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Description:The integrates an ambient light (ALS) sensor, a proximity sensor (PS) and with
both I2C and Interrupt Pin outputs and with built-in IR LED. It is used in notebook PCs, smartphones,
MIDs (mobile internet devices), PNDs (portable navigation devices), e-books, tablet PCs, flat-panel
televisions, etc. for extending battery life and for better user visual experience. Ambient light sensor
optimizes the screen brightness to extend battery and to increase lame life. Proximity sensor (PS)
measures the IR reflection intensity which correlates to the distance of the object. Proximity sensor
enables the device controller to turn off the LCD back-light and the touch-screen sensor when the
device is held close to your ear, placed inside the pocket, purse, or bags. This function saves the
battery power and avoids unintended touch-screen trigger. Proximity sensor can also work as a device
wake-up sensor by sensing the user waving the hand in front of the device.
Features
ALS and PS with built-in IR LED in a Single Chip
Minimum Lux resolution: 0.001 Lux/Count
Large dynamic range: Ambient Light sensor measures Lux
Digital control and data output via I2C (100 KHz and 400 KHz) interface
Programmable analog gain and integration time for ALS and PS
60 Hz compensation by averaging : Programmable filtering of the ALS measurement
Interrupt pin supports active-low microprocessor Interrupt bus for PS event, programmed by the “high”
and “low” thresholds
Sensor works as a proximity (contact-less) switch in stand-alone mode without I2C bus wires to a master
Core VDD : 2.4 to 3.2 V
Active VDD Pin Current : 320uA
Average current at 3.0V, based on power-saving mode.
Ambient sensing mode : 30uA typical.
Proximity sensing mode : 30uA typical (w/o IR LED power)
Idle current : 1uA typical 以上是EPL2590的相关信息，欲了解更多详情，欢迎大家来电咨询
