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參數(shù)資料
| 型號(hào)： | LM27952SD |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | White LED Adaptive 1.5X/1X Switched Capacitor Current Driver |
| 中文描述： | LED DISPLAY DRIVER, PDSO14 |
| 封裝： | 4 X 3 MM, 0.80 MM HEIGHT, LLP-14 |
| 文件頁(yè)數(shù)： | 7/8頁(yè) |
| 文件大?。?/td> | 521K |
| 代理商： | LM27952SD |
Application Information
(Continued)
The junction temperature rating takes precedence over the
ambient temperature rating. The LM27952 may be operated
outside the ambient temperature rating, so long as the junc-
tion temperature of the device does not exceed the maxi-
mum operating rating of 115C. The maximum ambient tem-
perature rating must be derated in applications where high
power dissipation and/or poor thermal resistance causes the
junction temperature to exceed 115C.
PCB Layout Considerations
The LLP is a leadframe based Chip Scale Package (CSP)
with very good thermal properties. This package has an
exposed DAP (die attach pad) at the center of the package
measuring 3.0mm x 1.6mm. The main advantage of this
exposed DAP is to offer lower thermal resistance when it is
soldered to the thermal land on the PCB. For PCB layout,
National highly recommends a 1:1 ratio between the pack-
age and the PCB thermal land. To further enhance thermal
conductivity, the PCB thermal land may include vias to a
ground plane. For more detailed instructions on mounting
LLP packages, please refer to National Semiconductor Ap-
plication Note AN-1187.
L
www.national.com
7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM27952SDX | White LED Adaptive 1.5X/1X Switched Capacitor Current Driver |
| LM27961 | Dual-Display White LED Driver with 3/2x Switched Capacitor Boost |
| LM27961TL | Dual-Display White LED Driver with 3/2x Switched Capacitor Boost |
| LM27961TLX | Dual-Display White LED Driver with 3/2x Switched Capacitor Boost |
| LM2798 | WIRE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM27952SD | 制造商:Texas Instruments 功能描述:LED DRIVER, SW CAP, POWERWISE, LLP-14 |
| LM27952SD/NOPB | 功能描述:LED照明驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| LM27952SDX | 功能描述:LED照明驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| LM27952SDX/NOPB | 功能描述:LED照明驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| LM27953 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:White LED Driver with Four LED Current Sinks and 3/2x Switched Capacitor Boost |
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