CXSD6286

CXSD6286集成了脉宽调制和线性控制器,以及监测和保护功能到一个单一的包。同步PWM控制器驱动双N通道mosfet,提供一个带欠压和过流保护的受控功率输出。线性控制器驱动带欠压保护的外部N沟道MOSFET。

CXSD6286将脉宽调制和线性控制器以及监控和保护功能集成到一个软件包中驱动双N通道mosfet的同步PWM控制器

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产品简介

目录wDg嘉泰姆

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

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


         The CXSD6286 integrates PWM and linear controller, as well as the monitoring and protection functions into a single package. The synchronous PWM controller which drives dual N-channel MOSFETs, which provides one controlled power outputs with under-voltage and over-current protections. Linear controller drives an external N-channel MOSFET with under-voltage protection.wDg嘉泰姆
         CXSD6286 provides excellent regulation for output load variation. An internal 0.8V temperature-compensated ref-erence voltage is designed to meet the arious low out-put voltage applications. CXSD6286 includes a 250kHz free-running triangle-wave oscillator that is adjustable from 70kHz to 800kHz.A power-on-reset (POR) circuit limits the VCC minimum opearting supply voltage to assure the controller working well. Over current protection is achieved by monitoring the voltage drop across the low side MOSFET, eliminat-ing the need for a current sensing resistor and short cir-cuit condition is detected through the FB pin. The over-current protection triggers the soft-start function until the fault events be removed, but Under-voltage protection will shutdown IC directly.Pull the COMP pin below 0.4V will shutdown the controller,and both gate drive signals will be lowwDg嘉泰姆
二.产品特点(Features)wDg嘉泰姆


1.)Provide Two Regulated VoltageswDg嘉泰姆
      - Synchronous Rectified Buck PWM ControllerwDg嘉泰姆
      - Linear ControllerwDg嘉泰姆
2.)Fast Transient ResponsewDg嘉泰姆
      - 0~85% Duty RatiowDg嘉泰姆
3.)Excellent Output Voltage RegulationwDg嘉泰姆
     - 0.8V Internal ReferencewDg嘉泰姆
     - ±1% Over Line Voltage and TemperaturewDg嘉泰姆
4.)Over Current ProtectionwDg嘉泰姆
     - Sense Low-Side MOSFET’s RDS(ON)wDg嘉泰姆
5.)Under Voltage LockoutwDg嘉泰姆
6.)Small Converter SizewDg嘉泰姆
      - 250kHz Free-Running OscillatorwDg嘉泰姆
      - Programmable From 70kHz to 800kHzwDg嘉泰姆
7.)14-Lead SOIC PackagewDg嘉泰姆
8.)Lead Free and Green Devices AvailablewDg嘉泰姆
       (RoHS Compliant)wDg嘉泰姆
三,应用范围 (Applications)wDg嘉泰姆


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Low-Voltage Distributed Power SupplieswDg嘉泰姆
四.下载产品资料PDF文档 wDg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wDg嘉泰姆

 QQ截图20160419174301.jpgwDg嘉泰姆

五,产品封装图 (Package)wDg嘉泰姆


wDg嘉泰姆
六.电路原理图wDg嘉泰姆


blob.pngwDg嘉泰姆
blob.pngwDg嘉泰姆

七,功能概述wDg嘉泰姆


MOSFET SelectionwDg嘉泰姆
The selection of the N-channel power MOSFETs is deter-mined by the RDS(ON), reverse transferwDg嘉泰姆
capacitance (CRSS),and maximum output current requirement.The losses in the MOSFETs have twowDg嘉泰姆
components: conduction loss and transition loss. For the upper and lower MOSFET, the losses arewDg嘉泰姆
approximately given by the following equations:wDg嘉泰姆
PUPPER = Iout (1+ TC)(RDS(ON))D + (0.5)(Iout)(VIN)(tsw)FSwDg嘉泰姆
where IOUT is the load currentwDg嘉泰姆
TC is the temperature dependency of RDS(ON)wDg嘉泰姆
FS is the switching frequencywDg嘉泰姆
tsw is the switching intervalwDg嘉泰姆
D is the duty cyclewDg嘉泰姆
Note that both MOSFETs have conduction losses while the upper MOSFET include an additional transitionwDg嘉泰姆
loss.The switching internal, tsw, is the function of the reverse transfer capacitance CRSS. Figure 7 illustrateswDg嘉泰姆
the switch-ing waveform internal of the MOSFET.The (1+TC) term factors in the temperature dependencywDg嘉泰姆
of the RDS(ON) and can be extracted from the “RDS(ON) vs Tem-perature” curve of the power MOSFET.wDg嘉泰姆
Linear Regulator Input/Output Capacitor SelectionwDg嘉泰姆
The input capacitor is chosen based on its voltage rating.Under load transient condition, the input capacitor willwDg嘉泰姆
momentarily supply the required transient current. A 1μF ceramic capacitor will be sufficient in most applications.wDg嘉泰姆
The output capacitor for the linear regulator is chosen to minimize any droop during load transient condition. InwDg嘉泰姆
addition, the capacitor is chosen based on its voltage rating.wDg嘉泰姆
Linear Regulator MOSFET SelectionwDg嘉泰姆
The maximum DRIVE voltage is determined by the VCC.Since this pin drives an external N-channel MOSFETwDg嘉泰姆

