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參數(shù)資料
| 型號： | LM5046SQ |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 540 kHz SWITCHING FREQ-MAX, QCC28 |
| 封裝： | 5 X 5 MM, LLP-28 |
| 文件頁數(shù)： | 21/32頁 |
| 文件大?。?/td> | 888K |
| 代理商： | LM5046SQ |
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301478101
FIGURE 23. Circuit to Speed-up the Turn-off Process
Depending on the gate charge characteristics of the primary
FET, if it is required to speed up both the turn-on and the turn-
off time, a bipolar totem pole structure as shown in Figure
24 can be used. When LO1 goes high, the gate to source
current is sourced through the NPN transistor Q1 and similar
to the circuit shown in Figure 23 when LO1 goes low the PNP
transistor Q2 expedites the turn-off process.
301478102
FIGURE 24. Bipolar Totem Pole Arrangement
Alternatively, a low side gate driver such as LM5112 can be
utilized instead of the discrete totem pole. The LM5112 comes
in a small package with a 3A source and a 7A sink capability.
While driving the high-side FET, the HS1 acts as a local
ground and the boot capacitor between the BST and HS pins
acts as VCC.
www.national.com
28
LM5046
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相關(guān)代理商/技術(shù)參數(shù) |
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| LM5046SQ/NOPB | 功能描述:電流型 PWM 控制器 Phase-Shifted Full- Bridge PWM Cntrlr RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 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 |
| LM5046SQX | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM5046 Phase-Shifted Full-Bridge PWM Controller with Integrated MOSFET Drivers |
| LM5046SQX/NOPB | 功能描述:IC PWM CTRLR FULL BRIDG 28LLP RoHS:是 類別:集成電路 (IC) >> PMIC - AC-DC 轉(zhuǎn)換器，離線開關(guān) 系列:PowerWise® 標(biāo)準(zhǔn)包裝:1 系列:FPS™ 輸出隔離:隔離 頻率范圍:61kHz ~ 73kHz 輸入電壓:8 V ~ 26 V 輸出電壓:650V 功率（瓦特）:12W 工作溫度:-40°C ~ 115°C 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-MDIP 包裝:Digi-Reel® 其它名稱:FSL206MRBNFSDKR |
| LM505 | 制造商:LM TECHNOLOGIES 功能描述:ADAPTER BLUETOOTH NANO EDR 40M USB 制造商:LM TECHNOLOGIES 功能描述:BLUETOOTH ADAPTER, USB, BCM2045, EDR 制造商:LM TECHNOLOGIES 功能描述:BLUETOOTH ADAPTER, USB, BCM2045, 40M, EDR; Data Rate:2.166Mbps; Operating Temperature Min:-20C; Operating Temperature Max:75C; Operating Frequency Range:2.402GHz to 2.48GHz; Operating Temperature Range:-20C to +75C ;RoHS Compliant: Yes |
| LM5050-1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:High Side OR-ing FET Controller |
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