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參數(shù)資料
| 型號： | L6722TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, QCC36 |
| 封裝： | 6 X 6 MM, 1 MM PITCH, VFQFPN-36 |
| 文件頁數(shù)： | 7/34頁 |
| 文件大?。?/td> | 421K |
| 代理商： | L6722TR |
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Obsolete
Product(s)
- Obsolete
Product(s)
L6722
5 Driver section
15/34
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Drivers' power is the power needed by the driver to continuously switch on and off the
external mosfets; it is a function of the switching frequency and total gate charge of the
selected mosfets. It can be quantified considering that the total power PSW dissipated to
switch the mosfets (easy calculable) is dissipated by three main factors: external gate
resistance (when present), intrinsic mosfet resistance and intrinsic driver resistance. This
last term is the important one to be determined to calculate the device power dissipation.
The total power dissipated to switch the mosfets results:
External gate resistors helps the device to dissipate the switching power since the same power
PSW will be shared between the internal driver impedance and the external resistor resulting in
a general cooling of the device.
SW
3F
SW
Q
GHS
V
BOOT
Q
GLS
V
CC
+
(
=
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6725 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Vltg Mode PWM 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: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6725_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Voltage mode PWM controller with bootstrap anti-discharging system |
| L6725A | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Vltg Mode PWM 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: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6725ATR | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Step-Down 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: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6725TR | 功能描述:電壓模式 PWM 控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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