std
4.7
- mS
tBUF_fast
1.3
-
tBUF_hs
0.160
-
4. Refer to Figure 2 and Figure 3 for more information on AC characteristics.
5. The rise time and fall time are dependent on both the bus capacitance (Cb) and the bus pull- up resistor Rp. Max and min pull- up resistor
values are determined as follows: Rp(max) =t r( max)/(0.8473 x Cb) and Rp(min) = (Vdd_I2C – Vol(max))/Iol.
6. Cb = capacitance of one bus line, maximum value of which including all parasitic capacitances should be less than 100 pF. Bus capacitance
up to 400 pF is supported, but at relaxed timing.
http://onsemi.com
4

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NOA3301 전자부품, 판매, 대치품
NOA3301
TYPICAL CHARACTERISTICS
1.0
0.9 Fluorescent
0.8 ALS (5000K)
0.7 Human Eye
White LED
0.6 (5600K)
0.5
0.4 Fluorescent
(2700K)
0.3
0.2 Incandescent
0.1 (2850K)
0
200 300 400 500 600 700 800 900 1000
0
0.5 1.0 1.5
WAVELENGTH (nm)
RATIO
Figure 4. ALS Spectral Response (Normalized)
-2 0 -1 01.0 0
-3 0 0.9
-4 0 0.8
-5 0
-6 0
0.7
0.6
0.5
-7 0
0.4
0.3
-8 0 0.2
0.1
-9 0 0.0
10 20
30
40
50
60
70
80
90
-1 00
100
-1 10
110 Θ
-1 20
-1 30
-1 40
-1 50
- 160-1 70
180
120
130
SIDE VIEW
140
170 160 150
-90o
TOP VIEW
90o
Figure 5. ALS Light Source Dependency
(Normalized to Fluorescent Light)
-1 0
-2 0 1.0
0
10
20
-3 0 0.9
30
-4 0 0.8
40
-5 0
-6 0
0.7
0.6
0.5
50
60
-7 0
0.4
0.3
70
-8 0 0.2
80
0.1
-9 0 0.0
90
-1 00
-1 10
-1 20
100
110
120
Θ
SIDE VIEW
-1 30
130
-1 40
140
-1 50- 160 -1 70
180
170
150
160
-90o
TOP VIEW
Figure 6. ALS Response to White Light vs. Angle
Figure 7. ALS Response to IR vs. Angle
2.0
90o
8K
7K
6K
5K
4K
3K
2K
1K
0
0
100 200 300 400 500 600 700
Ev (lux)
Figure 8. ALS Linearity 0- 700 lux
800
1200
1000
800
600
400
200
0
0 10 20 30 40 50 60 70 80 90 100 110
Ev (lux)
Figure 9. ALS Linearity 0- 100 lux
http://onsemi.com
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