Optical Sensor for Heart Rate Monitor - BH1790GLC
BH1790GLC is optical sensor for heart rate monitor in which LED driver and green light detection photo-diode are incorporated. This device drives LED and provides the intensity of light reflected from body. LED brightness can be adjusted by LED driver current and light emitting period. The photodiode having the high sensitivity for green light, excellent wavelength selectivity and excellent lrcut characteristics achieves accurate pulse wave detection.
Documents and Data for BH1790GLC Evaluation Board
|* This product is a STANDARD grade product and not recommend for on-vehicle devices.|
|Sensor Type||Heart Rate Monitor|
|Analog Supply Voltage (Min.) [V]||2.5|
|Analog Supply Voltage (Max.) [V]||3.6|
|IO Supply Voltage (Min.) [V]||1.7|
|IO Supply Voltage (Max.) [V]||3.6|
|Current Consumption [uA]||200.0|
|Standby Current [µA]||0.8|
|Red Light Cut||Yes|
|Operating Temperature (Min.)[°C]||-20|
|Operating Temperature (Max.)[°C]||85|
- Green filter with excellent wavelength selectivity.
- Built-in Ircut Filter.
- LED driver with current selection.
- Correspond to 1.8V I²C Interface.
Sensor Evaluation Kit SensorShield-EVK-003 Manual
The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.