Data Sheet

LED Pulse Amplitude (0x0C–0x10)
These bits set the current level of each LED as shown in Table 8.
Table 8. LED Current Control
*Actual measured LED current for each part can vary significantly due to the trimming methodology.
REGISTER B7 B6 B5 B4 B3 B2 B1 B0
REG
ADDR
POR
STATE
R/W
LED Pulse
Amplitude
LED1_PA[7:0] 0x0C 0x00 R/W
LED2_PA[7:0] 0x0D 0x00 R/W
LED Pulse
Amplitude
LED3_PA[7:0] 0x0E 0x00 R/W
RESERVED 0x0F 0x00 R/W
Proximity Mode
LED Pulse
Amplitude
PILOT_PA[7:0] 0x10 0x00 R/W
LEDx_PA [7:0] TYPICAL LED CURRENT (mA)*
0x00h 0.0
0x01h 0.2
0x02h 0.4
… …
0x0Fh 3.1
… …
0x1Fh 6.4
… …
0x3Fh 12.5
… …
0x7Fh 25.4
… …
0xFFh 50.0
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Maxim Integrated │ 21
MAX30105 High-Sensitivity Optical Sensor
for Smoke Detection Applications