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参数资料
| 型号： | ISL29023IROZ-T7 |
| 厂商： | Intersil |
| 文件页数： | 1/14页 |
| 文件大小： | 0K |
| 描述： | IC SENSOR LIGHT-DGTL I2C 6ODFN |
| 标准包装： | 1 |
| 带接近传感器： | 无 |
| 波长： | 540nm |
| 电源电压： | 2.25 V ~ 3.63 V |
| 输出类型： | 数字 - I²C |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 其它名称： | ISL29023IROZ-T7DKR |
Integrated Digital Light Sensor with Interrupt
ISL29023
The ISL29023 is an integrated ambient and infrared light to
digital converter with I 2 C (SMBus Compatible) Interface. Its
advanced self-calibrated photodiode array emulates human eye
response with excellent IR rejection. The on-chip ADC is capable
of rejecting 50Hz and 60Hz flicker caused by artificial light
sources. The lux range select feature allows users to program the
lux range for optimized counts/lux.
For ambient light sensing, an internal 16-bit ADC has been
designed based upon the charge-balancing technique. The
ADC conversion time is nominally 90ms and is user adjustable
from 11μs to 90ms, depending on oscillator frequency and
ADC resolution. In normal operation, typical current
consumption is 70μA. In order to further minimize power
consumption, two power-down modes have been provided. If
polling is chosen over continuous measurement of light, the
auto-power-down function shuts down the whole chip after
each ADC conversion for the measurement. The other
power-down mode is controlled by software via the I 2 C
interface. The power consumption can be reduced to less than
0.3μA when powered down.
The ISL29023 supports a software and hardware interrupt that
remains asserted until the host clears it through I 2 C interface.
Function of ADC conversion continues without stopping after
interrupt is asserted.
Designed to operate on supplies from 2.25V to 3.63V with an I 2 C
supply from 1.7V to 3.63V, the ISL29023 is specified for
operation over the -40°C to +85°C ambient temperature range.
Features
? Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-bits ADC
? Integrated noise reduction . . . . . . . . . . . . . . . . . . . . . 50/60Hz
? Light sensor close to human eye response
? Excellent light sensor IR and UV rejection
? Range selection via I 2 C
- Range1 = 0.015 to 1,000 Lux
- Range2 = 0.06 to 4,000 Lux
- Range3 = 0.24 to 16,000 Lux
- Range4 = 0.96 to 64,000 Lux
? Shutdown modes . . . . . . . . . . . . . . . . . .Software & Automatic
? Supply current (Max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85μA
? Shutdown current (Max) . . . . . . . . . . . . . . . . . . . . . . . . . .0.3μA
? Control interface . . . . . . . . . . . . . . . I 2 C and SMB Compatible
? I 2 C power supply . . . . . . . . . . . . . . . . . . . . . . . . . 1.7V to 3.63V
? Sensor power supply . . . . . . . . . . . . . . . . . . . . . 2.25V to 3.63V
? Operating temperature range. . . . . . . . . . . . . -40°C to +85°C
? Small form factor package . . . . . . . . .6 Ld 2.0x2.1x0.7 ODFN
Applications
? Mobile devices: smart phone, PDA, GPS
? Computing devices: Notebook PC, Webpad
? Consumer devices: LCD-TV, digital picture frame, digital
camera
? Industrial and medical light sensing
1.2
HUMAN EYE
1.0
V BUS
VDD
10μF
0.1μF
0.8
R
R
R
1
0.6
VDD
SDA
6
SDA
0.4
IR SENSING
MCU
SCL
5
SCL
ISL29023
SENSOR
3
0.2
GPIO
4
INT
VSS
2
500k
0
AMBIENT LIGHT SENSING
-0.2
300
400
500
600
700
800
900
1000
1100
WAVELENGTH (nm)
FIGURE 1. ISL29023 TYPICAL APPLICATION DIAGRAM
FIGURE 2. NORMALIZED SPECTRAL RESPONSE FOR AMBIENT
LIGHT SENSING AND IR SENSING
April 25, 2013
FN6691.3
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2009, 2012, 2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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