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ISL29030A の電気的特性と機能

ISL29030AのメーカーはIntersilです、この部品の機能は「Low Power Ambient Light and Proximity Sensor」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL29030A
部品説明 Low Power Ambient Light and Proximity Sensor
メーカ Intersil
ロゴ Intersil ロゴ 




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ISL29030A Datasheet, ISL29030A PDF,ピン配置, 機能
Low Power Ambient Light and Proximity Sensor with Intelligent
Interrupt and Sleep Modes - Analog and Digital Out
ISL29030A
The ISL29030A is an integrated ambient and infrared
light-to-digital converter with a built-in IR LED driver
and I2C 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 of 2000 Lux) in 100ms per sample. The ADC
rejects 50Hz/60Hz flicker noise caused by artificial light
sources. The IALS pin provides an analog output current
proportional to the measured light (420μA FSR).
For proximity sensor (Prox) data conversions, the built-in
driver turns on an external 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 540μs conversion time.
The ISL29030A provides low power operation of ALS and
proximity sensing with a typical 138μA normal operation
current (110μA for sensors and internal circuitry, ~28μA
for external LED) with 220mA current pulses for a net
100μs, repeating every 800ms (or under).
The ISL29030A uses both a hardware pin and software
bits to indicate an interrupt event has occurred. An ALS
interrupt is defined as a measurement which is outside a
set window. A proximity interrupt is defined as a
measurement over a 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 ISL29030A 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 8 lead ODFN
package.
Pin Configuration
ISL29030A
8 LD ODFN (2.0X2.1X0.7MM)
TOP VIEW
Features
• Works Under All Light Sources Including Sunlight
• Dual ADCs Measure ALS/Prox Concurrently
• Intelligent Interrupt Scheme Simplifies μC Code
Ambient Light Sensing
• Simple Output Code Directly Proportional to lux
• 50Hz/60Hz Flicker Noise and IR Rejection
• Light Sensor Close to Human Eye Response
• Selectable 125/2000 Lux Range
• Analog 420μA Output Pin IALS Proportional to Lux
Proximity Sensing
• Proximity Sensor with Broad IR Spectrum
- Can Use 850nm and 950nm External IR LEDs
• IR LED Driver with I2C Programmable Sink Currents
- Net 100μs Pulse with 110mA or 220mA Amplitudes
- Periodic Sleep Time up to 800ms Between Pulses
• Ambient IR Noise Cancellation (Including Sunlight)
Intelligent and Flexible Interrupts
• Independent ALS/Prox Interrupt Thresholds
• Adjustable Interrupt Persistency
- 1/4/8/16 Consecutive Triggers Required Before
Interrupt
Ultra Low Power
• 138μA DC Typical Supply Current for ALS/Prox
Sensing
- 110μA for Sensors and Internal Circuitry
- 28μA Typical Current for External IR LED
(Assuming 220mA for 100μs Every 800ms)
• <1.0μA Supply Current When Powered Down
Easy to Use
• Set Registers; Wait for Interrupt
• I2C (SMBus Compatible) Output
• Temperature Compensated
• Tiny ODFN8 2.0x2.1x0.7 (mm) Package
Additional Features
• 1.7V to 3.63V Supply for I2C Interface
• 2.25V to 3.63V Sensor Power Supply
• Pb-Free (RoHS compliant)
IALS 1
8 IRDR
www.DataSheet4U.coVmDD 2 THERMAL 7 INT
GND 3
PAD
6 SDA
REXT 4
5 SCL
*THERMAL PAD CAN BE CONNECTED TO GND OR
ELECTRICALLY ISOLATED
Applications
• Display and Keypad Dimming Adjustment and
Proximity Sensing for:
- Mobile Devices: Smart Phone, PDA, GPS
- Computing Devices: Laptop PC, Netbook
- Consumer Devices: LCD-TV, Digital Picture Frame,
Digital Camera
• Industrial and Medical Light and Proximity Sensing
November 18, 2010
FN7722.0
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. 2010. 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.

