Datasheet > LYT3318D-TL

LYT3318D-TL

更新时间： 2024-02-14 01:18:44

品牌	Logo	应用领域
帕沃英蒂格盛 - POWERINT		/
页数	文件大小	规格书
18页	1833K
描述
IC LED DVR DIM 20.4W 1-ST 16SOIC

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数据手册

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LYT3318D-TL 数据手册

LYT3314-3328

LYTSwitch-3 Family

Single-Stage LED Driver IC with Combined PFC and

Constant Current Output for Outstanding TRIAC Dimming

in Isolated and Non-Isolated Topologies

Product Highlights

Combined Single-Stage PFC + Accurate CC Output

• Less than ±3% CC regulation over line and load

• Power Factor >0.9

• Ensures monotonic VA reduction with TRIAC phase angle

• Low THD, 15% typical for dimmable bulbs, as low as 7% in

LYTSwitch-3

optimized designs

CONTROL

Advanced Integrated TRIAC Dimmer Detection

• Detects leading-edge and trailing-edge TRIAC dimmers

• High-efﬁciency mode when no dimmer is present

• Selectable dimming proﬁle increases design ﬂexibility

• Fast turn-on (<500 ms)

PI-ꢀꢁꢂꢃa-ꢄꢅꢄꢆꢇꢈ ꢉLꢊꢊ

• Low pop-on and dead-travel

• Active bleeder drive for widest dimmer compatibility

Figure 1. Simpliﬁed Schematic (Buck).

Design Flexibility

• Supports buck, buck-boost, tapped buck-boost, boost, isolated and

non-isolated ﬂyback

• Up to 20 W output

Output Power Table

Product²

Output Power¹

Highest Reliability

• No electrolytic bulk capacitors or optoisolators for increased lifetime

• Comprehensive protection features

• Input and output overvoltage

• Output short-circuit and open-loop protection

• Advanced thermal control

• Thermal foldback ensures that light continues to be delivered at

elevated temperatures

• End-stop shutdown provides protection during fault conditions

85-132 VAC or 185-265 VAC

LYT33x4D³

LYT33x5D

LYT33x6D

LYT33x8D

5.7 W

8.8 W

12.6 W

20.4 W

Table 1. Output Power Table (Buck Topology).

Description

Notes:

1. Maximum practical continuous power in an open frame design with adequate

heat sinking, measured at 50˚C ambient (see Key Applications Considerations

for more information).

The LYTSwitch™-3 family is ideal for single-stage power factor

corrected constant current LED bulbs and downlighters.

2. Package: D: SO-16B.

Each device incorporates a high-voltage power MOSFET and discon-

tinuous mode, variable frequency variable on-time controller. The

controller also provides cycle-by-cycle current limit, output OVP, line

overvoltage, comprehensive protection features, plus advanced

thermal management circuitry.

3. ”x” digit describes V_DSON(MAX)of the integrated switching MOSFET,

650 V = 1, 725 V = 2.

All LYTSwitch-3 ICs have a built-in TRIAC detector that discriminates

between leading-edge and trailing-edge dimmers. This capability

together with load monitoring circuitry regulates bleeder current during

each switching cycle. The controller disables the bleeder circuit

completely if no dimmer is detected, signiﬁcantly increasing efﬁciency.

Figure 2. SO-16B (D Package).

The combination of a low-side switching topology, cooling via electroni-

cally quiet SOURCE pins and frequency jitter ensure extremely low EMI.

This reduces the size of the input ﬁlter components – greatly reducing

audible noise during dimming.

The part numbers shown in Table 1 describe 4 different power levels and

two MOSFET voltage options to cost-optimize designs while EcoSmart^TM

switching technology insures maximum efﬁciency for each device size

and load condition.

www.power.com

April 2016

This Product is Covered by Patents and/or Pending Patent Applications.

12 3 4 5 6 7...18

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与LYT3318D-TL相关器件

型号	品牌	获取价格	描述	数据表
LYT3324D	POWERINT	获取价格	IC LED DVR DIM 5.7W 1-ST 16SOIC
LYT3324D-TL	POWERINT	获取价格	IC LED DVR DIM 5.7W 1-ST 16SOIC
LYT3325D	POWERINT	获取价格	IC LED DVR DIM 8.8W 1-ST 16SOIC
LYT3325D-TL	POWERINT	获取价格	IC LED DVR DIM 8.8W 1-ST 16SOIC
LYT3326D	POWERINT	获取价格	IC LED DVR DIM 12.6W 1-ST 16SOIC
LYT3326D-TL	POWERINT	获取价格	IC LED DVR DIM 12.6W 1-ST 16SOIC
LYT3328D	POWERINT	获取价格	IC LED DVR DIM 20.4W 1-ST 16SOIC
LYT3328D-TL	POWERINT	获取价格	IC LED DVR DIM 20.4W 1-ST 16SOIC
LYT4211	POWERINT	获取价格	LYTSwitch High Power LED Driver IC Family
LYT4211L	POWERINT	获取价格	IC LED DRIVER OFFL 1.37A ESIP-7F

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