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| 型号： | LTM8040EV#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR HP CONST CURR 66-LGA |
| 产品培训模块： | High Voltage µModule DC/DC Regulators Power Module vs. Discrete DC to DC |
| 产品目录绘图： | LTM Series_15x15x4.3 |
| 设计资源： | LTM8040 Spice Model LTM8040 Gerber Files |
| 特色产品： | μModule Products DC/DC μModule Regulator Family |
| 标准包装： | 170 |
| 系列： | µModule® |
| 输入电压： | 4 ~ 36 V |
| 输出电压： | 2.5 ~ 13 V |
| 电流 - 输出： | 1A |
| 功率（瓦特）： | 13W |
| 安装类型： | 表面贴装 |
| 端接类型： | 表面安装 (SMD，SMT) |
| 尺寸/尺寸： | 0.59" L x 0.35" W x 0.17" H（15.0mm x 9.0mm x 4.3mm） |
| 工作温度： | 0°C ~ 125°C |
| 类型： | 降压，带调光 |
| 产品目录页面： | 2711 (CN2011-ZH PDF) |
LTM8040
36V, 1A μModule
LED Driver and Current Source
FEATURES
DESCRIPTION
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True Color PWM? Delivers Constant Color with
250:1 Dimming Ratio
Wide Input Range: 4V to 36V
Up to 1A LED Current
Adjustable Control of LED Current
High Output Current Accuracy is Maintained Over a
Wide Range from 35mA to 1A
Open LED and Short-Circuit Protection
Grounded LED Cathode Connection
Small Footprint (15mm × 9mm × 4.32mm)
The LTM ? 8040 is a ?xed frequency 1A step-down DC/DC
μModule ? regulator designed to operate as a constant cur-
rent source. Internal circuitry monitors the output current
to provide accurate current regulation, which is ideal for
driving high current LEDs. High output current accuracy
is maintained over a wide current range, from 35mA to
1A, allowing a wide dimming range over an output volt-
age range of 2.5V to 13V. Unique PWM circuitry allows a
dimming range of 250:1, avoiding the color shift normally
associated with LED current dimming.
Automotive and Avionic Lighting
Architectural Detail Lighting
Display Backlighting
Constant Current Sources
SurfaceMountLGAPackage
APPLICATIONS
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L , LT, LTC, LTM, μModule, Linear Technology and the Linear logo 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.
TYPICAL APPLICATION
1A μModule LED Driver
With its wide input range of 4V to 36V, the LTM8040 regu-
lates a broad array of power sources, from 4-cell batteries
and 5V logic rails to unregulated wall transformers, lead
acid batteries and distributed power supplies.
The LTM8040 is packaged in a thermally enhanced,
compact (15mm × 9mm × 4.32mm) molded land grid
array (LGA) package suitable for automated assembly
by standard surface mount equipment. The LTM8040 is
Pb-free and RoHS compliant.
Ef ?ciency
V IN *
11.5V TO 36V
1μF
V IN
SHDN
LEDA
LPWR
100
90
LTM8040
TWO WHITE LEDs
80
ADJ
PWM
BIAS
6V TO 9V
1A
70
60
215k
650kHz
RT
GND
50
40
30
*RUNNING VOLTAGE. SEE APPLICATION INFORMATION
FOR START-UP REQUIREMENTS
8040 TA01
20
10
V IN = 12V
TWO 3.3V AT 1A LEDs
OUTPUT CURRENT ADJUSTED
WITH ADJ VOLTAGE
0
0
200
400
600
800
1000
OUTPUT CURRENT (mA)
8040 TA01b
8040fa
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTM8040IV#PBF | 功能描述:IC LED DRVR HP CONST CURR 66-LGA RoHS:是 类别:电源 - 板载 >> LED 驱动器 - 恒定电流 系列:µModule® 产品目录绘图:4015, 7021 Series 标准包装:25 系列:7021 BuckPlus 输入电压:5 ~ 32V 输出电压:2.5 ~ 29.5V 电流 - 输出:700mA 功率（瓦特）:22.4W 安装类型:通孔 端接类型:PCB 引脚 尺寸/尺寸:0.83" L x 0.83" W x 0.43" H（21.1mm x 21.1mm x 10.9mm） 工作温度:-40°C ~ 80°C 类型:降压，带调光 批准:- 其它名称:788-1018 |
| LTM8040IV#PBF | 制造商:Linear Technology 功能描述:DC/DC MICRO MODULE IC |
| LTM8040IVPBF | 制造商:Linear Technology 功能描述:LED Driver 1A 36V Current Source LGA66 |
| LTM8040IV-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:36V, 1A μModule LED Driver |
| LTM8040V | 制造商:LINER 制造商全称:Linear Technology 功能描述:36V, 1A μModule LED Driver |
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