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LT3599EFE-PBF

更新时间： 2024-09-24 05:43:31

品牌	Logo	应用领域
凌特 - Linear		驱动器
页数	文件大小	规格书
24页	273K
描述
4-Channel 120mA LED Driver with ±1.5% Current Matching

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中文翻译

获取价格

数据手册

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LT3599EFE-PBF 数据手册

LT3599

4-Channel 120mA LED Driver

with 1ꢀ5ꢁ Cꢂrrent ꢃatꢄhinꢅ

FEATURES

DESCRIPTION

True Color PWM^TMDimming Ratio Up to 3000:1

The LT^®3599 is a ﬁxed frequency 2A step-up DC/DC

converter designed to drive four strings of 120mA LEDs

up to a 44V output voltage. The switching frequency

is programmable from 200kHz to 2.1MHz through an

external resistor.

Drives Four Strings of LEDs at Up to 120mA

1ꢀ.% Accurate LED Current Matcꢁing

Wide Input Voltage Range: 3.1V to 30V

Output Voltage Up to 44V

Regulates LED Current Even When V > V

OUT

LED dimming can be achieved with analog dimming on

the CTRL pin, and with pulse width modulation dimming

on the PWM pin. The LT3599 accurately regulates LED

current even when the input voltage is higher than the

LED output voltage.

Disconnects LEDs in Shutdown

Programmable Maximum V

(Regulated)

OUT

Open/Short LED Protection and Fault Flags

Programmable LED Current Derating

Adjustable Frequency: 200kHz to 2.1MHz

Synchronizable to an External Clock

Analog Dimming Up to 20:1

Programmable Input UVLO with Hysteresis

Thermally Enhanced 32-Pin (5mm × 5mm) QFN and

28-Pin TSSOP Packages

Additional features include programmable LED current

derating, switching frequency synchronization to an ex-

ternal clock, LED string disable control, OPENLED alert

pin, SHORTLED alert pins and programmable maximum

output voltage when all LED strings are disconnected.

The LT3599 is available in the thermally enhanced 32-pin

(5mm × 5mm) QFN and 28-pin TSSOP packages.

APPLICATIONS

LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

True Color PWM is a trademark of Linear Technology Corporation. All other trademarks are

the property of their respective owners. Protected by U.S. Patents, including 7199560.

Automotive Navigation TFT LCD Displays

Desktop and Notebook TFT LCD Displays

TYPICAL APPLICATION

90% Efﬁcient 12W LED Driver

8V TO 24V

10μH

4.7μF

3.3μF

220pF

3.1V TO 5.5V

LED Current Matcꢁing

OUT

1μF

1.5

O_SW

100k

ALL FOUR LED STRINGS

100k

SHORTLED

OPENLED

200k

1.0

0.5

SHDN/UVLO

PWM

31.6k

PWM

31.6k

33.2k

SYNC

LT3599

CTRL

REF

53.6k

–0.5

–1.0

–1.5

52.3k

SET

LED1

LED2

LED3

LED4

80.6k

DISABLE4

–50

125

–25

100

80mA PER STRING

TEMPERATURE (°C)

GND

47nF

SET

3599 TA01b

16.5k

100pF

10nF

3599 TA01a

3599f

12 3 4 5 6 7...24

中文翻译

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与LT3599EFE-PBF相关器件

型号	品牌	获取价格	描述	数据表
LT3599EFETRPBF	Linear	获取价格	4-Channel 120mA LED Driver with ±1.5% Current
LT3599EFE-TRPBF	Linear	获取价格	4-Channel 120mA LED Driver with ±1.5% Current
LT3599EUH	Linear	获取价格	4-Channel 120mA LED Driver with ±1.5% Current
LT3599EUH#PBF	Linear	获取价格	LT3599 - 4-String 120mA LED Driver with ±1.5%
LT3599EUH#TRPBF	Linear	获取价格	LT3599 - 4-String 120mA LED Driver with ±1.5%
LT3599EUHPBF	Linear	获取价格	4-Channel 120mA LED Driver with ±1.5% Current
LT3599EUH-PBF	Linear	获取价格	4-Channel 120mA LED Driver with ±1.5% Current
LT3599EUHTRPBF	Linear	获取价格	4-Channel 120mA LED Driver with ±1.5% Current
LT3599EUH-TRPBF	Linear	获取价格	4-Channel 120mA LED Driver with ±1.5% Current
LT3599FE	Linear	获取价格	4-Channel 120mA LED Driver with ±1.5% Current

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