the maximum output voltage of the linear regulator is depen-dent upon the VGS.wDg嘉泰姆
VOUT2MAX = VCC- VGSwDg嘉泰姆
Another criteria is its efficiency of heat removal. The power dissipated by the MOSFET is given by:wDg嘉泰姆
Pdiss = Iout * (VIN - VOUT2)wDg嘉泰姆
where Iout is the maximum load current wDg嘉泰姆
Vout2 is the nominal output voltage In some applications, heatsink may be required to helpwDg嘉泰姆
maintain the junction temperature of the MOSFET below its maximum rating.wDg嘉泰姆
Layout ConsiderationwDg嘉泰姆
In high power switching regulator, a correct layout is im-portant to ensure proper operation of the regulator. InwDg嘉泰姆
general, interconnecting impedances should be mini-mized by using short and wide printed circuit traces. Sig-wDg嘉泰姆
nal and power grounds are to be kept separate and finally combined using ground plane construction or single point grounding. Figure 8 illustrates the layout, with bold lines indicating high current paths. Components along the bold lines should be placed close together. Below is a check-list for your layout:wDg嘉泰姆
· Keep the switching nodes (UGATE, LGATE, and PHASE)away from sensitive small signal nodes since thesewDg嘉泰姆
nodes are fast moving signals. Therefore, keep traces to these nodes as short as possible.wDg嘉泰姆
· The ground return of CIN must return to the combine COUT (-) terminal.wDg嘉泰姆

