Datasheet
LED Pulse Amplitude (0x0C–0x0F)
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
LED3_PA[7:0] 0x0E 0x00 R/W
LED4_PA[7:0] 0x0F 0x00 R/W
LEDx_PA [7:0] TYPICAL LED CURRENT (mA)*
0x00h 0.0
0x01h 0.2
0x02h 0.4
… …
0x0Fh 3.0
… …
0x1Fh 6.2
… …
0x3Fh 12.6
… …
0x7Fh 25.4
… …
0xFFh 51.0
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MAX30101 High-Sensitivity Pulse Oximeter and
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