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參數(shù)資料
| 型號(hào)： | PTH05000W |
| 英文描述： | Fully-integrated linear lighting ballast, IR21571, European version, 230VAC line, 36W/T8 lamp |
| 中文描述： | 6答：5 - V輸入寬輸出調(diào)節(jié)插入電源模塊 |
| 文件頁數(shù)： | 5/11頁 |
| 文件大小： | 286K |
| 代理商： | PTH05000W |
Application Notes
For technical support and more information, see inside back cover or visit www.ti.com
Adjusting the Output Voltage of the PTH05000W
Wide-Output Adjust Power Modules
The
V
o
Adjust
control (pin 4) sets the output voltage of
the PTH05000Wproduct. The adjustment range is
from 0.9 V to 3.6 V. The adjustment method requires
the addition of a single external resistor, R
set
, that must
be connected directly between the
V
o
Adjust
and
GND
pins
1
. 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 resistor
can either be calculated using the following formula, or
simply selected from the range of values given in Table 1-2.
Figure 1-1 shows the placement of the required resistor.
R
set
= 10 k
·
0.891 V
V
out
– 0.9 V
– 3.24 k
Figure 1-1; V
o
Adjust Resistor Placement
Notes:
1. Use a 0.1 W resistor. The tolerance should be 1 %,
with a temperature stability of 100 ppm/°C (or better).
Place the resistor as close to the regulator as possible.
Connect the resistor directly between pins 4 and 1
using dedicated PCB traces.
2. Never connect capacitors from
V
o
Adjust
to either
GND
or
V
out
. Any capacitance added to the
V
o
Adjust
pin will affect
the stability of the regulator.
0.900
0.925
0.950
0.975
1.000
1.025
1.050
1.075
1.100
1.125
1.150
1.175
1.200
1.225
1.250
1.275
1.300
1.325
1.350
1.375
1.400
1.425
1.450
1.475
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
Open
353 k
175 k
116 k
85.9 k
68.0 k
56.2 k
47.7 k
41.3 k
36.4 k
32.4 k
29.2 k
26.5 k
24.2 k
22.2 k
20.5 k
19.0 k
17.7 k
16.6 k
15.5 k
14.6 k
13.7 k
13.0 k
12.3 k
11.6 k
10.5 k
9.49 k
8.64 k
7.90 k
7.24 k
6.66 k
6.14 k
5.67 k
5.25 k
V
out
(Standard)
3.3 V
2.5 V
2 V
1.8 V
1.5 V
1.2 V
1 V
0.9 V
R
set
(Pref’d Value)
475
2.32 k
4.87 k
6.65 k
11.5 k
26.1 k
84.5 k
Open
V
out
(Actual)
3.298V
2.502 V
1.999 V
1.801 V
1.504 V
1.204 V
1.001 V
0.9 V
Table 1-1; Preferred Values of R
set
for Standard Output Voltages
PTH05000W
Table 1-2; Output Voltage Set-Point Resistor Values
V
a
Req’d
R
set
V
a
Req’d
R
set
4.86 k
4.51 k
4.19 k
3.89 k
3.61 k
3.36 k
3.12 k
2.90 k
2.70 k
2.51 k
2.33 k
2.16 k
2.00 k
1.85 k
1.71 k
1.58 k
1.45 k
1.33 k
1.22 k
1.11 k
1.00 k
904
810
720
634
551
473
397
324
254
187
122
60
2.00
2.05
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.60
PTH05000W
V
IN
1
4
5
2
3
C
330μF
(Required)
+
C
100μF
(Optional)
+
Inhibit
GND
GND
V
OUT
R
SET
0.1 W, 1 %
V
O
Adj
GND
Inhibit
V
IN
V
O
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|---|---|
| PTH05000WAD | 功能描述:DC/DC轉(zhuǎn)換器 6A 5VInput Wide-Out Adj Plug-in 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(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: |
| PTH05000WAH | 功能描述:DC/DC轉(zhuǎn)換器 6A 5VInput Wide-Out Adj Plug-in 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(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: |
| PTH05000WAH | 制造商:POWER TRENDS 功能描述:IC DC/DC 5VIN 6A ADJ O/P 5000 |
| PTH05000WAH | 制造商:Texas Instruments 功能描述:Supply Voltage Max.:5.5V |
| PTH05000WAS | 功能描述:DC/DC轉(zhuǎn)換器 6A 5VInput Wide-Out Adj Plug-in 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(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: |
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