Datasheet > SN3188

SN3188

更新时间： 2024-09-17 02:50:31

品牌	Logo	应用领域
其他 - ETC		驱动器
页数	文件大小	规格书
10页	555K
描述
音频调制LED驱动器

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中文翻译

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SN3188 数据手册

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SN3188

Audio Modulate LED Drivers

Description

Features

PWM control RGB LEDs lighting effects

Programmable operating modes:

The SN3188 is a LED driver with an audio synchronization

mode that eliminates the need for real time software

processing to generate LED lighting effects.

Audio synchronization mode

LED Backlighting mode

Top-down scan mode

Outputs OUT0~OUT2 of the SN3188 can be operated in

PWM control mode with 256 steps control for RGB

intensity control.

PWM Control mode

V_DDRange: 3.0V to 5.5V

10 outputs each with 40mA capability at 0.34V

headroom.

Outputs OUT3~OUT9 can be operated in 4 modes: audio

synchronization mode, LED Backlighting mode, top-down

scan mode and a combination of audio synchronization and

top-down scan mode.

For anode-common LEDs

Package: QFN-20

When PWM Control mode is disabled, OUT0~OUT2

operates with OUT3~OUT9 together in the 4 modes

described above.

Application

The SN3188 includes ten individual color LED drivers that

provide up to 40mA of current drive for each LED output.

The output current is programmed using an external

resistor.

Cellular phones

MP3/MP4/CD/minidiskplayers

White LED Backlighting

Typical application

VDD

RGB LED

VDD

OUT0

0.1uF

OUT1

SN3188

1uF

0.1uF

Audio signal IN

OUT2

220nF

OUT3

OUT4

CLOCK

DATA

LATCH

SDB

Master

OUT5

OUT6

OUT7

OUT8

OUT9

C-FILT

R-EXT

100K 0.1uF

GND

Figure 1

Nov. 2008 ver1.11

SI-EN Technology

12 3 4 5 6 7...10

中文翻译

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