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：123

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y63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) y63嘉泰姆
The CXSD62117 is a dual channel voltage mode and syn-chronousy63嘉泰姆
PWM controller which drives dual N-channel MOSFETs. The two channelsy63嘉泰姆
are operated with 180 de-gree phase shift.The device integrates all of they63嘉泰姆
control, monitoring, and protecting functions into a single package; providesy63嘉泰姆
two controlled power output with over-voltage, over-temperature, andy63嘉泰姆
over-current protections.y63嘉泰姆
The CXSD62117 provides excellent regulation for output load variation.y63嘉泰姆
The internal 1.0V temperature-compen- sated reference voltage providesy63嘉泰姆
high accuracy of 0.8% over line and temperature. The device includes ay63嘉泰姆
50kHz free-running triangle-wave oscillator that is adjustable from 50kHzy63嘉泰姆
to 400kHz.The CXSD62117 has been equipped with excellent pro-tectiony63嘉泰姆
functions: POR, OCP, UVP, and OVP protections.The Power-On-Reset (POR)y63嘉泰姆
circuit can monitor the VCC and OCSET voltage to make sure the supplyy63嘉泰姆
voltage ex-ceeds their threshold voltage while the controller is running. They63嘉泰姆
Over-Current Protection (OCP) monitors the output current by using they63嘉泰姆
voltage drop across the high side MOSFET’s RDS(ON). When the outputy63嘉泰姆
current reaches the trip point, the controller will be latched. Under-Voltagey63嘉泰姆

Protection (UVP) and Over-Voltage Protection (OVP) moni-tor the FBy63嘉泰姆
voltage to protect CXSD62117 from burnout when output voltage isy63嘉泰姆
under 50% or over 120% of normal out-put voltage. The CXSD62117y63嘉泰姆
is available in SOP-20 package.y63嘉泰姆

二.产品特点(Features)y63嘉泰姆
Single 12V Power Supply Requiredy63嘉泰姆
Excellent Output Voltage Regulationy63嘉泰姆
- 1.0V±0.8% Internal Reference Over Line and Temperaturey63嘉泰姆
Simple Single Loop Control Designy63嘉泰姆
- Voltage Mode PWM Control 0~100% Duty Ratioy63嘉泰姆
Programmable Frequency Range from 50kHz toy63嘉泰姆
400kHz (Constant 50kHz when Floating)y63嘉泰姆
Integrated Soft-Start and Soft-Off (Patent Pending)y63嘉泰姆
Support Pre-Biased Power-Ony63嘉泰姆
Both Channel with 180o Phase Shifty63嘉泰姆
Integrated Boot-Strap Diodey63嘉泰姆
Over-Current Protectiony63嘉泰姆
- Sense High Side MOSFET’s RDS(ON)y63嘉泰姆
120% Over-Voltage Protectiony63嘉泰姆
50% Under-Voltage Protectiony63嘉泰姆
Over-Temperature Protectiony63嘉泰姆
Available in SOP-20 Packagey63嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)y63嘉泰姆
三,应用范围 (Applications)y63嘉泰姆
SMPSy63嘉泰姆

四.下载产品资料PDF文档 y63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！y63嘉泰姆

QQ截图20160419174301.jpg y63嘉泰姆

y63嘉泰姆

五,产品封装图 (Package)y63嘉泰姆

y63嘉泰姆

六.电路原理图y63嘉泰姆

y63嘉泰姆

七,功能概述y63嘉泰姆

Layout Considerationy63嘉泰姆
In any high switching frequency converter, a correct lay-out is important to ensure proper operation of they63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 linesy63嘉泰姆
Layout Consideration (Cont.)y63嘉泰姆

indicating high current paths; these traces must be short and wide. Components along the bold lines should bey63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 tracesy63嘉泰姆
to these nodes as short as possible.y63嘉泰姆
- The traces from the gate drivers to the MOSFETs (UGATEand LGATE) should be short and wide.y63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.y63嘉泰姆

