Datasheet > DEI1090-MES-G

DEI1090-MES-G

更新时间： 2024-01-29 20:33:55

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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技术参数
数据手册

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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：	EAR99	HTS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

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

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

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.

VIN

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

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.

POWER INPUT: Ground.

GND

ISET

LED4

ANALOG INPUT: External resistor input to set LED current.

ANALOG OUTPUT: PWM output drives multiple 1090 slave

devices for synchronous operation.

PWM

LOGIC INPUT: HIGH enables operation. LOW sets all LED

outputs OFF and sets standby state.

ENABLE

Page 1 of 13

DS-MW-01090 Rev J

10/30/2019

12 3 4 5 6 7...13

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