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：78

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

Protection (UVP) and Over-Voltage Protection (OVP) moni-tor the FBNva嘉泰姆
voltage to protect CXSD62117 from burnout when output voltage isNva嘉泰姆
under 50% or over 120% of normal out-put voltage. The CXSD62117Nva嘉泰姆
is available in SOP-20 package.Nva嘉泰姆

二.产品特点(Features)Nva嘉泰姆
Single 12V Power Supply RequiredNva嘉泰姆
Excellent Output Voltage RegulationNva嘉泰姆
- 1.0V±0.8% Internal Reference Over Line and TemperatureNva嘉泰姆
Simple Single Loop Control DesignNva嘉泰姆
- Voltage Mode PWM Control 0~100% Duty RatioNva嘉泰姆
Programmable Frequency Range from 50kHz toNva嘉泰姆
400kHz (Constant 50kHz when Floating)Nva嘉泰姆
Integrated Soft-Start and Soft-Off (Patent Pending)Nva嘉泰姆
Support Pre-Biased Power-OnNva嘉泰姆
Both Channel with 180o Phase ShiftNva嘉泰姆
Integrated Boot-Strap DiodeNva嘉泰姆
Over-Current ProtectionNva嘉泰姆
- Sense High Side MOSFET’s RDS(ON)Nva嘉泰姆
120% Over-Voltage ProtectionNva嘉泰姆
50% Under-Voltage ProtectionNva嘉泰姆
Over-Temperature ProtectionNva嘉泰姆
Available in SOP-20 PackageNva嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)Nva嘉泰姆
三,应用范围 (Applications)Nva嘉泰姆
SMPSNva嘉泰姆

四.下载产品资料PDF文档 Nva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！Nva嘉泰姆

QQ截图20160419174301.jpg Nva嘉泰姆

Nva嘉泰姆

五,产品封装图 (Package)Nva嘉泰姆

Nva嘉泰姆

六.电路原理图Nva嘉泰姆

Nva嘉泰姆

七,功能概述Nva嘉泰姆

Layout ConsiderationNva嘉泰姆
In any high switching frequency converter, a correct lay-out is important to ensure proper operation of theNva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 linesNva嘉泰姆
Layout Consideration (Cont.)Nva嘉泰姆

indicating high current paths; these traces must be short and wide. Components along the bold lines should beNva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 tracesNva嘉泰姆
to these nodes as short as possible.Nva嘉泰姆
- The traces from the gate drivers to the MOSFETs (UGATEand LGATE) should be short and wide.Nva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.Nva嘉泰姆

