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DEI1090-MES-G

更新时间： 2024-11-06 02:52:03
品牌 Logo 应用领域
DEIAZ 驱动接口集成电路
页数 文件大小 规格书
13页 321K
描述
LED Driver with Square-Law Dimming Control

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中文翻译

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DEI1090-MES-G 技术参数

是否Rohs认证： 符合生命周期：Active
包装说明：,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.71接口集成电路类型：LED DISPLAY DRIVER
峰值回流温度（摄氏度）：NOT SPECIFIED处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

DEI1090-MES-G 数据手册

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Device  
Engineering  
Incorporated  
DEI1090  
LED Driver with Square-Law  
Dimming Control  
6031 South Maple Ave.  
Tempe, AZ 85283  
Phone: (480) 303-0822  
Fax: (480) 303-0824  
E-mail: admin@deiaz.com  
FEATURES  
·
·
·
·
·
·
·
Emulates incandescent lamp ‘Square Law’ luminance curve.  
LED dimming controlled by Pulse Width Modulation ranging from 50HZ to 200HZ.  
Maximum LED current adjustable from 10mA to 20mA.  
200:1 Dimming Range at 50Hz. 40:1 Dimming Range at 200Hz  
Drives 8 LED outputs with matched current drive.  
Drivers can be cascaded to synchronously drive additional LEDs.  
Package Options  
o
o
Plastic 16 lead SOIC  
20L QFN 5 X 5  
APPLICATIONS  
·
·
·
LED replacement for dimmable incandescent lamps.  
Avionics instrument and panel lighting.  
Balanced display and keyboard backlighting.  
GENERAL DESCRIPTION  
DEI1090 device is a 16 pin bipolar integrated circuit designed to drive eight LEDs and provide Pulse Width Modulated (PWM)  
dimming control according to the luminance curve of incandescent lamps. All eight LEDx pins are driven with an average current  
proportional to the square of the input dimming voltage to control the LED brightness. Drivers can be cascaded to synchronously  
drive additional LED groups. The dimming control input may be a DC or AC voltage.  
Table 1 – SOIC Terminal Description  
PIN  
1
NAME  
VDD  
DESCRIPTION  
POWER INPUT: +4.5 to +16.5 VDC  
ANALOG INPUT: 0 to 2.5V AC or DC analog input for  
brightness control.  
2
3
VIN  
1
16  
VDD  
VIN  
ENABLE  
PWM  
LED8  
LED7  
LED6  
LED5  
ISET  
ANALOG IO: Optional external filter resistor and capacitor  
used when 400HZ AC control signals are supported. This pin  
must be connected to ground through a resistor even in DC  
FILT  
FILT  
LED1  
LED2  
LED3  
FSET  
GND  
applications.  
LED DRIVE OUTPUT: LED cathode connection. LED  
4-6,9,  
11-14  
LED1-8  
FSET  
average current is proportional to the square of VIN.  
ANALOG INPUT: External capacitor input to set PWM  
frequency.  
7
POWER INPUT: Ground.  
8
GND  
ISET  
LED4  
ANALOG INPUT: External resistor input to set LED current.  
10  
ANALOG OUTPUT: PWM output drives multiple 1090 slave  
devices for synchronous operation.  
15  
16  
PWM  
LOGIC INPUT: HIGH enables operation. LOW sets all LED  
outputs OFF and sets standby state.  
ENABLE  
© 2019 Device Engineering Incorporated  
Page 1 of 13  
DS-MW-01090 Rev J  
10/30/2019  
1234567...13

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