Datasheet > LYT1604D-TL

LYT1604D-TL

更新时间： 2024-10-02 22:58:39

品牌	Logo	应用领域
帕沃英蒂格盛 - POWERINT		驱动
页数	文件大小	规格书
14页	1336K
描述
IC LED DRIVER OFFLINE 8SO

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LYT1604D-TL 数据手册

LYT1402-1604

LYTSwitch-1 Family

Single-Stage LED Driver IC with Combined PFC and

Constant Current Output for Buck Topology

Product Highlights

Single-Stage PFC + Accurate CC Output

• ±3% CC regulation in single line input voltage applications

• Power factor >0.9

• High efﬁciency >93%

LYTSwitch-1

• Robust 725 V MOSFET for increased line voltage surge performance

• Critical Conduction Mode (CrM) buck

• Low EMI

• Excellent line noise and transient rejection

Design Flexibility

• Supports high- and low-side buck topologies

• Wide input (90 VAC – 308 VAC) and output voltage range operation

• 3 family members cover power range for optimum device selection

• Requires no inductor bias winding

PI-ꢀꢁꢂꢃ-ꢂꢄꢂꢅꢆꢃ

Figure 1a. High-Side Buck − Typical Application Schematic.

Highest Reliability

• Lowest component count

• Comprehensive protection features with auto-restart

• Input and output overvoltage protection (OVP)

• Output short-circuit protection

• Open-loop protection

• Advanced thermal control

• Thermal foldback ensures that light continues to be delivered at

elevated temperatures

• Over-temperature shutdown provides protection during fault

conditions

LYTSwitch-1

Description

PI-ꢀꢁꢂꢃ-ꢂꢃꢂꢄꢅꢆ

The LYTSwitch™-1 family is ideal for single-stage, high PF, constant

current LED bulbs and tubes.

Figure 1b. Low-Side Buck − Typical Application Schematic.

The family incorporates a high-voltage MOSFET with a variable on-time

CrM controller. Extensive protection features with minimum external

components provide industry leading power density and functionality.

The devices can be used in high-side or low-side non-isolated buck

topology.

Output Power Table¹

Optimized for Smallest Components

Product³

The CrM operation results in low turn-on losses and reduces cost of

output diode (slower reverse recovery).

V_OUT≤ 30 V²

45 V ≤ V_OUT≤ 55 V²

LYT1402D

LYT1403D

LYT1404D

4.0 W

7.5 W

11 W

8.0 W

15 W

22 W

LYTSwitch-1 devices are suitable for applications from 2 W to 22 W.

See Table 1 for selection guidance.

Optimized for Lowest THD

Product³

V_OUT≤ 30 V²

V_OUT≥ 55 V²

LYT1602D

LYT1603D

LYT1604D

4.0 W

7.5 W

11 W

8.0 W

15 W

22 W

Figure 2. SO-8 D Package.

Table 1. Output Power Table (Buck Topology).

Notes:

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

heat sinking, measured at 50˚C ambient.

2. Output power scales linearly if VOUT falls in between the speciﬁed voltages.

3. Package: SO-8 (D Package).

www.power.com

July 2016

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

12 3 4 5 6 7...14

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