TSL27713FN TAOS, TSL27713FN Datasheet - Page 15

• Manufacturer Part Number: TSL27713FN
• Description: Light to Digital Converters Light to Digital w/Proximity
• Manufacturer: TAOS

Specifications of TSL27713FN

• Data Bus Width: 16 bit
• Peak Wavelength: 640 nm, 850 nm
• Maximum Operating Frequency: 795 KHz
• Operating Supply Voltage: 2.4 V to 3.6 V
• Operating Current: 175 uA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 30 C
• Interface Type: I2C
• Maximum Fall Time: 300 ns
• Maximum Rise Time: 300 ns
• Mounting Style: SMD/SMT
• Resolution: 16 bit
• Package / Case: DFN-6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Interrupts
The LUMENOLOGY r Company
The interrupt feature of the TSL2771 simplifies and improves system efficiency by eliminating the need to poll
the sensor for a light intensity or proximity value. The interrupt mode is determined by the PIEN or AIEN field
in the ENABLE register.
The TSL2771 implements four 16-bit-wide interrupt threshold registers that allow the user to define thresholds
above and below a desired light level. For ALS, an interrupt can be generated when the ALS clear data (CDATA)
exceeds the upper threshold value (AIHTx) or falls below the lower threshold (AILTx). For proximity, an interrupt
can be generated when the proximity data (PDATA) exceeds the upper threshold value (PIHTx) or falls below
the lower threshold (PILTx).
To further control when an interrupt occurs, the TSL2771 provides an interrupt persistence feature. This feature
allows the user to specify a number of conversion cycles for which an event exceeding the ALS interrupt
threshold must persist (APERS) or the proximity interrupt threshold must persist (PPERS) before actually
generating an interrupt. Refer to the register descriptions for details on the length of the persistence.
Integration
Clear
Prox
IR
Clear
Prox
ADC
ADC
ADC
IR
Figure 14. Programmable Interrupt
Clear
Data
Data
Prox
r
Data
IR
PIHTH(r 0x0B), PIHTL(r 0x0A8)
PILTH(r 09), PILTL(r 08)
AIHTH(r 07), AIHTL(r 06)
AILTH(r 05), AILTL(r 04)
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Lower Limit
Lower Limit
Upper Limit
Upper Limit
PPERS(r 0x0C, b7:4)
APERS(r 0x0C, b3:0)
Prox Persistence
ALS Persistence
LIGHT-TO-DIGITAL CONVERTER
r
with PROXIMITY SENSING
TAOS100A − FEBRUARY 2010
Copyright E 2010, TAOS Inc.
TSL2771
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