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PDF ISL29010 Data sheet ( Hoja de datos )
| Número de pieza | ISL29010 | |
| Descripción | Light-to-Digital Output Sensor | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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ISL29010
®
www.DataSheet4U.com
Data Sheet
Light-to-Digital Output Sensor with High
Sensitivity, Gain Selection, and I2C
Interface
The ISL29010 is an integrated light sensor with I2C
interface. It has an internal signed15-bit integrating type
ADC designed based on the charge-balancing conversion
technique. This ADC is capable of rejecting 50Hz and 60Hz
flicker caused by artificial light sources. The lux range select
feature allows the user to program the lux range for
optimized counts/lux.
In normal operation, power consumption is typically 250µA.
Furthermore, a power-down mode can be controlled by
software via the I2C interface, reducing power consumption
to less than 1µA.
Designed to operate on supplies from 2.5V to 3.3V, the
ISL29010 is specified for operation over the -40°C to +85°C
ambient temperature range.
Ordering Information
PART NUMBER
(Note)
TEMP.
PACKAGE
RANGE (°C) (Pb-Free)
PKG.
DWG. #
ISL29010IROZ-T7*
-40 to +85 6 Ld ODFN L6.2x2.1
ISL29010IROZ-EVALZ Evaluation Board
*Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets; molding compounds/die attach
materials and 100% matte tin plate - e3 termination finish, which is
RoHS compliant and compatible with both SnPb and Pb-free
soldering operations. Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J STD-020.
Block Diagram
PHOTODIODE
ARRAY
VDD
1
LIGHT
DATA
PROCESS
IREF
FOSC
3
REXT
INTEGRATING
ADC
EXT
TIMING
216
COUNTER
2
GND
ISL29010
COMMAND
REGISTER
DATA
REGISTER
I2C
5 SCL
6 SDA
4
A0
February 13, 2008
FN6414.0
Features
• Range select via I2C
- Range 1 = 0 lux to 2,000 lux
- Range 2 = 0 lux to 8,000 lux
- Range 3 = 0 lux to 32,000 lux
- Range 4 = 0 lux to 128,000 lux
• Human eye response (540nm peak sensitivity)
• Temperature compensated
• Signed 15-bit resolution
• Adjustable resolution: up to 20 counts per lux
• 1 bit I2C address selection
• Simple output code, directly proportional to lux
• IR + UV rejection
• 50Hz/60Hz rejection
• 2.5V to 3.3V supply
• 6 Ld ODFN (2.1mmx2mm)
• Pb-free (RoHS compliant)
• Operating temperature range: -40°C to +85°C
Applications
• Display and keypad backlight dimming for
- Mobile Devices: Smart phone, PDA, and GPS
- Computing devices: Notebook PC, UMPC web pod
- Consumer devices: LCD-TV, digital picture frame, and
digital cameras
• Industrial and medical light sensing
Pinout
ISL29010
(6 LD ODFN)
TOP VIEW
VDD 1
GND 2
REXT 3
6 SDA
5 SCL
4 A0
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2008. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL29010
Register Set
There are eight registers that are available in the ISL29010. Table 1 summarizes the available registers and their functions.
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TABLE 1. REGISTER SET
BIT
ADDR REG NAME
7
6
5
4
3 2 1 0 DEFAULT
00h COMMAND ADCE
ADCPD
TIMM
0
ADCM1 ADCM0
RES1
RES0
00h
01h CONTROL
0
0
0
0
GAIN1
GAIN0
0
0 00h
04h LSB
S7
S6
S5
SENSOR
S4
S3 S2 S1 S0 00h
05h MSB S15 S14 S13
S12
S11 S10
S9
S8
00h
SENSOR
06h LSB TIMER
T7
T6
T5
T4
T3 T2 T1 T0 00h
07h MSB TIMER T15 T14 T13
T12
T11 T10
T9
T8
00h
TABLE 2. WRITE ONLY REGISTERS
ADDRESS
b1xxx_xxxx
REGISTER
NAME
sync_I2C
FUNCTIONS/DESCRIPTION
Writing a logic 1 to this address bit
ends the current ADC-integration
and starts another. Used only with
External Timing Mode.
bx1xx_xxxx
clar_int
Writing a logic 1 to this address bit
clears the interrupt.
