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| 型号： | ISL29043IROMZ-T7 |
| 厂商： | Intersil |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC SENSOR PROX/AMB LIGHT 10-ODFN |
| 标准包装： | 1,000 |
| 带接近传感器： | 是 |
| 波长： | 855nm |
| 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： | 10-WFDFN |
| 包装： | 带卷 (TR) |
DESIGN
OMMEN REPLACEMEN
OT REC D
ME N D E 4A
N
R E C OM ISL2904
S
DED F OR NEW T PART
Low Power Ambient Light and Proximity Sensor with
Internal IR-LED and Digital Output
ISL29043
The ISL29043 is an integrated ambient and infrared
light-to-digital converter with a built-in IR LED and I 2 C Interface
(SMBus Compatible). This device uses two independent ADCs
for concurrently measuring ambient light and proximity in
parallel. The flexible interrupt scheme is designed for minimal
microcontroller utilization.
For ambient light sensor (ALS) data conversions, an ADC
converts photodiode current (with a light sensitivity range up to
2000 Lux) in 100ms per sample. The ADC rejects 50Hz/60Hz
flicker noise caused by artificial light sources.
For proximity sensor (Prox) data conversions, the built-in driver
turns on an internal infrared LED and the proximity sensor ADC
converts the reflected IR intensity to digital. This ADC rejects
ambient IR noise (such as sunlight) and has a 540 μ s
conversion time.
The ISL29043 provides low power operation of ALS and
proximity sensing with a typical 136 μ A normal operation
current (110 μ A for sensors and internal circuitry, ~28 μ A for
LED) with 220mA current pulses for a net 100 μ s, repeating
every 800ms (or under).
The ISL29043 uses both a hardware pin and software bits to
indicate an interrupt event has occurred. An ALS interrupt is
defined as a measurement that is outside a set window. A
proximity interrupt is defined as a measurement over a
Features
? Internal LED + Sensor = Complete Solution
? Works Under All Light Sources Including Sunlight
? Dual ADCs Measure ALS/Prox Concurrently
? <1.0 μ A Supply Current When Powered Down
? Temperature Compensated
? Pb-Free (RoHS compliant)
Intelligent and Flexible Interrupts
? Independent ALS/Prox Interrupt Thresholds
? Adjustable Interrupt Persistency
- 1/4/8/16 Consecutive Triggers Required Before Interrupt
Applications
? Display and Keypad Dimming Adjustment and Proximity
Sensing for:
- Mobile Devices: Smart Phone, PDA, GPS
- Computing Devices: Laptop PC, Netbook, Tablet PC
- Consumer Devices: LCD-TV, Digital Picture Frame, Digital
Camera
- Industrial and Medical Light and Proximity Sensing
Related Literature
? See AN1436 , “Proximity Sensors”
threshold limit. The user may also require that both ALS/Prox
interrupts occur at once, up to 16 times in a row before
activating the interrupt pin.
The ISL29043 is designed to operate from 2.25V to 3.63V over
the -40°C to +85°C ambient temperature range. It is packaged in
a clear, lead-free 10 Ld ODFN package.
255
V DD
V LED
SLAVE_0
R1
10k ?
R2
10k ?
R3
10k ?
V I2C PULL-UP
I 2 C MASTER
μCONTROLLER
INT
SDA
SCL
204
153
110mA (18% GREY CARD)
220mA (18% GREY CARD)
4 GND
C2
1μF
1 LED+ LED-
C1
1.0μF 2 ADDR0 IRDR
3 V DD INT
C3
0.1μF SDA
5 REXT SCL
10
9
8
7
6
SLAVE_1
SDA
SCL
I 2 C SLAVE_n
SDA
SCL
102
51
110mA (WHITE COPY PAPER)
220mA (WHITE COPY PAPER)
ISL29043
R EXT
499k ?
0
0
25
50
75
100
125
150
DISTANCE (mm)
FIGURE 1. TYPICAL APPLICATION DIAGRAM
FIGURE 2. PROXIMITY RESPONSE vs DISTANCE
February 9, 2012
FN7935.0
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 Inc. 2012. 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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| ISL29044AIROMZ-T7 | 功能描述:环境光传感器 Ambient Light and Proximity Sensor IC RoHS:否 制造商:Vishay Semiconductors 工作电源电压: 峰值波长:570 nm 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:T-1 封装:Bulk |
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