CXSD62117双通道电压模式和同步PWM控制器驱动双N通道mosfet两个通道均采用180度相移

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发表时间：2020-04-24浏览次数：303

CXSD62117双通道电压模式和同步PWM控制器驱动双N通道mosfet两个通道均采用180度相移

目录Opd嘉泰姆

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

一,产品概述(General Description) Opd嘉泰姆
The CXSD62117 is a dual channel voltage mode and syn-chronousOpd嘉泰姆
PWM controller which drives dual N-channel MOSFETs. The two channelsOpd嘉泰姆
are operated with 180 de-gree phase shift.The device integrates all of theOpd嘉泰姆
control, monitoring, and protecting functions into a single package; providesOpd嘉泰姆
two controlled power output with over-voltage, over-temperature, andOpd嘉泰姆
over-current protections.Opd嘉泰姆
The CXSD62117 provides excellent regulation for output load variation.Opd嘉泰姆
The internal 1.0V temperature-compen- sated reference voltage providesOpd嘉泰姆
high accuracy of 0.8% over line and temperature. The device includes aOpd嘉泰姆
50kHz free-running triangle-wave oscillator that is adjustable from 50kHzOpd嘉泰姆
to 400kHz.The CXSD62117 has been equipped with excellent pro-tectionOpd嘉泰姆
functions: POR, OCP, UVP, and OVP protections.The Power-On-Reset (POR)Opd嘉泰姆
circuit can monitor the VCC and OCSET voltage to make sure the supplyOpd嘉泰姆
voltage ex-ceeds their threshold voltage while the controller is running. TheOpd嘉泰姆
Over-Current Protection (OCP) monitors the output current by using theOpd嘉泰姆
voltage drop across the high side MOSFET’s RDS(ON). When the outputOpd嘉泰姆
current reaches the trip point, the controller will be latched. Under-VoltageOpd嘉泰姆

Protection (UVP) and Over-Voltage Protection (OVP) moni-tor the FBOpd嘉泰姆
voltage to protect CXSD62117 from burnout when output voltage isOpd嘉泰姆
under 50% or over 120% of normal out-put voltage. The CXSD62117Opd嘉泰姆
is available in SOP-20 package.Opd嘉泰姆

二.产品特点(Features)Opd嘉泰姆
Single 12V Power Supply RequiredOpd嘉泰姆
Excellent Output Voltage RegulationOpd嘉泰姆
- 1.0V±0.8% Internal Reference Over Line and TemperatureOpd嘉泰姆
Simple Single Loop Control DesignOpd嘉泰姆
- Voltage Mode PWM Control 0~100% Duty RatioOpd嘉泰姆
Programmable Frequency Range from 50kHz toOpd嘉泰姆
400kHz (Constant 50kHz when Floating)Opd嘉泰姆
Integrated Soft-Start and Soft-Off (Patent Pending)Opd嘉泰姆
Support Pre-Biased Power-OnOpd嘉泰姆
Both Channel with 180o Phase ShiftOpd嘉泰姆
Integrated Boot-Strap DiodeOpd嘉泰姆
Over-Current ProtectionOpd嘉泰姆
- Sense High Side MOSFET’s RDS(ON)Opd嘉泰姆
120% Over-Voltage ProtectionOpd嘉泰姆
50% Under-Voltage ProtectionOpd嘉泰姆
Over-Temperature ProtectionOpd嘉泰姆
Available in SOP-20 PackageOpd嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)Opd嘉泰姆
三,应用范围 (Applications)Opd嘉泰姆
SMPSOpd嘉泰姆

四.下载产品资料PDF文档 Opd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！Opd嘉泰姆

QQ截图20160419174301.jpg Opd嘉泰姆

Opd嘉泰姆

五,产品封装图 (Package)Opd嘉泰姆

Opd嘉泰姆

六.电路原理图Opd嘉泰姆

Opd嘉泰姆

七,功能概述Opd嘉泰姆

Layout ConsiderationOpd嘉泰姆
In any high switching frequency converter, a correct lay-out is important to ensure proper operation of theOpd嘉泰姆
regulator. With power devices switching at 200kHz, the resulting current transient will cause voltage spike across the interconnecting impedance and parasitic circuit elements. As an example, consider the turn-off transition of the PWM MOSFET. Before turn-off, the MOSFET is car-rying the full load current. During turn-off, current stops flowing in the MOSFET and is free-wheeling by the lower MOSFET and parasitic diode. Any parasitic inductance of the circuit generates a large voltage spike during the switching interval. In general, using short and wide printed circuit traces should minimize interconnecting imped- ances and the magnitude of voltage spike. And signal and power grounds are to be kept separating till com-bined using the ground plane construction or single point grounding. Figure 8. illustrates the layout, with bold linesOpd嘉泰姆
Layout Consideration (Cont.)Opd嘉泰姆

indicating high current paths; these traces must be short and wide. Components along the bold lines should beOpd嘉泰姆

placed lose together. Below is a checklist for your layout:- Keep the switching nodes (UGATE, LGATE, and PHASE)away from sensitive small signal nodes since these nodes are fast moving signals. Therefore, keep tracesOpd嘉泰姆
to these nodes as short as possible.Opd嘉泰姆
- The traces from the gate drivers to the MOSFETs (UGATEand LGATE) should be short and wide.Opd嘉泰姆

