參數(shù)資料
型號(hào): PT4701
英文描述: 150V Single N-Channel HEXFET Power MOSFET in a SO-8 package; A IRF7451 with Standard Packaging
中文描述: 35鎢四路輸出。 48 - V輸入直流/直流轉(zhuǎn)換器的DSL線路驅(qū)動(dòng)器
文件頁(yè)數(shù): 8/13頁(yè)
文件大?。?/td> 345K
代理商: PT4701
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
continued
Table 3-3
ADJUSTMENT RESISTOR VALUES FOR ±Vo
1
Adj. Resistor
% Adjust
±V
a
(req
d)
–10 %
7.20 V
– 9 %
7.28 V
– 8 %
7.36 V
– 7 %
7.44 V
– 6 %
7.52 V
– 5 %
7.60 V
– 4 %
7.68 V
– 3 %
7.76 V
– 2 %
7.84 V
– 1 %
7.92 V
0 %
8.00 V
+ 1 %
8.08 V
+ 2 %
8.16 V
+ 3 %
8.24 V
+ 4 %
8.32 V
+ 5 %
8.40 V
+ 6 %
8.48 V
+ 7 %
8.56 V
+ 8 %
8.64 V
+ 9 %
8.72 V
+10 %
8.80 V
R
1
=
Black, R
2
=
(Blue)
R
1
/
(R
2
)
(86.4) k
(99.8) k
(117.0) k
(138.0) k
(167.0) k
(207.0) k
(267.0) k
(368.0) k
(569.0) k
(1.17) M
203.0 k
91.7 k
54.5 k
35.9 k
24.7 k
17.2 k
11.9 k
7.9 k
4.8 k
2.3 k
Table 3-2
ADJUSTMENT RANGE AND FORMULA PARAMETERS
±Vo
1
Bus
V
o
(nom)
8.0 V
V
a
(min)
7.2 V
V
a
(max)
8.8 V
V
r
2.5 V
R
o
(k
)
14.3
R
s
(k
)
20.0
±Vo
2
Bus
3.94 V
3.55 V
4.33 V
1.24 V
13.0
16.2
PT4701
Table 3-4
ADJUSTMENT RESISTOR VALUES FOR Vo
2
Adj. Resistor
R
1
/
(R
2
)
±V
a
(req
d)
3.546 V
(80.3) k
3.585 V
(92.5) k
3.625 V
(108.0) k
3.664 V
(127.0) k
3.704 V
(153.0) k
3.743 V
(190.0) k
3.782 V
(245.0) k
3.822 V
(336.0) k
3.861 V
(519.0) k
3.900 V
(1.07)M
3.940 V
3.979 V
188.0 k
4.019 V
86.1 k
4.058 V
52.0 k
4.098 V
34.9 k
4.137 V
24.7 k
4.176 V
17.9 k
4.216 V
13.0 k
4.255 V
4.295 V
4.334 V
R
1
=
Black, R
2
=
(Blue)
9.4 k
6.5 k
4.3 k
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