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參數(shù)資料
| 型號： | PIP201-12M |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 16/20頁 |
| 文件大小： | 319K |
| 代理商： | PIP201-12M |
Philips Semiconductors
PIP201-12M
DC to DC converter powertrain
Preliminary data
Rev. 01 — 24 January 2002
5 of 20
9397 750 09032
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
7.2 MOSFET driver function
The input, output and gate drive waveforms are shown in Figure 4. When the input
voltage goes HIGH, the gate drive to the lower MOSFET immediately goes LOW. This
causes the output current to ow through the source-drain diode of the lower
MOSFET. This causes output voltage to fall from zero to approximately
0.7 V.
After a delay, if the input voltage is still HIGH, the gate drive to the upper MOSFET
goes HIGH. This causes the output voltage to rise to the output stage supply voltage,
VDDO.
When the input voltage goes LOW, the gate drive to the upper MOSFET immediately
goes LOW. The output voltage falls from VDDO, until it is clamped by the source-drain
diode of the synchronous FET at approximately
0.7 V.
After a delay, if the input voltage is still LOW, the gate drive to the lower MOSFET
goes HIGH. The lower MOSFET turns on, and the output voltage rises from
0.7 V to
zero.
7.3 Three-state function
If the input voltage remains between the upper and lower switching thresholds for
longer than 144 ns (typical), both MOSFETs are turned off. This prevents the output
capacitor bank from discharging through the lower MOSFET.
Fig 4.
Input, output and gate drive waveforms of a synchronous DC-DC converter
output stage.
input voltage
output voltage
upper MOSFET
gate drive
lower MOSFET
gate drive
03ag35
delay
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PIP201-12M-3 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DC-to-DC converter powertrain |
| PIP201-12M-3,518 | 功能描述:IC REG BUCK SYNC ADJ 20A 68HVQFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:20 系列:SIMPLE SWITCHER® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:12V 輸入電壓:4 V ~ 60 V PWM 型:電壓模式 頻率 - 開關:52kHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 包裝:管件 供應商設備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
| PIP202-12M | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DC to DC converter powertrain |
| PIP202-12M-2 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DC-to-DC converter powertrain |
| PIP202-12M-2 /T3 | 功能描述:直流/直流開關轉換器 TAPE7 MOSFET RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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