Integrated Low Voltage I2C Digital Proximity Sensor - LTR-659PS-01

  • Integrated Low Voltage I2C Digital Proximity Sensor
  • Integrated Low Voltage I2C Digital Proximity Sensor
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• I2C interface (Fast Mode @ 400kbit/s)
• Ultra-small ChipLED package
• Built-in temperature compensation circuit
• Low active power consumption with standby mode
• Supply voltage range from 2.4V to 3.6V capable of 1.7V logic voltage
• Operating temperature range from -30°C to +70°C
• RoHS and Halogen free compliant

  • Model Number: LTR-659PS-01
  • Data Sheet: Date Sheet File
Quantity:
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Product Specification

LTR-659PS-01 Digital Proximity Sensor Description
The LTR-659PS-01 is an integrated low voltage I2C digital proximity sensor [PS] with built-in emitter, in a single miniature chipled lead-free surface mount package. With built-in proximity sensor (emitter and detector), LTR-659PS-01 offers the feature to detect object at a user configurable distance.

The sensor supports an interrupt feature that removes the need to poll the sensor for a reading which improves system efficiency. The sensor also supports several features that help to minimize the occurrence of false triggering. This CMOS design and factory-set one time trimming capability ensure minimal sensor-to-sensor variations for ease of manufacturability to the end customers.

LTR-659PS-01 Digital Proximity Sensor Features
• I2C interface (Fast Mode @ 400kbit/s)
• Ultra-small ChipLED package
• Built-in temperature compensation circuit
• Low active power consumption with standby mode
• Supply voltage range from 2.4V to 3.6V capable of 1.7V logic voltage
• Operating temperature range from -30°C to +70°C
• RoHS and Halogen free compliant
•  Proximity Senso
   - Built-in LED driver, emitter and detector
   - Programmable LED drive settings
   - 11-bit effective resolution
   - High ambient light suppression

LTR-659PS-01 Digital Proximity Sensor Applications
To detect and control display backlight in presence of object in
• Mobile Devices: Mobile phone, PDA
• Computing Devices: Notebook PC, Desktop Monitor
• Consumer Devices: LCD/PDP TV backlight systems, Cameras, Personal Navigation Device, Digital Photo Frame
• Dashboard
             
LTR-659PS-01 Digital Proximity Sensor Ratings and Specifications
Absolute Maximum Ratings at Ta = 25°C

Parameter
Symbol
Rating
Unit
Supply Voltage
VDD
3.8
V
Digital Voltage Range
SCL, SDA, INT
-0.5 to 3.8
V
Digital Output Current
SCL, SDA, INT
-1 to 20
mA
Storage Temperature
Tstg
-40 to 10
°C
Note: Exceeding these ratings could cause damage to the sensor. All voltages are with respect to ground. Currents are positive into, negative out of the specified terminal.

Recommended Operating Conditions
Description
Symbol
Min.
Typ.
Max.
Unit
Supply Voltage
VDD
2.4
3.6 V
LED Supply Voltage
VLED
2.5
4.35
V
Interface Bus Power Supply Voltage
VIO
1.7
3.6 V
Operating Temperature
Tope
-30
70 °C

Electrical & Optical Specifications 
All specifications are at VDD = 3.0V, Tope= 25°C, unless otherwise noted.
Parameter
Min.
Typ.
Max.
Unit
Condition
Active Supply Current


250
uA
Active Mode, Tope= 25°C
Standby Current


5
uA
Standby / Sleep Mode
Initial Startup Time
60 100
1000 ms
(Note 1)
Wakeup Time from Standby


10
ms (Note 1)

Proximity Sensor
Parameter
Min.
Typ.
Max.
Unit
Condition
Full Scale ADC Count


2047
count

Peak Sensitivity
840 855 870 nm
Detection Distance
20

mm 100mA, 4 pulses, 18% Gray Card
Ambient Light Suppression


50k
lux
Direct sunlight
LED Pulse Count
1
15 pulses

LED Pulse Frequency
30k

100k
Hz
Increment of 10k Hz
LED Duty Cycle
25
100 % Increment of 25%
LED Peak Current

5
mA LED Peak Current = 000

10
mA
LED Peak Current = 001

20
mA
LED Peak Current = 010

50
mA
LED Peak Current = 011

100
mA
LED Peak Current = 1XX
Optical Rise / Fall Time
100

ns


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