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LT3596EUHG-PBF PDF预览

LT3596EUHG-PBF

更新时间： 2024-09-24 11:56:47
品牌 Logo 应用领域
凌特 - Linear 驱动器
页数 文件大小 规格书
20页 435K
描述
60V Step-Down LED Driver

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中文翻译

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LT3596EUHG-PBF 数据手册

 浏览型号LT3596EUHG-PBF的Datasheet PDF文件第2页浏览型号LT3596EUHG-PBF的Datasheet PDF文件第3页浏览型号LT3596EUHG-PBF的Datasheet PDF文件第4页浏览型号LT3596EUHG-PBF的Datasheet PDF文件第5页浏览型号LT3596EUHG-PBF的Datasheet PDF文件第6页浏览型号LT3596EUHG-PBF的Datasheet PDF文件第7页 
LT3596  
60V Step-Down LED Driver  
FeaTures  
DescripTion  
The LT®3596 is a 60V step-down LED Driver. It achieves  
10,000:1 digital PWM dimming at 100Hz with fast NPN  
current sources driving up to 10 LEDs in each channel.  
100:1 LED dimming can also be done with analog control  
of the CTRL1-3 pin.  
n
300mA Buck Regulator, Drives Up to 10 LEDs per  
Channel with Fast NPN Current Sources  
n
Fast Current Sources for <1µs Pulse Widths  
(10,000:1 True Color PWM™ Dimming at 100Hz)  
n
LEDs Disconnected in Shutdown  
n
Adaptive V  
for Increased Efficiency  
OUT  
The step-down switching frequency is programmable  
between 200kHz and 1MHz and is synchronizable to an  
external clock. The LT3596 also provides maximum LED  
brightness while adhering to manufacturers’ specifica-  
tions for thermal derating. The derate temperature is  
programmedbyplacinganegativetemperaturecoefficient  
(NTC) resistor on the master control pin.  
n
n
n
n
n
n
n
n
n
n
6V to 60V Input Voltage Range  
1.5% ꢀccurate LED Current Matching  
External Resistors Set LED Current for Each Channel  
Requires No External Compensation  
ProgrammableSwitchingFrequency(200kHzto1MHz)  
Synchronizable to External Clock  
Open, Short LED Detection and Reporting  
Programmable LED Thermal Derating and Reporting  
Programmable Temperature Protection  
5mm × 8mm Thermally Enhanced QFN Package with  
0.6mm High Voltage Pin Spacing  
The LT3596 adaptively controls V  
in order to achieve  
OUT  
optimalefficiency.Otherfeaturesinclude:1.5%LEDcurrent  
matching between channels, open LED reporting, shorted  
LEDpinprotectionandreporting, programmableLEDcur-  
rent and programmable temperature protection.  
applicaTions  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation and True Color PWM is a trademark of Linear Technology Corporation.  
ꢀll other trademarks are the property of their respective owners.  
n
LED Billboards and Signboards  
n
Mono, Multi, Full Color LED Displays  
n
Large Screen Display LED Backlighting  
ꢀutomotive, Industrial and Medical Displays  
n
Typical applicaTion  
48V 1MHz Step-Down 8W, 100mA LED Driver (Eight White LEDs per Channel)  
V
IN  
48V  
5V  
BIAS  
V
BIAS  
IN  
10µF  
4.7µF  
270k  
91k  
BOOST  
SW  
EN/UVLO  
100µH  
100nF  
10,000:1 PWM Dimming at 100Hz  
V
OUT  
4.7µF  
LT3596  
100k  
3.65k  
DA  
GND  
SYNC  
SYNC  
RT  
PWM  
2V/DIV  
33.2k  
FB  
PWM1  
PWM2  
PWM3  
PWM1  
PWM2  
PWM3  
V
OUT  
I
CTRL1  
CTRL2  
CTRL3  
CTRL1  
CTRL2  
CTRL3  
LED  
50mA/DIV  
BIAS  
100k  
LED1  
LED2  
LED3  
FAULT  
FAULT  
3596 TA01b  
200ns/DIV  
V
REF  
3696 TA01a  
90.9k  
10k  
I
I
I
SET1  
SET2  
SET3  
TSET  
CTRLM  
100k  
49.9k  
20k  
20k  
20k  
3596f  
ꢀ
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中文翻译

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