AP1521W

更新时间： 2024-02-26 13:18:48

品牌	Logo	应用领域
易亨 - ANACHIP		转换器开关光电二极管升压转换器
页数	文件大小	规格书
8页	201K
描述
White LED Step-Up Converter

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中文翻译

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技术参数
数据手册

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AP1521W 技术参数

生命周期：	Transferred	零件包装代码：	SOT-23
包装说明：	LSSOP,	针数：	5
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.23
Is Samacsys：	N	模拟集成电路 - 其他类型：	SWITCHING REGULATOR
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	10 V
最小输入电压：	2.5 V	标称输入电压：	3 V
JESD-30 代码：	R-PDSO-G5	长度：	2.85 mm
功能数量：	1	端子数量：	5
最高工作温度：	85 °C	最低工作温度：	-40 °C
最大输出电流：	0.32 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	LSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	认证状态：	Not Qualified
座面最大高度：	1.35 mm	表面贴装：	YES
切换器配置：	BOOST	最大切换频率：	1250 kHz
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子节距：	0.95 mm	端子位置：	DUAL
宽度：	1.6 mm	Base Number Matches：	1

AP1521W 数据手册

AP1521

White LED Step-Up Converter

Features

General Description

- Inherently Matched LED Current

- Drives Up to Four LEDs from a 3.2V Supply

- Drives Up to Six LEDs from a 5V Supply

- High Efficiency: 84% Typical

The AP1521 is a step-up DC/DC converter

specifically designed to drive white LEDs with a

constant current. The device can drive two, three or

four LEDs in series from a Li-Ion cell. Series

connection of the LEDs provides identical LED

currents resulting in uniform brightness and

eliminates the need for ballast resistors. The

AP1521 switches at 1MHz that allows the use of

tiny external components. A low 300mV feedback

voltage minimizes power loss in the current setting

resistor for better efficiency.

- Fast 1MHz Switching Frequency

- 36V Rugged Bipolar Switch

- Low Profile SOT23-5 Pb-Free Packaging

Applications

- Cellular Phones

- PDAs, Hand-held Computers

- Digital Cameras

- MP3 Players

- GPS Receivers

Pin Assignments

Pin Descriptions

Name

Description

Switch Pin. Connect inductor/diode

here. Minimize trace area at this pin

to reduce EMI.

Top View

V_SS

GND pin

V_IN

SHDN

Feedback Pin. Reference voltage is

310mV. Connect cathode of lowest

LED and resistor here. Calculate

resistor value according to the

formula： R^FB= 310mV / ILED

Shutdown Pin. Tie to 1.5V or higher

to enable the device；0.4V or less to

disable the device.

SW V_SSFB

SHDN

V_IN

SOT23-5L

Input Supply Pin. Must be locally

bypassed.

Ordering Information

AP1521

X X

Package

Packing

Blank : Tube

W: SOT23-5L

: Taping

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev. 0.1 Apr. 27, 2004

1/8

12 3 4 5 6 7 8

中文翻译

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与AP1521W相关器件

型号	品牌	获取价格	描述	数据表
AP1521WA	ANACHIP	获取价格	White LED Step-Up Converter
AP1522	ANACHIP	获取价格	Step-Up DC/DC Converter
AP1522W	ANACHIP	获取价格	Step-Up DC/DC Converter
AP1522WA	ANACHIP	获取价格	Step-Up DC/DC Converter
AP1522WL-7	DIODES	获取价格	Switching Regulator, 0.36A, 1250kHz Switching Freq-Max, PDSO5, SOT-25, 5 PIN
AP1530	DIODES	获取价格	PWM CONTROL 3A STEP-DOWN CONVERTER
AP1530_09	DIODES	获取价格	18V 3A 300KHz BUCK CONVERTER
AP1530S	DIODES	获取价格	PWM CONTROL 3A STEP-DOWN CONVERTER
AP1530SG-13	DIODES	获取价格	18V 3A 300KHz BUCK CONVERTER
AP1530SL-13	DIODES	获取价格	PWM CONTROL 3A STEP-DOWN CONVERTER

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