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首页 > 产品中心 > LED驱动电路 > AC/DC转换型高压LED驱动芯片 > 中小功率控制芯片 >CXAC431A CXAC431B三端可调并联调节器通特性较低的温度系数输出阻抗开关电源充电器和其他可调稳压器可编程精确输出电压2.5V至36V电容负载下的高稳定性
CXAC431A CXAC431B三端可调并联调节器通特性较低的温度系数输出阻抗开关电源充电器和其他可调稳压器可编程精确输出电压2.5V至36V电容负载下的高稳定性
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CXAC431A CXAC431B系列集成电路是三端可调并联调节器,在整个工作范围内保证热稳定性。这些集成电路具有很强的导通特性、较低的温度系数和较低的输出阻抗,是开关电源、充电器和其他可调稳压器等应用中齐纳二极管的理想替代品。CXAC431电压类型为40V,输出电压可设定为VREF(2.5V)与对应的最大阴极电压之间的任何值。CXAC431A精度基准提供两种带隙公差:0.4%和0.8%
●可编程精确输出电压2.5V至36V
●非常精确的参考电压:典型的0.15%
●电容负载下的高稳定性
●低温偏差:典型4.5mV
●低等效全量程温度系数,典型值为20PPM/℃
●低动态输出电阻:典型0.2Ω
●汇电流容量从1毫安到100毫安
●低输出噪声
●宽工作范围-40至125摄氏度

CXAC431A CXAC431B三端可调并联调节器通特性较低的温度系数输出阻抗开关电源充电器和其他可调稳压器可编程精确输出电压2.5V至36V电容负载下的高稳定性
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   产品概述 返回TOPqQZ嘉泰姆


The CXAC431A CXAC431B series ICs are three-terminal adjustable shunt regulators with guaranteed thermal stability over a full operation range. These ICs feature sharp turn-on characteristics, low temperature coefficient and low output impedance, which make them ideal substitutes for Zener diodes in applications such as switching power supply, charger and other adjustable regulators. The CXAC431A voltage type is 40V. The output voltage can be set to any value between VREF(2.5V) and the corresponding maximum cathode voltage. The CXAC431A precision reference is offered in two band gap tolerance: 0.4% and 0.8%

   产品特点 返回TOPqQZ嘉泰姆


●Programmable Precise Output Voltage from 2.5V to 36V qQZ嘉泰姆

●Very Accurate Reference Voltage: Typical 0.15% qQZ嘉泰姆

●High Stability under Capacitive Load qQZ嘉泰姆

●Low Temperature Deviation: Typical 4.5mV qQZ嘉泰姆

● Low Equivalent Full-range Temperature Coefficient with 20PPM/℃ Typical qQZ嘉泰姆

●Low Dynamic Output Resistance: Typical 0.2Ω qQZ嘉泰姆

● Sink Current Capacity from 1mA to 100 mA qQZ嘉泰姆

● Low Output Noise qQZ嘉泰姆

● Wide Operating Range of -40 to 125℃ qQZ嘉泰姆

●TO-92, SOT23-3 packageqQZ嘉泰姆

   应用范围 返回TOPqQZ嘉泰姆


● Charger qQZ嘉泰姆

●Voltage Adapter qQZ嘉泰姆

●Switching Power Supply qQZ嘉泰姆

●Graphic Card qQZ嘉泰姆

●Precision Voltage ReferenceqQZ嘉泰姆

   技术规格书(产品PDF) 返回TOP qQZ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!qQZ嘉泰姆

 QQ截图20160419174301.jpgqQZ嘉泰姆

产品封装图 返回TOPqQZ嘉泰姆


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电路原理图 返回TOPqQZ嘉泰姆


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AC/DC   Converter Supply(AC/DC转换器配套芯片)
Part Number VKA IKA VREF Voltage Tolerance  IKA(MIN) Package
CXAC431A VREFto 36V 1 to 100mA 2.5V ±0.4% 400uA TO92/ SOT23-3
CXAC431B VREF to 36V 1 to 100mA 2.5V ±1% 400uA TO92/ SOT23-3
Part Number Vcc Vsense VREF Voltage Tolerance  Supply Current Package
CXAC8520A 12V 200mv 1.21V ±1% 1.2mA SOT23-6
CXAC8520B 18V 200mv 1.21V ±1% 1.2mA SOT23-6
CXAC8520C 18V 70mv 1.21V ±1% 1.2mA SOT23-6
Part Number Viso Vcotl CTR Voltage Tolerance  IDD Package
CXAC8521-5 5000V 5.0V 50-600% ±3% 50mA DIP4