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CXSD6281N同步Buck-PWM和线性控制器同步Buck-PWM和线性控制器以及监控和保护功带欠压保护的外部N沟道MOSFET
发表时间:2020-04-21浏览次数:141
CXSD6281N同步Buck-PWM和线性控制器同步Buck-PWM和线性控制器以及监控和保护功带欠压保护的外部N沟道MOSFET
 

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1.产品概述       2.产品特点     aqt嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)aqt嘉泰姆

5.产品封装       6.电路原理图  aqt嘉泰姆

7.相关产品aqt嘉泰姆

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The CXSD6281N integrates synchronous buck PWM and linear controller, as well as monitoring and protection functions into a single package. The synchronous PWM controller drives dual N-channel MOSFETs, which provides one controlled power output with under-voltage and overcurrent protections. Linear controller drives an external N-channel MOSFET with under-voltage protection. The CXSD6281N provides excellent regulation for output load variation. An internal 0.8V temperature-compensated reference voltage is designed to meet the requirement of low output voltage applications. The switching frequency is adjustable from 150kHz to 1000kHz. The CXSD6281N with excellent protection functions: POR, OCP and UVP. The Power-On-Reset (POR) circuit can monitor VCC12 supply voltage exceeds its threshold voltage while the controller is running, and a built-in digital soft-start provides both outputs with controlled rising voltage. The Over-Current Protection (OCP) monitors the output current by using the voltage drop across the lower MOSFET’s RDS(ON), comparing with internal VOCP (0.25V), eliminating the need for a current sensing resister. When the output current reaches the trip point, the controller will shutdown the IC directly, and latch the converter’s output. The Under-Voltage Protection (UVP) monitors the voltages of FB and FBL pins for shortcircuit protection. When the VFB or VFBL is less than 50% of VREF, the controller will shutdown the IC directly

   产品特点 返回TOPaqt嘉泰姆


· Provided Two Regulated Voltages aqt嘉泰姆

- Synchronous Buck Converter aqt嘉泰姆

- Linear Regulator aqt嘉泰姆

· Single 12V Power Supply Required aqt嘉泰姆

· Excellent Both Output Voltage Regulation aqt嘉泰姆

- 0.8V Internal Reference aqt嘉泰姆

- ±1% Over Line Voltage and Temperature aqt嘉泰姆

· Integrated Soft-Start for PWM and Linear Outputs aqt嘉泰姆

· Programmable Frequency Range from 150kHz to 1000kHz aqt嘉泰姆

· Voltage Mode PWM Control Design and Up to 89% (Typ.) Duty Cycle aqt嘉泰姆

· Under-Voltage Protection for PWM and Linear Output aqt嘉泰姆

· Over-Current Protection for PWM Output aqt嘉泰姆

- Sense Low-Side MOSFET’s RDS(ON) aqt嘉泰姆

· SOP-14, QSOP-16 and QFN4x4-16 packages aqt嘉泰姆

· Lead Free and Green Devices Available (RoHS Compliant)aqt嘉泰姆

   应用范围 返回TOPaqt嘉泰姆


Graphic Cardsaqt嘉泰姆

   技术规格书(产品PDF) 返回TOP aqt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aqt嘉泰姆

 QQ截图20160419174301.jpgaqt嘉泰姆

产品封装图 返回TOPaqt嘉泰姆


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