參數(shù)資料
型號： PTH04T240FAZT
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-11
文件頁數(shù)： 35/35頁
文件大?。?/td> 3835K
代理商： PTH04T240FAZT
APPLICATION INFORMATION
ADJUSTING THE OUTPUT VOLTAGE
R
SET + 10 kW
0.69
V
O * 0.69
* 1.43 kW
(1)
+Sense
V
O
-Sense
V
OAdj
PTH04T240F
5
6
7
R
SET
1%
0.05 W
8
+Sense
-Sense
GND
V
O
UDG-08159
GND
3
4
www.ti.com ............................................................................................................................................... SLTS293A – DECEMBER 2008 – REVISED MARCH 2009
The VOAdjust control (pin 8) sets the output voltage of the PTH04T240F. The adjustment range is between 0.69
V and 2.0 V. The adjustment method requires the addition of a single external resistor, RSET, that must be
connected directly between the VOAdjust and – Sense pins. Table 1 gives the standard 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 resistor can either be calculated using the following formula,
or simply selected from the range of values given in Table 2. Figure 9 shows the placement of the required
resistor.
Table 1. Standard Values of RSET for Standard Output Voltages
VO (Standard) (V)
RSET (Standard Value) (k)
VO (Actual) (V)
2.0 (1)
3.83
2.002
1.8 (1)
4.75
1.807
1.5 (1)
6.98
1.510
1.2
12.1
1.200
1
20.5
1.004
0.7
681
0.700
(1)
The minimum input voltage is 2.2 V or (VO + 0.5) V, whichever is greater.
(1)
RSET: Use a 0.05 W resistor with a tolerance of 1% and temperature stability of 100 ppm/°C (or better). Connect the
resistor directly between VOAdjust (pin 8) and -Sense (pin 7), as close to the regulator as possible, using dedicated
PCB traces.
(2)
Never connect capacitors from VOAdjust (pin 8) to either +Sense (pin 6), GND, or VO (pin 5). Any capacitance added
to the VOAdjust pin affects the stability of the regulator.
Figure 9. VO Adjust Resistor Placement
Copyright 2008–2009, Texas Instruments Incorporated
9
Product Folder Link(s): PTH04T240F
相關(guān)PDF資料
PDF描述
PTH04T240FAS 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T240FAZ 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T240FAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T240WAD 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T241WAZ 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
PTH04T240W 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-A, 2.2-V to 5.5-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TURBOTRANS⑩
PTH04T240WAD 功能描述:DC/DC轉(zhuǎn)換器 10-A 2.2V to 5.5V Adj Pwr Mod 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:
PTH04T240WAS 功能描述:DC/DC轉(zhuǎn)換器 10-A 2.2V to 5.5V Adj Pwr Mod 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:
PTH04T240WAST 功能描述:DC/DC轉(zhuǎn)換器 10-A 2.2V to 5.5V Adj Pwr Mod 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:
PTH04T240WAZ 功能描述:DC/DC轉(zhuǎn)換器 10-A 2.2V to 5.5V Adj Pwr Mod 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:
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