Datasheet > NU502

NU502

更新时间： 2024-11-15 11:46:35

品牌	Logo	应用领域
其他 - ETC		显示器调节器二极管齐纳二极管闪光灯
页数	文件大小	规格书
10页	815K
描述
80mA Single channel LED Driver 高达80mA的单通道恒定电流调节器 1.6V ~ 18V的宽电源电压范围支持自我权力在照明应用结构一个外部电阻电流设置最小化0.6V电压差（80mA）快速的电流上升和下降在建的偏见和高电压15V的齐纳二极管保护小于4%±芯片电流偏差小于±0.5% / V负载（或线）的调节 125°C ~ 160°C结温电流斜坡下降热保护 40℃~ 85℃环境工作温度级联可以更高的电压降的应用应用通用LED照明 建筑装饰照明 LED手电筒或闪光灯 RGB照明 RGB显示器/指示器

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中文翻译

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数据手册

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NU502 数据手册

2013/04/10

Small / Medium Power Lighting LED Driver NU502

80mA Single channel LED Driver

信

132-4982-7170

Features

Applications



Up to 80mA single channel constant current regulator

1.6V ~ 18V wide supply voltage range supports self power

structure in lighting application

Current set by an external resistor

Minimized 0.6V (80mA) dropout voltage

Fast current rising and falling



General LED lighting

Decoration lighting for architecture

LED torch / flash light

RGB lighting



RGB display / indicator

Built in 15V Zener diode for bias and high voltage

protection

Package Type



Less than ±4% Chip to Chip current skew



SOT 23-6

Less than ±0.5%/V load (or line) regulation

125°C ~160°C junction temperature current ramp down

thermal protect



-40℃ ~ 85℃ ambient operating temperature

Cascade-able for higher voltage drop applications

Product Description

NU502 is

a small/medium power linear current

regulation component that can be easily used in various LED

lighting applications. It is equipped the excellent feature of

good load/line regulation capability, minimized chip current

skew, stable output current in high power or load voltage

fluctuating environment that can be used in wide area of LED

lighting source to maintain the uniformity of light intensity.

Terminal Description

Except for the power supply function, the VDD pin of

NU502 is output enable (OE), and can be used in digital PWM

controlled circuits for more precise current adjustment in gray

level applications.

Pin name

Function

V_Z

Zener Diode

Ground

GND

R_EXT

OPT

Mode

V_DD

A special cascade mode is also provided by NU502. In

high power supply voltage and low LED load dropout voltage

application, two or more NU502 can be connected in series to

share redundant high voltage. With the exclusive voltage

sharing technology of NUMEN tech., the extra redundant

voltage that exceeds the preset threshold voltage (Viboost) can

be shared by next NU502.

Current setting Resistor

Current sink

Cascade / Normal mode selection

Power supply

With the feature of wide power supply range design and

ultra low I_DDconsumption, the NU502 supports the self

powered structure in LED lighting applications. In this

structure, the NU502 no need to be provided a dedicate power

circuit even the system power voltage is much higher than the

maximum operation voltage of NU502. The V_DDpower can be

gotten from the proper position in LED series of system.

- 1 -

Ver.01

FAX: +886-3-550-2805

Please visit http://www.numen-tech.com for more patent information.

3F., No. 96, Sec. 1, Jiafong 6^thRoad, Jhubei City, Hsinchu County 302, Taiwan.

TEL: +886-3-658-9936

12 3 4 5 6 7...10

中文翻译

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