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參數(shù)資料
| 型號： | TPS40055MPWPREPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | PLASTIC, HTSSOP-16 |
| 文件頁數(shù)： | 20/35頁 |
| 文件大?。?/td> | 2348K |
| 代理商： | TPS40055MPWPREPG4 |
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1
2
3
4
16
15
14
13
ILIM
VIN
BOOST
HDRV
KFF
RT
BP5
SYNC
TPS40055
5
6
7
8
12
11
10
9
SW
BP10
LDRV
PGND
SGND
SS
VFB
COMP
+
-
+
-
Si7860
PWP
Si7860
*optional
47 pF
1N4150
Optional
Hysteresis for
UVLO
330 mF
RKFF
71.5 kW
13 kW
100 pF
0.1 mF
22 mF
50 V
22 mF
50 V
R3
6.49 kW
R1
100 kW 180 mF
180 mF
VOUT
VIN
RBIAS
26.7 kW
1.0 mF
R2
97.6 kW
1.0 mF
C3
330 pF
1.0 kW
CSS
3300 pF
C1
330 pF
C2
22 pF
RT
169 kW
2.9 mH
1.0 mF
499 kW
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www.ti.com
SGLS310B – JULY 2005 – REVISED OCTOBER 2010
DESIGN EXAMPLE SUMMARY
Figure 17 shows component selection for the 10-V to 24-V to 3.3-V at 8 A dc-to-dc converter specified in the
design example. For an 8-V input application, it may be necessary to add a Schottky diode from BP10 to BOOST
to get sufficient gate drive for the upper MOSFET. As seen in Figure 8, the BP10 output is about 6 V with the
input at 8 V, so the upper MOSFET gate drive may be less than 5 V.
A Schottky diode is shown connected across the synchronous rectifier MOSFET as an optional device that may
be required if the layout causes excessive negative SW node voltage, greater than or equal to 2 V.
Figure 17. 24 V to 3.3 V at 8-A DC-to-DC Converter Design Example
REFERENCES
1. Balogh, Laszlo, Design and Application Guide for High Speed MOSFET Gate Drive Circuits, Texas
Instruments/Unitrode Corporation, Power Supply Design Seminar, SEM-1400 Topic 2.
2. PowerPAD Thermally Enhanced Package Texas Instruments, Semiconductor Group, Technical Brief
Copyright 2005–2010, Texas Instruments Incorporated
27
Product Folder Link(s): TPS40055-EP
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS40055PWP | 功能描述:DC/DC 開關(guān)控制器 Wide Input Sync Buck Cntrlr source/sink RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS40055PWPG4 | 功能描述:DC/DC 開關(guān)控制器 Wide Input Sync Buck Cntrlr source/sink RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS40055PWPR | 功能描述:DC/DC 開關(guān)控制器 Wide Input Sync Buck Cntrlr source/sink RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS40055PWPRG4 | 功能描述:DC/DC 開關(guān)控制器 Wide Input Sync Buck Cntrlr source/sink RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS40056 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:WIDE-INPUT SYNCHRONOUS, TRACKING BUCK CONTROLLER |
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