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AS3677 Datasheet(PDF) 1 Page - ams AG |
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AS3677 Datasheet(HTML) 1 Page - ams AG |
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1 / 106 page  ams Datasheet Page 1 [v1-32] 2016-Sep-27 Document Feedback AS3677 Highly Integrated Lighting Management Unit The AS3677 is a highly-integrated CMOS power and lighting management unit for mobile telephones, and other Li+ battery powered devices. The AS3677 incorporates one step up DC/DC converter for white backlight LEDs, one analog-to-digital converter, RGB driver, six current sinks, LED in-circuit function test, an I²C serial interface, and control logic all onto a single device. It includes a charge pump to control e.g. an RGB together with an internal pattern generator for smooth blinking effects. It supports ambient light sensor (ALS) processing and two Dynamic Luminance Scaling (DLS) inputs (also called Dynamic Backlight Control - DBC). Internally the PWM signal for DLS can be used to change the analog current through the current sources (two channels can be used simultaneously). This avoids noise in the system as the changes of backlight control happen continuously without using the PWM modulation scheme. Output voltages and output currents are fully programmable. The AS3677 is part of the ams AS3675, AS3687/87XM, AS3688 and AS3689 lighting management unit family. It is software compatible to AS3675, AS3676, AS3687/87XM, AS3688 and AS3689. The AS3677 is available in a space-saving WL-CSP package measuring only 2.2 ×2.2×0.6mm and operates over the -30°C to 85°C temperature range. Ordering Information and Content Guide appear at end of datasheet. General Description |
Similar Part No. - AS3677_17 |
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Similar Description - AS3677_17 |
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