參數(shù)資料
型號(hào)： PTH05050WAZ
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 PACKAGE-6
文件頁(yè)數(shù)： 4/24頁(yè)
文件大?。?/td> 1147K
代理商： PTH05050WAZ
Soft-Start Power Up
5 V
CIN
1,000
F
+
COUT
330
F
+
GND
3.3 V
PTH05020W
7
10
4
5
6
2
3
9
Track
VIN
VO
GND
Inhibit
1
Up
Dn
Adjust
Sense
RSET, 698
0.1 W, 1%
8
Vin (1 V/Div)
Vout (1 V/Div)
Iin (5 A/Div)
5 ms/div
Over-Current Protection
SLTS213E – MAY 2003 – REVISED MARCH 2009............................................................................................................................................................ www.ti.com
The Auto-Track feature allows the power-up of multiple 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
be directly connected to the input voltage, Vin (see Figure 6).
Figure 6.
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.
Figure 7.
From the moment a valid input voltage is applied, the soft-start control introduces a short time delay (typically
5ms-10ms) before allowing the output voltage to rise. The output then progressively rises to the module’s
setpoint voltage. Figure 7 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, with Auto-Track 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.
For protection against load faults, all modules incorporate output over-current protection. Applying a load that
exceeds the regulator's over-current threshold will cause the regulated output to shut down. Following shutdown
a module will periodically attempt to recover by initiating a soft-start power-up. This is described as a hiccup
mode of operation, whereby the module continues in a 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.
12
Copyright 2003–2009, Texas Instruments Incorporated
Product Folder Link(s) :PTH05050W
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參數(shù)描述
PTH05050WAZT 功能描述:DC/DC轉(zhuǎn)換器 4.5-5.5Vin 3.6V 6A 0.870" x0.495"x0.335 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:
PTH05050Y 制造商:TI 制造商全稱:Texas Instruments 功能描述:6-A Non-Isolated DDR/QDR Memory Bus Termination Modules
PTH05050YAD 功能描述:DC/DC轉(zhuǎn)換器 10.8W 5VDC .55-1.8V Through-Hole 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:
PTH05050YADT 制造商:ARTESYN 制造商全稱:Artesyn Technologies 功能描述:DC-DC CONVERTERS Non-isolated DDR/QDR Memory Bus Termination Module
PTH05050YAH 功能描述:DC/DC轉(zhuǎn)換器 6A 5V-In Bus Term Pwr Mdl for DDR/QDR 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:
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