Datasheet > AL1663S-13

AL1663S-13

更新时间： 2024-09-20 01:12:51

品牌	Logo	应用领域
美台 - DIODES		/
页数	文件大小	规格书
15页	317K
描述
UNIVERSAL FLYBACK AND BUCK-BOOST SINGLE STAGE DIMMABLE LED CONTROLLER

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AL1663S-13 数据手册

AL1663/AL1663R

UNIVERSAL FLYBACK AND BUCK-BOOST

SINGLE STAGE DIMMABLE LED CONTROLLER

Description

Pin Assignments

The AL1663/AL1663R is a high performance single stage Flyback

and Buck-boost controller, targeting dimmable LED lighting

application. It is a primary side regulation (PSR) controller which can

provide accurate constant current (CC) regulation without opto-

coupler and secondary control circuitry. It is operating at BCM mode

and switching at the valley which results in good EMI and efficiency.

With working in constant on time, the system achieves high PF and

low total harmonic distortion (THD) under universal input voltage.

(Top View)

APWM

PWMD

APWM

COMP

VCC

OUT

GND

COMP

GND

The AL1663/AL1663R can support multiple dimming modes. When a

0.3V to 2.4V DC signal is applied on APWM pin, the device will

operate in analog dimming mode. When a digital signal is applied on

APWM pin, the device works at PWM dimming mode. And for AL1663

When a digital signal is applied on PWMD pin and the APWM pin is

connected with a hundreds of nF capacitor, the device will work in

PWM-to-DC dimming mode.

AL1663

SO-8

AL1663R

SO-8

Applications



General LED Lighting Driver with Dimming Function

General Purpose Constant Current Source

LED Backlighting Driver

Smart LED Lighting

The AL1663/AL1663R features low start-up current and low operation

current. It integrates multiple protections including over voltage, short

circuit, over current and over temperature protection.

The AL1663/AL1663R is available in SO-8 package.

Features



Primary Side Regulation without Opto-coupler

Valley Switching for Low Switching Loss

Low Start-up Current

High PF and Low THD

High Efficiency

Tight LED Current Variation Range

Tight Output Open Voltage Variation Range

Support both PWM Dimming and Analog Dimming

Internal Protections

Under Voltage Lock Out (UVLO)

Output Over Voltage Protection (OVP)

Output Short Protection (OSP)

Over Current Protection (OCP)

Thermal Fold-back Protection (TFP)

Over Temperature Protection (OTP)



Low System Cost

Package: SO-8

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

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

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.

1 of 15

www.diodes.com

March 2017

AL1663/AL1663R

Document number: DS38466 Rev. 2 - 2

12 3 4 5 6 7...15

中文翻译

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