Datasheet > MIC2289-15YML-TX

MIC2289-15YML-TX

更新时间： 2024-11-24 15:42:51

品牌	Logo	应用领域
美国微芯 - MICROCHIP		驱动接口集成电路
页数	文件大小	规格书
22页	1266K
描述
LED Driver

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中文翻译

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技术参数
数据手册

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MIC2289-15YML-TX 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	compliant	风险等级：	5.56
接口集成电路类型：	LED DISPLAY DRIVER	Base Number Matches：	1

MIC2289-15YML-TX 数据手册

MIC2289

White LED Driver Internal Schottky Diode and OVP

Features

General Description

• 2.5V to 10V Input Voltage Range

• Output Voltage up to 34V

• Internal Schottky Diode

The MIC2289 is a PWM (pulse width modulated),

boost-switching regulator that is optimized for constant

current white LED driver applications. The MIC2289

features an internal Schottky diode and three levels of

output overvoltage protection providing a small size

and efficient DC/DC solution that requires only four

external components.

• 15V, 24V, 34V Output OVP Options

• 1.2 MHz PWM Operation

• Over 500 mA Switch Current

• 95 mV Feedback Voltage

• <1% Line and Load Regulation

• <1 μA Shutdown Current

• Overtemperature Protection

• UVLO

To optimize efficiency, the feedback voltage is set to

only 95 mV. This reduces power dissipation in the

current setting resistor and allows the lowest total

output voltage, hence minimizes current draw from the

battery.

The MIC2289 implements a constant frequency

1.2 MHz PWM control scheme. The high frequency,

PWM operation saves board space by reducing

external component sizes. The added beneﬁt of the

constant frequency PWM scheme in comparison to

variable frequency is much lower noise and input ripple

injected to the input power source.

• 6-Pin Thin SOT-23 and 2 mm x 2 mm DFN-8

Package Options

• –40°C to +125°C Junction Temperature Range

Applications

• White LED Driver for Backlighting:

- Cell Phones

The MIC2289 clamps the output voltage in case of

open LED conditions, protecting itself and the output

capacitor. The MIC2289 is available with three output

OVP options of 15V, 24V, and 34V. The different OVP

options allows the use of the smallest possible output

capacitor with the appropriate voltage rating for a given

application.

- PDAs

- GPS Systems

- Digital Cameras

- MP3 Players

- IP Phones

• LED Flashlights

• Constant Current Power Supplies

The MIC2289 is available in low profile 6-pin Thin

SOT-23 and 8-pin 2 mm × 2 mm DFN package options.

The MIC2289 has a junction temperature range of

–40°C to +125°C.

Package Types

MIC2289

DFN-8 (ML)

(Top View)

MIC2289

Thin SOT23-6 (D6)

(Top View)

GND

OUT

VIN

PGND

AGND

EN VIN OUT

 2019 Microchip Technology Inc.

DS20006207A-page 1

12 3 4 5 6 7...22

中文翻译

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与MIC2289-15YML-TX相关器件

型号	品牌	获取价格	描述	数据表
MIC2289-24BML	MICREL	获取价格	2mm 】 2mm White LED Driver with Internal Scho
MIC2289-24BMLTR	MICROCHIP	获取价格	LED Driver, 3-Segment, 2 X 2 MM, MLF-8
MIC2289-24YD6	MICREL	获取价格	White LED Driver Internal Schottky Diode and OVP
MIC2289-24YD6-TR	MICROCHIP	获取价格	LED DISPLAY DRIVER
MIC2289-24YD6-TX	MICROCHIP	获取价格	LED Driver
MIC2289-24YML	MICREL	获取价格	2mm 】 2mm White LED Driver with Internal Scho
MIC2289-24YML	MICROCHIP	获取价格	LED DISPLAY DRIVER, DSO8
MIC2289-24YMLTR	MICROCHIP	获取价格	LED DISPLAY DRIVER, DSO8, 2 X 2 MM, LEAD FREE, MLF-8
MIC2289-24YML-TR	MICROCHIP	获取价格	LED DISPLAY DRIVER, DSO8
MIC2289-34BML	MICREL	获取价格	2mm 】 2mm White LED Driver with Internal Scho

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