Datasheet > AL9902

AL9902

更新时间： 2024-09-27 01:12:07

品牌	Logo	应用领域
美台 - DIODES		驱动高压
页数	文件大小	规格书
18页	729K
描述
LINEAR AND PWM DIMMING HIGH VOLTAGE LED DRIVER

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中文翻译

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数据手册

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AL9902 数据手册

AL9902

LINEAR AND PWM DIMMING HIGH VOLTAGE LED DRIVER

Description

Pin Assignments

The AL9902 high-voltage PWM LED driver provides an efficient

solution for offline high-brightness LED lamps from rectified line

voltages ranging from 85V_ACup to 277V_AC. The AL9902 has an

internal MOSFET that allows switching frequencies up to 300kHz,

with the switching frequency determined by an external single

resistor. The AL9902 topology creates a constant current through the

LEDs providing constant light output. The output current is

programmed by one external resistor.

SW NC

GND

VIN

12 11 10

EP1

EP2

The LED brightness can be varied by both linear and PWM dimming

using the AL9902’s LD and PWM pins respectively. The PWM input

operates with duty ratio of 0-100% and frequency of up to several

kHz.

NC PWM VDD

LD Rosc

U-DFN6040-12

NC GND CS

11 10

NC VIN

The AL9902 is available in the thermally enhanced U-DFN6040-12

and SO-16 packages.

16 15 14

13 12

Features



>90% Efficiency

Universal Rectified 85 to 277V_ACInput Range

Internal MOSFET Up to 650V, 2A

PWM

High Switching Frequency Up to 300kHz

Internal Voltage Regulator Removes Start-Up Resistor

7.5V Regulated Output

SW NC

VDD LD Rosc

SO-16

Tighter Current Sense Tolerance Better Than ±5%

LED Brightness Control with Linear and PWM Dimming

Internal Over-Temperature Protection (OTP)

U-DFN6040-12 and SO-16 Packages

Applications



LED Offline Lamps

High Voltage DC-DC LED Driver

Totally Lead-Free & Fully RoHS compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)

Signage and Decorative LED Lighting

Back Lighting of Flat Panel Displays

General Purpose Constant Current Source

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

Typical Applications Circuit

AC+

HD06

602V

AC-

VIN

Rosc

VDD

AL9902

PWM

Rosc

GND

Rsense

1 of 18

www.diodes.com

July 2015

AL9902

Document number: DS37878 Rev. 1 - 2

12 3 4 5 6 7...18

中文翻译

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与AL9902相关器件

型号	品牌	获取价格	描述	数据表
AL9902FDF-13	DIODES	获取价格	LINEAR AND PWM DIMMING HIGH VOLTAGE LED DRIVER
AL9902S16-13	DIODES	获取价格	LINEAR AND PWM DIMMING HIGH VOLTAGE LED DRIVER
AL9910	DIODES	获取价格	UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER
AL9910 (Chinese Version)	DIODES	获取价格
AL9910_1106	DIODES	获取价格	UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER
AL9910_12	DIODES	获取价格	UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER
AL9910-5	DIODES	获取价格	UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER
AL9910-5 (Chinese Version)	DIODES	获取价格
AL9910-5S-13	DIODES	获取价格	UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER
AL9910-5SP-13	DIODES	获取价格	UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER

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