Datasheet > MP24183DQ

MP24183DQ

更新时间： 2024-11-09 01:18:59

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
12页	442K
描述
1A, 55V, Programmable Frequency White LED Driver

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MP24183DQ 数据手册

MP24183

1A, 55V, Programmable Frequency

White LED Driver

The Future of Analog IC Technology

FEATURES

DESCRIPTION



1A Maximum Output Current

Unique Step-up/down Operation (Buck-

Boost Mode)

The MP24183 is a 55V, 1A, white LED driver

suitable for either step-down or inverting

step-up/down applications. It achieves 1A peak

output current over a wide input supply range

with excellent load and line regulation. Current

mode operation provides fast transient

response and eases loop stabilization. Fault

condition protection includes thermal shutdown,

cycle-by-cycle peak current limiting, input over

voltage protection, open strings protection and

output short circuit protection.

The MP24183 incorporates both DC and PWM

dimming onto a single control pin. The separate

input reference ground pin allows for direct

enable and/or dimming control for a positive to

negative power conversion.



Wide 4.5V to 55V Operating Input Range for

Step-Down Applications (Buck Mode)

0.28Ω Internal Power MOSFET Switch

Adjustable Switching Frequency

Analog and PWM Dimming

0.198V Reference Voltage

5μA Shutdown Mode

No minimum LED required

Stable with Low ESR Output Ceramic

Capacitors



Cycle-by-Cycle Over Current Protection

Thermal Shutdown Protection

Open Strings Protection

Input Over Voltage Protection

Output Short Circuit Protection

Available in 10-Pin 3x3 QFN Package

The MP24183 requires a minimum number of

readily available standard external components

and is available in a 10-pin 3mm x 3mm QFN

package.

APPLICATIONS



General LED Illuminations

LCD Backlight Panels

Handheld Computers

Automotive Internal Lighting

Portable Multimedia Players

Portable GPS Devices

“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic

Power Systems, Inc.

TYPICAL APPLICATION

VIN

VDD OVP

BST

4.7

100nF

4.5V<VIN<55V

MP24183

2.2

B360A

EN/DIM

INGND

OFF

DC or PWM Input

VSS COMP RSET

1nF

MP24183 Rev. 1.0

8/28/2008

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...12

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