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LT3592IMSE-TRPBF PDF预览

LT3592IMSE-TRPBF

更新时间： 2024-02-26 15:45:56
品牌 Logo 应用领域
凌特 - Linear 驱动器
页数 文件大小 规格书
24页 304K
描述
500mA Wide Input Voltage Range Step-Down LED Driver with 10:1 Dimming

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中文翻译

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LT3592IMSE-TRPBF 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：HTSSOP,
针数：10Reach Compliance Code：compliant
风险等级：5.01接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：S-PDSO-G10JESD-609代码：e3
长度：3 mm湿度敏感等级：1
复用显示功能：NO功能数量：1
区段数：2端子数量：10
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.1 mm最大供电电压：36 V
最小供电电压：3.6 V标称供电电压：12 V
表面贴装：YES温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：3 mm
Base Number Matches：1

LT3592IMSE-TRPBF 数据手册

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LT3592  
500mA Wide Input Voltage  
Range Step-Down LED Driver  
with 10:1 Dimming  
FEATURES  
DESCRIPTION  
The LT®3592 is a fixed frequency step-down DC/DC con-  
verter designed to operate as a constant-current source.  
An external sense resistor monitors the output current  
allowing accurate current regulation, ideal for driving  
high current LEDs. The output current can be dimmed  
by a factor of 10 using an external signal for nighttime  
brake lights.  
n
Wide Input Voltage Range  
Operation from 3.6V to 36V  
n
Resistor Adjustable 400kHz–2.2MHz Switching  
Frequency  
n
Shorted and Open LED Protected  
n
Internal Switch Current Sense Resistor  
n
External Resistor Programs LED Current, Pin  
Selects 10:1 Ratio  
50mA/500mA LED Current Settings  
Thehighswitchingfrequencyoffersseveraladvantagesby  
permitting the use of a small inductor and small ceramic  
capacitors.SmallcomponentscombinedwiththeLT3592’s  
10-pinDFNleadlesssurfacemountpackagesavespaceand  
cost versus alternative solutions. The constant switching  
frequencycombinedwithlow-impedanceceramiccapaci-  
tors result in low, predictable output ripple.  
n
n
Catch Diode Current Sense to Prevent Runaway at  
High V  
IN  
n
Small Thermally Enhanced 10-Lead DFN  
(2mm × 3mm) and MSOP-10 Packages  
APPLICATIONS  
A wide input voltage range of 3.6V to 36V makes the  
LT3592 useful in a variety of applications. Current mode  
PWM architecture provides fast transient response and  
cycle-by-cyclecurrentlimiting.Thermalshutdownprovides  
additional protection.  
n
Automotive Signal Lighting  
Industrial Lighting  
n
n
Constant-Current, Constant Voltage Supplies  
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
50/500mA Two Series Red LED Driver  
Efficiency for 2 Red LEDs, L = 10μH, 900kHz  
100  
95  
V
IN  
V
BOOST  
LT3592  
IN  
7V TO 32V  
1μF  
0.1μF  
10μH  
90  
SW  
BRIGHT 500mA  
85  
80  
75  
70  
65  
60  
55  
50  
DA  
CAP  
+
SHDN  
ON  
200/20mV  
–
0.4Ω  
4.7μF  
BRIGHT  
OUT  
BRAKE  
51k  
10k  
R
T
V
FB  
GND  
140k  
900kHz  
4
8
12  
16  
20  
24  
28  
INPUT VOLTAGE (V)  
3592 TA01a  
3592 TA01b  
3592fa  
1
1234567...24

中文翻译

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