- Place the source of the high-side MOSFET and the drainof the low-side MOSFET as close as possible. Minimiz-ing the impedance with wide layout plane between the two pads reduces the voltage bounce of the node.Opd嘉泰姆

- Decoupling capacitor, compensation component, the resistor dividers, and boot capacitors should be closeOpd嘉泰姆

their pins. (For example, place the decoupling ceramic capacitor near the drain of the high-side MOSFET asOpd嘉泰姆
close as possible. The bulk capacitors are also placed near the drain).Opd嘉泰姆
- The input capacitor should be near the drain of the up-per MOSFET; the output capacitor should be near theOpd嘉泰姆
loads. The input capacitor GND should be close to the lower MOSFET GND.Opd嘉泰姆
- The drain of the MOSFETs (VIN and PHASE nodes)should be a large plane for heat sinking.Opd嘉泰姆
- The ROCSET resistance should be placed near the IC as close as possible.Opd嘉泰姆
- The decoupling capacitor for VCC should be placed near the VCC and GND. CBOOT should be connected asOpd嘉泰姆
close to the BOOT and PHASE pins as possible. Opd嘉泰姆

八,相关产品 更多同类产品...... Opd嘉泰姆

Switching Regulator > Buck ControllerOpd嘉泰姆
Part_No Opd嘉泰姆	Package Opd嘉泰姆	ArchiOpd嘉泰姆 tectuOpd嘉泰姆	PhaseOpd嘉泰姆	No.ofOpd嘉泰姆 PWMOpd嘉泰姆 OutputOpd嘉泰姆	Output Opd嘉泰姆 CurrentOpd嘉泰姆 (A) Opd嘉泰姆	InputOpd嘉泰姆 Voltage (V) Opd嘉泰姆		ReferenceOpd嘉泰姆 VoltageOpd嘉泰姆 (V) Opd嘉泰姆	Bias Opd嘉泰姆 VoltageOpd嘉泰姆 (V) Opd嘉泰姆	QuiescentOpd嘉泰姆 CurrentOpd嘉泰姆 (uA) Opd嘉泰姆
Part_No Opd嘉泰姆	Package Opd嘉泰姆	ArchiOpd嘉泰姆 tectuOpd嘉泰姆	PhaseOpd嘉泰姆	No.ofOpd嘉泰姆 PWMOpd嘉泰姆 OutputOpd嘉泰姆	Output Opd嘉泰姆 CurrentOpd嘉泰姆 (A) Opd嘉泰姆	minOpd嘉泰姆	maxOpd嘉泰姆	ReferenceOpd嘉泰姆 VoltageOpd嘉泰姆 (V) Opd嘉泰姆	Bias Opd嘉泰姆 VoltageOpd嘉泰姆 (V) Opd嘉泰姆	QuiescentOpd嘉泰姆 CurrentOpd嘉泰姆 (uA) Opd嘉泰姆
CXSD6273Opd嘉泰姆	SOP-14Opd嘉泰姆 QSOP-16Opd嘉泰姆 QFN4x4-16Opd嘉泰姆	VM Opd嘉泰姆	1 Opd嘉泰姆	1 Opd嘉泰姆	30Opd嘉泰姆	2.9 Opd嘉泰姆	13.2Opd嘉泰姆	0.9Opd嘉泰姆	12 Opd嘉泰姆	8000Opd嘉泰姆
CXSD6274Opd嘉泰姆	SOP-8Opd嘉泰姆	VM Opd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	20Opd嘉泰姆	2.9 Opd嘉泰姆	13.2 Opd嘉泰姆	0.8Opd嘉泰姆	12Opd嘉泰姆	5000Opd嘉泰姆
CXSD6274COpd嘉泰姆	SOP-8Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	20Opd嘉泰姆	2.9Opd嘉泰姆	13.2Opd嘉泰姆	0.8Opd嘉泰姆	12Opd嘉泰姆	5000Opd嘉泰姆
CXSD6275Opd嘉泰姆	QFN4x4-24Opd嘉泰姆	VMOpd嘉泰姆	2Opd嘉泰姆	1Opd嘉泰姆	60Opd嘉泰姆	3.1Opd嘉泰姆	13.2Opd嘉泰姆	0.6Opd嘉泰姆	12Opd嘉泰姆	5000Opd嘉泰姆
CXSD6276Opd嘉泰姆	SOP-8Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	20Opd嘉泰姆	2.2Opd嘉泰姆	13.2Opd嘉泰姆	0.8Opd嘉泰姆	5~12Opd嘉泰姆	2100Opd嘉泰姆
