Datasheet > iW3662

iW3662

更新时间： 2024-11-27 14:57:51

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
6页	641K
描述
Low Voltage SSL LED Driver for MR16 Applications Offers Universal Transformer Compatibility and Superior Dimmer Compatibility

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

iW3662 数据手册

iW3662

Low Voltage (12V_AC) Dual-Mode Digital

Control Dimmable LED Driver

1 Description

The iW3662 advanced digital LED driver, designed for low voltage AC and DC input voltages, combines support for

both low voltage LEDs and high voltage Chip-On-Board (COB) LED modules at power levels up to 8W.

The iW3662 features two selectable operating modes to accommodate both low voltage LEDs and high voltage COB

LEDs in one part. The Boost-Buck mode provides a boost converter to step-up the input voltage to an intermediate

voltage, which a second buck regulator stage steps down to create a highly eﬃcient, constant current LED controller.

The Boost-Linear mode, designed to work with high voltage COB LEDs, steps up the input voltage to a higher voltage

than in the Boost-Buck mode, then, with the buck converter now disabled and reconﬁgured into a linear current

regulator, provides a highly accurate constant current sink to drive the LEDs.

The highly conﬁgurable digital control circuitry allows the end user to specify one part for multiple applications,

covering the bulk of low voltage LED replacement bulb applications. Using Dialog’s Flickerless™ technology

allows the iW3662 to operate without visible ﬂicker and operate with a broad range of input dimmer types (leading

edge, trailing edge and digital) while eﬀectively detecting and managing both electronic and magnetic transformers

automatically. When the iW3662 detects a magnetic transformer, an additional output drives an external switch

that can add extra input capacitance needed to ensure proper operation, easing the design of replacement bulbs

compatible with both transformer types.

The iW3662 also integrates an internal bleeder FET to add a dynamic load to the input to optimize electronic

transformer performance during low dimming ranges. Also, full protection features include over-temperature

protection derating, which lowers the output current drive to the LEDs when an over-temperature event occurs to

maintain light output even during a fault condition. These protection features provide robust and functional solutions

for low voltage LED replacement lighting.

2 Features

● Wide dimmer compatibility (leading edge, trailing

● 10 to 24V_DCinput voltage or 12V_ACinput voltage

● Output power up to 8W

edge, and digital)

● Deep dimming to 5% (depends on dimmers)

● Power factor > 0.7

● Supports magnetic or electronic transformers

● Two operational modes

● Tight LED current regulation (±5%) in both modes

Boost-Buck - low voltage LED arrays

Boost-Linear - high voltage COB LEDs

● Optimized dimming curve for maximizing dimmer and

electronic transformer compatibility

● Integrated boost controller and buck/linear current

● Over-temperature protection derating

● OVP, OCP, and open load protection

● 16-lead QFN (4mm x 4mm) package

regulator controller

● Flickerless™ technology for ﬂicker-free LED dimming

3 Applications

● V_ACor V_DCinput dimmable LED lighting

● Optimized for use with all transformers, including

electronic and magnetic

● MR16 bulbs, AR111 ﬁxtures/bulbs

06-Feb-2022

Product Summary

Rev. 1.5

1 of 6

www.renesas.com

12 3 4 5 6

中文翻译

下载PDF

与iW3662相关器件

型号	品牌	获取价格	描述	数据表
iW3671	RENESAS	获取价格	Power Factor Correction Flyback Controller for Front-End Power Conversion in Commercial SS
iW3677	RENESAS	获取价格	Power Factor Correction Flyback Controller for Front-End Power Conversion in Commercial SS
iW3688	RENESAS	获取价格	Advanced, Single-Stage, LED Driver Offers Best Dimming Performance and Dimmer Compatibilit
iW3689	RENESAS	获取价格	Advanced, Single-Stage, LED Driver Offers Best Dimming Performance and Dimmer Compatibilit
iW380	RENESAS	获取价格	Second-Stage 78V Buck LED Driver with Flicker-Free True DC Dimming Technology for Commerci
iW3827	RENESAS	获取价格	High Power Factor, Constant-Voltage Controller with Integrated 650V Power MOSFET
iW388	RENESAS	获取价格	40W Integrated MOSFET Second-Stage 65V Buck L
iW3989	RENESAS	获取价格	AC Direct LED Driver Enables High-Performance, Low Cost Phase-Cut Dimming
IW-3T	KOA	获取价格	Ferrite Bead, 1 Function(s),
IW-4/100MHZ	KOA	获取价格	Ferrite Bead, 1 Function(s),

与iW3662相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

45
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

34
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

62
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

59

产品中心

服务支持

精选活动

关于我们

帮助中心

iW3662

iW3662 数据手册

与iW3662相关器件

与iW3662相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

iW3662

iW3662 数据手册

与iW3662相关器件

与iW3662相关文章

您还可以找

您在本页遇到什么问题？