TSL2671

DIGITAL PROXIMITY DETECTOR

TAOS118 − JANUARY 2011

4

r

r

Copyright

E 2011, TAOS Inc.

The LUMENOLOGY

r Company

www.taosinc.com

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Active — LDR pulse off

175

250

Supply current

Wait mode

65

μA

Supply current

Sleep mode

2.5

4

μA

V

INT SDA output low voltage

3 mA sink current

0

0.4

V

INT, SDA output low voltage

6 mA sink current

0

0.6

V

Leakage current, SDA, SCL, INT pins

−5

5

μA

Leakage current, LDR pin

± 10

μA

V

SCL SDA input high voltage

TSL26711, TSL26715

V

SCL, SDA input high voltage

TSL26713, TSL26717

1.25

V

V

SCL SDA input low voltage

TSL26711, TSL26715

V

SCL, SDA input low voltage

TSL26713, TSL26717

0.54

V

PARAMETER

TEST CONDITIONS

CONDITION

MIN

TYP

MAX

UNIT

Supply current

LDR pulse on

3

mA

ADC conversion time step size

PTIME = 0xFF

2.58

2.72

2.9

ms

ADC number of integration steps

1

256

steps

ADC counts per step

PTIME = 0xFF

0

1023

counts

IR LED pulse count

0

255

pulses

Pulse period

16.3

μs

Pulse — LED on time

7.2

μs

PDRIVE=0

75

100

125

LED Drive

PDRIVE=1

50

mA

LED Drive

LDR pin

PDRIVE=2

25

mA

PDRIVE=3

12.5

Operating distance (See note 1)

18

inches

NOTE 1: Proximity Operating Distance is dependent upon emitter properties and the reflective properties of the proximity surface. The nominal

value shown uses an IR emitter with a peak wavelength of 850 nm and a 20

° half angle. The proximity surface used is 90% reflective

(white surface) 16

× 20-inch Kodak Gray Card. 60 mw/SR, 100 mA, 64 pulses, open view (no glass). Note: Greater distances are

achievable with appropriate system considerations.

PARAMETER

TEST CONDITIONS

CHANNEL

MIN

TYP

MAX

UNIT

Wait step size

WTIME = 0xFF

2.58

2.72

2.9

ms

Wait number of integration steps

1

256

steps