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| 型号： | ZXLD1366ET5TA |
| 厂商： | Diodes Inc |
| 文件页数： | 26/30页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR WHITE BCKLGT 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，背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 500kHz |
| 电源电压： | 6 V ~ 60 V |
| 输出电压： | 60V |
| 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 ~ 125°C |
| 产品目录页面： | 1478 (CN2011-ZH PDF) |
| 其它名称： | ZXLD1366E5DKR ZXLD1366E5DKR-ND |
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A Product Line of
Diodes Incorporated
ZXLD1366
Application Information (cont.)
3.3k
100nF
ADJ
ZXLD1366
GND
GND
High Voltage Tracks
Avoid running any high voltage tracks close to the ADJ pin, to reduce the risk of leakage currents due to board contamination. The ADJ pin is
soft-clamped for voltages above 1.35V to desensitize it to leakage that might raise the ADJ pin voltage and cause excessive output current.
However, a ground ring placed around the ADJ pin is recommended to minimize changes in output current under these conditions.
Evaluation PCB
ZXLD1366 evaluation boards are available on request. Terminals allow users to interface the boards to their preferred LED products.
Dimming Output Current Using PWM
Low Frequency PWM Mode
When the ADJ pin is driven with a low frequency PWM signal (eg 100Hz), with a high level voltage V ADJ and a low level of zero, the output of
the internal low pass filter will swing between 0V and V ADJ , causing the input to the shutdown circuit to fall below its turn-off threshold (200mV
nom) when the ADJ pin is low. This will cause the output current to be switched on and off at the PWM frequency, resulting in an average
output current I OUTavg proportional to the PWM duty cycle.
(See Figure 9 - Low frequency PWM operating waveforms).
The average value of output current in this mode is given by:
I OUTavg 0.2D PWM /R S [for D PWM >0.001]
This mode is preferable if optimum LED 'whiteness' is required. It will also provide the widest possible dimming range (approx. 1000:1) and
higher efficiency at the expense of greater output ripple.
V ADJ
PWM Voltage
0V
Ton
Toff
Output Current
IOUTnom
0
Figure 9 Low Frequency PWM Operating Waveforms
0.2/Rs
IOUTavg
ZXLD1366
Document number: DS31992 Rev. 8 - 2
26 of 30
www.diodes.com
October 2013
? Diodes Incorporated
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相关代理商/技术参数 |
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| ZXLD1370 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:60V HIGH ACCURACY BUCK/BOOST/BUCK-BOOST LED DRIVER CONTROLLER |
| ZXLD1370_11 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:60V HIGH ACCURACY BUCK/BOOST/BUCK-BOOST LED DRIVER CONTROLLER |
| ZXLD1370_1103 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:60V HIGH ACCURACY BUCK/BOOST/BUCK-BOOST LED DRIVER-CONTROLLER WITH AEC-Q100 |
| ZXLD1370EST16TC | 功能描述:LED照明驱动器 6V TO 60V 11uA 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 |
| ZXLD1371 | 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:60V HIGH ACCURACY BUCK/BOOST/BUCK-BOOST LED DRIVER-CONTROLLER |
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