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参数资料
| 型号： | ZXLD1352ET5TA |
| 厂商： | Diodes Inc |
| 文件页数： | 14/21页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER HIGH BRIGHT TSOT-5 |
| 特色产品： | LED Driver Solutions |
| 标准包装： | 1 |
| 拓扑： | PWM，降压（降压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载 |
| 类型 - 次要： | 高亮度 LED（HBLED），白色 LED |
| 频率： | 1MHz |
| 电源电压： | 7 V ~ 30 V |
| 输出电压： | 30V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-5 细型，TSOT-23-5 |
| 供应商设备封装： | TSOT-23-5 |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 105°C |
| 产品目录页面： | 1478 (CN2011-ZH PDF) |
| 其它名称： | ZXLD1352ET5DKR |
A Product Line of
Diodes Incorporated
ZXLD1352
Application Information (Continued)
Shutdown Mode
Taking the ADJ pin to a voltage below 0.2V will turn off the output and supply current will fall to a low standby level of 20μA
nominal.
Note that the ADJ pin is not a logic input. Taking the ADJ pin to a voltage above V REF will increase output current above the
100% nominal average value. (See graphs for details).
Soft-start
An external capacitor from the ADJ pin to ground will provide soft-start delay, by increasing the time taken for the voltage on this
pin to rise to the turn-on threshold and by slowing down the rate of rise of the control voltage at the input of the comparator. The
graph below shows the variation of soft-start time for different values of capacitor.
Inherent open-circuit LED protection
If the connection to the LED(s) is open-circuited, the coil is isolated from the LX pin of the chip, so the device will not be
damaged, unlike in many boost converters, where the back EMF may damage the internal switch by forcing the drain above its
breakdown voltage.
Capacitor selection
A low ESR capacitor should be used for input decoupling, as the ESR of this capacitor appears in series with the supply source
impedance and 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 1μF is acceptable if the input source is close to the device, but higher
values will improve performance at lower input voltages, especially when the source impedance is high. The input capacitor
should be placed as close as possible to the IC.
For maximum stability over temperature and voltage, capacitors with X7R, X5R, or better dielectric are recommended.
Capacitors with Y5V dielectric are not suitable for decoupling in this application and should NOT be used.
A table of recommended manufacturers is provided below:
Manufacturer
Murata
Taiyo Yuden
Kemet
AVX
Website
www.murata.com
www.t-yuden.com
www.kemet.com
www.avxcorp.com
ZXLD1352
Document number: DS33469 Rev. 3 - 2
14 of 21
www.diodes.com
December 2010
? Diodes Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| ZXLD1356DACTC | IC LED DRIVER WHITE BCKLGT 6-DFN |
| ZXLD1360ET5TA | IC LED DRIVR WHITE BCKLGT TSOT-5 |
| ZXLD1362ET5TA | IC LED DRIVR WHITE BCKLGT TSOT-5 |
| ZXLD1366DACTC | IC LED DRIVER WHITE BCKLGT 6-DFN |
| ZXLD1370EST16TC | IC LED DRVR HIGH BRIGHT TSSOP-16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ZXLD1356 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:High accuracy 550mA, 60V LED driver with internal switch |
| ZXLD1356_10 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:60V 550mA LED DRIVER with AEC-Q100 |
| ZXLD1356DACTC | 功能描述:LED照明驱动器 550mA, 60V LED Drver, Int Swtch 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 |
| ZXLD1356ET5TA | 功能描述:LED照明驱动器 550mA, 60V LED Drver, Int Swtch 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 |
| ZXLD1356QET5TA | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:60V 550mA LED DRIVER and AUTOMOTIVE GRADE |
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