Datasheet > LT3966JUJ

LT3966JUJ

更新时间： 2022-06-24 15:42:43

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
36页	2437K
描述
I2C Programmable Quad Monolithic Boost LED Driver

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中文翻译

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LT3966JUJ 数据手册

LT3966

I C Programmable Quad

Monolithic Boost LED Driver

FEATURES

DESCRIPTION

The LT^®3966 is an I C programmable monolithic boost

Four Independent DC/DC Channels

I C Programmable

LED driver with four independent channels. Each chan-

nel provides a 60V current mode boost converter with

an internal 1.6A DMOS power switch, as well as inter-

8192:1 True Color PWM™ Dimming

8-Bit Analog Dimming Pin Scaled by DAC

11-Channel, 8-Bit ADC with 2 External Inputs

nal and external analog and PWM dimming features. I C

1.6A, 60V Internal DMOS Switches

Input Voltage: 3V to 60V

programmable features include a 13-bit (8192:1) digital

PWM generator, 8-bit analog dimming DAC, and flexible

fault reporting and handling.

Output Voltage and Current Monitoring to 60V

High Side PMOS Disconnect and PWM Switch Driver

An onboard 8-bit ADC allows measurement of each

channel’s output voltage and output current, as well

as chip input voltage and two external measurements.

In addition, independent shutdown and standby con-

trol of each channel provides flexible solutions for

multitopology applications.

Adjustable Frequency: 300kHz to 4MHz with Optional

Frequency Synchronization

Thermally Enhanced 6mm × 6mm 40-Lead QFN Package

AEC-Q100 Qualification in Progress

APPLICATIONS

The LT3966 is available in a thermally enhanced 6mm ×

6mm 40-Lead QFN package.

Backlighting

Heads Up Displays

All registered trademarks and trademarks are the property of their respective owners.

TYPICAL APPLICATION

100W Buck Mode LED Driver with I²C Dimming

44V TO 52V

ISP1

330mΩ

ISN1

ISP2

330mΩ

ISN2

ISP3

330mΩ

ISN3

ISP4

Efficiency

4.7μF

×4

330mΩ

ꢀ00

ISN4

TG1

TG2

TG3

TG4

ꢀꢁ

ꢀ0

1μF

ꢀꢁ

68μH

ꢀ0

ꢀ

ꢀ ꢁꢂ0ꢃꢄꢅ

ꢀꢁ

SW1

SW2

SW3

SW4

ISP1–4

ꢀ

ꢀ ꢁꢂꢃ

1MΩ

33k

ꢀ

ꢀ ꢁꢂꢃ

ꢀꢁꢂ

ꢀ0

EN/UVLO

0.0

0.ꢀ

ꢀ.0

ꢀ.ꢁ

ꢀ.0

ꢀ.ꢁ

ꢀ.0

ISN1–4

TG1–4

FB1–4

LT3966

ꢀꢁꢂ ꢃꢄRRꢁꢅꢆ ꢇꢈꢉ

ꢇꢊ ꢋ ꢌꢍ0ꢎꢈꢏꢊ ꢃꢐꢉ

GND

ꢀꢁꢂꢂ ꢃꢄ0ꢅꢆ

EXT1

CTRL/

PWM1–4

EXT2

SDA SCL ALERT

SYNC ADR1–2 INTV

3966 TA01a

97.6k

150k

360kHz

MULTI-

PHASE

I C

4.7μF

BUS

22.1k

INTV

Rev. 0

Document Feedback

For more information www.analog.com

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中文翻译

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