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参数资料
| 型号： | LTC3490EDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 9/12页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER PHOTO FLASH 8-DFN |
| 标准包装： | 121 |
| 恒定电流： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz ~ 1.6MHz |
| 电源电压： | 1 V ~ 3.2 V |
| 输出电压： | 2.8 V ~ 4 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN-EP（3x3） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 1339 (CN2011-ZH PDF) |
LTC3490
APPLICATIO S I FOR ATIO
Red Luxeon LEDs
The red, red-orange and amber Luxeon LEDs have a lower
forward voltage than the white, blue and green LEDs. Since
the LTC3490 internal circuitry is powered from the output,
it requires a minimum LED voltage of 2.5V for reliable
operation. The minimum forward voltage on the red LEDs
is only 2.31V. The LTC3490 requires an additional 190mV
for proper operation. In non-dimming applications, this can
be accomplished with a 0.6 ? resistor in series with the
LED. The resistor voltage drops too low in dimming appli-
cations, so a Schottky diode is recommended to keep
sufficient voltage at the output at lower currents.
TYPICAL APPLICATIO S
2-Cell Adjustable Amplitude LED Driver
3.3 μ H
ON/OFF
V IN
SW
2 NiMH OR
+
LTC3490
CAP
ALKALINE
CELLS
+
1M
CTRL/SHDN LED
LOBAT
CELLS
GND
4.7 μ F
LUMILEDS
LUXEON
LXHL-BW02
3490 TA03
Soft Turn-Off LED Driver
3.3 μ H
ON/OFF
V IN
SW
CAP
1 NiMH OR
ALKALINE
CELL
+
1 μ F
1M
LTC3490
CTRL/SHDN LED
CELLS
LOBAT
GND
350mA
4.7 μ F
LUMILEDS
LUXEON
LXHL-BW02
3490 TA04
3490fa
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3490ES8 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Single Cell 350mA LED Driver |
| LTC3490ES8#PBF | 功能描述:IC LED DRIVER PHOTO FLASH 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:60 系列:- 恒定电流:- 恒定电压:- 拓扑:线性（LDO），PWM，升压（升压） 输出数:8 内部驱动器:是 类型 - 主要:背光 类型 - 次要:RGB，白色 LED 频率:500kHz ~ 1.5MHz 电源电压:4.75 V ~ 26 V 输出电压:45V 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* 工作温度:-40°C ~ 85°C |
| LTC3490ES8#TRPBF | 功能描述:IC LED DRIVER PHOTO FLASH 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| LTC3499 | 制造商:LINER 制造商全称:Linear Technology 功能描述:750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection |
| LTC3499B | 制造商:LINER 制造商全称:Linear Technology 功能描述:750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection |
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