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LM5574MT/NOPB PDF预览

LM5574MT/NOPB

更新时间: 2024-01-27 10:03:43
品牌 Logo 应用领域
德州仪器 - TI 开关稳压器
页数 文件大小 规格书
28页 881K
描述
75V、0.5A 降压开关稳压器 | PW | 16 | -40 to 125

LM5574MT/NOPB 技术参数

是否Rohs认证:符合生命周期:Transferred
包装说明:TSSOP, TSSOP16,.25Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.18Is Samacsys:N
其他特性:ALSO HAS ADJUSTABLE OUTPUT VOLTAGE AS LOW AS 1.225V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:75 V最小输入电压:6 V
标称输入电压:48 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:5 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:0.5 A
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.1 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK最大切换频率:545 kHz
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:4.4 mmBase Number Matches:1

LM5574MT/NOPB 数据手册

 浏览型号LM5574MT/NOPB的Datasheet PDF文件第7页浏览型号LM5574MT/NOPB的Datasheet PDF文件第8页浏览型号LM5574MT/NOPB的Datasheet PDF文件第9页浏览型号LM5574MT/NOPB的Datasheet PDF文件第11页浏览型号LM5574MT/NOPB的Datasheet PDF文件第12页浏览型号LM5574MT/NOPB的Datasheet PDF文件第13页 
LM5574, LM5574-Q1  
SNVS478F JANUARY 2007REVISED APRIL 2013  
www.ti.com  
LM5574  
SYNC  
SW  
SYNC  
AGND  
CLK  
SW  
500 ns  
Figure 11. Sync from External Clock  
LM5574  
SYNC  
LM5574  
SYNC  
UP TO 5 TOTAL  
DEVICES  
Figure 12. Sync from Multiple Devices  
Multiple LM5574 devices can be synchronized together simply by connecting the SYNC pins together. In this  
configuration all of the devices will be synchronized to the highest frequency device. The diagram in Figure 13  
illustrates the SYNC input/output features of the LM5574. The internal oscillator circuit drives the SYNC pin with  
a strong pull-down / weak pull-up inverter. When the SYNC pin is pulled low either by the internal oscillator or an  
external clock, the ramp cycle of the oscillator is terminated and a new oscillator cycle begins. Thus, if the SYNC  
pins of several LM5574 IC’s are connected together, the IC with the highest internal clock frequency will pull the  
connected SYNC pins low first and terminate the oscillator ramp cycles of the other IC’s. The LM5574 with the  
highest programmed clock frequency will serve as the master and control the switching frequency of the all the  
devices with lower oscillator frequency.  
5V  
SYNC  
10k  
I = f(RT)  
2.5V  
Q
Q
S
R
DEADTIME  
ONE-SHOT  
Figure 13. Simplified Oscillator Block Diagram and SYNC I/O Circuit  
10  
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Copyright © 2007–2013, Texas Instruments Incorporated  
Product Folder Links: LM5574 LM5574-Q1  
 

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