- Decoupling capacitor, compensation component, the resistor dividers, and boot capacitors should be closey63嘉泰姆

their pins. (For example, place the decoupling ceramic capacitor near the drain of the high-side MOSFET asy63嘉泰姆
close as possible. The bulk capacitors are also placed near the drain).y63嘉泰姆
- The input capacitor should be near the drain of the up-per MOSFET; the output capacitor should be near they63嘉泰姆
loads. The input capacitor GND should be close to the lower MOSFET GND.y63嘉泰姆
- The drain of the MOSFETs (VIN and PHASE nodes)should be a large plane for heat sinking.y63嘉泰姆
- The ROCSET resistance should be placed near the IC as close as possible.y63嘉泰姆
- The decoupling capacitor for VCC should be placed near the VCC and GND. CBOOT should be connected asy63嘉泰姆
close to the BOOT and PHASE pins as possible. y63嘉泰姆

八,相关产品 更多同类产品...... y63嘉泰姆

Switching Regulator > Buck Controllery63嘉泰姆
Part_No y63嘉泰姆	Package y63嘉泰姆	Archiy63嘉泰姆 tectuy63嘉泰姆	Phasey63嘉泰姆	No.ofy63嘉泰姆 PWMy63嘉泰姆 Outputy63嘉泰姆	Output y63嘉泰姆 Currenty63嘉泰姆 (A) y63嘉泰姆	Inputy63嘉泰姆 Voltage (V) y63嘉泰姆		Referencey63嘉泰姆 Voltagey63嘉泰姆 (V) y63嘉泰姆	Bias y63嘉泰姆 Voltagey63嘉泰姆 (V) y63嘉泰姆	Quiescenty63嘉泰姆 Currenty63嘉泰姆 (uA) y63嘉泰姆
Part_No y63嘉泰姆	Package y63嘉泰姆	Archiy63嘉泰姆 tectuy63嘉泰姆	Phasey63嘉泰姆	No.ofy63嘉泰姆 PWMy63嘉泰姆 Outputy63嘉泰姆	Output y63嘉泰姆 Currenty63嘉泰姆 (A) y63嘉泰姆	miny63嘉泰姆	maxy63嘉泰姆	Referencey63嘉泰姆 Voltagey63嘉泰姆 (V) y63嘉泰姆	Bias y63嘉泰姆 Voltagey63嘉泰姆 (V) y63嘉泰姆	Quiescenty63嘉泰姆 Currenty63嘉泰姆 (uA) y63嘉泰姆
CXSD6273y63嘉泰姆	SOP-14y63嘉泰姆 QSOP-16y63嘉泰姆 QFN4x4-16y63嘉泰姆	VM y63嘉泰姆	1 y63嘉泰姆	1 y63嘉泰姆	30y63嘉泰姆	2.9 y63嘉泰姆	13.2y63嘉泰姆	0.9y63嘉泰姆	12 y63嘉泰姆	8000y63嘉泰姆
CXSD6274y63嘉泰姆	SOP-8y63嘉泰姆	VM y63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	20y63嘉泰姆	2.9 y63嘉泰姆	13.2 y63嘉泰姆	0.8y63嘉泰姆	12y63嘉泰姆	5000y63嘉泰姆
CXSD6274Cy63嘉泰姆	SOP-8y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	20y63嘉泰姆	2.9y63嘉泰姆	13.2y63嘉泰姆	0.8y63嘉泰姆	12y63嘉泰姆	5000y63嘉泰姆
CXSD6275y63嘉泰姆	QFN4x4-24y63嘉泰姆	VMy63嘉泰姆	2y63嘉泰姆	1y63嘉泰姆	60y63嘉泰姆	3.1y63嘉泰姆	13.2y63嘉泰姆	0.6y63嘉泰姆	12y63嘉泰姆	5000y63嘉泰姆
CXSD6276y63嘉泰姆	SOP-8y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	20y63嘉泰姆	2.2y63嘉泰姆	13.2y63嘉泰姆	0.8y63嘉泰姆	5~12y63嘉泰姆	2100y63嘉泰姆
CXSD6276Ay63嘉泰姆	SOP-8y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	20y63嘉泰姆	2.2y63嘉泰姆	13.2y63嘉泰姆	0.8y63嘉泰姆	5~12y63嘉泰姆	2100y63嘉泰姆