1 Page





ISL29030A pdf, ピン配列
ISL29030A
Absolute Maximum Ratings (TA = +25°C)
VI2DCDBSuuspPpilny
Voltage
Voltage
between VDD and GND
(SCL, SDA) . . . . . . . .
.
.
.
.
.
.
.....
-0.5V
. .4.0V
to 4.0V
I2C Bus Pin Current (SCL, SDA) . . . . . . . . . . . . . . . . <10mA
REXT Pin Voltage . . . . . . . . . . . . . . . . -0.5V to VDD + 0.5V
IRDR Pin Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.5V
IALS Pin Voltage . . . . . . . . . . . . . . . . . -0.5V to VDD + 0.5V
INT Pin Voltage . . . . . . . . . . . . . . . . . . . . . . -0.5V to 4.0V
INT Pin Current . . . . . . . . . . . . . . . . . . . . . . . . . . . <10mA
ESD Rating
Human Body Model (Note 5) . . . . . . . . . . . . . . . . . . . 2kV
Thermal Information
Thermal Resistance (Typical, Note 4)
θJA (°C/W)
8 Ld ODFN. . . . . . . . . . . . . . . . . . . . . . . . .
88
Maximum Die Temperature . . . . . . . . . . . . . . . . . . . +90°C
Storage Temperature . . . . . . . . . . . . . . . . -40°C to +100°C
Operating Temperature . . . . . . . . . . . . . . . -40°C to +85°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact
product reliability and result in failures not covered by warranty.
NOTES:
4. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach”
features. See Tech Brief TB379.
5. ESD on all pins is 2kV except for IRDR, which is 1.5kV.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless
otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA
Electrical Specifications VDD = 3.0V, TA = +25°C, REXT = 499kΩ 1% tolerance.
PARAMETER
DESCRIPTION
CONDITION
MIN TYP MAX UNIT
VDD
Power Supply Range
2.25 3.0
SR_VDD Input Power-up Slew Rate
VDD Rising Edge between 0.4V and 2.25V 0.5
IDD_OFF Supply Current when Powered Down
ALS_EN = 0; PROX_EN = 0
0.1
IDD_NORM Supply Current for ALS+Prox in Sleep Time ALS_EN = 1; PROX_EN = 1
116
IDD_PRX_SLP Supply Current for Prox in Sleep Time
ALS_EN = 0; PROX_EN = 1
85
IDD_ALS Supply Current for ALS
ALS_EN = 1; PROX_EN = 0
102
fOSC
Internal Oscillator Frequency
5.25
tINTGR_ALS 12-bit ALS Integration/Conversion Time
88 100
tINTGR_PROX 8-bit Prox Integration/Conversion Time
0.54
IALS_OFF IALS Output Current when ALS = Disabled ALS_EN = 0; VI_ALS = 0V
3
IALS_0 IALS Output Current When Dark
ALS_EN = 1; ALS_RANGE = 1; E = 0 Lux
0.1
IALS_1
Current Output under Specified Conditions E = 53 lux, Fluorescent (Note 6),
ALS_RANGE = 0
161
3.63
0.8
135
112
100
0.6
V
V/ms
µA
µA
µA
µA
MHz
ms
ms
nA
µA
µA
IALS_2
Current Output under Specified Conditions E = 320 lux, Fluorescent (Note 6)
ALS_RANGE = 1
40 60 80 µA
IALS_F
VI_ALS
IALS Output Current At Full Scale
Compliance Voltage on IALS w/ 5%
Variation in Output Current
ALS_EN = 1; ALS Code = 4095
ALS_EN = 1; ALS Code = 4095
380 420 460
0 VDD-
0.8
µA
V
DATAALS_0 ALS Result when Dark
DATAALS_F Full Scale ALS ADC Code
www.DaΔtaDSAhTeAet4U.Ccooumnt Output Variation Over Three Light
DATA Sources: Fluorescent, Incandescent and
Sunlight
EAMBIENT = 0 lux, 2k Range
EAMBIENT > Selected Range Maximum Lux
(Note 9)
Ambient Light Sensing
1 3 Counts
4095 Counts
±10
%
DATAALS_1 Light Count Output with LSB of
0.0326 lux/count
E = 53 lux, Fluorescent (Notes 6, 9),
ALS_RANGE = 0
1638
Counts
DATAALS_2 Light Count Output With LSB of
0.522 lux/count
E = 320 lux, Fluorescent (Note 6)
ALS_RANGE = 1
460 614 768 Counts
3 FN7722.0
November 18, 2010


