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| 型号： | TLE6389G50-1 |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 420 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封装： | PLASTIC, DSO-14 |
| 文件页数： | 25/37页 |
| 文件大小： | 368K |
| 代理商： | TLE6389G50-1 |
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TLE 6389
Preliminary data sheet Rev. 1.0
31
2003-05-05
Sense resistor values of 50m
for the 5V output voltage versions. When choosing an
inductance different from 47H the Sense resistor has to be changed also.
To achieve the same effect of slope compensation in the adjustable voltage version also
the inductance in H is given by
The inductance value determines together with the input voltage, the output voltage and
the switching frequency the current ripple which occurs during normal operation of the
step down converter. This current ripple is important for the all over ripple at the output
of the switching converter. .
When picking finally the inductance of a certain supplier (Epcos, Coilcraft etc.) the
saturation current has to be considered. The saturation current value of the desired
inductance has to be higher than the maximum load current which can appear in the
actual application.
7.10.2
Determining the current limit
The peak current which the buck converter is able to provide is determined by the peak
current limit threshold voltage VLIM and the sense resistor RSENSE. With a maximum peak
R
SENSE
L1
-------------------
1064
,
3
×10
=
94 V
VO UT
R
SENSE
() L1
188 V
V OUT
R
SENSE
()
<<
I
V
IN
V
OUT
–
() V
OUT
f
SW
V
IN
L1
------------------------------------------------------
=
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TLE6389G501NTMA1 | 制造商:Infineon Technologies AG 功能描述:DC DC Cntrlr Single-OUT Step Down 5V to 60V Input 14-Pin DSO 制造商:Infineon Technologies AG 功能描述:IC REG BUCK BOOST 5V 3A PDSO14 |
| TLE6389G50NTMA1 | 制造商:Infineon Technologies AG 功能描述:DC DC Cntrlr Single-OUT Step Down 5V to 60V Input 14-Pin DSO 制造商:Infineon Technologies AG 功能描述:IC REG BUCK BOOST 5V 3A PDSO14 |
| TLE6389GV | 功能描述:DC/DC 开关控制器 Step-Down DC/DC Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TLE6389GVT | 制造商:Infineon Technologies AG 功能描述:DC DC Cntrlr Single-OUT Step Down 5V to 60V Input 14-Pin DSO T/R |
| TLE6710Q | 功能描述:接口 - 专用 Combined Power Supply and Firing IC RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
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