|
|
PDF TMD2772 Data sheet ( Hoja de datos )
| Número de pieza | TMD2772 | |
| Descripción | Digital ALS and Proximity Module | |
| Fabricantes | ams | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TMD2772 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
TMD2772/
TMD2772WA
Digital ALS and Proximity Module
General Description
The TMD2772/TMD2772WA family of devices provides digital
ambient light sensing (ALS), a complete proximity detection
system, and digital interface logic in a single 8-pin surface
mount module. The devices are register-set and pin-compatible
with the TMD2771 family of devices and include new and
improved ALS and proximity detection features and are
available with 25° and 50° fields of view. The ALS enhancements
include a reduced-gain mode that extends the operating range
in sunlight. Proximity detection includes improved
signal-to-noise performance and more accurate factory
calibration. A proximity offset register allows compensation for
optical system crosstalk between the IR LED and the sensor. To
prevent false proximity data measurement readings, a
proximity saturation indicator bit signals that the internal
analog circuitry has reached saturation.
The TMD2772/TMD2772WA ALS is based on the ams patented
dual-diode technology that enables accurate results and
approximates human eye response to light intensity under a
variety of lighting conditions. The proximity detection system
includes an LED driver and an IR LED, which are factory trimmed
to eliminate the need for end-equipment calibration due to
component variations.
Ordering Information and Content Guide appear at end of
datasheet.
Key Benefits & Features
The benefits and features of TMD2772/TMD2772WA, Digital ALS
and Proximity Module are listed below:
Figure 1:
Added Value of Using TMD2772/TMD2772WA
Benefits
Features
Minimizes board space requirements
Approximates Human Eye Response over a wide
variety of lighting conditions. Achieves accurate
sensing behind spectrally dark glass.
Ambient Light Sensing, Proximity Detection, and IR LED in
a Single Module
Ambient Light Sensing (ALS)
• Wide variety of programmable features which
enable 8,000,000:1 Dynamic Range with very High
Sensitivity
ams Datasheet, Confidential
[v1-20] 2014-Jul-21
Page 1
Document Feedback
1 page  
TMD2772/ TMD2772WA − Absolute Maximum Ratings
Absolute Maximum Ratings
Figure 6:
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Rating”
may cause permanent damage to the device. These are stress
ratings only. Functional operation of the device at these or any
other conditions beyond those indicated under “Operating
Conditions” is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device
reliability.
Symbol
VDD (1)
VLDR (2)
VLEDA (3)
Tstg
Parameter
Supply Voltage
Voltage on LDR signal with LDR = off.
• TA between 0-70° C
• TA outside of 0-70° C
LED supply voltage on LEDA input
• TA between 0-70° C
• TA outside of 0-70° C
Digital I/O Voltage except LDR
Output terminal current except LDR
Storage temperature range
ESD tolerance, Human Body Model
Min Max Unit
3.8 V
4.8 V
4.4
4.8 V
4.4
-0.5 3.8
-1 20 mA
-40 85
°C
2000
V
Note(s) and/or Footnote(s):
1. All voltages are with respect to GND.
2. Maximum voltage with LDR = off.
3. Maximum 4.8V DC over 7 years lifetime. Maximum 5.0V spikes with up to 250s cumulative duration over 7 years lifetime. Maximum
5.5V spikes with up to 10s (=1000* 10ms) cumulative duration over 7 years lifetime.
ams Datasheet, Confidential
[v1-20] 2014-Jul-21
Page 5
Document Feedback
5 Page 
TMD2772/ TMD2772WA − Timing Characteristics
Timing Characteristics
Figure 15:
AC Electrical Characteristics, VDD = 3V, TA = 25°C (unless otherwise noted)
Parameter (1)
fSCL
tBUF
tHD;STA
tSU;STA
tSU;STO
tHD;DAT
tSU;DAT
tLOW
tHIGH
tF
tR
Ci
Conditions
Clock frequency (I²C only)
Bus free time between start and stop condition
Hold time after (repeated) start condition.
After this period, the first clock is generated.
Repeated start condition setup time
Stop condition setup time
Data hold time
Data setup time
SCL clock low period
SCL clock high period
Clock/data fall time
Clock/data rise time
Input pin capacitance
Min
0
1.3
0.6
0.6
0.6
10
100
1.3
0.6
Max
400
300
300
10
Note(s) and/or Footnote(s):
1. Specified by design and characterization; not production tested.
Figure 16:
Parameter Measurement Information
Timing Diagrams
SCL
tLOW
VIH
VIL
tHD; STA
SDA
tBUF
VIH
VIL
tHD; DAT
STOP START
tHIGH
tF
tSU; DAT
tSU; STA
START
tR
tSU; STO
STOP
Unit
kHz
μs
μs
μs
μs
ns
ns
μs
μs
ns
ns
pF
ams Datasheet, Confidential
[v1-20] 2014-Jul-21
Page 11
Document Feedback
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TMD2772.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TMD2771 | DIGITAL ALS and PROXIMITY MODULE |  Texas Advanced Optoelectronic Solutions |
| TMD2772 | Digital ALS and Proximity Module | ams |
| TMD2772 | DIGITAL ALS and PROXIMITY MODULE |  TAOS |
| TMD2772WA | Digital ALS and Proximity Module | ams |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |