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UCD74111RVFT

更新时间： 2024-02-27 22:50:47
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
22页 843K
描述
High-Current, Synchronous Buck Power Stage

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UCD74111RVFT 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：HQCCN, LCC40,.2X.28,20
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.69模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：14 V最小输入电压：4.7 V
标称输入电压：12 VJESD-30 代码：R-PQCC-N40
JESD-609代码：e4长度：7 mm
湿度敏感等级：2功能数量：1
端子数量：40最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：15 A
封装主体材料：PLASTIC/EPOXY封装代码：HQCCN
封装等效代码：LCC40,.2X.28,20封装形状：RECTANGULAR
封装形式：CHIP CARRIER, HEAT SINK/SLUG峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.52 mm
子类别：Switching Regulator or Controllers最大供电电流 (Isup)：10 mA
标称供电电压 (Vsup)：12 V表面贴装：YES
切换器配置：BUCK最大切换频率：2000 kHz
温度等级：AUTOMOTIVE端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：5 mmBase Number Matches：1

UCD74111RVFT 数据手册

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UCD74111  
www.ti.com  
SLUSAT8 –OCTOBER 2012  
High-Current, Synchronous Buck Power Stage  
1
FEATURES  
DESCRIPTION  
UCD74111 is a multi-chip module integrating a driver  
device and two NexFET power MOSFETs into a  
thermally enhanced compact, 5 mm × 7 mm, QFN  
package. A 15-A output current capability makes the  
device suitable for powering DSP and ASIC. The  
device is designed to complement digital or analog  
PWM controllers. The PWM input of the driver device  
is 3-state compatible. Two driver circuits provide high  
charge and discharge current for the high-side N-  
channel FET switch and the low-side N-channel FET  
2
•
Integrates Synchronous Buck Driver and  
NexFET™ Power MOSFET Technology for  
High Power Density and High Efficiency  
•
15-A Output Current Capability for DSP and  
ASIC  
•
•
•
•
4.7-V to 14-V Input Voltage Range  
Operational Switching Frequency Up to 2 MHz  
Built-In High-Side Current Protection  
synchronous rectifier in  
converter.  
a
synchronous buck  
DCR Current Sensing for Overcurrent  
Protection and Output Current Monitoring  
•
•
Voltage Proportional to Load Current Monitor  
Output  
A precision current sensing amplifier that processes  
the voltage present across an external current sense  
element measures and monitors the output current.  
The PWM controller on the IMON pin can use this  
amplified signal. On-board comparators monitor the  
voltage across the high-side switch and the voltage  
across the external current sense element to  
safeguard the power stage from sudden high-current  
loads. A single resistor for the high-side comparator  
sets the blanking delay. This delay guards against  
false reports coincident with switching edge noise. In  
the event of a high-side fault or an overcurrent fault,  
the high-side FET turns OFF and the fault flag (FLT)  
asserts to alert the PWM controller.  
Tri-State PWM Input for Power Stage  
Shutdown  
•
•
•
UVLO Housekeeping Circuit  
Integrated Thermal Shutdown  
40-Pin, 5 mm x 7 mm, PQFN PowerStack™  
Package  
APPLICATIONS  
•
•
Digital or Analog POL Power Modules  
High Power Density DC-DC Converters for  
Telecom and Networking Applications  
APPLICATION DIAGRAM  
From  
Controller  
SRE  
FLT  
PWM  
VDD  
To  
Controller  
HS_SNS  
IMON  
VIN  
VIN  
SRE_MD  
BOOT  
VOUT  
BP3 UCD74111  
SW  
CSP  
CSN  
ILIM  
RDLY  
AVGG  
VGG  
VGG_DIS AGND  
PGND  
UDG-11243  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
NexFET, PowerStack are trademarks of Texas Instruments.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2012, Texas Instruments Incorporated  
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