- 您现在的位置：买卖IC网 > Datasheet目录356 > SC618ULTRT (Semtech)IC LED DRIVER PHOTO FLASH 10-MLP Datasheet资料下载
参数资料
| 型号： | SC618ULTRT |
| 厂商： | Semtech |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER PHOTO FLASH 10-MLP |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | 切换式电容器（充电泵） |
| 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： | 250kHz |
| 电源电压： | 3 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-UFDFN 裸露焊盘 |
| 供应商设备封装： | 10-MLPD（3x3） |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 1359 (CN2011-ZH PDF) |
| 其它名称： | SC618ULDKR |
NOT RECOMMENDED FOR NEW DESIGN
SC618
Charge Pump Flash LED
Driver with Safety Timer
POWER MANAGEMENT
Features
Flash and spotlight — two selectable modes
Flash mode — up to 700mA output
Flash mode — 500mA max output (over rated voltage,
temperature, and load conditions)
Flash mode safety timer shut-off — 1 second
Spotlight mode set to 40% of flash current
Spotlight mode — up to 280mA output
Spotlight mode —1x mode (under most conditions)
for best efficiency
Input range — 3.0V to 5.25V
External flash control pin for synchronization to a cam-
era module or graphics controller
Short-circuit, over-voltage, and over-temperature pro-
tection
Soft-start functionality
Separate flash and spotlight control inputs for maxi-
mum versatility
Ultra-thin package MLPD-UT-10 — 3mm x 3mm x
0.6mm
Description
The SC618 is a high-current charge pump designed spe-
cifically for use with white LEDs used in camera flash
applications. Only two small bucket capacitors are required
to develop the output drive, providing a low EMI solution
compared to inductive boost regulators.
The SC618 has two modes of operation: flash mode and
spotlight mode. In flash mode, the SC618 is capable of
delivering 500mA of regulated current for a duration of
500ms or up to 700mA for a reduced duration. A safety
timer is also included to ensure the LED cannot be left on
indefinitely and overheat. In spotlight mode the SC618
outputs 40% of the flash mode current and can remain
enabled continuously.
An external resistor is connected in series with the LED to
set the current. In flash mode, this resistor can dissipate
up to 175mW, reducing the power dissipation require-
ment of the SC618. The flash input overrides the control
input to make sure the flash function is activated .
Applications
Mobile camera phones
Digital cameras
PDAs with built-in cameras
Typical Application Circuit
VIN
SC618
The SC618 ultra-thin package provides both a low profile
and high thermal effi ciency.
VOUT
V BAT
10 μ F
1 μ F
C1+
GND
1 μ F
White LED
C1-
C2+
ISET
CTRL
1 μ F
C2-
FLASH
R SET
FLASH
CTRL
February 6, 2008
1
相关PDF资料 |
PDF描述 |
|---|---|
| SC620ULTRT | IC LED DRIVER LINEAR 16-MLPQ |
| SC628AULTRT | IC LED DRIVER |
| SC667ULTRT | IC LED DRVR LMU 7CH MLPQUT20 |
| SC668ULTRT | IC LED DRVR LMU 8CH MLPQUT20 |
| SDIN2B2-8G | IC INAND FLASH 8GB 169FBGA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SC619 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Charge Pump Flash LED Driver with Safety Timer |
| SC619_08 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Charge Pump Flash LED Driver with Safety Timer |
| SC619EVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Charge Pump Flash LED Driver with Safety Timer |
| SC619ULTRT | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Charge Pump Flash LED Driver with Safety Timer |
| SC620 | 功能描述:UPS - 不间断电源 620VA/390W 4 Outlet RoHS:否 制造商:Phoenix Contact 功率额定值: 输出电压额定值:24 V 出口数量:2 运行时间（满载）: 运行时间（半载）: |
发布紧急采购，3分钟左右您将得到回复。