TMD2725 Datasheet, PDF (10/50 Pages) ams AG – The device features advanced proximity measurement

Figure 15:
Typical Proximity Angular Response
TMD2725 − Typical Operating Characteristics
Sato - CH1 Angular
120.0%
100.0%
CH1 - IR LED - Pitch
CH1 - IR LED - Yaw
80.0%
60.0%
40.0%
20.0%
0.0%
-90 -80 -70 -60 -50 -40 -30 -20 -10 0
10 20 30 40 50 60 70 80 90
Note(s):
1. Pitch = X/Z Plane
2. Yaw = Y/Z Plane
Figure 16:
Proximity Operation of TMD2725
Proximity Operating Range using six 90mA pulses, while varying Gain and Pulse Length
250
200
150
100
50
0
0
5
10 15 20 25 30 40 50 60 70 80 90 100 110 120 130 140 150
Distance to Target in mm
4μs, 1X Gain
8μs, 2X Gain
16μs, 4X Gain
32μs, 8X Gain
Proximity Operation: By varying Gain, LED drive current, number of LED pulses and LED pulse duration the
proximity detection range can be adjusted.
Page 10
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ams Datasheet
[v1-11] 2016-Sep-20