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TPS54623RHLT PDF预览

TPS54623RHLT

更新时间: 2024-09-19 11:58:23
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
37页 1554K
描述
4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter With Light Load Efficiency and Hiccup Over Current Protection

TPS54623RHLT 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:QFN
包装说明:HVQCCN,针数:14
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:1.69
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:17 V
最小输入电压:1.6 VJESD-30 代码:S-PQCC-N14
JESD-609代码:e4长度:3.5 mm
湿度敏感等级:2功能数量:1
端子数量:14最高工作温度:150 °C
最低工作温度:-40 °C最大输出电流:15 A
最大输出电压:15 V最小输出电压:0.6 V
封装主体材料:PLASTIC/EPOXY封装代码:HVQCCN
封装形状:SQUARE封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260座面最大高度:1 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:1600 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:3.5 mm
Base Number Matches:1

TPS54623RHLT 数据手册

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TPS54623  
www.ti.com  
SLVSB09 SEPTEMBER 2011  
4.5V to 17V Input, 6A Synchronous Step Down SWIFTConverter With Light Load  
Efficiency and Hiccup Over Current Protection  
Check for Samples: TPS54623  
1
FEATURES  
Power Good Output Monitor for Undervoltage  
and Overvoltage  
Integrated 26m/ 19mMOSFETs  
Adjustable Input Undervoltage Lockout  
Split Power Rail: 1.6V to 17V on PVIN  
200kHz to 1.6MHz Switching Frequency  
Light Load Efficient with Pulse Skip  
Synchronizes to External Clock  
Supported by SwitcherProSoftware Tool  
For SWIFTDocumentation and  
SwitcherPro, visit http://www.ti.com/swift  
0.6V ±1% Voltage Reference Over Temperature  
Low 2µA Shutdown Quiescent Current  
Monotonic Start-Up into Pre-biased Outputs  
APPLICATIONS  
High Density Distributed Power Systems  
High Performance Point of Load Regulation  
40°C to 150°C Operating Junction  
Temperature Range  
Broadband, Networking and Optical  
Communications Infrastructure  
Adjustable Slow Start/Power Sequencing  
DESCRIPTION  
The TPS54623 in thermally enhanced 3.5mm x 3.5mm QFN package is a full featured 17V, 6A synchronous step  
down converter which is optimized for small designs through high efficiency and integrating the high-side and  
low-side MOSFETs. Further space savings are achieved through current mode control, which reduces  
component count, and by selecting a high switching frequency, reducing the inductor's footprint.  
The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone  
power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and  
the open drain power good pins.  
Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced  
by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit  
which turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection will be triggered if  
the overcurrent condition has persisted for longer than the preset time. Thermal hiccup protection disables the  
device when the die temperature exceeds the thermal shutdown temperature and enables the part again after  
the built-in thermal shutdown hiccup time. The TPS54623 operates at continuous current mode (CCM) at higher  
load conditions while skipping pulses to boost the efficiency at light loads.  
WHITE SPACE  
SIMPLIFIED SCHEMATIC  
100  
PVIN  
VIN  
VIN  
95  
Cboot  
90  
85  
80  
75  
70  
65  
60  
55  
50  
TPS54623  
BOOT  
Cin  
Vin = 8 V  
Vin = 12 V  
VOUT  
Lo  
EN  
PH  
Vin = 17 V  
Co  
PWRGD  
R1  
VSENSE  
SS/TR  
R2  
RT/CLK  
COMP  
GND  
R3  
C1  
Exposed  
Thermal  
Pad  
Css  
Rrt C2  
0
1
2
3
4
5
6
Output Current - A  
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.  
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 © 2011, Texas Instruments Incorporated  

TPS54623RHLT 替代型号

型号 品牌 替代类型 描述 数据表
TPS54623RHLR TI

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4.5V to 17V Input, 6A Synchronous Step Down S

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