• "

Ordering

目录uIq嘉泰姆

1.产品概述                       2.产品特点uIq嘉泰姆
3.应用范围                       4.下载产品资料PDF文档 uIq嘉泰姆
5.产品封装图                     6.电路原理图                   uIq嘉泰姆
7.功能概述                        8.相关产品uIq嘉泰姆

 uIq嘉泰姆

一,产品概述(General Description)      uIq嘉泰姆

   The  CXSD61028 is a wide input range step down DC/DC converrter from auIq嘉泰姆
high voltage input supplly.Opperating withh an input voltage rannge ofuIq嘉泰姆
8V ～30V  The CXSD61028 achhieves 4.2A continuous output currennt withuIq嘉泰姆
exxcellent loaad and linne reggulation. Thee synchronoous architecctureuIq嘉泰姆
providees for highly efficcient designns. Constantt current annd connstantuIq嘉泰姆
voltaage mode operation provide faast transient respoonse and eaases loop staabilization The CXSD61028 features a dual-channneling CV/C moode control ffunctions. It operates in the Constant outtput Current mode or Constant ouutput Voltagge moode. The oveer current protection cuurrent value is sett by current sensing resisters.uIq嘉泰姆
   The CXSD61028 requires a minimum number of reaadily availabble standarrd external componentts. Othher featuress include caable drop coompensation,uIq嘉泰姆
andd thermal uIq嘉泰姆
二.产品特点(Features)uIq嘉泰姆

ØWidee Input Voltaage Range: 8V ～ 30VuIq嘉泰姆
ØUp too 93% EfficiencyuIq嘉泰姆
Ø No LLoop Compeensation ReqquireduIq嘉泰姆
Ø Duall-channelingg CC/CV conntroluIq嘉泰姆
Ø Cablle drop Commpensation from 0Ω to 0.3ΩuIq嘉泰姆
Ø Proggrammable CC CurrentuIq嘉泰姆
Ø Therrmal ShutdoownuIq嘉泰姆
Ø Overr current prootectionuIq嘉泰姆
Ø UVLO protectionnuIq嘉泰姆
Ø Available in SOPP8-PP PackageuIq嘉泰姆
三,应用范围 (Applications)uIq嘉泰姆

Ø Car Charger / AddaptoruIq嘉泰姆
Ø LED DriveruIq嘉泰姆
Ø Pre-Regulator foor Linear ReeuIq嘉泰姆
Ø Distrributed Power SystemsuIq嘉泰姆
Ø Batteery ChargerruIq嘉泰姆
四.技术规格书下载（产品PDF）uIq嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！uIq嘉泰姆

 uIq嘉泰姆

五,产品封装图 (Package)uIq嘉泰姆

uIq嘉泰姆
六.电路原理图uIq嘉泰姆

uIq嘉泰姆
uIq嘉泰姆
七,功能概述uIq嘉泰姆

Input Supply Voltage ...................................................................................................– 0.3V ～ 35VuIq嘉泰姆

PDRI PIN Voltage.…………………………………………………………………………..– 0.3V ～ 35VuIq嘉泰姆
EN, FB, NDRI Voltages............................................................ .... .... .... ..................... – 0.3V ～ 6VuIq嘉泰姆
SW Voltage .......................................................................................................– 0.3V ～ (VIN + 1V)uIq嘉泰姆
Operating Temperature Range(Note 2)…………………………………………….......–40℃ ～ +85℃uIq嘉泰姆
Junction Temperature…………………………………………………………………………..……+150℃uIq嘉泰姆
Storage Temperature Range................................................................................. – 65℃ ～ +150℃uIq嘉泰姆
Lead Temperature (Soldering, 10 sec)................................................................................... +265℃uIq嘉泰姆
八.CXSD61028双路输出 2.4A 车载充电器应用指南uIq嘉泰姆

8.1应用电路uIq嘉泰姆
uIq嘉泰姆
8.2简要说明uIq嘉泰姆
     (1) 电路应用简单，外部元器件较少，系统成本低，可靠性高。uIq嘉泰姆
     (2) 输出短路保护功能，内置过温保护，输入过压保护，过流保护可调，输出电流：Ics1=100mV/R2，Ics2=100mV/R3uIq嘉泰姆
     输出带有线缆补偿功能：ΔVout(V) = R5(kΩ) · Iout(A)/2000uIq嘉泰姆
     (3) 输入电压范围：8-30V DC。SOP-8 封装。uIq嘉泰姆
8.3DEMO 板 PCB 图uIq嘉泰姆
     uIq嘉泰姆
8.4DEMO 板测试uIq嘉泰姆
uIq嘉泰姆
8.5 注意事项uIq嘉泰姆

（1）PCB 布局时 VIN，GND，SW，VOUT 等功率直线尽量要粗，短，直。uIq嘉泰姆
（2）FB 脚走线尽量远离 SW 信号，并且取样走线需要从输出电容正极接点取。外围最好使用地线包围。uIq嘉泰姆
（3）输入电容要靠近芯片 VIN 和 GND 引脚，输入地，输出地，芯片地线尽量靠近。uIq嘉泰姆
（4）外挂 NMOS 和 PMOS 引脚散热焊盘覆铜面积越大越好，以利散热。uIq嘉泰姆

8.6EMC 改善措施uIq嘉泰姆

（1）Layout：要保证功率环路面积小，地面积大，输入电容靠近芯片，SW 引线尽量短。uIq嘉泰姆
（2）可在 SW 到地间加一个吸收电路：10 欧姆+1NF 来吸收开关尖峰。uIq嘉泰姆
八,相关芯片选择指南                 更多同类产品......uIq嘉泰姆

◀ Previous:Cxsd6218 composite power management chip, which can provide two low-noise high-speed LDOS and one DC-DC buck with 95% efficiency. Due to the CMOS technology the working current consumption

Back to top

Next▶:Cxsd61029 is a pulse width modulation step-down power management integrated circuit constant current and voltage output function, and adopts synchronous rectifier step-down technology