CXSD6277/A/By63嘉泰姆	SOP8\|TSSOP8y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	5y63嘉泰姆	5y63嘉泰姆	13.2y63嘉泰姆	1.25\|0.8y63嘉泰姆	5~12y63嘉泰姆	3000y63嘉泰姆
CXSD6278y63嘉泰姆	SOP-8y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	10y63嘉泰姆	3.3y63嘉泰姆	5.5y63嘉泰姆	0.8y63嘉泰姆	5y63嘉泰姆	2100y63嘉泰姆
CXSD6279By63嘉泰姆	SOP-14y63嘉泰姆	VM y63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	10y63嘉泰姆	5y63嘉泰姆	13.2y63嘉泰姆	0.8y63嘉泰姆	12y63嘉泰姆	2000y63嘉泰姆
CXSD6280y63嘉泰姆	TSSOP-24y63嘉泰姆 \|QFN5x5-32y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	2y63嘉泰姆	20y63嘉泰姆	5y63嘉泰姆	13.2y63嘉泰姆	0.6y63嘉泰姆	5~12y63嘉泰姆	4000y63嘉泰姆
CXSD6281Ny63嘉泰姆	SOP14y63嘉泰姆 QSOP16y63嘉泰姆 QFN-16y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	30y63嘉泰姆	2.9y63嘉泰姆	13.2y63嘉泰姆	0.9y63嘉泰姆	12y63嘉泰姆	4000y63嘉泰姆
CXSD6282y63嘉泰姆	SOP-14y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	30y63嘉泰姆	2.2y63嘉泰姆	13.2y63嘉泰姆	0.6y63嘉泰姆	12y63嘉泰姆	5000y63嘉泰姆
CXSD6282Ay63嘉泰姆	SOP-14y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	30y63嘉泰姆	2.2y63嘉泰姆	13.2y63嘉泰姆	0.6y63嘉泰姆	12y63嘉泰姆	5000y63嘉泰姆
CXSD6283y63嘉泰姆	SOP-14y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	25y63嘉泰姆	2.2y63嘉泰姆	13.2y63嘉泰姆	0.8y63嘉泰姆	12y63嘉泰姆	5000y63嘉泰姆
CXSD6284/Ay63嘉泰姆	LQFP7x7 48y63嘉泰姆 TQFN7x7-48y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	6y63嘉泰姆	0.015y63嘉泰姆	1.4y63嘉泰姆	6.5y63嘉泰姆	-y63嘉泰姆	5y63嘉泰姆	1800y63嘉泰姆
CXSD6285y63嘉泰姆	TSSOP-24Py63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	2y63嘉泰姆	20y63嘉泰姆	2.97y63嘉泰姆	5.5y63嘉泰姆	0.8y63嘉泰姆	5~12y63嘉泰姆	5000y63嘉泰姆
CXSD6286y63嘉泰姆	SOP-14y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	10y63嘉泰姆	5y63嘉泰姆	13.2y63嘉泰姆	0.8y63嘉泰姆	12y63嘉泰姆	3000y63嘉泰姆
CXSD6287y63嘉泰姆	SOP-8-P\|DIP-8y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	1y63嘉泰姆	30y63嘉泰姆	2.9y63嘉泰姆	13.2y63嘉泰姆	1.2y63嘉泰姆	12y63嘉泰姆	3000y63嘉泰姆
CXSD6288y63嘉泰姆	SSOP28y63嘉泰姆 QFN4x4-24y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	2y63嘉泰姆	20y63嘉泰姆	5y63嘉泰姆	24y63嘉泰姆	0.9y63嘉泰姆	5y63嘉泰姆	1200y63嘉泰姆
CXSD6289y63嘉泰姆	SOP-20y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	2y63嘉泰姆	20y63嘉泰姆	2.2y63嘉泰姆	13.2y63嘉泰姆	0.6y63嘉泰姆	5~12y63嘉泰姆	4000y63嘉泰姆
CXSD6290y63嘉泰姆	SOP8\|DFN3x3-10y63嘉泰姆	VMy63嘉泰姆	1y63嘉泰姆	2y63嘉泰姆	-y63嘉泰姆	-y63嘉泰姆

上一篇：CXSD62116A|B|C电压模式固定300kHz开关频率和同步降压控制器两个电源电压模式

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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