- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98066 > PTV05010WAH (TEXAS INSTRUMENTS INC) 1-OUTPUT DC-DC REG PWR SUPPLY MODULE PDF資料下載
參數(shù)資料
| 型號(hào)： | PTV05010WAH |
| 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： | SIP-8 |
| 文件頁(yè)數(shù)： | 3/19頁(yè) |
| 文件大小： | 462K |
| 代理商： | PTV05010WAH |
第1頁(yè)第2頁(yè)當(dāng)前第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)
www.ti.com
Overcurrent Protection (OCP)
Output On/Off Inhibit
VI
L
O
A
D
1=Inhibit
GND
VO
Q1
BSS138
RSET
C1
C3
C2
PTV05010W
VI
VO
GND
Inhibit
V Adj
O
Track
SLTS242A – FEBRUARY 2005 – REVISED OCTOBER 2005
From the moment a valid input voltage is applied, the soft-start control introduces a short time delay (typically
8ms to 15ms) before allowing the output voltage to rise. The output then progressively rises to the module
set-point voltage. Figure 8 shows the soft-start power-up characteristic of the PTV05010W, operating from a 5-V
input bus and configured for a 1.8-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 25 ms.
For protection against load faults, the modules incorporate output overcurrent protection. Applying a load that
exceeds the overcurrent threshold causes the regulated output to shut down. Following shutdown, a module
periodically attempts to recover by initiating a soft-start power up. This is described as a hiccup mode of
operation, whereby the module continues in the cycle of successive shutdown and power up until the load fault is
removed. During this period, the average current flowing into the fault is significantly reduced. Once the fault is
removed, the module automatically recovers and returns to normal operation.
For applications requiring output voltage on/off control, the modules incorporate an output Inhibit control pin. The
inhibit feature can be used wherever there is a requirement for the output voltage from the regulator to be turned
off.
The power modules function normally when the Inhibit input is left open-circuit, providing a regulated output
whenever a valid source voltage is connected to VI with respect to GND.
Figure 9 shows the typical application of the inhibit function. Note the discrete transistor (Q1). The Inhibit input
has its own internal pullup (see footnotes to electrical characteristics table). The input is not compatible with TTL
logic devices. An open-collector (or open-drain) discrete transistor is recommended for control.
Figure 9. On/Off Inhibit Application Circuit
Turning Q1 on applies a low voltage to the Inhibit control and disables the output of the module. If Q1 is then
turned off, the module executes a soft-start power-up sequence. A regulated output voltage is produced within
25ms. Figure 10 shows the typical rise in both the output voltage and input current, following the turnoff of Q1.
The turnoff of Q1 corresponds to the rise in the waveform, Q1 VDS. The waveforms were measured with a 5-A
constant current load.
Copyright 2005, Texas Instruments Incorporated
11
Product Folder Link(s) :PTV05010W
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PTV08T250WAH | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTV08T250WAD | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTV12010WAD | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTV12010WAH | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PVX003A0X43-SRZ | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PTV05020 | 制造商:EMERSON-NETWORKPOWER 制造商全稱:Emerson Network Power 功能描述:DC-DC CONVERTERS |
| PTV05020W | 制造商:TI 制造商全稱:Texas Instruments 功能描述:18-A, 5-V INPUT NONISOLATED WIDE-OUTPUT ADJUST SIP MODULE |
| PTV05020WAD | 功能描述:DC/DC轉(zhuǎn)換器 64.8W 0.8-3.6V 18A 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(biāo)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(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| PTV05020WAH | 功能描述:DC/DC轉(zhuǎn)換器 18A 5VInput Non-Iso Wide-Adj SIP Module 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(biāo)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(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| PTV07RW25-187SA-S2 | 制造商:Amphenol Corporation 功能描述:TV 187C 187#23 SKT RECP HD |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。