- 您現在的位置：買賣IC網 > PDF目錄98283 > TPS56100PWPR (TEXAS INSTRUMENTS INC) 1.4 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO28 PDF資料下載
參數資料
| 型號： | TPS56100PWPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 1.4 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | GREEN, PLASTIC, HTSSOP-28 |
| 文件頁數： | 18/30頁 |
| 文件大?。?/td> | 595K |
| 代理商： | TPS56100PWPR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁當前第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁
TPS56100
HIGHEFFICIENCY DSP POWER SUPPLY CONTROLLER
FOR 5V INPUT SYSTEMS
SLVS201A JUNE 1999 REVISED JULY 1999
25
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
layout guidelines
Good power supply results will only occur when care is given to proper design and layout. Layout will affect noise
pickup and generation and can cause a good design to perform with less than expected results. With a range
of currents from milliamps to tens or even hundreds of amps, good power supply layout is much more difficult
than most general PCB designs. The general design should proceed from the switching node to the output, then
back to the driver section and, finally, place the low-level components. Below are several specific points to
consider before layout of a TPS56100 design begins.
1.
All sensitive analog components should be referenced to ANAGND. These include components connected
to SLOWST, IOUT, OCP, VSENSE, VREFB, VHYST, BIAS, and LOHIB.
2.
Analog ground and drive ground should be isolated as much as possible. Ideally, analog ground will connect
to the ground side of the bulk storage capacitors on VO, and drive ground will connect to the main ground
plane close to the source of the low-side FET.
3.
Connections from the drivers to the gate of the power FETs should be as short and wide as possible to
reduce stray inductance. This becomes more critical if external gate resistors are not being used.
4.
The bypass capacitor for the DRV input should be placed close to the TPS56100 and be connected to
DRVGND.
5.
The bypass capacitor for VCC should be placed close to the TPS56100 and be connected to AGND.
6.
When configuring the high-side driver as a floating driver, the connection from BOOTLO to the power FETs
should be as short and as wide as possible. The other pins that also connect to the power FETs, LOHIB
and LOSENSE, should have a separate connection to the FETS since BOOTLO will have large peak
currents flowing through it.
7.
When configuring the high-side driver as a floating driver, the bootstrap capacitor (connected from BOOT
to BOOTLO) should be placed close to the TPS56100.
8.
When configuring the high-side driver as a ground-referenced driver, BOOTLO should be connected to
DRVGND.
9.
The bulk storage capacitors across VI should be placed close to the power FETS. High-frequency bypass
capacitors should be placed in parallel with the bulk capacitors and connected close to the drain of the
high-side FET and to the source of the low-side FET.
10. High-frequency bypass capacitors should be placed across the bulk storage capacitors on VO.
11. HISENSE and LOSENSE should be connected very close to the drain and source, respectively, of the
high-side FET. HISENSE and LOSENSE should be routed very close to each other to minimize
differential-mode noise coupling to these traces. Ceramic decoupling capacitors should be placed close to
where HISENSE connects to Vin, to reduce high-frequency noise coupling on HISENSE.
相關PDF資料 |
PDF描述 |
|---|---|
| TPS56100PWPRG4 | 1.4 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO28 |
| TPS56121DQPT | SWITCHING CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PDSO22 |
| TPS5615CPWP | SWITCHING CONTROLLER, PDSO28 |
| TPS5625CPWPR | SWITCHING CONTROLLER, PDSO28 |
| TPS56221DQPR | SWITCHING CONTROLLER, PDSO22 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS56100PWPRG4 | 功能描述:DC/DC 開關控制器 5B Programmable Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS561201DDCR | 功能描述:AUGUSTA NEXT 1A 制造商:texas instruments 系列:* 零件狀態:在售 標準包裝:1 |
| TPS561201DDCT | 功能描述:4.5V TO 17V INPUT, 1A SYNCHRONOU 制造商:texas instruments 系列:SWIFT?? 包裝:剪切帶（CT） 零件狀態:在售 功能:降壓 輸出配置:正 拓撲:降壓 輸出類型:可調式 輸出數:1 電壓 - 輸入（最小值）:4.5V 電壓 - 輸入（最大值）:17V 電壓 - 輸出（最小值/固定）:0.76V 電壓 - 輸出（最大值）:7V 電流 - 輸出:1A 頻率 - 開關:580kHz 同步整流器:是 工作溫度:-40°C ~ 85°C（TA） 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細型，TSOT-23-6 供應商器件封裝:SOT-23-6 標準包裝:1 |
| TPS561201EVM-896 | 功能描述:EVAIL MOD 制造商:texas instruments 系列:* 零件狀態:在售 標準包裝:1 |
| TPS561208DDCR | 功能描述:AUGUSTANEXT 1A 制造商:texas instruments 系列:* 零件狀態:在售 標準包裝:1 |
發布緊急采購，3分鐘左右您將得到回復。