- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄43901 > L6732 (STMICROELECTRONICS) SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 PDF資料下載
參數(shù)資料
| 型號(hào)： | L6732 |
| 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)： | 5/37頁 |
| 文件大小： | 898K |
| 代理商： | L6732 |
第1頁第2頁第3頁第4頁當(dāng)前第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁
L6732
Device description
13/37
5.5
Error amplifier
5.6
Soft-start
When both VCC and VIN are above their turn-ON thresholds (VIN is monitored by the OCH
pin) the start-up phase takes place. Otherwise the SS pin is internally shorted to GND. At
start-up, a ramp is generated charging the external capacitor CSS with an internal current
generator. The initial value for this current is 35 A and charges the capacitor up to 0.5 V.
After that it becomes 10 A until the final charge value of approximately 4 V (see Figure 6).
The output of the error amplifier is clamped with this voltage (VSS) until it reaches the
programmed value. No switching activity is observable if VSS is lower than 0.5 V and both
MOSFETs are OFF. When VSS is between 0.5 V and 1.1 V the low-side MOSFET is turned
on because the comp signal is lower than the valley of the triangular wave and so the duty-
cycle is 0 %. As VSS reaches 1.1 V (i.e. the oscillator triangular wave inferior limit) even the
high-side MOSFET begins to switch and the output voltage starts to increase. The L6732
can only source current during the soft-start phase in order to manage the pre-bias start-up
applications. This means that when the start-up occurs with output voltage greater than 0V
(pre-bias startup), even when Vss is between 0.5 V and 1.1 V the low-side MOSFET is kept
OFF (see Figure 7 and Figure 8).
Figure 5.
Error amplifier reference
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6732TR | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6732_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification |
| L6732_0906 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification |
| L6732C | 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| L6732CTR | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Step-Dwn Controller RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6732TR | 功能描述:DC/DC 開關(guān)控制器 VOLTAGE REGULATOR RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。