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參數(shù)資料
| 型號： | NCP4330DR2G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | MOSFETs |
| 英文描述： | Post Regulation Driver |
| 中文描述： | BUF OR INV BASED MOSFET DRIVER, PDSO8 |
| 封裝： | LEAD FREE, DSO-8 |
| 文件頁數(shù)： | 11/18頁 |
| 文件大小： | 123K |
| 代理商： | NCP4330DR2G |
NCP4330
http://onsemi.com
11
LowSide Driver Stage
The timing diagram of page 2 portrays the sequencing
driven by the NCP4330.
The lowside drive is controlled by an internal
comparator that compares the C_ramp voltage to the internal
reference 2.5 V (1.0 V hysteresis). When the C_ramp
exceeds the 2.5 V reference, the comparator turns high
forcing the lowside MOSFET off. 100 ns later, the
highside MOSFET switches on.
When a reset signal is applied to the reset pin, the C_ramp
capacitor is grounded. As a consequence, the internal
comparator turns low and forces the lowside MOSFET on.
100 ns later, the highside MOSFET switches off.
The lowside drive is designed to drive on and off a 25 nC
gate charge power MOSFET, in 25 ns typical.
1. LowSide MOSFET Turn On:
In nominal operation, the body diode is already ON when
the lowside MOSFET turns on. The energy Qg to be
supplied is then approximately half the energy necessary if
the drain source voltage was high.
The necessary current capability is then:
1
2*25 nC
Ils
on
25 ns
, that is 500 mA.
Figure 28. LowSide MOSFET Turn ON
4.5010 M
4.5015 M
4.5020 M
Time in Secs
4.5025 M
4.5030 M
40.0
20.0
0
20.0
40.0
l
0
4.00
8.00
12.0
16.0
i
1.50
500 M
2.50
4.50
6.50
i
320
240
160
80.0
0
v
0
20.0
40.0
60.0
80.0
v
vin1
i(l1)
v(vsn)
irl
ls_drv
Vin
lind
LS_DRV
I
Q
V
Q
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NCP4330 | 300 W 80 PLUS ATX Reference Design |
| NCP4331DR2G | Synchronous Buck Controller for High Efficiency Post Regulation |
| NCP4331 | Synchronous Buck Controller for High Efficiency Post Regulation |
| NCP4420 | 6A High-Speed MOSFET Drivers |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP4331 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Synchronous Buck Controller for High Efficiency Post Regulation |
| NCP4331DBR2G | 功能描述:IC REG CTRLR BUCK PWM 16-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP（0.300"，7.62mm） 包裝:管件 產(chǎn)品目錄頁面:1316 (CN2011-ZH PDF) |
| NCP4331DR2G | 功能描述:功率驅(qū)動器IC PWM CONTROLLER RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| NCP433FCT2G | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:1.5A Ultra-Small Controlled Load Switch with Auto-Discharge Path |
| NCP434 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:2A Ultra-Small Controlled Load Switch with |
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