CXSD6282A关闭和软启动功能电压型PWM控制设计欠压保护（UVP）过电流保护（OCP）

目录YRU嘉泰姆

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

一,产品概述(General Description) YRU嘉泰姆

The CXSD6282 CXSD6282A is a voltage mode, synchronous PWM controller whichYRU嘉泰姆
drives dual N-channel MOSFETs. The device integrates all of the control, monitoring and protecting functions into a single package, provides one controlled power output with under-voltage and over-current protections.The CXSD6282 CXSD6282A provides excellent regulation for output load variation. The internal 0.6V temperature-compensated reference voltage is designed to meet the requirement of low output voltage applications. The device includes a 200kHz free-running triangle-wave oscillator that is adjustable from 50kHz to 1000kHz.YRU嘉泰姆
The CXSD6282 CXSD6282A has been equipped with excellent protec-tion functions: POR, OCP, and UVP. The Power-On-Re-set (POR) circuit can monitor the VCC, EN, and OCSET voltage to make sure the supply voltage exceeds their threshold voltage while the controller is running. The Over-Current Protection (OCP) monitors the output cur-rent by using the voltage drop across the upper MOSFET’s RDS(ON). When the output current reaches the trip point, the controller will run the soft-start function until the fault events are removed. The Under-Voltage Protection (UVP)monitors the voltage at FB pin (V FB) for short-circuit protection. When the VFB is less than 50% of VREF, the controller will shutdown the IC directly. YRU嘉泰姆
二.产品特点(Features)YRU嘉泰姆

1.)Single 12V Power Supply RequiredYRU嘉泰姆
2.)0.6V Reference with 1% AccuracyYRU嘉泰姆
3.)Shutdown and Soft-Start FunctionYRU嘉泰姆
4.)1.)Programmable Frequency Range from 50 kHz to 1000kHzYRU嘉泰姆
5.)Voltage Mode PWM Control DesignYRU嘉泰姆
6.)Up to 100% Duty CycleYRU嘉泰姆
7.)Under-Voltage Protection (UVP)YRU嘉泰姆
8.)Over-Current Protection (OCP) SOP-14 PackageYRU嘉泰姆
9.)Lead Free and Green Devices Available (RoHS Compliant)YRU嘉泰姆
三,应用范围 (Applications)YRU嘉泰姆

Graphic CardsYRU嘉泰姆
四.下载产品资料PDF文档 YRU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！YRU嘉泰姆

QQ截图20160419174301.jpg YRU嘉泰姆

YRU嘉泰姆

五,产品封装图 (Package)YRU嘉泰姆

六.电路原理图

七,功能概述

Layout Consideration
In any high switching frequency converter, a correct layout is important to ensure proper operation
of the regulator.With power devices switching at 300kHz,the resulting cur-rent transient will cause
voltage spike across the i n t e r c o n n e c t i n g impedance and parasitic circuit elements. As an
example, consider the turn-off transition of the PWM MOSFET. Before turn-off, the MOSFET is
carrying 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 interconnect-ing impedances and the magnitude
of voltage spike.And signal and power grounds are to be kept separating till combined using
the ground plane construction or single point grounding. Figure 10 illustrates the layout,
with bold lines indicating high current paths; these traces must be short and wide. Components
along the bold lines should be 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 traces to these nodes as short as possible.
- The traces from the gate drivers to the MOSFETs (UGATE, LGATE) should be short and wide.
- Place the source of the high-side MOSFET and the drain of the low-side MOSFET as close as possible.
Minimizing the impedance with wide layout plane between the two pads reduces the voltage bounce of
the node.
- Decoupling capacitor, compensation component, the resistor dividers, boot capacitors, and SS capacitors
should be close their pins. (For example, place the decoupling ceramic capacitor near the drain of the
high-side MOSFET as close as possible. The bulk capacitors are also placed near the drain).
- The input capacitor should be near the drain of the upper MOSFET; the output capacitor should be near
the loads. The input capacitor GND should be close to the output capacitor GND and the lower MOSFET
GND.
- The drain of the MOSFETs (VIN and PHASE nodes)should be a large plane for heat sinking.

