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參數(shù)資料
| 型號： | LTC3900MPS8#TR |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, PDSO8 |
| 封裝： | PLASTIC, SOP-8 |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 277K |
| 代理商： | LTC3900MPS8#TR |
LTC3900
12
3900fb
applicaTions inForMaTion
the driver dissipation, the total gate charge QG is used.
This parameter is found on the MOSFET manufacturers
data sheet.
The power dissipated in each LTC3900 MOSFET driver
is:
PDRIVER = QG VCC fSW
where fSW is the switching frequency of the converter.
PC Board Layout Checklist
When laying out the printed circuit board, the following
checklist should be used to ensure proper operation of
the LTC3900 for your layout:
1. Connect the 4.7F bypass capacitor as close as possible
to the VCC and GND pins.
2. Connect the two MOSFET drain terminals directly to
the transformer. The two MOSFET sources should be as
close together as possible.
3. Keep the timer, SYNC and VCC regulator circuit away
from the high current path of Q3, Q4 and T1.
4. Place the timer capacitor, CTMR, as close as possible
to the LTC3900.
5. Keep the PCB trace from the resistors RCS1, RCS2 and
RCS3 to the LTC3900 CS+/CS– pins as short as possible.
Connect the other ends of the resistors directly to the drain
and source of the MOSFET, Q4.
LTC3900
8V
BIAS
VB1
220pF
BAT760
8V
BIAS
3
FG
5
CG
+VIN
36V TO 72V
PA0912.002
BAS516
BCX55
VOUT
3.3V, 40A
10k
1nF
1F
15k
560R
COUT
100F
3x
0.1F
2.2F
1nF
12V
Q2
PH3230
2x
Q3
PH3230
2x
18V
NEC
PS2701
Q4470-B
VB1
C16
10pF
C13
1F
C14
33nF
C15
6.8nF
82k
47k
3900 TA01
L1
SD_VSEC
OUT
LT1952
7
14
ROSC
VIN
3
15
BLANK
GND
9
8
SS_MAXDC
PGND
5
13
DELAY
12
VR = 2.5V
OC
6
11
COMP
ISENSE
1
10
FB = 1.23V
SOUT
2
16
Si7846
1
GND
6
CS+
2
VCC
4
CS–
7
SYNC
8
TIMER
370k
0.010R
1nF
470
39k
13.2k
115k
27k
0.22F
0.1F
10k
59k
33k
2.2k
22k
L1: PA0713, PULSE ENGINEERING
ALL CAPACITORS X7R, CERAMIC, TDK
R24
27.4k
1%
R25
6.04k
1%
R23
3.3k
6
5
4
1
2
3
LT4430
VIN
GND
OC
OPTO
COMP
FB
8V BIAS
R22
270
Typical applicaTions
36V to 72V, 3.3V at 40A Synchronous Forward Converter
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC3900MPS8#PBF | SWITCHING REGULATOR, PDSO8 |
| LTC3900HS8 | SWITCHING REGULATOR, PDSO8 |
| LTC3900HS8#TRPBF | SWITCHING REGULATOR, PDSO8 |
| LTC3900HS8#TR | SWITCHING REGULATOR, PDSO8 |
| LTC3900MPS8#TRPBF | SWITCHING REGULATOR, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3901EGN | 功能描述:IC DRIVER RECT SYNC CONV 16SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 外部開關(guān) 系列:- 標準包裝:5 系列:- 配置:低端 輸入類型:非反相 延遲時間:600ns 電流 - 峰:12A 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大（自引導(dǎo)啟動）:- 電源電壓:14.2 V ~ 15.8 V 工作溫度:-20°C ~ 60°C 安裝類型:通孔 封裝/外殼:21-SIP 模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 配用:BG2A-NF-ND - KIT DEV BOARD FOR IGBT 其它名稱:835-1063 |
| LTC3901EGN#PBF | 功能描述:IC DRIVER RECT SYNC CONV 16SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 外部開關(guān) 系列:- 標準包裝:5 系列:- 配置:低端 輸入類型:非反相 延遲時間:600ns 電流 - 峰:12A 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大（自引導(dǎo)啟動）:- 電源電壓:14.2 V ~ 15.8 V 工作溫度:-20°C ~ 60°C 安裝類型:通孔 封裝/外殼:21-SIP 模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 配用:BG2A-NF-ND - KIT DEV BOARD FOR IGBT 其它名稱:835-1063 |
| LTC3901EGN#TR | 功能描述:IC DRIVER RECT SYNC CONV 16SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 外部開關(guān) 系列:- 標準包裝:5 系列:- 配置:低端 輸入類型:非反相 延遲時間:600ns 電流 - 峰:12A 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大（自引導(dǎo)啟動）:- 電源電壓:14.2 V ~ 15.8 V 工作溫度:-20°C ~ 60°C 安裝類型:通孔 封裝/外殼:21-SIP 模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 配用:BG2A-NF-ND - KIT DEV BOARD FOR IGBT 其它名稱:835-1063 |
| LTC3901EGN#TRPBF | 功能描述:IC DRIVER RECT SYNC CONV 16SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 外部開關(guān) 系列:- 標準包裝:5 系列:- 配置:低端 輸入類型:非反相 延遲時間:600ns 電流 - 峰:12A 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大（自引導(dǎo)啟動）:- 電源電壓:14.2 V ~ 15.8 V 工作溫度:-20°C ~ 60°C 安裝類型:通孔 封裝/外殼:21-SIP 模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 配用:BG2A-NF-ND - KIT DEV BOARD FOR IGBT 其它名稱:835-1063 |
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