CXSD6276AOpd嘉泰姆	SOP-8Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	20Opd嘉泰姆	2.2Opd嘉泰姆	13.2Opd嘉泰姆	0.8Opd嘉泰姆	5~12Opd嘉泰姆	2100Opd嘉泰姆
CXSD6277/A/BOpd嘉泰姆	SOP8\|TSSOP8Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	5Opd嘉泰姆	5Opd嘉泰姆	13.2Opd嘉泰姆	1.25\|0.8Opd嘉泰姆	5~12Opd嘉泰姆	3000Opd嘉泰姆
CXSD6278Opd嘉泰姆	SOP-8Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	10Opd嘉泰姆	3.3Opd嘉泰姆	5.5Opd嘉泰姆	0.8Opd嘉泰姆	5Opd嘉泰姆	2100Opd嘉泰姆
CXSD6279BOpd嘉泰姆	SOP-14Opd嘉泰姆	VM Opd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	10Opd嘉泰姆	5Opd嘉泰姆	13.2Opd嘉泰姆	0.8Opd嘉泰姆	12Opd嘉泰姆	2000Opd嘉泰姆
CXSD6280Opd嘉泰姆	TSSOP-24Opd嘉泰姆 \|QFN5x5-32Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	2Opd嘉泰姆	20Opd嘉泰姆	5Opd嘉泰姆	13.2Opd嘉泰姆	0.6Opd嘉泰姆	5~12Opd嘉泰姆	4000Opd嘉泰姆
CXSD6281NOpd嘉泰姆	SOP14Opd嘉泰姆 QSOP16Opd嘉泰姆 QFN-16Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	30Opd嘉泰姆	2.9Opd嘉泰姆	13.2Opd嘉泰姆	0.9Opd嘉泰姆	12Opd嘉泰姆	4000Opd嘉泰姆
CXSD6282Opd嘉泰姆	SOP-14Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	30Opd嘉泰姆	2.2Opd嘉泰姆	13.2Opd嘉泰姆	0.6Opd嘉泰姆	12Opd嘉泰姆	5000Opd嘉泰姆
CXSD6282AOpd嘉泰姆	SOP-14Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	30Opd嘉泰姆	2.2Opd嘉泰姆	13.2Opd嘉泰姆	0.6Opd嘉泰姆	12Opd嘉泰姆	5000Opd嘉泰姆
CXSD6283Opd嘉泰姆	SOP-14Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	25Opd嘉泰姆	2.2Opd嘉泰姆	13.2Opd嘉泰姆	0.8Opd嘉泰姆	12Opd嘉泰姆	5000Opd嘉泰姆
CXSD6284/AOpd嘉泰姆	LQFP7x7 48Opd嘉泰姆 TQFN7x7-48Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	6Opd嘉泰姆	0.015Opd嘉泰姆	1.4Opd嘉泰姆	6.5Opd嘉泰姆	-Opd嘉泰姆	5Opd嘉泰姆	1800Opd嘉泰姆
CXSD6285Opd嘉泰姆	TSSOP-24POpd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	2Opd嘉泰姆	20Opd嘉泰姆	2.97Opd嘉泰姆	5.5Opd嘉泰姆	0.8Opd嘉泰姆	5~12Opd嘉泰姆	5000Opd嘉泰姆
CXSD6286Opd嘉泰姆	SOP-14Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	10Opd嘉泰姆	5Opd嘉泰姆	13.2Opd嘉泰姆	0.8Opd嘉泰姆	12Opd嘉泰姆	3000Opd嘉泰姆
CXSD6287Opd嘉泰姆	SOP-8-P\|DIP-8Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	1Opd嘉泰姆	30Opd嘉泰姆	2.9Opd嘉泰姆	13.2Opd嘉泰姆	1.2Opd嘉泰姆	12Opd嘉泰姆	3000Opd嘉泰姆
CXSD6288Opd嘉泰姆	SSOP28Opd嘉泰姆 QFN4x4-24Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	2Opd嘉泰姆	20Opd嘉泰姆	5Opd嘉泰姆	24Opd嘉泰姆	0.9Opd嘉泰姆	5Opd嘉泰姆	1200Opd嘉泰姆
CXSD6289Opd嘉泰姆	SOP-20Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	2Opd嘉泰姆	20Opd嘉泰姆	2.2Opd嘉泰姆	13.2Opd嘉泰姆	0.6Opd嘉泰姆	5~12Opd嘉泰姆	4000Opd嘉泰姆
CXSD6290Opd嘉泰姆	SOP8\|DFN3x3-10Opd嘉泰姆	VMOpd嘉泰姆	1Opd嘉泰姆	2Opd嘉泰姆	-Opd嘉泰姆	-Opd嘉泰姆

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下一篇：CXSD62118单相恒定时间同步的PWM控制器驱动N通道mosfet低压芯片组RAM电源

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