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參數(shù)資料
| 型號(hào)： | PTB48520WAS |
| 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： | DIP-10 |
| 文件頁(yè)數(shù)： | 4/18頁(yè) |
| 文件大?。?/td> | 427K |
| 代理商： | PTB48520WAS |
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Typical Power-Up Sequencing Configuration
t 20 ms/div
VOBus (1 V/div)
td = 20 ms
V(POL)2 (1 V/div)
VOSeq (1 V/div)
V(POL)1 (1 V/div)
PTB48520W
SLTS233A–NOVEMBER 2004–REVISED APRIL 2005
Figure 10 shows how the converter (U1) can be configured to provide two 3.3-V sources, that allow it to both
power and sequence with one or more non-isolated POL modules. The example shows two PTH03050W
modules (U2 and U3), each rated for up 6 A of output current. Additional voltages, as well as modules with a
higher output current capability can also be specified to meet a specific application. The number of downstream
modules, their respective output voltage and load current rating is only limited by the amount of current available
at the VO Bus output. This is 25 A, less the current allocated to the load circuit via the VO Seq output.
The output voltage adjust range is 1.8 V to 3.6 V, which is compatible with the 3.3-V input non-isolated POL
modules. In these applications, the output voltage must always be set to 3.3 V (R1 = 887 ). Note that this sets
the output voltage of both the VO Bus and VO Seq outputs. The 3.3-V input non-isolated modules, U2 and U3,
can be set to any voltage over the range, 0.8 V to 2.5 V. In this example, they are set to 2.5 V (R2 = 2.21 k)
and 1.8 V (R3 = 5.49 k), respectively. Figure 9 shows the power-up waveforms from Figure 10 when the Track
control input to all three modules are simply connected together.
The converter provides input power to the downstream non-isolated modules via the VO Bus output. This output
rises first to allow the downstream modules to complete their power-up initialization. VO Seq (3.3 V), and the
outputs V(POL)1 (2.5 V) and V(POL)2 (1.8 V), supply the load circuit. These three outputs are controlled by the track
control voltage, which the converter holds at ground potential for 20 ms. When the track control voltage is finally
allowed to rise, the three outputs rise simultaneously to their respective set-point voltages.
Figure 9. Power-Up Waveforms with POL Modules
12
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| PTB48520WAZ | 功能描述:DC/DC轉(zhuǎn)換器 25A 48V Input Iso DC/DC Converter 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: |
| PTB48530AAH | 功能描述:PTB48530AAH RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:- 設(shè)計(jì)資源:VI-200, VI-J00 Design Guide, Appl Manual 標(biāo)準(zhǔn)包裝:1 系列:* 類型:隔離 輸出數(shù):1 電壓 - 輸入（最小）:55V 電壓 - 輸入（最大）:100V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:* 電源（瓦） - 制造商系列:200W 電壓 - 隔離:* 特點(diǎn):* 安裝類型:通孔 封裝/外殼:9-FinMod 尺寸/尺寸:4.60" L x 1.86" W x 0.79" H（116.8mm x 47.2mm x 20.1mm） 包裝:散裝 工作溫度:-55°C ~ 85°C 效率:* 電源（瓦特）- 最大:* |
| PTB48530AAS | 功能描述:PTB48530AAS RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:- 設(shè)計(jì)資源:VI-200, VI-J00 Design Guide, Appl Manual 標(biāo)準(zhǔn)包裝:1 系列:* 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?55V 電壓 - 輸入（最大）:100V Voltage - Output 1:15V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:* 電源（瓦） - 制造商系列:200W 電壓 - 隔離:* 特點(diǎn):* 安裝類型:通孔 封裝/外殼:9-FinMod 尺寸/尺寸:4.60" L x 1.86" W x 0.79" H（116.8mm x 47.2mm x 20.1mm） 包裝:散裝 工作溫度:-55°C ~ 85°C 效率:* 電源（瓦特）- 最大:* |
| PTB48530AAZ | 功能描述:CONV DC-DC 48V 27W DUAL 7-SMD RoHS:是 類別:電源 - 板載 >> DC DC Converters 系列:PTB48530A 標(biāo)準(zhǔn)包裝:500 系列:Econoline R0.25S 類型:隔離 輸出數(shù):1 電壓 - 輸入（最小）:21.6V 電壓 - 輸入（最大）:26.4V Voltage - Output 1:3.3V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:76mA 電源（瓦） - 制造商系列:0.25W，1/4W 電壓 - 隔離:1kV（1000V） 特點(diǎn):- 安裝類型:表面貼裝 封裝/外殼:8-DIP SMD 模塊 尺寸/尺寸:0.49" L x 0.42" W x 0.28" H（12.8mm x 10.7mm x 7.0mm） 包裝:帶卷 (TR) 工作溫度:-40°C ~ 100°C 效率:60 ~ 70% 電源（瓦特）- 最大:0.25W |
| PTB48530BAS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
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