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參數(shù)資料
| 型號： | PT6726A |
| 英文描述： | 30V Single N-Channel HEXFET Power MOSFET in a SO-8 package; A IRF7811W with Standard Packaging |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 192K |
| 代理商： | PT6726A |
Application Notes
For technical support and more information, see inside back cover or visit www.ti.com
PT6725 Series
Adjusting the Output Voltage of the PT6725
Series of Integrated Switching Regulators
The PT6725 series of ISRs are non-programmable
versions of the PT6721/2 Excalibur regulators. The
regulators have a fixed output voltage, which may be
adjusted higher or lower than the factory pre-set voltage
using a single external resistor. Table 1 gives the adjust-
ment range for each model in the series as V
a
(min) and
V
a
(max).
Adjust Up:
An increase in the output voltage is obtained by
adding a resistor R
2
, between pin 1 (V
o
Adjust) and pin 7
(Remote Sense GND).
Adjust Down:
and pin 17 (Remote Sense V
out
).
Add a resistor
(R
1
)
, between pin 1 (V
o
Adjust)
Refer to Figure 1 and Table 2 for both the placement and value
of the required resistor, either
(R
1
)
or R
2
as appropriate.
The values of
(R
)
[adjust down], and R
[adjust up], can
also be calculated using the following formulas.
R
o
( V
a
–V
r
)
V
o
– V
a
(R
1
)
=
– R
s
k
R
o
·V
r
V
a
– V
o
– R
s
k
R
2
=
Where: V
o
= Original output voltage
= Adjusted output voltage
= The reference voltage (Table 1)
R
o
= The multiplier resistance (Table 1)
R
s
= The internal series resistance (Table 1)
V
a
V
r
Figure 1
Notes:
1. Use only a single 1% resistor in either the
(R
1
)
or R
2
location. Place the resistor as close to the regulator as
possible.
2. Never connect capacitors from V
o
Adjust to either GND,
V
out
, or the Remote Sense pins. Adding capacitance to the
V
o
Adjust pin will affect the stability of the ISR.
3. If the Remote Sense feature is not being used, pin 7 must
be connected to pin 8 for optimum output voltage
accuracy. The resistors
(R
1
)
and R
2
may then be connected
from ‘V
o
Adjust’ to either V
out
or GND respectively.
L
O
A
D
(R1)
Adj Down
R2
Adjust Up
C
out
+
C
in
+
COM
+5V
Vo
COM
PT6725
Sns(+)
Sns(-)
V
out
GND
Vo(adj)
V
in
Stby*
13
–
16
17
7
1
8
–
12
4,5,6
2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PT6726C | Analog IC |
| PT6726N | 55V Single N-Channel HEXFET Power MOSFET in a SOT-223 package; A IRLL024Z with Standard Packaging |
| PT6727A | A 20V Single N-Channel HEXFET Power MOSFET in a DirectFET MX package rated at 150 amperes optimized with low on resistance for applications such as active OR'ing. Shipped in Tape and Reel only. Part is not available in bulk, TR is implied in part number.; A IRF6620 with Standard Tape and Reel Quantity of 4800 |
| PT6727C | Analog IC |
| PT6727N | Analog IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT6726C | 功能描述:REGULTR 2.5V 14A CU CASE HRZ SMD RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:PT6720 標(biāo)準(zhǔn)包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最小）:36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點(diǎn):- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W |
| PT6726N | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2.5Vout 14A 12V-Inp CU Case Adj ISR RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| PT6727 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:14-A 12V-Input Adjustable Integrated Switching Regulator |
| PT6727A | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 1.8Vout 14A 12V-Inp CU Case Adj ISR RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| PT6727C | 功能描述:REGULTR 1.8V 14A CU CASE HRZ SMD RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:PT6720 標(biāo)準(zhǔn)包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點(diǎn):- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W |
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