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：112

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

Protection (UVP) and Over-Voltage Protection (OVP) moni-tor the FBgEl嘉泰姆
voltage to protect CXSD62117 from burnout when output voltage isgEl嘉泰姆
under 50% or over 120% of normal out-put voltage. The CXSD62117gEl嘉泰姆
is available in SOP-20 package.gEl嘉泰姆

二.产品特点(Features)gEl嘉泰姆
Single 12V Power Supply RequiredgEl嘉泰姆
Excellent Output Voltage RegulationgEl嘉泰姆
- 1.0V±0.8% Internal Reference Over Line and TemperaturegEl嘉泰姆
Simple Single Loop Control DesigngEl嘉泰姆
- Voltage Mode PWM Control 0~100% Duty RatiogEl嘉泰姆
Programmable Frequency Range from 50kHz togEl嘉泰姆
400kHz (Constant 50kHz when Floating)gEl嘉泰姆
Integrated Soft-Start and Soft-Off (Patent Pending)gEl嘉泰姆
Support Pre-Biased Power-OngEl嘉泰姆
Both Channel with 180o Phase ShiftgEl嘉泰姆
Integrated Boot-Strap DiodegEl嘉泰姆
Over-Current ProtectiongEl嘉泰姆
- Sense High Side MOSFET’s RDS(ON)gEl嘉泰姆
120% Over-Voltage ProtectiongEl嘉泰姆
50% Under-Voltage ProtectiongEl嘉泰姆
Over-Temperature ProtectiongEl嘉泰姆
Available in SOP-20 PackagegEl嘉泰姆
Lead Free and Green Devices Available (RoHS Compliant)gEl嘉泰姆
三,应用范围 (Applications)gEl嘉泰姆
SMPSgEl嘉泰姆

四.下载产品资料PDF文档 gEl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！gEl嘉泰姆

QQ截图20160419174301.jpg gEl嘉泰姆

gEl嘉泰姆

五,产品封装图 (Package)gEl嘉泰姆

gEl嘉泰姆

六.电路原理图gEl嘉泰姆

gEl嘉泰姆

七,功能概述gEl嘉泰姆

Layout ConsiderationgEl嘉泰姆
In any high switching frequency converter, a correct lay-out is important to ensure proper operation of thegEl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 linesgEl嘉泰姆
Layout Consideration (Cont.)gEl嘉泰姆

