- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98063 > PTB78520WAD (TEXAS INSTRUMENTS INC) 1-OUTPUT DC-DC REG PWR SUPPLY MODULE PDF資料下載
參數(shù)資料
| 型號： | PTB78520WAD |
| 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-10 |
| 文件頁數(shù)： | 13/15頁 |
| 文件大?。?/td> | 443K |
| 代理商： | PTB78520WAD |
Application Notes
For technical support and further information visit http://power.ti.com
Output Voltage Adjustment
The ‘VO Adjust’ control sets the output voltages to a value
higher than 1.8 V. For output voltages other than 1.8 V a
single external resistor, RSET, must be connected directly
between the ‘VO Adjust’ (pin 7) and ‘(–)Sense’ (pin 6) pins.
A 0.05-W rated resistor can be used. The tolerance should
be 1%, with a temperature stability of 100 ppm/°C (or
better). Place the resistor close to the converter and
connect it directly between pins 7 & 6 using dedicated
PCB traces (see typical application). Table 1-1 gives the
preferred value of the external resistor for a number of
standard voltages, along with the actual output voltage
that this resistance value provides.
For other output voltages the value of the required adjust
resistor may be calculated using the following formula.
RSET
= 6.49 k
1.225 V
– 4.42 k
VSET – 1.805 V
Table 1-1; Preferred Values of RSET for Standard Output Voltages
VSET (Standard)
RSET (Pref’d Value)
VSET (Actual)
3.6 V
0
3.604V
3.3 V
887
3.303 V
2.5 V
6.98 k
2.503 V
2.0 V
35.7 k
2.003 V
1.8 V
Open
1.805 V
Input Current Limiting
The converter is not internally fused. For safety and
overall system protection, the maximum input current to
the converter must be limited. Active or passive current
limiting can be used. Passive current limiting can be a
fast acting fuse. A 125-V fuse, rated no more than 10 A,
is recommended. Active current limiting can be imple-
mented with a current limited “Hot-Swap” controller.
Thermal Considerations
Airflow may be necessary to ensure that the module can
supply the desired load current in environments with
elevated ambient temperatures. The required airflow
rate may be determined from the Safe Operating Area
(SOA) thermal derating chart (see converter specifica-
tions).
PTB78520W
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PTB78520WAS | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTB78520WAH | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PTB78560CAH | 1-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE |
| PTB78560AAH | 1-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE |
| PTB78560CAS | 1-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PTB78520WAH | 功能描述:DC/DC轉(zhuǎn)換器 20A 18-60V Inp Auto- Trk Compat Iso DC/DC 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: |
| PTB78520WAS | 功能描述:DC/DC轉(zhuǎn)換器 20A 18-60V Inp Auto- Trk Compat Iso DC/DC 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: |
| PTB78560A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:30-W, 24-V/48-V INPUT DC/DC CONVERTERS WITH AUTO-TRACK SEQUENCING |
| PTB78560AAH | 功能描述:DC/DC轉(zhuǎn)換器 30-W 24-V/48V Input 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: |
| PTB78560AAS | 功能描述:DC/DC轉(zhuǎn)換器 30-W 24-V/48V Input 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: |
發(fā)布緊急采購，3分鐘左右您將得到回復。