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ams Datasheet

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[v1-01] 2019-Nov-20

TSL2672 − Absolute Maximum R atings

Note(s):

1. Parameter is ensured by design or characterization and is not tested.

2. Proximity noise is defined as one standard deviation of 600 samples.

3. Proximity noise typically increases as √PPULSE

4. Greater operating distances are achievable with appropriate optical system design considerations. See available ams application

notes for additional information.

5. Maximum operating distance is dependent upon emitter and the reflective properties of the object’s surface.

6. Proximity noise test was done using the following circuit:

Gain scaling, relative

to 1x gain setting

PGAIN = 2x

2

x

PGAIN = 4x

4

PGAIN = 8x

8

Noise (1) (2) (3)

Ee = 0, PTIME = 0xFB, PPULSE = 4

(6)

CH0 diode

0.5

%FS

CH1 diode

0.5

LED pulse count (1)

0255

pulses

LED pulse period

16.0

μs

LED pulse width —

LED ON time

7.3

μs

LED drive current

ISINK sink current

@ 1.6 V, LDR pin

120 mA: PDRIVE = 0 & PDL = 0

87

116

145

mA

60 mA: PDRIVE = 1 & PDL = 0

58

30 mA: PDRIVE = 2 & PDL = 0

29

15 mA: PDRIVE = 3 & PDL = 0

14.5

15 mA: PDRIVE = 0 & PDL =1

12.9

7.5 mA: PDRIVE =1 & PDL =1

6.4

3.8 mA: PDRIVE =2 & PDL =1

3.2

1.9 mA: PDRIVE =3 & PDL =1

1.6

Maximum operating

distance (1)(4)(5)

PDRIVE = 0 and PDL = 0 (116 mA), PPULSE = 64

18

inches

Emitter:

λp = 850 nm, 20º half angle, and 60 mW/sr

Object: 16

× 20-inch, 90% reflective Kodak Gray

Card (white surface)

Optics: Open view (no glass, no optical

attenuation)

Parameter

Test Conditions

Min

Typ

Max

Unit

TSL2672

VDD

1

mF

22

W

15.0

W

1

34

VDD

GND

LDR