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ZXLD1322DCCTC PDF预览

ZXLD1322DCCTC

更新时间： 2024-11-27 07:42:39
品牌 Logo 应用领域
美台 - DIODES 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管DC-DC转换器PC
页数 文件大小 规格书
17页 271K
描述
BUCK/BOOST MODE DC-DC CONVERTER

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中文翻译

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ZXLD1322DCCTC 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：DFN
包装说明：HVSON,针数：14
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：19 weeks
风险等级：1.72Samacsys Confidence：4
Samacsys Status：ReleasedSamacsys PartID：441738
Samacsys Pin Count：15Samacsys Part Category：Integrated Circuit
Samacsys Package Category：Small Outline No-leadSamacsys Footprint Name：DFN4030-14
Samacsys Released Date：2017-02-17 18:15:50Is Samacsys：N
其他特性：PFM CONTROL TECHNIQUE IS ALSO AVAILABLE模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制技术：PULSE WIDTH MODULATION最大输入电压：15 V
最小输入电压：2.5 V标称输入电压：4 V
JESD-30 代码：R-PDSO-N14JESD-609代码：e3
长度：4 mm湿度敏感等级：1
功能数量：1端子数量：14
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：3 A封装主体材料：PLASTIC/EPOXY
封装代码：HVSON封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.9 mm
表面贴装：YES切换器配置：BUCK-BOOST
最大切换频率：600 kHz温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：3 mm
Base Number Matches：1

ZXLD1322DCCTC 数据手册

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A Product Line of  
Diodes Incorporated  
ZXLD1322  
BUCK/BOOST MODE DC-DC CONVERTER FOR LED DRIVING WITH 700mA OUTPUT AND CURRENT  
CONTROL  
Description  
The ZXLD1322 is an inductive DC-DC converter, with an internal switch, designed for driving single or multiple LEDs in  
series up to a total of 700mA output current. Applications cover input voltages ranging from 2.5V to 15V. Depending upon  
supply voltage and external components, this can provide up to 12W of output power. The device employs a variable 'on'  
and 'off' time control scheme with adjustable peak switch current limiting and operates in Buck/Boost mode, offering higher  
power efficiency and lower system cost than conventional PFM buck/boost circuitry. The device includes the DC-DC  
converter, a high-side current monitor and an NPN switching transistor to provide an integrated solution offering small PCB  
size, competitive cost/performance, high power efficiency of DC-DC conversion and maximum LED brightness/reliability.  
More importantly, it retains design flexibility to add customer specific features. The feedback control circuitry inside the  
ZXLD1322 provides excellent load and current regulation, resulting in very stable LED current over the useful life of the  
battery and over the full operating temperature range. The LED current can be adjusted from 100% down to 10% of the set  
value by applying a dc voltage to the ADJ pin and down to 1% by applying a PWM signal. An on-chip LED protection circuit  
also allows output current to be reduced linearly above a predetermined threshold temperature using an external thermistor  
at the TADJ pin. External resistors set nominal average LED current and coil peak current independently. The device can  
be shut down by applying a continuous low level dc voltage to the ADJ pin.  
Features  
Pin Assignments  
•
•
•
•
•
•
•
•
•
•
•
•
2.5V to 15V Input Voltage Range  
Up to 700mA output current  
Typical efficiency# >80%  
User-defined thermal control of LED  
output current using external thermistor  
High output current stability over input  
voltage and temperature  
12μA typical standby current  
LED current adjustable from 100%  
down to 2%  
Adjustable Soft-Start  
(Top View)  
Capable of driving 3 LEDs in series  
DFN4030-14 with Exposed Pad  
4mm x 3mm  
Applications  
0.50mm pitch  
•
•
•
High power LED flashlights  
LED back-up lighting  
General LED lighting  
1.5W @ TA = 70°C  
Typical Application Circuit  
DFN4030-14 Package(Bottom View)  
45° chamfer denote Pin 1  
Notes:  
#. Using standard external components as specified under electrical characteristics. Efficiency is dependent upon external component types and  
values. Higher efficiency is possible with alternative coils.  
1 of 17  
www.diodes.com  
April 2010  
© Diodes Incorporated  
ZXLD1322  
Document number: DS32166 Rev. 3 - 2  
1234567...17

中文翻译

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