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參數資料
| 型號： | PIP201-12M |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 模擬信號調理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC68 |
| 封裝： | 10 X 10 X 0.85 MM, PLASTIC, HVQFN-68 |
| 文件頁數： | 2/20頁 |
| 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
10 of 21
9397 750 09833
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
The typical dissipation in each PIP201-12M as a function of output current, is given in
Figure 6. At 500 KHz and 12.5 A output current, the dissipation in each PIP201-12M
is 2.7 W. The typical thermal resistance from junction to ambient is given in Table 4.
With thermal vias and forced air cooling, the thermal resistance of each PIP201-12M
from junction to ambient is15 K/W. Assuming a maximum ambient temperature of
55
°C, the maximum junction temperature (T
j(max)) is given by:
(1)
The thermal resistance between the junction and the printed-circuit board is 5 K/W.
Therefore, the maximum printed-circuit board temperature (Tpcb(max)) is given by:
(2)
11.2 Advantages of an integrated driver
One problem in the design of low-voltage, high-current DC to DC converters using
discrete components, is stray inductance between the various circuit elements.
Stray inductance in the gate drive circuit increases the switching times of the
MOSFETs and causes high-frequency oscillation of the gate voltage.
Stray inductance in the high-current loop between VDDO and VSSO causes switching
losses and electromagnetic interference. In discrete designs, high-frequency electric
and magnetic elds radiate from PCB tracks and couple into adjacent circuits.
By integrating the power MOSFETs and their drive circuits into a single package,
stray inductance is virtually eliminated, resulting in a compact, efcient design.
In discrete designs, the delays in the MOSFET drivers must be long enough to
ensure no cross-conduction even when using the slowest MOSFETs. Use of an
integrated driver allows the propagation delays in the MOSFET drivers to be precisely
matched to the MOSFETs. This minimizes switching losses and eliminates
cross-conduction whilst allowing the circuit to operate at a higher frequency.
11.3 External connection of power and signal lines
A major benet of the PIP201-12M module is the ability to switch the internal power
MOSFETs faster than a DC-DC converter built from discrete components. This
reduces switching losses and increases system efciency but it also results in higher
transient voltages on the device supply lines (VDDO and VSSO). This is due to the high
rate of change of current (dI/dt) through the combined parasitic inductance of the pcb
tracks and the decoupling capacitors.
To minimize the amplitude of these transients, decoupling capacitors must be placed
between VDDO and VSSO, as close as possible to the device pins. Low inductance,
chip ceramic capacitors are recommended.
T
j max
()
P
tot
R
th j
a
–
()
×
T
amb
+
2.7
15
55
+
×
95.5
°C
==
=
T
pcb max
()
T
j max
()
P
tot
R
th j
pcb
–
()
×
–
95.5
2.7
5
×
–
82
°C
==
=
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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: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 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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