Datasheet > RT7315A

RT7315A

更新时间： 2024-09-22 21:21:31

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
10页	652K
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中文翻译

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技术参数
数据手册

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RT7315A 技术参数

Status：	Active	Vin (min) (V)：	4.8
Vin (max) (V)：	5.2	Vout (max) (V)：
LED Channels：	1	Topology：
SW Freq (typ) (kHz)：		Vcs (typ) (mV)：	100
Dimming Control：		Features：	OCP;OVP
Package Type：	SOT-26

RT7315A 数据手册

RT7315A

Flicker Filter for LED Lighting

General Description

Features

 Adaptive 100Hz/120Hz LED Current Ripple

The common off-line LED lighting system consists of

either isolated or non-isolated topologies with constant

current output to light up LED strings. The most popular

topology used in the market now is a single stage LED

driver features high power factor correction (PFC). By

using single stage approach, the system cost is cheap,

but the LED current also suffers from high current ripple

which can cause flicker due to the nature of high power

factor correction feature.

Regulator

 Suitable for Dimmable LED Lighting System

 Wide LED Voltage Range

 Multiple Protection Features

 LED Short Circuit Protection

 LED Open Circuit Protection

 LED Hot Plug Protection

 Over Temperature Protection

 RoHS Compliant and Halogen Free

The RT7315A as a second stage circuit is a flicker filter

designed to greatly reduce the current ripple commonly

seen at the output of either the isolated or non-isolated

single-stage constant current driver with PFC. The

control loop inside the RT7315A regulates the LED

current with minimized 100Hz/120Hz current ripple.

Applications

 LED Lighting Driver

Pin Configuration

(TOP VIEW)

The RT7315A also equips with several protection

features as follows. (1) Over temperature protection

(OTP) (2) LED short circuit protection (3) LED open

circuit protection (4) LED hot plug protection. The

RT7315A system circuit is simple and small. The BOM

cost is cheap and the required PCB space is tiny.

FB GATE CS

COMP GND VDD

Ordering Information

SOT-23-6

RT7315A

Package Type

E : SOT-23-6

Marking Information

5F= : Product Code

DNN : Date Code

Lead Plating System

G : Green (Halogen Free and Pb Free)

5F=DNN

Note :

Richtek products are :

 RoHS compliant and compatible with the current

requirements of IPC/JEDEC J-STD-020.

 Suitable for use in SnPb or Pb-free soldering

processes.

is a registered trademark of Richtek Technology Corporation.

DS7315A-01

March 2018

www.richtek.com

12 3 4 5 6 7...10

中文翻译

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