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[v1-32] 2016-Sep-27

AS3677 − General Description

Key Benefits & Features

The benefits and features of AS3677, Highly Integrated Lighting

Management Unit are listed below:

Figure 1:

Added Value Of Using AS3677

Applications

AS3677 is the ideal Lighting Management Unit for

• Mobile Phones

• Smartphones

• Portable Media Players (PMP)

• Personal Navigation Devices (PND)

Block Diagram

The functional blocks of this device are shown below:

Figure 2:

AS3677 Function Diagram

Benefits

Features

• Long operating time

• High-efficiency step up DC/DC converter

• 50mA charge pump

• Manage LED lighting in mobile phones

• 6 Current Sinks

• 3 HV current sinks (e.g. backlight)

• 3 LV current sinks (e.g. RGB funlight)

• Unload application processor for power

savings and allow long operating time

• Internal PWM generation

• LED pattern generator

• ALS, DLS inputs

• Easier system integration

• Support for automatic LED testing (open and shorted LEDs

can be identified)

AS3677

AS3677 数据表(PDF) 2 Page - ams AG

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