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| 型号： | ZXLD1366DACTC |
| 厂商： | Diodes Inc |
| 文件页数： | 17/30页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER WHITE BCKLGT 6-DFN |
| 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： | 6-WDFN 裸露焊盘 |
| 供应商设备封装： | 6-DFN3030（3x3） |
| 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： | ZXLD1366DACDKR |
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A Product Line of
Diodes Incorporated
ZXLD1366
Application Information
Setting Nominal Average Output Current with External Resistor R S
The nominal average output current in the LED(s) is determined by the value of the external current sense resistor (R S ) connected between
V IN and I SENSE and is given by:
I OUTnom = 0.2/R S for R S ≥ 0.2 Ω
The table below gives values of nominal average output current for several preferred values of current setting resistor (R S ) in the typical
application circuit shown on page 1:
R S ( Ω )
0.20
0.27
0.56
Nominal Average Output
Current (mA)
1000
740
357
The above values assume that the ADJ pin is floating and at a nominal voltage of V REF (= 1.25V). Note that R S = 0.2 Ω is the minimum
allowed value of sense resistor under these conditions to maintain switch current below the specified maximum value.
It is possible to use different values of R S if the ADJ pin is driven from an external voltage. (See next section).
Output Current Adjustment by External DC Control Voltage
The ADJ pin can be driven by an external dc voltage (V ADJ ), as shown, to adjust the output current to a value above or below the nominal
average value defined by R S .
+
ADJ
ZXLD1366
GND
DC
GND
The nominal average output current in this case is given by:
I OUTdc = (V ADJ /1.25) x (0.2/R S ) for 0.3< V ADJ <2.5V
Note that 100% brightness setting corresponds to
V ADJ = V REF . When driving the ADJ pin above 1.25V, R S must be increased in proportion
to prevent I OUTdc exceeding 1A maximum.
The input impedance of the ADJ pin is 50k ? ±25% for voltages below V REF and 14.2k ? ±25% for voltages above V REF +100mV.
Output Current Adjustment by PWM Control
Directly Driving ADJ Input
A Pulse Width Modulated (PWM) signal with duty cycle DPWM can be applied to the ADJ pin, as shown below, to adjust the output current to
a value above or below the nominal average value set by resistor R S :
PWM
V ADJ
0V
GND
ADJ
ZXLD1366
GND
ZXLD1366
Document number: DS31992 Rev. 8 - 2
17 of 30
www.diodes.com
October 2013
? Diodes Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ZXLD1366DACTC-CUT TAPE | 制造商:DIODES 功能描述:ZXLD1366 Series 1A 500 kHz High Accuracy LED Driver with Internal Switch - DFN-6 |
| ZXLD1366EN8TC | 功能描述:电流和电力监控器、调节器 LED DRVR W/ INT SW 1A 60V RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| ZXLD1366ET5TA | 功能描述:LED照明驱动器 1A, 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 |
| 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 |
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