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參數(shù)資料
| 型號(hào)： | UCC3830DWP-4 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 5-Bit Microprocessor Power Supply Controller |
| 中文描述： | 5位微處理器電源控制器 |
| 文件頁數(shù)： | 8/10頁 |
| 文件大小： | 419K |
| 代理商： | UCC3830DWP-4 |
8
UCC3830-4/-5/-6
Choosing the Input Capacitor
The input capacitors are chosen primarily based on their
switching frequency RMS current handling capability and
their voltage rating.
The input capacitors must handle
virtually all of the RMS current at the switching fre-
quency, even if the circuit does not have an input induc-
tor.
The switching current in the input capacitors
appears as shown in Figure 5.
The amount of RMS current in an Aluminum Electrolytic
capacitor has a strong impact on the reliability and life-
time of the capacitor.
Other factors which affect the life
of an input capacitor are internal heat rise, external air-
flow, the amount of time that the circuit operates at maxi-
mum current and the operating voltage.
The curves in
Figure 6 show the RMS current handled by the total input
capacitance in typical VRM circuits delivering 1.8V to
2.8V and powered from 5V.
Related Publications
U-156 and U-157 are Unitrode Application Notes describ-
ing the operation of the UC3886 and the UC3886/
UC3910 together in a Pentium Pro application.
Typical Application
The UCC3830-x is ideal for converting the 5.0V system
bus into the required Pentium Pro bus voltage. The
3.3V system bus can also be converted using the
UCC3830-x when the Pentium Pro requires lower bus
voltages.
APPLICATION INFORMATION (cont.)
Table I. Parts list.
REFERENCE
DESIGNATOR
U1
DESCRIPTION
PACKAGE
Unitrode UCC3830DWP-5 DAC/PWM
Sanyo 6MV1500GX, 1500
μ
F, 6.3V, Aluminum Electrolytic
Sanyo 6MV1500GX, 1500
μ
F, 6.3V, Aluminum Electrolytic
Sanyo 6MV1500GX, 1500
μ
F, 6.3V, Aluminum Electrolytic
Sanyo 6MV1500GX, 1500
μ
F, 6.3V, Aluminum Electrolytic
Sprague/Vishay 595D475X0016A2B, 4.7
μ
F 16V Tantalum
Sanyo 6MV1500GX, 1500
μ
F, 6.3V, Aluminum Electrolytic
Sanyo 6MV1500GX, 1500
μ
F, 6.3V, Aluminum Electrolytic
Sanyo 6MV1500GX, 1500
μ
F, 6.3V, Aluminum Electrolytic
Sanyo 6MV1500GX, 1500
μ
F, 6.3V, Aluminum Electrolytic
Sanyo 6MV1500GX, 1500
μ
F, 6.3V, Aluminum Electrolytic
Sprague 593D107X9010D2, 100
μ
F, 6.3V Tantalum
0.10
μ
F Ceramic
0.01
μ
F Ceramic
0.01
μ
F Ceramic
0.01
μ
F Ceramic
1000pF Ceramic
0.10
μ
F Ceramic
33pF NPO Ceramic
SOIC-20 Wide
C1
10x20mm Radial Can
C2
10x20mm Radial Can
C3
10x20mm Radial Can
C4
10x20mm Radial Can
C5
SPRAGUE Size A
C6
10x20mm Radial Can
C7
10x20mm Radial Can
C8
10x20mm Radial Can
C9
10x20mm Radial Can
C10
10x20mm Radial Can
C11
EIA Size D SMD
C12
1206 SMD
C13
0603 SMD
C14
0603 SMD
C15
0603 SMD
C16
0603 SMD
C17
1206 SMD
C18
0603 SMD
C19
1500pF Ceramic
0603 SMD
C20
82pF NPO Ceramic
0.10
μ
F Ceramic
0.10
μ
F Ceramic
International Rectifier 32CTQ030 30V, 30A Schottky Diode
Micrometals T50-52B, 10 Turns #16AWG, 4.5
μ
H
0603 SMD
C21
1206 SMD
C22
1206 SMD
CR1
TO-220AB
L1
Toroid
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UCC3830DWP-5 | 5-Bit Microprocessor Power Supply Controller |
| UCC3830DWP-6 | 5-Bit Microprocessor Power Supply Controller |
| UCC3830PWM-4 | 5-Bit Microprocessor Power Supply Controller |
| UCC3830PWM-5 | 5-Bit Microprocessor Power Supply Controller |
| UCC3830PWM-6 | 5-Bit Microprocessor Power Supply Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UCC3830DWP-5 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:5-Bit Microprocessor Power Supply Controller |
| UCC3830DWP-6 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:5-Bit Microprocessor Power Supply Controller |
| UCC3830DWTR-4 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
| UCC3830DWTR-5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| UCC3830DWTR-6 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
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