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| 型号： | MX841BE |
| 厂商： | IXYS |
| 文件页数： | 1/6页 |
| 文件大小： | 0K |
| 描述： | IC CONVERTER WHITE LED 8-SOIC |
| 标准包装： | 100 |
| 拓扑： | 升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载，背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 600kHz ~ 1.3MHz |
| 电源电压： | 1.1 V ~ 5.5 V |
| 输出电压： | 20V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
IXYS
Features:
? 1.1V to 5.5V Input Range
? 2 Amp Peak Switch Current
? High Efficiency > 80%
? 20V Maximum Output with Over-Voltage
Protection
? LED Intensity Control
? 1.0 MHz Fixed Frequency Switching
? 8 Lead SOIC Package
Applications:
? White LED Display Backlighting
- Low Voltage: Mobile Phones, PDA’s,
MP3 Players, Digital Cameras
- High Drive Current: Vehicle
Instrumentation Panels
MX841
White LED Step-Up Converter
General Description
The MX841 is a fixed frequency, constant current
source step-up DC/DC converter. The output current
is directly regulated making the MX841 ideal for
driving series connected white light emitting diodes
(LED’s) in backlight applications. The MX841
powers up to 3 series white LED’s at 1.1V, and 20
series/parallel white LED’s at 5.0V.
The MX841 features a 1.0MHz switching frequency
to accommodate the use of small capacitors and a
small inductor necessary in size sensitive portable
applications. Light intensity and shutdown are
conveniently controlled by a single analog voltage.
Power efficiency and battery life are extended
through the use of a high voltage, low R DSON N-
channel MOSFET switch.
Ordering Information
Part No. Description
17000-00TU SOIC-8 Standard Tube
17000-00TR SOIC-8 Standard T&R
Qty
100
2500
The MX841 is designed to operate over a
temperature range of -40°C to +85°C, and is
available in an SOIC-8 Package, with or without an
Exposed Pad in Tube or on Tape and Reel.
(Alternate package types available upon request).
17043-00TU
17043-00TR
SOIC-8 Exposed Pad Tube
SOIC-8 Exposed Pad T&R
100
2500
Functional Block Diagram
Typical Application
VDD
SW
SW
Vbattery
Vboost
CTL/SLEEP
osc
drive r
5
1
4
OVD
6
Analog
Gnd
err amp/
comparato r
band gap
+
compar e
OVD
CTRL
7
CTL/
SLEEP
MX841
Isense
8
Switch
Gnd
sleep de t
bias gen
Isense
Analog
GND
Switch
GND
Rsense
2
3
MX841
Drawing No. 17023
1
Preliminary
03/10/05
www.ixys.net
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MX841BETR | 功能描述:LED照明驱动器 Amps V RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MX842RS | 制造商:BCM Advanced Research 功能描述:ATI RS842 CHIPS SEMPRON/TURION 1GIG DDR 10/100 2COM 8USB - Bulk |
| MX844 | 制造商:IXYS 制造商全称:IXYS Corporation 功能描述:12 BIT, MULTI-CHANNEL POWER & TEMP SENSOR FOR MONITOR & CONTROL SYSTEMS |
| MX844R | 功能描述:板上安装温度传感器 12-Bit Power & Temp Sensor QFN-28 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MX844RTR | 功能描述:板上安装温度传感器 12-Bit Power & Temp Sensor QFN-28 on T&R RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
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