Datasheet > LYT4218

LYT4218

更新时间： 2024-11-25 00:57:15

品牌	Logo	应用领域
帕沃英蒂格盛 - POWERINT		/
页数	文件大小	规格书
20页	2714K
描述
LYTSwitch High Power LED Driver IC Family

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中文翻译

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LYT4218 数据手册

LYT4211-4218/4311-4318

™

LYTSwitch High Power LED Driver IC Family

Single-Stage Accurate Primary-Side Constant Current (CC) Controller with

PFC for Low-Line Applications, TRIAC Dimming and Non-Dimming Options

Product Highlights

•ꢀ Better than ±±5 CC regulation

•ꢀ TRIAC dimmable to less than ±5 output

•ꢀ Fast start-up

•ꢀ <2±0 ms at full brightness

•ꢀ <1s at 105 brightness

•ꢀ High power factor >0.9

•ꢀ Easily meets EN61000-3-2

•ꢀ Less than 105 THD in optimized designs

CONTROL

•ꢀ Up to 925 efﬁcient

•ꢀ 132 kHz switching frequency for small magnetics

High Performance, Combined Driver, Controller, Switch

The LYTSwitch family enables off-line LED drivers with high

power factor which easily meet international requirements for THD

Figure 1. Typical Schematic.

and harmonics. Output current is tightly regulated with better

than ±±5 CC tolerance¹. Efﬁciency of up to 925 is easily

achieved in typical applications.

Optimized for Different Applications and Power Levels

Part Number

LYT4211-LYT4218

LYT4311-LYT4318

Input Voltage Range

8±-132 VAC

TRIAC Dimmable

Supports a Wide Selection of TRIAC Dimmers

The LYTSwitch family provides excellent turn-on characteristics

for leading-edge and trailing-edge TRIAC dimming applications.

This results in drivers with a wide dimming range and fast

start-up, even when turning-on from a low conduction angle.

Large dimming ratio and low “pop-on” current.

8±-132 VAC

Yes

Output Power Table^1,2

Product⁶

Minimum Output Power³Maximum Output Power⁴

Low Solution Cost and Long Lifetime

LYTSwitch ICs are highly integrated and employ a primary-side

control technique that eliminates the optoisolator and reduces

component count. This allows the use of low-cost single-sided

printed circuit boards. Combining PFC and CC functions into a

single-stage also helps reduce cost and increase efﬁciency. The

132 kHz switching frequency permits the use of small, low-cost

magnetics.

LYT4x11E/L⁵

2.± W

3.8 W

4.± W

±.± W

6.8 W

8.0 W

18 W

12 W

1± W

18 W

22 W

2± W

3± W

±0 W

78 W

LYT4x12E/L

LYT4x13E/L

LYT4x14E/L

LYT4x15E/L

LYT4x16E/L

LYT4x17E/L

LYT4x18E/L

LED drivers using the LYTSwitch family do not use primary-side

aluminum electrolytic bulk capacitors. This means greatly

extended driver lifetime, especially in bulb and other high

temperature applications.

Table 1. Output Power Table.

Notes:

1. Performance for typical design. See Applications section.

2. Continuous power in an open-frame design with adequate heat sinking; device

local ambient of 70 °C. Power level calculated assuming a typical LED string

voltage and efﬁciency >805.

3. Minimum output power requires C_BP= 47 µF.

4. Maximum output power requires C_BP= 4.7 µF.

±. LYT4311 C_BP= 47 µF, LYT4211 C_BP= 4.7 µF.

6. Package: eSIP-7C, eSIP-7F (see Figure 2).

eSIP-7C (E Package)

Figure 2. Package Options.

eSIP-7F (L Package)

www.powerint.com

February 2013

12 3 4 5 6 7...20

中文翻译

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与LYT4218相关器件

型号	品牌	获取价格	描述	数据表
LYT4218E	POWERINT	获取价格	IC LED DRIVER OFFLINE 9A ESIP-7C
LYT4218E2	POWERINT	获取价格	IC LED DRIVER OFFLINE 9A ESIP-7C
LYT4218L	POWERINT	获取价格	IC LED DRIVER OFFLINE 9A ESIP-7F
LYT4221E	POWERINT	获取价格	IC LED DRIVER OFFL 1.37A ESIP-7C
LYT4221E3	POWERINT	获取价格	IC LED DRIVER OFFL 1.37A ESIP-7C
LYT4222E	POWERINT	获取价格	IC LED DRIVER OFFL 2.08A ESIP-7C
LYT4222E3	POWERINT	获取价格	IC LED DRIVER OFFL 2.08A ESIP-7C
LYT4223E	POWERINT	获取价格	IC LED DRIVER OFFL 2.72A ESIP-7C
LYT4223E3	POWERINT	获取价格	IC LED DRIVER OFFL 2.72A ESIP-7C
LYT4224E	POWERINT	获取价格	IC LED DRIVER OFFL 4.08A ESIP-7C

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