CXSD62105

CXSD62105双降压、恒定时间、同步PWM控制器(为每个通道驱动双通道mosfet)和两个低损耗稳压器以及各种保护。PWM控制器降低电池的高电压,以产生低电压用于NB应用PWM1和PWM2的输出可以通过在VOUTx和GND之间设置电阻分压器从2V调整到5.5V。

电荷泵CXSD62105笔记本电脑的系统电源脉宽调制控制器集成了双降压恒时同步的脉宽调制控制器

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目录

1.产品概述       2.产品特点     2BU嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)2BU嘉泰姆

5.产品封装       6.电路原理图  2BU嘉泰姆

7.相关产品2BU嘉泰姆

   产品概述 返回TOP2BU嘉泰姆


The CXSD62105 integrates dual step-down, constant-ontime, synchronous PWM controllers (that drives dual Nchannel MOSFETs for each channel) and two low dropout regulators as well as various protections into a chip. The PWM controllers step down high voltage of a battery to generate low-voltage for NB applications. The output of PWM1 and PWM2 can be adjusted from 2V to 5.5V by setting a resistive voltage-divider from VOUTx to GND. The linear regulators provide 5V and 3.3V output for standby power supply. The linear regulators provide up to 100mA output current. When the PWMx output voltage is higher than LDOx bypass threshold, the related LDOx regulator is shut off and its output is connected to VOUTx by internal switchover MOSFET. It can save power dissipation. The charge pump circuit with 270kHz clock driver uses VOUT1 as its power supply to generate approximately 15V DC voltage. The CXSD62105 provides excellent transient response and accurate DC output voltage in either PFM or PWM Mode. In Pulse-Frequency Mode (PFM), the CXSD62105 provides very high efficiency over light to heavy loads with loadingmodulated switching frequencies. The Forced-PWM Mode works nearly at constant frequency for low-noise requirements. The unique ultrasonic mode maintains the switching frequency above 25KHz, which eliminatesnoise in audio applications. The CXSD62105 is equipped with accurate sourcing and current-limit, output under-voltage output over-voltage protections, being perfect for NB applications. A 1.7ms (typ.) digital soft-start can reduce the start-up current. A soft-stop function actively discharges the output capacitors by the discharge device. The CXSD62105 has individual enable controls for each PWM channels and LDOs. Pulling both ENILIM1/2 pin and ENLDO pin low shuts down the whole chip with low quiescent current close to zero. The CXSD62105 is available in a TQFN4x4-24A package.

   产品特点 返回TOP2BU嘉泰姆


· Wide Input voltage Range from 6V to 25V 2BU嘉泰姆

· Provide 5 Independent Outputs with ±1.5% Accuracy Over-Temperature 2BU嘉泰姆

- PWM1 Controller with Adjustable (2V to 5.5V) Output 2BU嘉泰姆

- PWM2 Controller with Adjustable (2V to 5.5V) Output 2BU嘉泰姆

- 100mA Low Dropout Regulator(LDO5) with Fixed 5V Output 2BU嘉泰姆

- 100mA Low Dropout Regulator(LDO3) with Fixed 3.3V Output 2BU嘉泰姆

- 270kHz Clock Signal for 15V Charge Pump (Used VOUT1 as Its Power Supply) 2BU嘉泰姆

· Excellent Line/Load Regulations about ±1.5%OverTemperature Range 2BU嘉泰姆

· ±1%, (±1.5%, 50mA) 2.0V Reference Voltage Output 2BU嘉泰姆

· Built-In POR Control Scheme Implemented 2BU嘉泰姆

· Selectable Forced-PWM or Automatic PFM/PWM (with Selectable Ultrasonic Operation) 2BU嘉泰姆

· Constant-On-Time ControlSchemewith Frequency Compensation for PWM Mode 2BU嘉泰姆

· Selectable Switching Frequency in PWM Mode 2BU嘉泰姆

· Built-in DigitalSoft-StartforPWM Outputs andSoftStop for PWM Outputs and LDO Outputs 2BU嘉泰姆

· Integrated Bootstrap Forward P-CH MOSFET 2BU嘉泰姆

· High Efficiency over Light to Full Load Range (PWMs) 2BU嘉泰姆

· Built-in Power Good Indicators (PWMs) 2BU嘉泰姆

· Independent Enable Inputs (PWMs, LDO) 2BU嘉泰姆

· 70% Under-Voltage and 125% Over-Voltage Protections (PWM) 2BU嘉泰姆

· Adjustable Current-Limit Protection (PWMs) 2BU嘉泰姆

- Using Sense Low-Side MOSFET’s RDS(ON) 2BU嘉泰姆

· Over-Temperature Protection 2BU嘉泰姆

· 4mmx4mm Thin QFN-24 (TQFN4x4-24A) package 2BU嘉泰姆

· Lead Free and Green Device Available (RoHS Compliant)2BU嘉泰姆

   应用范围 返回TOP2BU嘉泰姆


· Notebook and Sub-Notebook Computers 2BU嘉泰姆

· Portable Devices 2BU嘉泰姆

· DDR1, DDR2, and DDR3 Power Supplies 2BU嘉泰姆

· 3-Cell and 4-Cell Li+ Battery-Powered Devices 2BU嘉泰姆

· Graphic Cards 2BU嘉泰姆

· Game Consoles 2BU嘉泰姆

· Telecommunications2BU嘉泰姆

   技术规格书(产品PDF) 返回TOP 2BU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2BU嘉泰姆

 QQ截图20160419174301.jpg2BU嘉泰姆

产品封装图 返回TOP2BU嘉泰姆


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电路原理图 返回TOP2BU嘉泰姆


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0.52BU嘉泰姆

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CXSD62113|C2BU嘉泰姆

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0.852BU嘉泰姆

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282BU嘉泰姆

0.752BU嘉泰姆

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1802BU嘉泰姆

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