SFH7770

Umgebungslicht und Näherungssensor Ambient Light and Proximity Sensor Lead (Pb) Free Product - RoHS Compliant SFH 7770 Not for design in automotive and industrial applications Wesentliche Merkmale Features • Näherungssensor - Detektionsbereich bis 100mm - Gestenerkennung - Ausgänge zum Betrieb von bis zu drei IR Emittern - Optimiert für 850nm Emitter - Umgebungslicht-Unterdrückung • Umgebungslichtsensor - 3lx - 65000lx - Gute Linearität - Spektrale Empfindlichkeit ähnlich dem menschlichen Auge • I2C interface - 100kHz / 400kHz und 3.4MHz Mode - verschiedene Messmoden programmierbar (STAND-BY, TRIGGERED, FREE-RUNNING) • < 5 μA Stromverbrauch im STAND-BY • Geringe Abmessungen, 2.8 x 2.8 x 0.9 mm3 • Proximity Sensor (PS) - Detection-range up to 100mm - Gesture recognition possible - Outputs to drive up to three IR emitters - Optimized for 850nm emitters - Suppression of ambient light Anwendungen Applications • • • • • • • • • Ambient Light Sensor (ALS) - 3lx - 65000lx - High linearity - Spectral sensitivity well matched to the human eye • I2C interface - 100kHz / 400kHz and 3.4MHz mode - Measurement modes programmable (STAND-BY, TRIGGERED, FREE-RUNNING) • Current consumption < 5μA in STAND-BY • Small package size, 2.8 x 2.8 x 0.9 mm3 Mobiltelefone PDA’s und Notebooks Kameras Consumer Produkte Typ Type SFH 7770 2011-09-16 Mobile phones PDAs and notebooks Cameras Consumer products Bestellnummer Ordering Code Q65110A9565 1 SFH 7770 Application diagram and basic informations VDD=2.8V VLED=4V VIO = 1.8V Vf1 LED 3 1 LED 2 2 LED 1 3 9 6 100nF 8 SFH 7770 5 10 nc 7 GND pull-up Vf2 pull-up Vf3 pull-up 10 µF SDA SCL INT MCU 4 GND_LED • The inductivity of the wire from the LED pin (1,2 or 3) to the cathode of the LED needs to be 2.0V can lead to minor timing violations to the I²C bus specification from NXP concerning the minimum/maximum hold time requirement. 2011-09-16 5 SFH 7770 Characteristics (Ta = 25°C) Parameter Symbol Value min. typ. Unit max. General Conditions for OFF mode 1) On-time (from OFF to STAND-BY) 1) Threshold level for STAND-BY mode 1) VDD,off 1.4 V ton 0.2 s VDD,on 2.0 V Transition time between modes ttrans (STAND-BY ...TRIGGERED ...FREE-RUNNING) 10 ms STAND-BY mode current consumption IDD,stby 5 μA OFF mode current consumption IDD,off 2 μA 1) Start-up sequence VDD 2.0V 1.4V upper threshold limit lower threshold llimit ton t on