CXSD61022A wide input voltage, high efficiency CC step-down DC/DC converter that operates in either

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发表时间：2020-04-08浏览次数：106

CXSD61022A wide input voltage, high efficiency CC step-down DC/DC converter that operates in either

目录jiH嘉泰姆

1.产品概述         2.产品特点jiH嘉泰姆
3.应用范围    4.产品封装图jiH嘉泰姆
5.电路原理图             6.产品PCB                   jiH嘉泰姆
7.产品BOM 8.产品PDF文档 jiH嘉泰姆
9.功能概述 10.相关产品jiH嘉泰姆

一,产品概述(General Description) jiH嘉泰姆

CXSD61022A is a wide input voltage, high efficiency CC step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. CXSD61022A provides up to 2.5A output current at 125kHz switching frequency.jiH嘉泰姆
CXSD61022A provides OVP pin for output over voltage protection.Protection features include cycle-by-cycle current limit,thermal shutdown, and frequency foldback at short circuit. The devices are available in a SOP-8EP package and require very few external devices for operation.jiH嘉泰姆
二.产品特点(Features)jiH嘉泰姆

42V Input Voltage SurgejiH嘉泰姆
40V Steady State OperationjiH嘉泰姆
Up to 2.5A output currentjiH嘉泰姆
Output Voltage 2.5V to 10VjiH嘉泰姆
Resistor ProgrammablejiH嘉泰姆

− Current Limit from 1A to 2.5AjiH嘉泰姆
− Cable Compensation from 0Ω to 0.4ΩjiH嘉泰姆

±7.5% CC Accuracy
− Compensation of Input /Output Voltage Change
− Temperature CompensationjiH嘉泰姆
2% Feedback Voltage AccuracyjiH嘉泰姆
Up to 94% EfficiencyjiH嘉泰姆
125kHz Switching Frequency Eases EMI DesignjiH嘉泰姆
Advanced Feature SetjiH嘉泰姆
− Integrated Soft Start
− Thermal ShutdownjiH嘉泰姆
− Protection Against Shorted ISET PinjiH嘉泰姆
Patented E-LTI technology improvesjiH嘉泰姆
transient response.jiH嘉泰姆
SOP-8EP PackagejiH嘉泰姆
三,应用范围 (Applications)jiH嘉泰姆

Car Charger/ AdaptorjiH嘉泰姆
Rechargeable Portable DevicesjiH嘉泰姆
General-Purpose CC/CV SupplyjiH嘉泰姆
四,产品封装图 (Package)jiH嘉泰姆
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PinjiH嘉泰姆 No.jiH嘉泰姆	NAMEjiH嘉泰姆	DescriptionjiH嘉泰姆
1jiH嘉泰姆	HSBjiH嘉泰姆	High Side Bias Pin. This provides power to the internal high-side MOSFET gate driver.Connect a 100nF capacitor from HSB pin to SW pin.jiH嘉泰姆
2jiH嘉泰姆	INjiH嘉泰姆	Power Supply Input. Bypass this pin with a 10μF ceramic capacitor to GND, placed as close to the IC as possible.jiH嘉泰姆
3jiH嘉泰姆	SWjiH嘉泰姆	Power Switching Output to External Inductor.jiH嘉泰姆
4jiH嘉泰姆	GNDjiH嘉泰姆	Ground. Connect this pin to a large PCB copper area for best heat dissipation. Return FB,COMP, and ISET to this GND, and connect this GND to power GND at a single point for best noise immunity.jiH嘉泰姆
5jiH嘉泰姆	FBjiH嘉泰姆	Feedback Input. The voltage at this pin is regulated to 0.800V. Connect to the resistor divider between output and GND to set the output voltage.jiH嘉泰姆
6jiH嘉泰姆	LCOMPjiH嘉泰姆	Output cable resistance compensation.jiH嘉泰姆
7jiH嘉泰姆	OVP/ENjiH嘉泰姆	CXSD61022A: OVP input. If the voltage at this pin exceeds 1.25V, the IC shuts down high-side switch.CXSD61022B: EN input. If the voltage at this pin is below 1.5V, the IC remains shut-off.jiH嘉泰姆
8jiH嘉泰姆	ISETjiH嘉泰姆	Output Current Setting Pin. Connect a resistor from ISET to GND to program the out putcurrent.jiH嘉泰姆
	ExposedjiH嘉泰姆 PadjiH嘉泰姆	Heat Dissipation Pad. Connect this exposed pad to large ground copper area with copper and vias.jiH嘉泰姆

五,电路原理图jiH嘉泰姆
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六, 产品PCBjiH嘉泰姆
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七.产品BOM jiH嘉泰姆
(略)jiH嘉泰姆
八.产品PDF文档 jiH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！jiH嘉泰姆

