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MIC3231YTSE

更新时间： 2024-11-20 07:03:19

品牌	Logo	应用领域
麦瑞 - MICREL		开关光电二极管驱动控制器
页数	文件大小	规格书
20页	604K
描述
Constant Current Boost Controller for Driving High Power LEDs

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中文翻译

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MIC3231YTSE 数据手册

MIC3230/1/2

Constant Current Boost Controller for

Driving High Power LEDs

Bringing the Power to Light™

General Description

Features

The MIC3230/1/2 are constant current boost switching

controllers specifically designed to power one or more

strings of high power LEDs. The MIC3230/1/2 have an

input voltage range from 6V to 45V and are ideal for a

variety of solid state lighting applications.

• 6V to 45V input supply range

• Capable of driving up to 70W

• Ultra low EMI via dithering on the MIC3231

• Programmable LED drive current

• Feedback voltage = 250mV ±3%

The MIC3230/1/2 utilizes an external power device which

offers a cost conscious solution for high power LED

applications. The powerful drive circuitry can deliver up to

70W to the LED system. Power consumption has been

minimized through the implementation of a 250mV

feedback voltage reference providing an accuracy of ±3%.

The MIC323x family is dimmable via a pulse width

modulated (PWM) input signal and also features an enable

pin for low power shutdown.

• Programmable switching frequency (MIC3230/1) or

400kHz fixed frequency operation (MIC3232)

• PWM Dimming and separate enable shutdown

• Frequency synchronization with other MIC3230s

• Protection features:

Over Voltage Protection (OVP)

Over temperature protection

Under-voltage Lock-out (UVLO)

• Packages:

Multiple MIC3230 ICs can be synchronized to a common

operating frequency. The clocks of these synchronized

devices can be used together in order to help reduce noise

and errors in a system.

N/C

VIN

16 N/C

VIN

12 VDD

11 DRV

10 PGND

15 VDD

14 DRV

13 PGND

12 OVP

11 IS

VIN

10 VDD

An external resistor sets the adjustable switching

frequency of the MIC3230/1. The switching frequency can

be between 100kHz and 1MHz. Setting the switching

frequency provides the mechanism by which a design can

be optimized for efficiency (performance) and size of the

external components (cost). The MIC323x family of LED

drivers also offer the following protection features: Over

voltage protection (OVP), thermal shutdown and under-

voltage lock-out (UVLO).

DRV

PGND

OVP

PWMD

COMP

IADJ

PWMD

COMP

IADJ

PWMD

COMP

IADJ

OVP

EPAD

SYNC/NC

10 SYNC/NC

EPAD

AGND

9 N/C

MIC3232

MSOP-10

MIC3230/1

MLF-12

MIC3230/1

TSSOP-16

• –40°C to +125°C junction temperature range

The MIC3231 offers a dither feature to assist in the

reduction of EMI. This is particularly useful in sensitive

EMI applications, and provides for a reduction or

emissions by approximately 10dB.

Applications

• Street Lighting

• Solid State Lighting

• General Illumination

• Architectural Lighting

• Constant Current Power Supplies

The MIC3232 is a 400kHz fixed frequency device offered

in a small MSOP-10 package. The MIC3230/1 are offered

in both the EPAD TSSOP-16 package and the

3mm × 3mm MLF^®-12 package.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

_________________________________________________________________________________________________

Bringing the Power to Light is a trademark of Micrel, Inc.

MicroLead Frame and MLF are registered trademark of Amkor Technologies.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-011409-A

(408) 955-1690

January 2009

12 3 4 5 6 7...20

中文翻译

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与MIC3231YTSE相关器件

型号	品牌	获取价格	描述	数据表
MIC3231YTSETR	MICREL	获取价格	IC,LASER DIODE/LED DRIVER,TSSOP,16PIN,PLASTIC
MIC3231YTSE-TR	MICROCHIP	获取价格	SWITCHING CONTROLLER
MIC3232	MICREL	获取价格	Constant Current Boost Controller for Driving High Power LEDs
MIC3232	MICROCHIP	获取价格	The MIC3230/1/2 are constant current boost switching controllers specifically designed to
MIC3232YMM	MICREL	获取价格	Constant Current Boost Controller for Driving High Power LEDs
MIC3232YMM	MICROCHIP	获取价格	SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO10
MIC3232YMMTR	MICREL	获取价格	SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO10, LEAD FREE, MSOP-10
MIC3232YMMTR	MICROCHIP	获取价格	SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO10, LEAD FREE, MSOP-10
MIC3232YMM-TR	MICROCHIP	获取价格	SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO10
MIC3263	MICREL	获取价格	Six-Channel WLED Driver for Backlighting Applications with Flicker-Free Dimming

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