Datasheet > IW3612-01

IW3612-01

更新时间： 2024-11-27 01:03:51

品牌	Logo	应用领域
DIALOG		/
页数	文件大小	规格书
18页	1810K
描述
AC/DC Digital Power Controller for Dimmable LED Drivers

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IW3612-01 数据手册

iW3612

AC/DC Digital Power Controller for

Dimmable LED Drivers

1.0 Features

● Isolated AC/DC ofﬂine 100V_AC/230V_ACLED driver

● Line frequency ranges from 45Hz to 66Hz

● Intelligent wall dimmer detection

2.0 Description

The iW3612 is a high performance AC/DC ofﬂine power

supply controller for dimmable LED luminaires, which uses

advanced digital control technology to detect the dimmer

type and phase. The dimmer conduction phase controls

the LED brightness. The LED brightness is modulated by

PWM-dimming. iW3612’s unique digital control technology

eliminates visible ﬂicker.

Leading-edge dimmer

Trailing-edge dimmer

No-dimmer detected

Unsupported dimmer

iW3612 can operate with all dimmer schemes including:

leading-edge dimmer, trailing-edge dimmer, as well as

other dimmer conﬁgurations such as R-type, R-C type or

R-L type. When a dimmer is not present, the controller can

automatically detect that there is no dimmer.

● Hybrid dimming scheme

● Wide dimming range from 1% up to 100%

● Optimized for PF > 0.7

iW3612 operates in quasi-resonant mode to provide

high efﬁciency. The iW3612 provides a number of key

built-in features. The iW3612 uses iWatt’s advanced primary-

● No visible ﬂicker

● Resonant control to achieve high efﬁciency, 85% without side sensing technology to achieve excellent line and load

dimmer

regulation without secondary feedback circuitry. In addition,

iW3612’s pulse-by-pulse waveform analysis technology

allows accurate LED current regulation. The iW3612

maintains stability over all operating conditions without the

need for loop compensation components. Therefore, the

iW3612 minimizes external component count, simpliﬁes EMI

design and lowers overall bill of materials cost.

● Temperature compensated LED current

● Small size design

Small size input bulk capacitor

Small size output capacitor

Small transformer

3.0 Applications

● Dimmable LED luminaires

● Primary-side sensing eliminates the need for

opto-isolator feedback and simpliﬁes design

● Tight LED current regulation ± 5%

● Fast start-up, typically 10µA start-up current

● Hot-plug LED module support

● Optimized for 3W - 25W output power

● Capable of higher output power with enhanced external

driver

● Multiple protection features:

LED open circuit protection

Single-fault protection

Over-current protection

LED short circuit protection

Current sense resistor short circuit protection

Over-temperature protection

Input over-voltage protection

● Up to 25W output power

Rev. 1.6

iW3612

Page 1

12 3 4 5 6 7...18

中文翻译

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与IW3612-01相关器件

型号	品牌	获取价格	描述	数据表
IW3612-03	DIALOG	获取价格	AC/DC Digital Power Controller for Dimmable LED Drivers
IW3612-05	DIALOG	获取价格	AC/DC Digital Power Controller for Dimmable LED Drivers
IW3614	DIALOG	获取价格	AC/DC Digital Power Controller
iW3614	RENESAS	获取价格	High PF, Off-Line LED Driver for 3W-15W Dimmable Solid State Lighting
IW3614-00	DIALOG	获取价格	AC/DC Digital Power Controller
IW3614-02	DIALOG	获取价格	AC/DC Digital Power Controller
iW3616	RENESAS	获取价格	Flickerless? High PF (>0.95), Off-Line LED Driver for 12W Dimmable Solid-State Lighting
iW3617	RENESAS	获取价格	Flickerless? High PF (>0.95), Off-Line LED Driver for 25W Dimmable Solid-State Lighting
IW3620	DIALOG	获取价格	Digital PWM Current-Mode Controller for AC/DC LED Driver
iW3620	RENESAS	获取价格	Digital Offline 40W PWM Controller with PrimAccurate? Primary-Side Control for LED Driving

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