參數(shù)資料
型號: PTH12060LAST
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-10
文件頁數(shù): 28/29頁
文件大?。?/td> 1040K
代理商: PTH12060LAST
APPLICATION INFORMATION
ADJUSTING THE OUTPUT VOLTAGE
V
I
+
GND
V
O
V Sense
O
R
1%
SET
PTH12060
1
10
4
5
6
2
3
9
7
8
C
330 F
(Optional)
O
m
C
560 F
(Required)
I
m
SLTS217H – MAY 2003 – REVISED DECEMBER 2008 .................................................................................................................................................... www.ti.com
The VOAdjust control (pin 4) sets the output voltage of the PTH12060W/L. The adjustment range is from 1.2V to
5.5V for the W-suffix modules, and 0.8V to 1.8V for L-suffix modules. The adjustment method requires the
addition of a single external resistor, RSET, that must be connected directly between the VOAdjust and GND
pins(1). Table 1 gives the standard value of the external resistor for a number of standard voltages, along with the
actual output voltage that the resistance value provides. For other output voltages the value of the required
resistor can either be calculated using Equation 1, or simply selected from the range of values given in Table 3.
Figure 9 shows the placement of the required resistor.
Table 1. Standard Values of RSET for Standard Output Voltages
PTH12060W
PTH12060L
VO(V)
RSET (k)
RSET(k)
(Required)
(Actual)
5
0.280
5.009
N/A
3.3
2
3.294
N/A
2.5
4.32
2.503
N/A
2
8.06
2.01
N/A
1.8
11.5
1.801
0.130
1.8
1.5
24.3
1.506
3.57
1.499
1.2
Open
1.2
12.1
1.201
1.1
N/A
18.7
1.101
1.0
N/A
32.4
0.999
0.9
N/A
71.5
0.901
0.8
N/A
Open
0.8
(1)
RSET: Use a 0.05-W rated resistor with a 1% tolerance and temperature stability of 100 ppm/°C or better. Place the
resistor directly between pins 4 and 7, as close to the regulator as possible, using dedicated PCB traces.
(2)
Never connect capacitors from VO Adjust to either GND or VO. Any capacitance added to the VO Adjust pin affects the
stability of the regulator.
Figure 9. VO Adjust Resistor Placement
8
Copyright 2003–2008, Texas Instruments Incorporated
Product Folder Link(s): PTH12060W/L
相關PDF資料
PDF描述
PTH12060WAD 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12060LAS 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12060WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12060WAS 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH12060WAH 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
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