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參數(shù)資料
| 型號(hào)： | L6732TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | LEAD FREE, HTSSOP-16 |
| 文件頁數(shù)： | 11/37頁 |
| 文件大?。?/td> | 898K |
| 代理商： | L6732TR |
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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
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| L6733 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Advanced modular synchronous PWM controller |
| L6733TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Advanced modular synchronous PWM controller |
| L6738 | 功能描述:電流型 PWM 控制器 Single-Phase SD Cont 5V to 12V bus 1.5V RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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| L6738ATR | 功能描述:電流型 PWM 控制器 Single Phase PWM CNTRL Light-Load EFF RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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