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参数资料
| 型号： | PTH08T240WAZ |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-11 |
| 文件页数： | 16/39页 |
| 文件大小： | 1366K |
| 代理商： | PTH08T240WAZ |
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Soft-Start Power Up
10
Track
GND
3,4
VI
CI
2
PTH08T240W/241W
t Time 4ms/div
VO (2V/div)
V (5V/div)
I
II (2 A/div)
www.ti.com ................................................................................................................................................... SLTS264J – NOVEMBER 2005 – REVISED JUNE 2009
The Auto-Track feature allows the power-up of multiple PTH/PTV 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
Figure 21. Defeating the Auto-Track Function
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
2 ms–10 ms) before allowing the output voltage to rise.
Figure 22. Power-Up Waveform
The output then progressively rises to the module’s setpoint voltage. Figure 22 shows the soft-start power-up
characteristic of the PTH08T240/241W operating from a 12-V input bus and configured for a 3.3-V output. The
waveforms were measured with a 10-A constant current 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.
Copyright 2005–2009, Texas Instruments Incorporated
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Product Folder Link(s): PTH08T240W PTH08T241W
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PDF描述 |
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| PTH08T240WAH | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTH08T240WAZT | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTH08T250WAST | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTH08T250WAD | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTH08T250WAS | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PTH08T240WAZ | 制造商:Texas Instruments 功能描述:DC/DC Converter |
| PTH08T240WAZT | 功能描述:DC/DC转换器 10A 4.5-14V-Input Wide-Out Adj Pwr Mdl RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PTH08T241W | 制造商:TI 制造商全称:Texas Instruments 功能描述:10-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TURBOTRANS |
| PTH08T241WAD | 功能描述:DC/DC转换器 10A 4.5V to 14V Inp Ceramic Cap Version RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PTH08T241WAS | 功能描述:DC/DC转换器 10A 4.5V to 14V Inp Ceramic Cap Version RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
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