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

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

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

八,相关产品 更多同类产品...... gEl嘉泰姆

Switching Regulator > Buck ControllergEl嘉泰姆
Part_No gEl嘉泰姆	Package gEl嘉泰姆	ArchigEl嘉泰姆 tectugEl嘉泰姆	PhasegEl嘉泰姆	No.ofgEl嘉泰姆 PWMgEl嘉泰姆 OutputgEl嘉泰姆	Output gEl嘉泰姆 CurrentgEl嘉泰姆 (A) gEl嘉泰姆	InputgEl嘉泰姆 Voltage (V) gEl嘉泰姆		ReferencegEl嘉泰姆 VoltagegEl嘉泰姆 (V) gEl嘉泰姆	Bias gEl嘉泰姆 VoltagegEl嘉泰姆 (V) gEl嘉泰姆	QuiescentgEl嘉泰姆 CurrentgEl嘉泰姆 (uA) gEl嘉泰姆
Part_No gEl嘉泰姆	Package gEl嘉泰姆	ArchigEl嘉泰姆 tectugEl嘉泰姆	PhasegEl嘉泰姆	No.ofgEl嘉泰姆 PWMgEl嘉泰姆 OutputgEl嘉泰姆	Output gEl嘉泰姆 CurrentgEl嘉泰姆 (A) gEl嘉泰姆	mingEl嘉泰姆	maxgEl嘉泰姆	ReferencegEl嘉泰姆 VoltagegEl嘉泰姆 (V) gEl嘉泰姆	Bias gEl嘉泰姆 VoltagegEl嘉泰姆 (V) gEl嘉泰姆	QuiescentgEl嘉泰姆 CurrentgEl嘉泰姆 (uA) gEl嘉泰姆
CXSD6273gEl嘉泰姆	SOP-14gEl嘉泰姆 QSOP-16gEl嘉泰姆 QFN4x4-16gEl嘉泰姆	VM gEl嘉泰姆	1 gEl嘉泰姆	1 gEl嘉泰姆	30gEl嘉泰姆	2.9 gEl嘉泰姆	13.2gEl嘉泰姆	0.9gEl嘉泰姆	12 gEl嘉泰姆	8000gEl嘉泰姆
CXSD6274gEl嘉泰姆	SOP-8gEl嘉泰姆	VM gEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	20gEl嘉泰姆	2.9 gEl嘉泰姆	13.2 gEl嘉泰姆	0.8gEl嘉泰姆	12gEl嘉泰姆	5000gEl嘉泰姆
CXSD6274CgEl嘉泰姆	SOP-8gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	20gEl嘉泰姆	2.9gEl嘉泰姆	13.2gEl嘉泰姆	0.8gEl嘉泰姆	12gEl嘉泰姆	5000gEl嘉泰姆
CXSD6275gEl嘉泰姆	QFN4x4-24gEl嘉泰姆	VMgEl嘉泰姆	2gEl嘉泰姆	1gEl嘉泰姆	60gEl嘉泰姆	3.1gEl嘉泰姆	13.2gEl嘉泰姆	0.6gEl嘉泰姆	12gEl嘉泰姆	5000gEl嘉泰姆
CXSD6276gEl嘉泰姆	SOP-8gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	20gEl嘉泰姆	2.2gEl嘉泰姆	13.2gEl嘉泰姆	0.8gEl嘉泰姆	5~12gEl嘉泰姆	2100gEl嘉泰姆
CXSD6276AgEl嘉泰姆	SOP-8gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	20gEl嘉泰姆	2.2gEl嘉泰姆	13.2gEl嘉泰姆	0.8gEl嘉泰姆	5~12gEl嘉泰姆	2100gEl嘉泰姆
CXSD6277/A/BgEl嘉泰姆	SOP8\|TSSOP8gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	5gEl嘉泰姆	5gEl嘉泰姆	13.2gEl嘉泰姆	1.25\|0.8gEl嘉泰姆	5~12gEl嘉泰姆	3000gEl嘉泰姆
CXSD6278gEl嘉泰姆	SOP-8gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	10gEl嘉泰姆	3.3gEl嘉泰姆	5.5gEl嘉泰姆	0.8gEl嘉泰姆	5gEl嘉泰姆	2100gEl嘉泰姆
CXSD6279BgEl嘉泰姆	SOP-14gEl嘉泰姆	VM gEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	10gEl嘉泰姆	5gEl嘉泰姆	13.2gEl嘉泰姆	0.8gEl嘉泰姆	12gEl嘉泰姆	2000gEl嘉泰姆
CXSD6280gEl嘉泰姆	TSSOP-24gEl嘉泰姆 \|QFN5x5-32gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	2gEl嘉泰姆	20gEl嘉泰姆	5gEl嘉泰姆	13.2gEl嘉泰姆	0.6gEl嘉泰姆	5~12gEl嘉泰姆	4000gEl嘉泰姆
CXSD6281NgEl嘉泰姆	SOP14gEl嘉泰姆 QSOP16gEl嘉泰姆 QFN-16gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	30gEl嘉泰姆	2.9gEl嘉泰姆	13.2gEl嘉泰姆	0.9gEl嘉泰姆	12gEl嘉泰姆	4000gEl嘉泰姆
CXSD6282gEl嘉泰姆	SOP-14gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	30gEl嘉泰姆	2.2gEl嘉泰姆	13.2gEl嘉泰姆	0.6gEl嘉泰姆	12gEl嘉泰姆	5000gEl嘉泰姆
CXSD6282AgEl嘉泰姆	SOP-14gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	30gEl嘉泰姆	2.2gEl嘉泰姆	13.2gEl嘉泰姆	0.6gEl嘉泰姆	12gEl嘉泰姆	5000gEl嘉泰姆
CXSD6283gEl嘉泰姆	SOP-14gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	25gEl嘉泰姆	2.2gEl嘉泰姆	13.2gEl嘉泰姆	0.8gEl嘉泰姆	12gEl嘉泰姆	5000gEl嘉泰姆
CXSD6284/AgEl嘉泰姆	LQFP7x7 48gEl嘉泰姆 TQFN7x7-48gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	6gEl嘉泰姆	0.015gEl嘉泰姆	1.4gEl嘉泰姆	6.5gEl嘉泰姆	-gEl嘉泰姆	5gEl嘉泰姆	1800gEl嘉泰姆
CXSD6285gEl嘉泰姆	TSSOP-24PgEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	2gEl嘉泰姆	20gEl嘉泰姆	2.97gEl嘉泰姆	5.5gEl嘉泰姆	0.8gEl嘉泰姆	5~12gEl嘉泰姆	5000gEl嘉泰姆
CXSD6286gEl嘉泰姆	SOP-14gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	10gEl嘉泰姆	5gEl嘉泰姆	13.2gEl嘉泰姆	0.8gEl嘉泰姆	12gEl嘉泰姆	3000gEl嘉泰姆
CXSD6287gEl嘉泰姆	SOP-8-P\|DIP-8gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	1gEl嘉泰姆	30gEl嘉泰姆	2.9gEl嘉泰姆	13.2gEl嘉泰姆	1.2gEl嘉泰姆	12gEl嘉泰姆	3000gEl嘉泰姆
CXSD6288gEl嘉泰姆	SSOP28gEl嘉泰姆 QFN4x4-24gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	2gEl嘉泰姆	20gEl嘉泰姆	5gEl嘉泰姆	24gEl嘉泰姆	0.9gEl嘉泰姆	5gEl嘉泰姆	1200gEl嘉泰姆
CXSD6289gEl嘉泰姆	SOP-20gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	2gEl嘉泰姆	20gEl嘉泰姆	2.2gEl嘉泰姆	13.2gEl嘉泰姆	0.6gEl嘉泰姆	5~12gEl嘉泰姆	4000gEl嘉泰姆
CXSD6290gEl嘉泰姆	SOP8\|DFN3x3-10gEl嘉泰姆	VMgEl嘉泰姆	1gEl嘉泰姆	2gEl嘉泰姆	-gEl嘉泰姆	-gEl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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