- 您现在的位置：买卖IC网 > Datasheet目录370 > ZXLD1101ET5TA (Diodes Inc)IC LED DRVR WHITE BCKLGT SOT23-5 Datasheet资料下载
参数资料
| 型号： | ZXLD1101ET5TA |
| 厂商： | Diodes Inc |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT SOT23-5 |
| 产品变化通告： | End of Life 16/Sept/2011 |
| 标准包装： | 1 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 2.5 V ~ 5.5 V |
| 输出电压： | 28V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 1478 (CN2011-ZH PDF) |
| 其它名称： | ZXLD1101ET5DKR |
Last Time Buy
Closest Alternative is AP5724WUG-7
ZXLD1101
Open circuit protection
For applications where the LED chain can go
open-circuit a Zener diode can be connected across the
LED chain preventing over-voltage and possible
damage to the main switching transistor. The Zener
diodes should be selected by ensuring its voltage
rating is higher than the combined forward voltage of
the LED chain. Under open circuit conditions the
current in the Zener diode defines the output current
as:
Capacitor selection
A ceramic capacitor grounded close to the GND pin of
the package is recommended at the output of the
d e v i ce . S u r f a ce m o u n t t y p e s o f f e r t h e b e st
performance due to their lower inductance. A
minimum value of 0.22 F is advised, although higher
values will lower switching frequency and improve
efficiency especially at lower load currents. A higher
value will also minimise ripple when using the device
to provide an adjustable dc output current.
I Z =
V FB
R Z
A good quality, low ESR capacitor should also be used
for input decoupling, as the ESR of this capacitor is
effectively in series with the source impedance and
To limit battery drain in this fault condition the Zener
diode current should be less than 1mA.
lowers overall efficiency. This capacitor has to supply
the relatively high peak current to the coil and smooth
the current ripple on the input supply. A minimum
value of 1 F is acceptable if the input source is close to
the device, but higher values will improve performance
at lower input voltages, when the source impedance is
high. The input capacitor should be mounted as close
as possible to the IC.
For maximum stability over temperature, capacitors
with X7R dielectric are recommended, as these have a
much smaller temperature coefficient than other types.
A table of recommended manufacturers is provided
below:
Manufacturer
Murata
Taiyo Yuden
Kemet
AVX
Website
www.murata.com
www.t-yuden.com
www.kement.com
www.avxcorp.com
ISSUE 4 - JULY 2004
SEMICONDUCTORS
10
相关PDF资料 |
PDF描述 |
|---|---|
| ZXLD1320DCATC | IC LED DRVR WHITE BCKLGT 14-TDFN |
| ZXLD1321DCATC | IC LED DRVR WHITE BCKLGT 14-TDFN |
| ZXLD1322DCCTC | IC LED DRIVR WHITE BCKLGT 14-DFN |
| ZXLD1350ET5TA | IC LED DRIVR WHITE BCKLGT TSOT-5 |
| ZXLD1352ET5TA | IC LED DRIVER HIGH BRIGHT TSOT-5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ZXLD1320 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:Buck mode DC-DC converter for LED driving |
| ZXLD1320DCATC | 功能描述:直流/直流开关转换器 DC-DC Buck Conv. 1.5A output RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| ZXLD1321 | 制造商:ZETEX 制造商全称:ZETEX 功能描述:Boost mode DC-DC converter for LED driving with 1A output and current control |
| ZXLD1321DCATC | 功能描述:直流/直流开关转换器 DC-DC Boost Conv 1A output RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| ZXLD1322 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:BUCK/BOOST MODE DC-DC CONVERTER |
发布紧急采购，3分钟左右您将得到回复。