QQ截图20160419174301.jpg jiH嘉泰姆

九,功能概述jiH嘉泰姆

CV/CC Loop RegulationjiH嘉泰姆
As seen in Functional Block Diagram, the CXSD61022A isjiH嘉泰姆
a Constant On Time (COT) mode pulse widthjiH嘉泰姆
modulation (PWM) converter with CC and CV control.jiH嘉泰姆
The converter operates as follows:jiH嘉泰姆
The main loop of CXSD61022A uses a COT mode controljiH嘉泰姆
which provides a very fast transient response with nojiH嘉泰姆
external component and no need loop compensation.jiH嘉泰姆
The CXSD61022A also adopt a proprietary circuit thatjiH嘉泰姆
ensures enable use very low ESR capacitor to maintainjiH嘉泰姆
loop stability.jiH嘉泰姆
turns on. The high side MOSFET is turn off afterjiH嘉泰姆
internal one shot timer expires. This one shot time isjiH嘉泰姆
set by VIN and VOUT to maintain a constant frequency.jiH嘉泰姆
The one shot timer is reset and high side MOSFETjiH嘉泰姆
turns on again when feedback voltage falls below thejiH嘉泰姆
reference voltage. An internal ramp is generating tojiH嘉泰姆
simulate output ripple, eliminating the need for ESRjiH嘉泰姆
induced output ripple from COT control mode. WhenjiH嘉泰姆
high side MOSFET turns off, the SW node of thejiH嘉泰姆
inductor swings to a diode voltage below ground,jiH嘉泰姆
causing the inductor current to decrease and magneticjiH嘉泰姆
energy to be transferred to output. This state continuesjiH嘉泰姆
until the next cycle start againjiH嘉泰姆
十,相关产品 更多同类产品......jiH嘉泰姆

