參數(shù)資料
型號: TPS40001EVM-001
廠商: Texas Instruments, Inc.
英文描述: TPS40001 Evaluation Module(TPS40001評估板)
中文描述: TPS40001評估模塊(TPS40001評估板)
文件頁數(shù): 4/16頁
文件大?。?/td> 318K
代理商: TPS40001EVM-001
SLUU131A – September 2002 – Revised February 2003
12
TPS40001 Based Converter Delivers 10-A Output
Typical efficiency curves are shown in Figure 5 for 3.3-V input. It should be stressed that measuring high
efficiencies requires the utmost care in instrumentation. The power losses are so low that small errors can lead
to large variations in measured efficiency. The input and output voltages are measured on the PCB as shown
in the test diagram to avoid the losses associated with the input and output connectors.
Efficiency
%
EFFICIENCY
vs
OUTPUT CURRENT
IOUT – Output Current – A
50
55
60
65
70
75
80
85
90
95
100
0.00
2.00
6.00
8.00
10.00
4.00
Figure 5.
Figure 6 shows the switch node at VIN = 5 V and IOUT =10 A. As the picture indicates, there is almost negligible
body diode conduction using the Predictive Gate Drive
t technique.
t – Time – 500 ns/div
2 V/div
TYPICAL SWITCH NODE WAVEFORM
Figure 6.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS40002 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-INPUT VOLTAGE-MODE SYNCHRONOUS BUCK CONTROLLER
TPS40002DGQ 功能描述:電壓模式 PWM 控制器 Lo Input 600kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
TPS40002DGQG4 功能描述:電壓模式 PWM 控制器 Lo Input 600kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
TPS40002DGQR 功能描述:電壓模式 PWM 控制器 Lo Input 600kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
TPS40002DGQRG4 功能描述:電壓模式 PWM 控制器 Lo Input 600kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel