CXLB7411是一款高度集成的开关电源管理设备，用于智能电源组应用，输出电压可调，包括5V/9V/12V。它的低阻抗电源开关优化了开关电源的工作效率，降低了MOS功耗。USB D+/D-数据线使设备协议握手，设置合适的输出电压，实现快速充电功能。该芯片符合QC 2.0 A级标准，5V时最大输出电流可达3A，同时还包括两个开关mosfet作为同步boost变换器。因此无需外加肖特基二极管，在92%附近可以获得较好的效率。其他功能包括内置软启动、热关机保护、欠压锁定（UVLO）和短路保护功能，当输出电压低于1.5V时，可以关闭设备。CXLB7411可在带有外露衬垫的节省空间的SOP-8（外露衬垫）封装中使用。
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[ CXLB7411 ]"
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7.相关产品
产品概述 返回TOP
The CXLB7411 is highly-integrated switch-mode system power management devices for smart power bank application and regulated output voltage including 5V /9V /12V. Its low impedance power switch optimizes switch-mode operation efficiency, reduces MOS power consumption. The USB D+/D- data line makes the device protocol handshake to set suitable output voltage to do fast charging function. The chip is compliant with QC 2.0 class A specifications with Max. output current up to 3A at 5V. Besides the converter includes two switch MOSFETs as synchronous boost converter. So no external Schottky diode is required and could get better efficiency near 92%. Other features include built-in soft start, thermal shutdown protection, under-voltage lockout (UVLO), and short circuit protection function, which can shut off the device if output voltage reaches below 1.5V. The CXLB7411 is available in a space-saving SOP-8 (Exposed Pad) package with an exposed pad.
产品特点 返回TOP
● Input Voltage Range from 2.9V to 5.5V.
● Output Voltage Can be Set to 5V/9V/12V.
● Built-in Low RDS(ON) Integrated Power MOSFET NMOS 39mΩ/PMOS 42mΩ
● 3.0A Output Current at 5V
● Fixed Switching Frequency 500KHz .
●±2% Voltage Accuracy
● Power-Save Mode for Light-Load Efficiency.
● Short Circuit Current Fold-back Protection.
● Built-in Soft Start, Output Overvoltage Protection and Thermal Protection
●Supports USB DCP Shorting D+ Line to D- Line per USB Battery Charging Specification, Revision 1.2.
● Meets Chinese Telecommunication Industrial Standard YD/T 1591-2009
● Supports USB DCP applying 2.7V on D+ line and 2.7V on D- line.
● Supports USB DCP applying 1.2V on D+ and Dlines
● Automatic selection of D+/D- mode for an attached device
● Complaint with Apple® and Samsung devices
● SOP-8 (Exposed Pad) Pb-Free Package
应用范围 返回TOP
● Backup Battery Pack
● Mobile / Tablet Power
●Digital Cameras and Bluetooth Accessories
● USB Power Output Ports
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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QC2.0协议USB快充接口IC |
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型号 |
工作电压 |
工作电流 |
默认输出电压 |
输出电压 |
工作温度范围 |
封装 |
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3.8-6.0V |
60uA |
5V |
5V/9V/12V/20V |
-40--80℃ |
SOP-8 |
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带QC2.0接口的同步DC-DC升压IC |
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型号 |
工作 模式 |
工作 电压 范围 |
输出 电压 |
输出电 压形式 |
输出 电压 精度 |
输出 电流 限制 |
静态 电流 |
工作 频率 |
封装 |
特点 |
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|
PWM |
2.9V-5.5V |
5V|9V|12V |
可调 输出 |
+/-2% |
3A |
91% |
70uA |
500KHz |
ESOP8 |
带QC2.0接口功能（包含了USB智能识别接口功能）内置8A场效应管，单节锂电输入，输出电压可自动识别负载实现5V/3A和9V/1.2A和12V/1A输出, 带使能端,适合QC2.0快充移动电源应用。 |
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带QC2.0接口的高压同步DC-DC降压IC |
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型号 |
输入 耐压 |
输出 电压 |
输出 电流 |
反馈 电压 |
工作 频率 |
静态工 作电流 |
待机 电流 |
封装 |
特点 |
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|
10V-35V |
可调 输出 |
2.5A |
0.5V |
130KHz |
93% |
15mA |
50uA |
SOP8 |
带QC2.0接口功能(包含了USB智能识别 接口功能),输出电压可自动识别负载 实现5V/2.5A和9V/1.2A和12V/1A输出。 带CC/CV模式,支持充苹果/三星设 备，适合QC2.0快充车充应用 |
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