DC-DC降压ICjiH嘉泰姆
型号jiH嘉泰姆	输入耐压jiH嘉泰姆	输出电压jiH嘉泰姆	输出电流jiH嘉泰姆	反馈电压jiH嘉泰姆	工作频率jiH嘉泰姆	效率jiH嘉泰姆	静态工作电流jiH嘉泰姆
CXSD61023AjiH嘉泰姆	42VjiH嘉泰姆	可调输出/带CC/cv模式恒流模式保护jiH嘉泰姆	3.5AjiH嘉泰姆	0.8VjiH嘉泰姆	125KjiH嘉泰姆	94%jiH嘉泰姆	3mAjiH嘉泰姆
CXSD61021AjiH嘉泰姆	42VjiH嘉泰姆	可调输出/带CC/cv模式恒流模式保护jiH嘉泰姆	3AjiH嘉泰姆	0.8VjiH嘉泰姆	125KjiH嘉泰姆	94%jiH嘉泰姆	3mAjiH嘉泰姆
CXSD61022AjiH嘉泰姆	42VjiH嘉泰姆	可调输出/带CC/cv模式恒流模式保护jiH嘉泰姆	2.5AjiH嘉泰姆	0.8VjiH嘉泰姆	125KjiH嘉泰姆	94%jiH嘉泰姆	3mAjiH嘉泰姆
CXSD61020jiH嘉泰姆	40VjiH嘉泰姆	可调输出/带CC/cv模式jiH嘉泰姆	3AjiH嘉泰姆	0.8VjiH嘉泰姆	225KjiH嘉泰姆	92%jiH嘉泰姆	2.84mAjiH嘉泰姆
CXSD61027jiH嘉泰姆	50VjiH嘉泰姆	5V固定输出jiH嘉泰姆	3.2AjiH嘉泰姆		150KjiH嘉泰姆	87%jiH嘉泰姆	4.7mAjiH嘉泰姆
CXSD61026jiH嘉泰姆	50VjiH嘉泰姆	5V固定输出jiH嘉泰姆	2.4AjiH嘉泰姆		150KjiH嘉泰姆	89%jiH嘉泰姆	4.7mAjiH嘉泰姆
CXSD61025jiH嘉泰姆	50VjiH嘉泰姆	5V固定输出jiH嘉泰姆	2.1AjiH嘉泰姆		150KjiH嘉泰姆	90%jiH嘉泰姆	4.7mAjiH嘉泰姆
CXSD61024jiH嘉泰姆	50VjiH嘉泰姆	5V固定输出jiH嘉泰姆	1.8AjiH嘉泰姆		150KjiH嘉泰姆	90%jiH嘉泰姆	4.7mAjiH嘉泰姆
CXSD61015jiH嘉泰姆	40VjiH嘉泰姆	可调输出/带CC/CV模式带线损补偿jiH嘉泰姆	3AjiH嘉泰姆	0.8VjiH嘉泰姆	125KjiH嘉泰姆	94%jiH嘉泰姆	4mAjiH嘉泰姆
CXSD61014AjiH嘉泰姆	40VjiH嘉泰姆	5V固定输出jiH嘉泰姆	3.5AjiH嘉泰姆		150KjiH嘉泰姆	93%jiH嘉泰姆	2mAjiH嘉泰姆
CXSD61013BjiH嘉泰姆	45VjiH嘉泰姆	可调输出/jiH嘉泰姆	2AjiH嘉泰姆	1.23VjiH嘉泰姆	150KjiH嘉泰姆	93%jiH嘉泰姆	2mAjiH嘉泰姆
CXSD61012jiH嘉泰姆	40VjiH嘉泰姆	可调输出/带CC/CV模式jiH嘉泰姆	2AjiH嘉泰姆	1.18VjiH嘉泰姆	110KjiH嘉泰姆	93%jiH嘉泰姆	10mAjiH嘉泰姆
CXSD61011jiH嘉泰姆	42VjiH嘉泰姆	可调输出jiH嘉泰姆	3AjiH嘉泰姆	0.8VjiH嘉泰姆	50-500KjiH嘉泰姆	91%jiH嘉泰姆	3mAjiH嘉泰姆
CXSD61018jiH嘉泰姆	40VjiH嘉泰姆	可调输出/带CC/cv模式jiH嘉泰姆	3AjiH嘉泰姆	1.25VjiH嘉泰姆	180KjiH嘉泰姆	89%jiH嘉泰姆	2.1mAjiH嘉泰姆
CXSD61019jiH嘉泰姆	40VjiH嘉泰姆	可调输出/带CC/cv模式jiH嘉泰姆	3.5AjiH嘉泰姆	1.25VjiH嘉泰姆	180KjiH嘉泰姆	87%jiH嘉泰姆	2.1mAjiH嘉泰姆
CXSD61017jiH嘉泰姆	45VjiH嘉泰姆	可调输出/带CC模式jiH嘉泰姆	3AjiH嘉泰姆	1.25VjiH嘉泰姆	150KjiH嘉泰姆	89%jiH嘉泰姆	2.0mAjiH嘉泰姆
CXSD61016jiH嘉泰姆	45VjiH嘉泰姆	可调输出/带CC模式jiH嘉泰姆	2AjiH嘉泰姆	1.235VjiH嘉泰姆	150KjiH嘉泰姆	83%jiH嘉泰姆	2.0mAjiH嘉泰姆
CXSD61006BjiH嘉泰姆	4.75V-40VjiH嘉泰姆	可调输出jiH嘉泰姆	0.8AjiH嘉泰姆	0.8VjiH嘉泰姆	550KjiH嘉泰姆	90%jiH嘉泰姆	10uAjiH嘉泰姆
CXSD61006jiH嘉泰姆	4.0-42VjiH嘉泰姆	可调输出jiH嘉泰姆	1.5AjiH嘉泰姆	0.8VjiH嘉泰姆	650KjiH嘉泰姆	91%jiH嘉泰姆	600uAjiH嘉泰姆
CXSD61005jiH嘉泰姆	4.5-25VjiH嘉泰姆	可调输出jiH嘉泰姆	1.8AjiH嘉泰姆	0.8VjiH嘉泰姆	1.4MjiH嘉泰姆	92%jiH嘉泰姆	1.8mAjiH嘉泰姆
CXSD61010AjiH嘉泰姆	20VjiH嘉泰姆	可调输出jiH嘉泰姆	3.5AjiH嘉泰姆	1.2VjiH嘉泰姆	400KjiH嘉泰姆	89%jiH嘉泰姆	700uAjiH嘉泰姆
CXSD61010jiH嘉泰姆	28VjiH嘉泰姆	可调输出jiH嘉泰姆	3AjiH嘉泰姆	1.22VjiH嘉泰姆	380KjiH嘉泰姆	89%jiH嘉泰姆	3mAjiH嘉泰姆
CXSD61009jiH嘉泰姆	20VjiH嘉泰姆	可调输出jiH嘉泰姆	3AjiH嘉泰姆	0.8VjiH嘉泰姆	380KjiH嘉泰姆	88%jiH嘉泰姆	3mAjiH嘉泰姆
CXSD61008jiH嘉泰姆	20VjiH嘉泰姆	可调输出jiH嘉泰姆	2AjiH嘉泰姆	0.8VjiH嘉泰姆	380KjiH嘉泰姆	89%jiH嘉泰姆	2mAjiH嘉泰姆
CXSD61007jiH嘉泰姆	45VjiH嘉泰姆	5.0V/可调输出/3.3/12VjiH嘉泰姆	2AjiH嘉泰姆	1.23VjiH嘉泰姆	150KjiH嘉泰姆	82%jiH嘉泰姆	2mAjiH嘉泰姆
CXSD61003jiH嘉泰姆	45VjiH嘉泰姆	5.0V/可调输出jiH嘉泰姆	3AjiH嘉泰姆	1.23VjiH嘉泰姆	380KjiH嘉泰姆	73%jiH嘉泰姆	2mAjiH嘉泰姆
CXSD61004jiH嘉泰姆	27VjiH嘉泰姆	可调输出jiH嘉泰姆	2AjiH嘉泰姆	1.22VjiH嘉泰姆	420KjiH嘉泰姆	95%jiH嘉泰姆	1mAjiH嘉泰姆

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