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參數(shù)資料
| 型號： | PIP201-12M |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC68 |
| 封裝： | 10 X 10 X 0.85 MM, PLASTIC, HVQFN-68 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 333K |
| 代理商： | PIP201-12M |
Philips Semiconductors
PIP201-12M
DC to DC converter powertrain
Product data
Rev. 02 — 18 July 2002
11 of 21
9397 750 09833
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
To protect the control circuit from the transient voltages, the following precautions
must be taken. Refer to Figure 12.
1. The output stage ground (VSSO) must be connected to the decoupling capacitor
(Cin) before joining the ground plane. Otherwise, the switching noise on VSSO will
couple into the control circuit ground (VSSC).
2. The control circuit supply must be ltered using a resistor-capacitor (RC) lter.
The values shown in Figure 12 are suitable for most applications.
3. It is essential that the VSSC (signal ground) connection at the device is not
connected in the current return path between the VSSO (power ground)
connection at the device and the VDDO input capacitor.
4. It is also essential that the input to the VDDC (logic power) lter is not connected in
the current path between the VDDO (conversion power) connection at the device.
11.4 Switching frequency
A high operating frequency reduces the size and number of capacitors needed to
lter the output current, and also reduces the size of the output inductors. The
disadvantage is higher dissipation due to switching and MOSFET driver losses. For
example, doubling the operating frequency of the circuit in Figure 11 from 500 kHz to
1 MHz would increase the power dissipation in each PIP201-12M from 2.7 W to
4.5 W, at an output current of 12.5 A in each PIP201-12M.
The maximum switching frequency is limited by thermal considerations, the
dissipation in the PIP201-12M device(s) and the thermal resistance from junction to
ambient.
11.5 Thermal design
The PIP201-12M has three pads on its underside. These are designated PAD1, PAD2
PAD3 is connected to VO. In addition to providing low inductance electrical
connections, these pads conduct heat away efciently from the MOSFETs and
control IC to the printed-circuit board. The thermal resistance from junction to
Fig 12. External connection of power and signal lines.
VI
VDDC
VSSC
VO
VDDO
control circuit
supply (12 V)
output stage supply voltage
VSSO
CB
03ae27
output
100
nF
Lout
Cout
10
1
F
Cin
signal ground
power ground
input voltage
from PWM controller
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相關(guān)代理商/技術(shù)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(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):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(yīng)商設(shè)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(guān)轉(zhuǎn)換器 TAPE7 MOSFET RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT |
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