八,相关产品 更多同类产品...... YRU嘉泰姆

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Part_No YRU嘉泰姆	Package YRU嘉泰姆	ArchiYRU嘉泰姆 tectuYRU嘉泰姆	PhaseYRU嘉泰姆	No.ofYRU嘉泰姆 PWMYRU嘉泰姆 OutputYRU嘉泰姆	Output YRU嘉泰姆 CurrentYRU嘉泰姆 (A) YRU嘉泰姆	InputYRU嘉泰姆 Voltage (V) YRU嘉泰姆		ReferenceYRU嘉泰姆 VoltageYRU嘉泰姆 (V) YRU嘉泰姆	Bias YRU嘉泰姆 VoltageYRU嘉泰姆 (V) YRU嘉泰姆	QuiescentYRU嘉泰姆 CurrentYRU嘉泰姆 (uA) YRU嘉泰姆
Part_No YRU嘉泰姆	Package YRU嘉泰姆	ArchiYRU嘉泰姆 tectuYRU嘉泰姆	PhaseYRU嘉泰姆	No.ofYRU嘉泰姆 PWMYRU嘉泰姆 OutputYRU嘉泰姆	Output YRU嘉泰姆 CurrentYRU嘉泰姆 (A) YRU嘉泰姆	minYRU嘉泰姆	maxYRU嘉泰姆	ReferenceYRU嘉泰姆 VoltageYRU嘉泰姆 (V) YRU嘉泰姆	Bias YRU嘉泰姆 VoltageYRU嘉泰姆 (V) YRU嘉泰姆	QuiescentYRU嘉泰姆 CurrentYRU嘉泰姆 (uA) YRU嘉泰姆
CXSD6273YRU嘉泰姆	SOP-14YRU嘉泰姆 QSOP-16YRU嘉泰姆 QFN4x4-16YRU嘉泰姆	VM YRU嘉泰姆	1 YRU嘉泰姆	1 YRU嘉泰姆	30YRU嘉泰姆	2.9 YRU嘉泰姆	13.2YRU嘉泰姆	0.9YRU嘉泰姆	12 YRU嘉泰姆	8000YRU嘉泰姆
CXSD6274YRU嘉泰姆	SOP-8YRU嘉泰姆	VM YRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	20YRU嘉泰姆	2.9 YRU嘉泰姆	13.2 YRU嘉泰姆	0.8YRU嘉泰姆	12YRU嘉泰姆	5000YRU嘉泰姆
CXSD6274CYRU嘉泰姆	SOP-8YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	20YRU嘉泰姆	2.9YRU嘉泰姆	13.2YRU嘉泰姆	0.8YRU嘉泰姆	12YRU嘉泰姆	5000YRU嘉泰姆
CXSD6275YRU嘉泰姆	QFN4x4-24YRU嘉泰姆	VMYRU嘉泰姆	2YRU嘉泰姆	1YRU嘉泰姆	60YRU嘉泰姆	3.1YRU嘉泰姆	13.2YRU嘉泰姆	0.6YRU嘉泰姆	12YRU嘉泰姆	5000YRU嘉泰姆
CXSD6276YRU嘉泰姆	SOP-8YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	20YRU嘉泰姆	2.2YRU嘉泰姆	13.2YRU嘉泰姆	0.8YRU嘉泰姆	5~12YRU嘉泰姆	2100YRU嘉泰姆
CXSD6276AYRU嘉泰姆	SOP-8YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	20YRU嘉泰姆	2.2YRU嘉泰姆	13.2YRU嘉泰姆	0.8YRU嘉泰姆	5~12YRU嘉泰姆	2100YRU嘉泰姆
CXSD6277/A/BYRU嘉泰姆	SOP8\|TSSOP8YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	5YRU嘉泰姆	5YRU嘉泰姆	13.2YRU嘉泰姆	1.25\|0.8YRU嘉泰姆	5~12YRU嘉泰姆	3000YRU嘉泰姆
CXSD6278YRU嘉泰姆	SOP-8YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	10YRU嘉泰姆	3.3YRU嘉泰姆	5.5YRU嘉泰姆	0.8YRU嘉泰姆	5YRU嘉泰姆	2100YRU嘉泰姆
