参数资料
型号: ZXLD1370EST16TC
厂商: Diodes Inc
文件页数: 33/39页
文件大小: 0K
描述: IC LED DRVR HIGH BRIGHT TSSOP-16
特色产品: ZXLD1370 High Accuracy LED Driver
标准包装: 1
恒定电流:
拓扑: PWM,降压(降压),升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 车载,通用
类型 - 次要: 高亮度 LED(HBLED)
频率: 300kHz ~ 1MHz
电源电压: 6 V ~ 60 V
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm)裸露焊盘
供应商设备封装: 16-TSSOP-EP
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: ZXLD1370EST16TCDKR
A Product Line of
Diodes Incorporated
ZXLD1370
Application Information (cont.)
PCB Layout Considerations
PCB layout is a fundamental activity to get the most of the device in all configurations. In the following section it is possible to find some
important insight to design with the ZXLD1370 both in Buck and Buck-Boost/Boost configurations.
SHP Pin
Inductor, Switch and
Freewheeling Diode
V IN / V AUX
Decoupling
Figure 39 Circuit Layout
Here are some considerations useful for the PCB layout:
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?
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In order to avoid ringing due to stray inductances, the inductor L1, the anode of D1 and the drain of Q1 should be placed as close
together as possible.
The shaping capacitor C1 is fundamental for the stability of the control loop. To this end it should be placed no more than 5mm from
the SHP pin.
Input voltage pins, VIN and VAUX, need to be decoupled. It is recommended to use two ceramic capacitors of 2.2uF, X7R, 100V (C3
and C4). In addition to these capacitors, it is suggested to add two ceramic capacitors of 1uF, X7R, 100V each (C2, C8), as well as a
further decoupling capacitor of 100nF close to the VIN/VAUX pins (C9). VIN and VAUX pins can be short-circuited when the device is
used in buck mode, or can be driven from a separate supply.
ZXLD1370
Document number: DS32165 Rev. 5 - 2
33 of 39
www.diodes.com
September 2012
? Diodes Incorporated
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ZXLD1374_11 制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:60V HIGH ACCURACY 1.5A BUCK/BOOST/BUCK-BOOST