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參數(shù)資料
| 型號： | PTH04040WAD |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, DIP-20 |
| 文件頁數(shù)： | 6/25頁 |
| 文件大?。?/td> | 535K |
| 代理商： | PTH04040WAD |
V
(1V/Div)
O
V (1V/Div)
I
I (5 A/Div)
I
t-Time=5 msec/Div
5 V
+
C
330 F
O
m
C
1,000 F
I
m
+
GND
3.3 V
R
698
0.1W,1%
SET
W
PTH05020W
7
10
4
5
6
2
3
9
Track
VI
VO
GND
Inhibit
1
Up
Dn
Sense
Adjust
8
SLTS238C – SEPTEMBER 2005 – REVISED JUNE 2010
www.ti.com
FEATURES OF THE PTH FAMILY OF NONISOLATED WIDE OUTPUT ADJUST POWER
MODULES
POLA COMPATIBILITY
The PTH/PTV family of nonisolated, wide-output adjustable power modules are optimized for applications that
require a flexible, high performance module that is small in size. Each of these products are POLA compatible.
POLA-compatible products are produced by a number of manufacturers, and offer customers advanced,
nonisolated modules with the same footprint and form factor. POLA parts are also assured to be interoperable,
thereby providing customers with second-source availability.
Many of the POLA-compatible parts include a feature called Auto-Track. Auto-Track was specifically designed
to simplify the task of sequencing the supply voltages in a power system. This and other features are described
the following sections.
SOFT-START POWER UP
The Auto-Track feature allows the power-up of multiple PTH modules to be directly controlled from the Track pin.
However in a stand-alone configuration, or when the Auto-Track feature is not being used, the Track pin should
Figure 11. Power-Up Application Circuit
Figure 12. Power-Up Waveforms
When the Track pin is connected to the input voltage the Auto-Track function is permanently disengaged. This
allows the module to power up entirely under the control of its internal soft-start circuitry. When power up is
under soft-start control, the output voltage rises to the set-point at a quicker and more linear rate.
From the moment a valid input voltage is applied, the soft-start control introduces a short time delay (typically
5 ms–10 ms) before allowing the output voltage to rise. The output then progressively rises to the module’s
setpoint voltage. Figure 12 shows the soft-start power-up characteristic of the 22-A output product
(PTH05020W), operating from a 5-V input bus and configured for a 3.3-V output. The waveforms were measured
with a 5-A resistive load and the Auto-Track feature disabled. The initial rise in input current when the input
voltage first starts to rise is the charge current drawn by the input capacitors. Power-up is complete within 15 ms.
14
Copyright 2005–2010, Texas Instruments Incorporated
Product Folder Link(s): PTH04040W
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PTH04040WAH | 功能描述:DC/DC轉(zhuǎn)換器 60A 3.3/5V-In Wide Output Adj Pwr Mdl RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PTH04040WAS | 功能描述:DC/DC轉(zhuǎn)換器 60A 3.3/5V-In Wide Output Adj Pwr Mdl RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PTH04040WAST | 功能描述:DC/DC轉(zhuǎn)換器 2.95-5.5Vin 0.8-3.6V 60A RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PTH04040WAZ | 功能描述:DC/DC轉(zhuǎn)換器 60A 3.3/5V-In Wide Output Adj Pwr Mdl RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PTH04040WAZT | 功能描述:DC/DC轉(zhuǎn)換器 2.95-5.5Vin 0.8-3.6V 2.045" x1.045"x0.357 RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
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