八,相关产品                         更多同类产品...... wDg嘉泰姆


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3wDg嘉泰姆

25wDg嘉泰姆

0.8wDg嘉泰姆

5~12wDg嘉泰姆

2000wDg嘉泰姆

CXSD62102wDg嘉泰姆

TQFN3x3-16wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

1wDg嘉泰姆

30wDg嘉泰姆

1.8wDg嘉泰姆

28wDg嘉泰姆

0.6wDg嘉泰姆

5wDg嘉泰姆

600wDg嘉泰姆

CXSD62102AwDg嘉泰姆

TQFN 3x3 16wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

1wDg嘉泰姆

30wDg嘉泰姆

1.8wDg嘉泰姆

28wDg嘉泰姆

0.6wDg嘉泰姆

5wDg嘉泰姆

600wDg嘉泰姆

CXSD62103wDg嘉泰姆

QFN4x4-24wDg嘉泰姆

VMwDg嘉泰姆

2wDg嘉泰姆

1wDg嘉泰姆

50wDg嘉泰姆

4.5wDg嘉泰姆

13.2wDg嘉泰姆

0.6wDg嘉泰姆

5~12wDg嘉泰姆

5000wDg嘉泰姆

CXSD62104wDg嘉泰姆

TQFN4x4-24wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

2wDg嘉泰姆

15wDg嘉泰姆

6wDg嘉泰姆

25wDg嘉泰姆

2wDg嘉泰姆

NwDg嘉泰姆

550wDg嘉泰姆

CXSD62105wDg嘉泰姆

TQFN4x4-24wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

2wDg嘉泰姆

15wDg嘉泰姆

6wDg嘉泰姆

25wDg嘉泰姆

2wDg嘉泰姆

NwDg嘉泰姆

550wDg嘉泰姆

CXSD62106|AwDg嘉泰姆

TQFN4x4-4wDg嘉泰姆

TQFN3x3-20wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

2wDg嘉泰姆

20wDg嘉泰姆

3wDg嘉泰姆

28wDg嘉泰姆

0.75wDg嘉泰姆

5wDg嘉泰姆

800wDg嘉泰姆

CXSD62107wDg嘉泰姆

TQFN3x3-16wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

1wDg嘉泰姆

20wDg嘉泰姆

1.8wDg嘉泰姆

28wDg嘉泰姆

0.75wDg嘉泰姆

5wDg嘉泰姆

400wDg嘉泰姆

CXSD62108wDg嘉泰姆

QFN3.5x3.5-14wDg嘉泰姆

TQFN3x3-16wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

1wDg嘉泰姆

20wDg嘉泰姆

1.8wDg嘉泰姆

28wDg嘉泰姆

0.75wDg嘉泰姆

5wDg嘉泰姆

400wDg嘉泰姆

CXSD62109wDg嘉泰姆

TQFN3x3-16wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

2wDg嘉泰姆

20wDg嘉泰姆

1.8wDg嘉泰姆

28wDg嘉泰姆

0.75wDg嘉泰姆

5wDg嘉泰姆

400wDg嘉泰姆

CXSD62110wDg嘉泰姆

QFN3x3-20wDg嘉泰姆

TQFN3x3-16wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

2wDg嘉泰姆

20wDg嘉泰姆

3wDg嘉泰姆

28wDg嘉泰姆

1.8|1.5|0.5wDg嘉泰姆

5wDg嘉泰姆

740wDg嘉泰姆

CXSD62111wDg嘉泰姆

TQFN4x4-24wDg嘉泰姆

|QFN3x3-20wDg嘉泰姆

CMwDg嘉泰姆

1wDg嘉泰姆

2wDg嘉泰姆

15wDg嘉泰姆

5wDg嘉泰姆

28wDg嘉泰姆

0.5wDg嘉泰姆

NwDg嘉泰姆

3000wDg嘉泰姆

CXSD62112wDg嘉泰姆

TDFN3x3-10wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

1wDg嘉泰姆

20wDg嘉泰姆

1.8wDg嘉泰姆

28wDg嘉泰姆

0.5wDg嘉泰姆

5wDg嘉泰姆

250wDg嘉泰姆

CXSD62113|CwDg嘉泰姆

TQFN3x3-20wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

2wDg嘉泰姆

15wDg嘉泰姆

6wDg嘉泰姆

25wDg嘉泰姆

2wDg嘉泰姆

NwDg嘉泰姆

550wDg嘉泰姆

CXSD62113EwDg嘉泰姆

TQFN 3x3 20wDg嘉泰姆

COTwDg嘉泰姆

2wDg嘉泰姆

2wDg嘉泰姆

11wDg嘉泰姆

6wDg嘉泰姆

25wDg嘉泰姆

2wDg嘉泰姆

NwDg嘉泰姆

550wDg嘉泰姆

CXSD62114wDg嘉泰姆

TQFN3x3-20wDg嘉泰姆

COTwDg嘉泰姆

2wDg嘉泰姆

2wDg嘉泰姆

11wDg嘉泰姆

5.5wDg嘉泰姆

25wDg嘉泰姆

2wDg嘉泰姆

NwDg嘉泰姆

280wDg嘉泰姆

CXSD62115wDg嘉泰姆

QFN4x4-24wDg嘉泰姆

VMwDg嘉泰姆

2wDg嘉泰姆

1wDg嘉泰姆

60wDg嘉泰姆

3.1wDg嘉泰姆

13.2wDg嘉泰姆

0.85wDg嘉泰姆

12wDg嘉泰姆

5000wDg嘉泰姆

CXSD62116A|B|CwDg嘉泰姆

SOP-8PwDg嘉泰姆

VMwDg嘉泰姆

1wDg嘉泰姆

1wDg嘉泰姆

20wDg嘉泰姆

2.9wDg嘉泰姆

13.2wDg嘉泰姆

0.8wDg嘉泰姆

12wDg嘉泰姆

16000wDg嘉泰姆

CXSD62117wDg嘉泰姆

SOP-20wDg嘉泰姆

VMwDg嘉泰姆

2wDg嘉泰姆

2wDg嘉泰姆

30wDg嘉泰姆

10wDg嘉泰姆

13.2wDg嘉泰姆

1wDg嘉泰姆

12wDg嘉泰姆

5000wDg嘉泰姆

CXSD62118wDg嘉泰姆

TDFN3x3-10wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

1wDg嘉泰姆

25wDg嘉泰姆

1.8wDg嘉泰姆

28wDg嘉泰姆

0.7wDg嘉泰姆

5wDg嘉泰姆

250wDg嘉泰姆

CXSD62119wDg嘉泰姆

TQFN3x3-20wDg嘉泰姆

COTwDg嘉泰姆

2wDg嘉泰姆

1wDg嘉泰姆

40wDg嘉泰姆

1.8wDg嘉泰姆

25wDg嘉泰姆

REFIN SettingwDg嘉泰姆

5wDg嘉泰姆

700wDg嘉泰姆

CXSD62120wDg嘉泰姆

QFN 3x3 20wDg嘉泰姆

TQFN 3x3 16wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

2wDg嘉泰姆

20wDg嘉泰姆

3wDg嘉泰姆

28wDg嘉泰姆

1.8|1.5 1.35|1.2 0.5wDg嘉泰姆

5wDg嘉泰姆

800wDg嘉泰姆

CXSD62121AwDg嘉泰姆

TQFN3x3 20wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

2wDg嘉泰姆

15wDg嘉泰姆

3wDg嘉泰姆

28wDg嘉泰姆

0.75wDg嘉泰姆

5wDg嘉泰姆

220wDg嘉泰姆

CXSD62121BwDg嘉泰姆

TQFN3x3 20wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

2wDg嘉泰姆

15wDg嘉泰姆

3wDg嘉泰姆

28wDg嘉泰姆

0.75wDg嘉泰姆

5wDg嘉泰姆

220wDg嘉泰姆

CXSD62121wDg嘉泰姆

TQFN3x3-20wDg嘉泰姆

COTwDg嘉泰姆

1wDg嘉泰姆

2wDg嘉泰姆

20wDg嘉泰姆

3wDg嘉泰姆

28wDg嘉泰姆

0.75wDg嘉泰姆

5wDg嘉泰姆

180wDg嘉泰姆

 wDg嘉泰姆

 wDg嘉泰姆

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