Command Register 00(hex)
The Read/Write command register has five functions:
1. Enable; Bit 7.This function either resets the ADC or
enables the ADC in normal operation. A logic 0 disables
ADC to reset-mode. A logic 1 enables ADC to normal
operation.
BIT 7
0
1
TABLE 3. ENABLE
OPERATION
Disable ADC-core to reset-mode (default)
Enable ADC-core to normal operation
2. ADCPD; Bit 6. This function puts the device in a
power-down mode. A logic 0 puts the device in normal
operation. A logic 1 powers down the device.
BIT 6
0
1
TABLE 4. ADCPD
OPERATION
Normal operation (default)
Power Down
3. Timing Mode; Bit 5. This function determines whether the
integration time is done internally or externally. In Internal
Timing Mode, integration time is determined by an
internal dual speed oscillator (fOSC), and the n-bit
(n = 4, 8, 12, 16) counter inside the ADC. In External
Timing Mode, integration time is determined by the time
between three consecutive external-sync sync_I2C
pulses commands.
BIT 5
0
1
TABLE 5. TIMING MODE
OPERATION
Internal Timing Mode. Integration time is internally
timed determined by fOSC, REXT, and number of
clock cycles.
External Timing Mode. Integration time is externally
timed by the I2C host.
4. Photodiode Select Mode; Bits 3 and 2. Setting Bit 3 and
Bit 2 to 1 and 0 enables ADC to give light count DATA
output.
TABLE 6. PHOTODIODE SELECT MODE; BITS 2 AND 3
BITS 3:2
MODE
0:0 Disable ADC
0:1 Disable ADC
1:0 Light count DATA output in signed (n - 1) bit *
1:1 No operation.
* n = 4, 8, 12,16 depending on the number of clock cycles
function.
5. Width; Bits 1 and 0. This function determines the number
of clock cycles per conversion. Changing the number of
clock cycles does more than just change the resolution of
the device. It also changes the integration time, which is
the period the device’s analog-to-digital (A/D) converter
samples the photodiode current signal for a lux
measurement.
BITS 1:0
0:0
0:1
1:0
1:1
TABLE 7. WIDTH
NUMBER OF CLOCK CYCLES
216 = 65,536
212 = 4,096
28 = 256
24 = 16
5 FN6414.0
February 13, 2008
5 Page 
ISL29010
Typical Performance Curves (REXT = 100kΩ) (Continued)
www10.DatTaAS=he+e2t74°UC .com
0 lux
8
6
4
RANGE 2
2
0
2.0 2.3 2.6 2.9 3.2 3.5 3.8
SUPPLY VOLTAGE (V)
FIGURE 11. OUTPUT CODE FOR 0 LUX vs SUPPLY VOLTAGE
1.015
1.010
1.005
TA = +27°C
5000 lux
1.000
0.995
200 lux
0.990
2.0 2.3 2.6 2.9 3.2 3.5 3.8
SUPPLY VOLTAGE (V)
FIGURE 12. OUTPUT CODE vs SUPPLY VOLTAGE
320.0
319.5
TA = +27°C
319.0
318.5
318.0
2.0 2.3 2.6 2.9 3.2 3.5 3.8
SUPPLY VOLTAGE (V)
FIGURE 13. OSCILLATOR FREQUENCY vs SUPPLY VOLTAGE
315
VDD = 3V
305
295
5000 lux
RANGE 3
285
200 lux
RANGE 1
275
265
-60
-20 20 60
TEMPERATURE (°C)
100
FIGURE 14. SUPPLY CURRENT vs TEMPERATURE
10
VDD = 3V
0 lux
8
6
4
RANGE 2
2
0
-60 -20 20 60
TEMPERATURE (°C)
FIGURE 15. OUTPUT CODE FOR 0 LUX vs TEMPERATURE
1.080
VDD = 3V
1.048
1.016
5000 lux
RANGE 3
0.984
200 lux
RANGE 1
0.952
0.920
-60
-20 20 60
TEMPERATURE (°C)
100
FIGURE 16. OUTPUT CODE vs TEMPERATURE
11 FN6414.0
February 13, 2008
11 Page | ||
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| PDF Descargar | [ Datasheet ISL29010.PDF ] | |
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