CXSD6279BYRU嘉泰姆	SOP-14YRU嘉泰姆	VM YRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	10YRU嘉泰姆	5YRU嘉泰姆	13.2YRU嘉泰姆	0.8YRU嘉泰姆	12YRU嘉泰姆	2000YRU嘉泰姆
CXSD6280YRU嘉泰姆	TSSOP-24YRU嘉泰姆 \|QFN5x5-32YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	2YRU嘉泰姆	20YRU嘉泰姆	5YRU嘉泰姆	13.2YRU嘉泰姆	0.6YRU嘉泰姆	5~12YRU嘉泰姆	4000YRU嘉泰姆
CXSD6281NYRU嘉泰姆	SOP14YRU嘉泰姆 QSOP16YRU嘉泰姆 QFN-16YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	30YRU嘉泰姆	2.9YRU嘉泰姆	13.2YRU嘉泰姆	0.9YRU嘉泰姆	12YRU嘉泰姆	4000YRU嘉泰姆
CXSD6282YRU嘉泰姆	SOP-14YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	30YRU嘉泰姆	2.2YRU嘉泰姆	13.2YRU嘉泰姆	0.6YRU嘉泰姆	12YRU嘉泰姆	5000YRU嘉泰姆
CXSD6282AYRU嘉泰姆	SOP-14YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	30YRU嘉泰姆	2.2YRU嘉泰姆	13.2YRU嘉泰姆	0.6YRU嘉泰姆	12YRU嘉泰姆	5000YRU嘉泰姆
CXSD6283YRU嘉泰姆	SOP-14YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	25YRU嘉泰姆	2.2YRU嘉泰姆	13.2YRU嘉泰姆	0.8YRU嘉泰姆	12YRU嘉泰姆	5000YRU嘉泰姆
CXSD6284/AYRU嘉泰姆	LQFP7x7 48YRU嘉泰姆 TQFN7x7-48YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	6YRU嘉泰姆	0.015YRU嘉泰姆	1.4YRU嘉泰姆	6.5YRU嘉泰姆	-YRU嘉泰姆	5YRU嘉泰姆	1800YRU嘉泰姆
CXSD6285YRU嘉泰姆	TSSOP-24PYRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	2YRU嘉泰姆	20YRU嘉泰姆	2.97YRU嘉泰姆	5.5YRU嘉泰姆	0.8YRU嘉泰姆	5~12YRU嘉泰姆	5000YRU嘉泰姆
CXSD6286YRU嘉泰姆	SOP-14YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	10YRU嘉泰姆	5YRU嘉泰姆	13.2YRU嘉泰姆	0.8YRU嘉泰姆	12YRU嘉泰姆	3000YRU嘉泰姆
CXSD6287YRU嘉泰姆	SOP-8-P\|DIP-8YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	1YRU嘉泰姆	30YRU嘉泰姆	2.9YRU嘉泰姆	13.2YRU嘉泰姆	1.2YRU嘉泰姆	12YRU嘉泰姆	3000YRU嘉泰姆
CXSD6288YRU嘉泰姆	SSOP28YRU嘉泰姆 QFN4x4-24YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	2YRU嘉泰姆	20YRU嘉泰姆	5YRU嘉泰姆	24YRU嘉泰姆	0.9YRU嘉泰姆	5YRU嘉泰姆	1200YRU嘉泰姆
CXSD6289YRU嘉泰姆	SOP-20YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	2YRU嘉泰姆	20YRU嘉泰姆	2.2YRU嘉泰姆	13.2YRU嘉泰姆	0.6YRU嘉泰姆	5~12YRU嘉泰姆	4000YRU嘉泰姆
CXSD6290YRU嘉泰姆	SOP8\|DFN3x3-10YRU嘉泰姆	VMYRU嘉泰姆	1YRU嘉泰姆	2YRU嘉泰姆	-YRU嘉泰姆	-YRU嘉泰姆	-YRU嘉泰姆	-YRU嘉泰姆