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

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

八,相关产品 更多同类产品...... Nva嘉泰姆

Switching Regulator > Buck ControllerNva嘉泰姆
Part_No Nva嘉泰姆	Package Nva嘉泰姆	ArchiNva嘉泰姆 tectuNva嘉泰姆	PhaseNva嘉泰姆	No.ofNva嘉泰姆 PWMNva嘉泰姆 OutputNva嘉泰姆	Output Nva嘉泰姆 CurrentNva嘉泰姆 (A) Nva嘉泰姆	InputNva嘉泰姆 Voltage (V) Nva嘉泰姆		ReferenceNva嘉泰姆 VoltageNva嘉泰姆 (V) Nva嘉泰姆	Bias Nva嘉泰姆 VoltageNva嘉泰姆 (V) Nva嘉泰姆	QuiescentNva嘉泰姆 CurrentNva嘉泰姆 (uA) Nva嘉泰姆
Part_No Nva嘉泰姆	Package Nva嘉泰姆	ArchiNva嘉泰姆 tectuNva嘉泰姆	PhaseNva嘉泰姆	No.ofNva嘉泰姆 PWMNva嘉泰姆 OutputNva嘉泰姆	Output Nva嘉泰姆 CurrentNva嘉泰姆 (A) Nva嘉泰姆	minNva嘉泰姆	maxNva嘉泰姆	ReferenceNva嘉泰姆 VoltageNva嘉泰姆 (V) Nva嘉泰姆	Bias Nva嘉泰姆 VoltageNva嘉泰姆 (V) Nva嘉泰姆	QuiescentNva嘉泰姆 CurrentNva嘉泰姆 (uA) Nva嘉泰姆
CXSD6273Nva嘉泰姆	SOP-14Nva嘉泰姆 QSOP-16Nva嘉泰姆 QFN4x4-16Nva嘉泰姆	VM Nva嘉泰姆	1 Nva嘉泰姆	1 Nva嘉泰姆	30Nva嘉泰姆	2.9 Nva嘉泰姆	13.2Nva嘉泰姆	0.9Nva嘉泰姆	12 Nva嘉泰姆	8000Nva嘉泰姆
CXSD6274Nva嘉泰姆	SOP-8Nva嘉泰姆	VM Nva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	20Nva嘉泰姆	2.9 Nva嘉泰姆	13.2 Nva嘉泰姆	0.8Nva嘉泰姆	12Nva嘉泰姆	5000Nva嘉泰姆
CXSD6274CNva嘉泰姆	SOP-8Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	20Nva嘉泰姆	2.9Nva嘉泰姆	13.2Nva嘉泰姆	0.8Nva嘉泰姆	12Nva嘉泰姆	5000Nva嘉泰姆
CXSD6275Nva嘉泰姆	QFN4x4-24Nva嘉泰姆	VMNva嘉泰姆	2Nva嘉泰姆	1Nva嘉泰姆	60Nva嘉泰姆	3.1Nva嘉泰姆	13.2Nva嘉泰姆	0.6Nva嘉泰姆	12Nva嘉泰姆	5000Nva嘉泰姆
CXSD6276Nva嘉泰姆	SOP-8Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	20Nva嘉泰姆	2.2Nva嘉泰姆	13.2Nva嘉泰姆	0.8Nva嘉泰姆	5~12Nva嘉泰姆	2100Nva嘉泰姆
CXSD6276ANva嘉泰姆	SOP-8Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	20Nva嘉泰姆	2.2Nva嘉泰姆	13.2Nva嘉泰姆	0.8Nva嘉泰姆	5~12Nva嘉泰姆	2100Nva嘉泰姆
CXSD6277/A/BNva嘉泰姆	SOP8\|TSSOP8Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	5Nva嘉泰姆	5Nva嘉泰姆	13.2Nva嘉泰姆	1.25\|0.8Nva嘉泰姆	5~12Nva嘉泰姆	3000Nva嘉泰姆
CXSD6278Nva嘉泰姆	SOP-8Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	10Nva嘉泰姆	3.3Nva嘉泰姆	5.5Nva嘉泰姆	0.8Nva嘉泰姆	5Nva嘉泰姆	2100Nva嘉泰姆
CXSD6279BNva嘉泰姆	SOP-14Nva嘉泰姆	VM Nva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	10Nva嘉泰姆	5Nva嘉泰姆	13.2Nva嘉泰姆	0.8Nva嘉泰姆	12Nva嘉泰姆	2000Nva嘉泰姆
CXSD6280Nva嘉泰姆	TSSOP-24Nva嘉泰姆 \|QFN5x5-32Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	2Nva嘉泰姆	20Nva嘉泰姆	5Nva嘉泰姆	13.2Nva嘉泰姆	0.6Nva嘉泰姆	5~12Nva嘉泰姆	4000Nva嘉泰姆
CXSD6281NNva嘉泰姆	SOP14Nva嘉泰姆 QSOP16Nva嘉泰姆 QFN-16Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	30Nva嘉泰姆	2.9Nva嘉泰姆	13.2Nva嘉泰姆	0.9Nva嘉泰姆	12Nva嘉泰姆	4000Nva嘉泰姆
CXSD6282Nva嘉泰姆	SOP-14Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	30Nva嘉泰姆	2.2Nva嘉泰姆	13.2Nva嘉泰姆	0.6Nva嘉泰姆	12Nva嘉泰姆	5000Nva嘉泰姆
CXSD6282ANva嘉泰姆	SOP-14Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	30Nva嘉泰姆	2.2Nva嘉泰姆	13.2Nva嘉泰姆	0.6Nva嘉泰姆	12Nva嘉泰姆	5000Nva嘉泰姆
CXSD6283Nva嘉泰姆	SOP-14Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	25Nva嘉泰姆	2.2Nva嘉泰姆	13.2Nva嘉泰姆	0.8Nva嘉泰姆	12Nva嘉泰姆	5000Nva嘉泰姆
CXSD6284/ANva嘉泰姆	LQFP7x7 48Nva嘉泰姆 TQFN7x7-48Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	6Nva嘉泰姆	0.015Nva嘉泰姆	1.4Nva嘉泰姆	6.5Nva嘉泰姆	-Nva嘉泰姆	5Nva嘉泰姆	1800Nva嘉泰姆
CXSD6285Nva嘉泰姆	TSSOP-24PNva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	2Nva嘉泰姆	20Nva嘉泰姆	2.97Nva嘉泰姆	5.5Nva嘉泰姆	0.8Nva嘉泰姆	5~12Nva嘉泰姆	5000Nva嘉泰姆
CXSD6286Nva嘉泰姆	SOP-14Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	10Nva嘉泰姆	5Nva嘉泰姆	13.2Nva嘉泰姆	0.8Nva嘉泰姆	12Nva嘉泰姆	3000Nva嘉泰姆
CXSD6287Nva嘉泰姆	SOP-8-P\|DIP-8Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	1Nva嘉泰姆	30Nva嘉泰姆	2.9Nva嘉泰姆	13.2Nva嘉泰姆	1.2Nva嘉泰姆	12Nva嘉泰姆	3000Nva嘉泰姆
CXSD6288Nva嘉泰姆	SSOP28Nva嘉泰姆 QFN4x4-24Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	2Nva嘉泰姆	20Nva嘉泰姆	5Nva嘉泰姆	24Nva嘉泰姆	0.9Nva嘉泰姆	5Nva嘉泰姆	1200Nva嘉泰姆
CXSD6289Nva嘉泰姆	SOP-20Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	2Nva嘉泰姆	20Nva嘉泰姆	2.2Nva嘉泰姆	13.2Nva嘉泰姆	0.6Nva嘉泰姆	5~12Nva嘉泰姆	4000Nva嘉泰姆
CXSD6290Nva嘉泰姆	SOP8\|DFN3x3-10Nva嘉泰姆	VMNva嘉泰姆	1Nva嘉泰姆	2Nva嘉泰姆	-Nva嘉泰姆	-Nva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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