參數(shù)資料
型號： TPS54673EVM
廠商： Texas Instruments, Inc.
英文描述： 6-Amp SWIFT Regulator With Disabled Sink During Start-Up Evaulation Module(帶上電時禁止吸收電流功能的6A SWIFT穩(wěn)壓器TPS54673的評估模塊)
中文描述： 6安培的SWIFT調(diào)節(jié)器在啟動殘疾人水槽行動Evaulation模塊（帶上電時禁止吸收電流功能的6A條SWIFT的穩(wěn)壓器TPS54673的評估模塊）
文件頁數(shù)： 14/42頁
文件大?。?/td> 908K
代理商： TPS54673EVM
Modifications
1-4
1.3
Modifications
The TPS54x73EVM-225 is designed to demonstrate the small size that can
be attained when designing with the TPS54x73, so many of the features which
allow for extensive modifications have been ommited from this EVM.
Changing the value of R4 can change the output voltage in the range of 0.9
V to 3.3 V. The value of R4 for a specific output voltage can be calculated by
using equation 1
.
Table 1
–
4
lists the values for R4 for some common output
voltages.
R4
10 k
0.891 V
0.891 V
V
O
Table 1
–
4.Output Voltage Programming
Output Voltage (V)
R4 Value (k )
0.9
1000
1.2
28.7
1.5
14.7
1.8
9.76
2.5
5.49
3.3
3.74
The minimum output voltage is limited by the minimum controllable on-time of
the device, 200 ns, and is dependent upon the duty cycle and operating fre-
quency. The approximat minimum output voltage can be calculated using:
V
OUTMIN
200 ns
f
s
V
INMIN
The switching frequency may be trimmed to any value between 280 kHz and
700 kHz by changing the value of R6. Decreasing the switching frequency
results in increased output ripple, unless the value of L1 is increased. A plot
of the value of RT versus the switching frequency is given in
Figure 1
–
1
.
Figure 1
–
1.Frequency Trimming Resistor Selection Graph
250
300
350
400
450
500
550
600
650
700
750
60 70 80 90 100 110 120 130 140 150 160 170 180
R – Resistance – k
S
(1)
(2)
相關(guān)PDF資料
PDF描述
TPS54683EVM-225 8-Amp SWIFT Regulator With Disabled Sink During Start-Up Evaulation Module(帶上電時禁止吸收電流功能的8A SWIFT穩(wěn)壓器TPS54873的評估模塊)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS54673PWP 功能描述:直流/直流開關(guān)調(diào)節(jié)器 6A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54673PWPG4 功能描述:直流/直流開關(guān)調(diào)節(jié)器 6A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54673PWPR 功能描述:直流/直流開關(guān)調(diào)節(jié)器 6A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54673PWPRG4 功能描述:直流/直流開關(guān)調(diào)節(jié)器 6A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54678 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95 V to 6 V INPUT, 6 A OUTPUT, 2 MHz, SYNCHRONOUS STEP DOWN SWITCHER WITH INTEGRATED FET ( SWIFTa?￠)
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