MAX30105 High-Sensitivity Optical Sensor for Smoke Detection Applications General Description Benefits and Features The MAX30105 is an integrated particle-sensing module. High Sensitivity Optical Reflective Solution for It includes internal LEDs, photodetectors, optical elements, Detection of Wide Variety of Particle Sizes and low-noise electronics with ambient light rejection. The Tiny 5.6mm x 3.3mm x 1.55mm 14-Pin Optical MAX30105 provides a complete system solution to ease Module the design-in process of smoke detection applications Integrated Cover Glass for Optimal, Robust including fire alarms. Due to its extremely small size, the Performance MAX30105 can also be used as a smoke detection sen- Ultra-Low Power Operation sor for mobile and wearable devices. Programmable Sample Rate and LED Current for The MAX30105 operates on a single 1.8V power supply Power Savings and a separate 5.0V power supply for the internal LEDs. Ultra-Low Shutdown Current (0.7A, typ) 2 It communicates through a standard I C-compatible inter- Robust Motion Artifact Resilience face. The module can be shut down through software with High SNR zero standby current, allowing the power rails to remain powered at all times. -40C to +85C Operating Temperature Range Capable of Operating at High Ambient Levels Applications Excellent Ambient Rejection Capability Fire Alarms Smoke Detectors for Building Automation Smoke Detectors for Mobile Devices Smoke Detectors for Wearable Devices Ordering Information appears at end of data sheet. System Diagram HOST (AP) ELECTRICAL OPTICAL APPLICATIONS MAX30105 HARDWARE FRAMEWORK SMOKE/STEAM RED/IR/GREEN 2 DRIVER I C LED DRIVERS PARTICLES LED DIGITAL NOISE CANCELLATION ACRYLIC AMBIENT DATA 18-BIT PHOTO PACKAGING (COVER LIGHT FIFO CURRENT ADC DIODE GLASS) AMBIENT LIGHT CANCELLATION 19-8531 Rev 1 7/16MAX30105 High-Sensitivity Optical Sensor for Smoke Detection Applications Absolute Maximum Ratings V to GND .........................................................-0.3V to +2.2V Continuous Power Dissipation (T = +70C) DD A GND to PGND ......................................................-0.3V to +0.3V OESIP (derate 5.5mW/C above +70C) ....................440mW X DRV, V to PGND ......................................-0.3V to +6.0V Operating Temperature Range .......................... -40C to +85C LED+ All Other Pins to GND ..........................................-0.3V to +6.0V Junction Temperature ........................................................+90C Output Short-Circuit Current Duration .......................Continuous Soldering Temperature (reflow) ......................................+260C Continuous Input Current into Any Terminal .................... 20mA Storage Temperature Range ............................ -40C to +105C Package Thermal Characteristics (Note 1) OESIP Junction-to-Ambient Thermal Resistance ( ) ........180C/W Junction-to-Case Thermal Resistance ( ) .................150C/W JA JC Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Electrical Characteristics (V = 1.8V, V = 5.0V, T = -40C to +85C, unless otherwise noted. Typical values are at T = 25C.) (Note 2) DD LED+ A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY Guaranteed by RED and IR count Power-Supply Voltage V 1.7 1.8 2.0 V DD tolerance Guaranteed by PSRR of LED driver LED Supply Voltage V 3.1 3.3 5.25 V LED+ (R LED+ and IR LED+ only) Particle-sensing mode, PW = 215s, 600 1100 50sps Supply Current I A DD IR only mode, PW = 215S, 50sps 600 1100 Supply Current in Shutdown I T = +25C, MODE = 0x80 0.7 2.5 A SHDN A OPTICAL SENSOR CHARACTERISTICS ADC Resolution 18 bits RED PA = 0x0C, LED PW = 0x01, Red ADC Count REDC SPO2 SR = 0x05, 65536 Counts (Note 3) ADC RGE = 0x00, T = +25C A IR PA = 0x0C, LED PW = 0x01, IR ADC Count IRC SPO2 SR = 0x05 65536 Counts (Note 3) ADC RGE = 0x00, T = +25C A GRN PA = 0x24, LED PW = 0x11, Green ADC Count GRNC SPO2 SR = 0x05 65536 Counts (Note 3) ADC RGE = 0x00, T = +25C A White card loop-back, LED PW = SNR IR LED SNR 89 300 dB IR 0x11, ADC RGE = 0x10, T = 25C A White card loop-back, LED PW = SNR Red LED SNR 88.9 300 dB RED 0x11, ADC RGE = 0x10, T = 25C A White card loop-back, LED PW = SNR Green LED SNR 80.4 dB GREEN 0x11, ADC RGE = 0x01, T = 25C A Maxim Integrated 2 www.maximintegrated.com