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參數(shù)資料
| 型號： | PIP202-12M |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | DC to DC converter powertrain |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PQCC68 |
| 封裝： | 10 X 10 X 0.85 MM, PLASTIC, HVQFN-68 |
| 文件頁數(shù)： | 11/20頁 |
| 文件大?。?/td> | 156K |
| 代理商： | PIP202-12M |
Philips Semiconductors
PIP202-12M
DC to DC converter powertrain
Product data
Rev. 01 — 15 July 2002
11 of 20
9397 750 10031
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 (V
SSO
) must be connected to the decoupling capacitor
(C
in
) before joining the ground plane. Otherwise, the switching noise on V
SSO
will
couple into the control circuit ground (V
SSC
).
2. The control circuit supply must be filtered using a resistor-capacitor (RC) filter.
The values shown in
Figure 12
are suitable for most applications.
3. It is essential that the V
SSC
(signal ground) connection at the device is not
connected in the current return path between the V
SSO
(power ground)
connection at the device and the V
DDO
input capacitor.
4. It is also essential that the input to the V
DDC
(logic power) filter is not connected in
the current path between the V
DDO
(conversion power) connection at the device.
11.4 Switching frequency
A high operating frequency reduces the size and number of capacitors needed to
filter the output current, and also reduces the size of the output inductors. The
disadvantage, however 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 PIP202-12M from
4 W to 6 W, at an output current of 20 A in each PIP202-12M.
The maximum switching frequency is limited by thermal considerations, the
dissipation in the PIP202-12M device(s) and the thermal resistance from junction to
ambient.
11.5 Thermal design
The PIP202-12M has three pads on its underside. These are designated PAD1, PAD2
and PAD3 (
Figure 2
). PAD1 is connected to V
DDO
, PAD2 is connected to V
SSC
and
PAD3 is connected to VO. In addition to providing low inductance electrical
connections, these pads conduct heat away efficiently from the MOSFETs and
control IC to the printed-circuit board. The thermal resistance from junction to
printed-circuit board is approximately 5 K/W. In order to take full advantage of the low
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
μ
F
Cin
signal ground
power ground
input voltage
from PWM controller
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PDF描述 |
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| PIP3105-P | Logic level TOPFET |
| PIP3115-B | KPSE 26C 26#20 SKT PLUG |
| PIP3117-B | Logic level TOPFET |
| PIP3118-B | Logic level TOPFET |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| PIP202-12M-2,518 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 TAPE7 MOSFET RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| PIP20-5,08 | 功能描述:可插拔接線端子 PCB Hdr, 45 Deg, 5,08 PitchClosed End,20pole,12A,300V,Grn RoHS:否 制造商:Phoenix Contact 產(chǎn)品:Plugs 系列:PTS 端接類型:Spring Cage 位置/觸點數(shù)量:5 線規(guī)量程:26-14 節(jié)距:5 mm 電流額定值:10 A 電壓額定值:250 V 安裝風(fēng)格: 安裝角: 觸點電鍍: |
| PIP206 | 制造商:SENSITRON 制造商全稱:Sensitron 功能描述:Transient Voltage Suppressor, Unidirectional |
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