Datasheet > ASP3730

ASP3730

更新时间： 2024-11-18 17:15:39

品牌	Logo	应用领域
安森德 - ASDsemi		/
页数	文件大小	规格书
13页	1866K
描述
SOT23-6

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数据手册

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ASP3730 数据手册

ASP3730

High Performance, Constant Current LED Driver

with PWM Brightness Control

Features

•

2.5V to 5.5V Input Voltage

•

Internal Compensation

Drivers up to 8 Series WLEDs

Low 250mV Feedback Voltage

1.2MHz Fixed Switching Frequency

Internal 1.6A Switch Current Limit

Thermal Shutdown

Over Voltage Protection

Dimming with wide Frequency Range

Available in SOT23-6 package

Applications

•

PDA LED back light

•

Camera Flash White LED

Digital still cameras

General Description

The ASP3730 is a step-up converter designed for driving up to 8 Series white LED's from a single cell Lithium

Ion battery. The device features integrated overvoltage protection and Its low 250mV feedback voltage reduces

power loss and improves efficiency.

Optimized operation frequency can meet the requirement of small LC filters value and low operation current with

high efficiency. Internal soft start function can reduce the inrush current. SOT23-6 package type provides the best

solution for PCB space saving and total BOM cost.

Typical Application Circuit

L₁

V_IN

V_OUT

n·WLED

VIN

C_OUT

OVP

Dimming

C_IN

CTRL

GND

R₁

Typical Application Circuit

行业领先的功率器件及模拟芯片设计公司

Ascend Sem ico nd uto r Co ., Ltd .

www.ascend sem i.co m

0755-86970486

NOV 2021 Version 1.0

1/13

12 3 4 5 6 7...13

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