参数资料
型号: L6732TR
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
封装: LEAD FREE, HTSSOP-16
文件页数: 11/37页
文件大小: 898K
代理商: L6732TR
L6732
Device description
19/37
other one will be the slave. The Slave controller will increase its switching frequency
reducing the ramp amplitude proportionally and then the modulator gain will be increased.
To avoid a huge variation of the modulator gain, the best way to synchronize two or more
devices is to make them work at the same switching frequency and, in any case, the
switching frequencies can differ for a maximum of 50 % of the lowest one. If, during
synchronization between two (or more) L6732, it's important to know in advance which the
master is, it's timely to set its switching frequency at least 15 % higher than the slave. Using
an external clock signal (fEXT) to synchronize one or more devices that are working at a
different switching frequency (fSW) it is recommended to follow the below formula:
Equation 5
The phase shift between master and slaves is approximately 180 °.
Figure 13.
Synchronization: PWM signal
Figure 14.
Synchronization: Inductor currents
SW
EXT
SW
f
3
,
1
相关PDF资料
PDF描述
L6788ATR 3-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40
L6788A 3-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40
L6910A 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
L6910GTR 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
L6917BD SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO28
相关代理商/技术参数
参数描述
L6733 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Advanced modular synchronous PWM controller
L6733TR 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Advanced modular synchronous PWM controller
L6738 功能描述:电流型 PWM 控制器 Single-Phase SD Cont 5V to 12V bus 1.5V RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14
L6738A 功能描述:电流型 PWM 控制器 Single-phase PWM Light Load EFF RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14
L6738ATR 功能描述:电流型 PWM 控制器 Single Phase PWM CNTRL Light-Load EFF RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14