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参数资料
| 型号： | PIP201-12M |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC68 |
| 封装： | 10 X 10 X 0.85 MM, PLASTIC, HVQFN-68 |
| 文件页数： | 15/20页 |
| 文件大小： | 333K |
| 代理商： | PIP201-12M |
Philips Semiconductors
PIP201-12M
DC to DC converter powertrain
Product data
Rev. 02 — 18 July 2002
4 of 21
9397 750 09833
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
When the input voltage is LOW and current is owing in the inductor, the upper
MOSFET must be off and the lower MOSFET must be on. Current ows from the
power ground (VSSO), through the lower MOSFET and the inductor (Lout), to the
output.
Finally, when switching between states, both MOSFETs must not be on at the same
time.
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 Bootstrap diode
A bootstrap diode is integrated into the design of the PIP201-12M between VDDC and
CB.
Fig 4.
Input, output and gate drive waveforms of a synchronous DC to DC converter
output stage.
input voltage
output voltage
upper MOSFET
gate drive
lower MOSFET
gate drive
03ag35
delay
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PIP201-12M-3 | 制造商:PHILIPS 制造商全称: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 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:20 系列:SIMPLE SWITCHER® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12 |
| PIP202-12M | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:DC to DC converter powertrain |
| PIP202-12M-2 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:DC-to-DC converter powertrain |
| PIP202-12M-2 /T3 | 功能描述:直流/直流开关转换器 TAPE7 MOSFET RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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