参数资料
| 型号： | TLE6368R |
| 厂商： | Infineon Technologies |
| 文件页数： | 51/59页 |
| 文件大小： | 0K |
| 描述： | IC PS SYSTEM MULTI VOLT PDSO-36 |
| 标准包装： | 800 |
| 应用： | 电源，汽车应用 |
| 输入电压： | 5.5 V ~ 60 V |
| 输出数： | 3 |
| 输出电压： | 2.6V，3.3V，5V |
| 工作温度： | -40°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-BSSOP（0.433"，11.00mm 宽）裸露焊盘 |
| 供应商设备封装： | PG-DSO-36 |
| 包装： | 带卷 (TR) |
| 配用： | DEMOBOARDTLE6368IN-ND - BOARD DEMO FOR TLE 6368 |
| 其它名称： | SP000014666 TLE6368RNT TLE6368RT |
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TLE 6368 / SONIC
5.2
Buck converter circuit
A typical choice of external components for the buck converter is given in figure 14. For
basic operation of the buck converter the input capacitor C I2 , the bootstrap capacitor
C BTP , the catch diode D B , the inductance L B , the output capacitor C B and the charge
pump capacitors C FLY and C CCP are necessary. A Zener Diode at the FB/L_IN input is
recommended as a protection against overvoltage spikes.
The additional components shown on top of the circuit lower the electromagnetic
emission (L I , C I1 , C I3 , R Slew ) and the switching losses (R Boost , C Boost , D Boost ). For 12V
battery systems the switching loss minimization feature might not be used. The Boost pin
(33) is connected directly to the IN pins (32, 30) in that case and the components R Boost ,
C Boost and D Boost are left away.
5.2.1
Buck inductance (L B ) selection:
( V I – V OUT ) ? V OUT
f SW ? V I ? ? I
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.
As a rule of thumb this current ripple ? I is chosen between 10% and 50% of the load
current.
L = ---------------------------------------------------
For optimum operation of the control loop of the Buck converter the inductance value
should be in the range indicated in section 3.3, recommended operation range.
When picking finally the inductance of a certain supplier (Epcos, Coilcraft etc.) the
saturation current has to be considered. With a maximum current limit of the Buck
converter of 3.2A an inductance with a minimum saturation current of 3.2A has to be
chosen.
Data Sheet
51
Rev. 2.2, 2006-12-01
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相关代理商/技术参数 |
参数描述 |
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| TLE6389 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:Step - Down DC/DC Controller |
| TLE6389_07 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:Step-Down DC/DC Controller |
| TLE6389-2G V50 | 功能描述:DC/DC 开关控制器 Step-Dwn DC/DC CTRLR 5V 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 |
| TLE63892GV | 功能描述:DC/DC 开关控制器 DC/DC CONVERTER 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 |
| TLE6389-2GV | 功能描述:DC/DC 开关控制器 Step-Dwn DC/DC CTRLR 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 |
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