Datasheet > DIO5661

DIO5661

更新时间： 2024-04-09 18:59:16

品牌	Logo	应用领域
帝奥微 - DIOO		/
页数	文件大小	规格书
16页	489K
描述
DIO5661 is a serial white LED driver, featuring an architecture of 86% high-efficiency current mod

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DIO5661 数据手册

Rev 1.2

DIO5661

37V Step-Up LED Driver with PWM to Constant Current

Dimming Mode

Features

Descriptions

DIO5661 is a serial white LED driver, featuring an

architecture of 86% high-efficiency current mode

boost converter, driving up to 10 serial LEDs or a

3x13(3LEDs in rows) LED matrix. And it adopts

PWM to Constant Current dimming control mode,

with wide frequency range from 200Hz to 200kHz

(The dimming frequency above 10kHz is

recommended). The serial configuration assures

the very most brightness consistency of the

whole LED array.



Drive up to 10 serial LEDs

PWM to Constant Current dimming mode

Integrated 40V high current switch

(1.3A limit)



Wide V_INInput Range: 2.7V~5.5V

Dimming scheme up to 100:1 range

Up to 86% PWM converter Efficiency

Low 200mV feedback voltage

LED open-circuit (OVP) protection: 37V

High switching frequency: 1.1MHz

For Compact Solution Size

Integrated Soft start

DIO5661 works on 1.1MHz switching frequency,

which can maximize current output of 1.3A limit

and achieve high current conversion efficiency

and result in external compact component size.

Additionally, the total external component

number is minimized due to the integrated

low-side power MOSFET.

< 1µA shutdown current

Compact SOT23-6, TSOT23-6, DFN2*2-6

Package



Green compliant

-40 to 85 ˚C Temperature range

Applications



LED backlighting

DIO5661 integrates multiple protection features,

such as LED open-circuit protection, thermal

shutdown protection and cycle-by-cycle input

current limit protection. And the built-in soft start

circuit limits inrush current when the circuit

starts.

Mobile Phones

Handheld Devices

Digital Photo Frames

Automotive Navigation

Ordering Information

Order Part Number

Top Marking

T_A

Package

DIO5661ST6

DIO5661TST6

DIO5661CD6

61YW

D61

Green

-40 to 85°C

SOT23-6

TSOT23-6

DFN2*2-6 E

Tape & Reel, 3000

www.dioo.com

DIO5661• Rev. 1.2

12 3 4 5 6 7...16

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