3Pages


ISL29030A 電子部品, 半導体
ISL29030A
Register Map
There are ten 8-bit registers accessible via I2C. Registers 0x1 and 0x2 define the operation mode of the device.
Registers 0x3 through 0x7 store the various ALS/IR/Prox thresholds which trigger interrupt events. Registers 0x8
through 0xA store the results of ALS/IR/Prox ADC conversions.
TABLE 1. ISL29030A REGISTERS AND REGISTER BITS
BIT
ADDR REG NAME
7
6
5
4
3
2
1
0 DEFAULT
0x00
(n/a)
0x01 CONFIGURE PROX EN
0x02 INTERRUPT PROX_FLAG
0x03 PROX_LT
0x04 PROX_HT
0x05 ALSIR_TH1
0x06 ALSIR_TH2
0x07 ALSIR_TH3
0x08 PROX_DATA
0x09 ALSIR_DT1
0x0A ALSIR_DT2
0x0E
TEST1
0x0F
TEST2
(Reserved)
PROX_SLP[2:0]
PROX_DR
PROX_PRST[1:0]
(Write 0) ALS_FLAG
PROX_LT[7:0]
PROX_HT[7:0]
ALSIR_LT[7:0]
ALSIR_HT[3:0]
ALSIR_HT[11:4]
PROX_DATA[7:0]
ALSIR_DATA[7:0]
(Unused)
(Write as 0x00)
(Write as 0x00)
ALS_EN ALS_RANGE ALSIR_MODE
ALS_PRST[1:0]
INT_CTRL
ALSIR_LT[11:8]
ALSIR_DATA[11:8]
(n/a)
0x00
0x00
0x00
0xFF
0x00
0xF0
0xFF
0x00
0x00
0x00
0x00
0x00
Register Descriptions
BIT #
7:0
ACCESS
RO
TABLE 2. REGISTER 0x00 (RESERVED)
DEFAULT
NAME
FUNCTION/OPERATION
(n/a)
(n/a) Reserved - no need to read or write
TABLE 3. REGISTER 0x01 (CONFIGURE) - PROX/ALS CONFIGURATION
BIT # ACCESS DEFAULT NAME
FUNCTION/OPERATION
7
RW
0x00
PROX_EN
(Prox Enable)
When = 0, proximity sensing is disabled
When = 1, continuous proximity sensing is enabled. Prox data will be ready 0.54ms
after this bit is set high
6:4 RW
0x00
PROX_SLP
(Prox Sleep)
For bits 6:4 = (see the following)
111; sleep time between prox IR LED pulses is 0.0ms (run continuously)
110; sleep time between prox IR LED pulses is 12.5ms
101; sleep time between prox IR LED pulses is 50ms
100; sleep time between prox IR LED pulses is 75ms
011; sleep time between prox IR LED pulses is 100ms
010; sleep time between prox IR LED pulses is 200ms
001; sleep time between prox IR LED pulses is 400ms
000; sleep time between prox IR LED pulses is 800ms
3
RW
0x00
PROX_DR When = 0, IRDR behaves as a pulsed 110mA current sink
(Prox Drive) When = 1, IRDR behaves as a pulsed 220mA current sink
2 RW 0x00
www.DataSheet4U.com
1 RW 0x00
ALS_EN When = 0, ALS/IR sensing is disabled
(ALS Enable) When = 1, continuous ALS/IR sensing is enabled with new data ready every 100ms
ALS_RANGE When = 0, ALS is in low-lux range
(ALS Range) When = 1, ALS is in high-lux range
0
RW
0x00
ALSIR_MODE When = 0, ALS/IR data register contains visible ALS sensing data
(ALSIR Mode) When = 1, ALS/IR data register contains IR spectrum sensing data
6 FN7722.0
November 18, 2010

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部品番号部品説明メーカ
ISL29030

Low Power Ambient Light and Proximity Sensor

Intersil
Intersil
ISL29030A

Low Power Ambient Light and Proximity Sensor

Intersil
Intersil


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