欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: UBA2030T
廠商: NXP SEMICONDUCTORS
元件分類: 功率晶體管
英文描述: Full bridge driver IC(整橋驅動器芯片)
中文描述: 0.32 A FULL BRDG BASED MOSFET DRIVER, PDSO24
封裝: 7.50 MM, PLASTIC, SOT-137-1, SO-24
文件頁數: 17/20頁
文件大小: 94K
代理商: UBA2030T
1999 Aug 10
17
Philips Semiconductors
Preliminary specification
Full bridge driver IC
UBA2030T
SOLDERING
Introduction to soldering surface mount packages
Thistextgivesaverybriefinsighttoacomplextechnology.
A more in-depth account of soldering ICs can be found in
our “Data Handbook IC26; Integrated Circuit Packages”
(document order number 9398 652 90011).
There is no soldering method that is ideal for all surface
mount IC packages. Wave soldering is not always suitable
for surface mount ICs, or for printed-circuit boards with
high population densities. In these situations reflow
soldering is often used.
Reflow soldering
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
Several methods exist for reflowing; for example,
infrared/convection heating in a conveyor type oven.
Throughput times (preheating, soldering and cooling) vary
between 100 and 200 seconds depending on heating
method.
Typical reflow peak temperatures range from
215 to 250
°
C. The top-surface temperature of the
packages should preferable be kept below 230
°
C.
Wave soldering
Conventional single wave soldering is not recommended
forsurfacemountdevices(SMDs)orprinted-circuitboards
with a high component density, as solder bridging and
non-wetting can present major problems.
To overcome these problems the double-wave soldering
method was specifically developed.
If wave soldering is used the following conditions must be
observed for optimal results:
Use a double-wave soldering method comprising a
turbulent wave with high upward pressure followed by a
smooth laminar wave.
For packages with leads on two sides and a pitch (e):
– larger than or equal to 1.27 mm, the footprint
longitudinal axis is
preferred
to be parallel to the
transport direction of the printed-circuit board;
– smaller than 1.27 mm, the footprint longitudinal axis
must
be parallel to the transport direction of the
printed-circuit board.
The footprint must incorporate solder thieves at the
downstream end.
Forpackageswithleadsonfoursides,thefootprintmust
be placed at a 45
°
angle to the transport direction of the
printed-circuit board. The footprint must incorporate
solder thieves downstream and at the side corners.
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Typical dwell time is 4 seconds at 250
°
C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Manual soldering
Fix the component by first soldering two
diagonally-opposite end leads. Use a low voltage (24 V or
less) soldering iron applied to the flat part of the lead.
Contact time must be limited to 10 seconds at up to
300
°
C.
When using a dedicated tool, all other leads can be
soldered in one operation within 2 to 5 seconds between
270 and 320
°
C.
相關PDF資料
PDF描述
UBA2050 One-chip telephone ICs with speech, dialler and ringer functions(帶語音,撥號及振鈴功能的單片電話芯片)
UBA2050A One-chip telephone ICs with speech, dialler and ringer functions(帶語音,撥號及振鈴功能的單片電話芯片)
UBA2051 One-chip telephone ICs with speech, dialler and ringer functions
UBA2051A One-chip telephone ICs with speech, dialler and ringer functions
UBA2051AT One-chip telephone ICs with speech, dialler and ringer functions
相關代理商/技術參數
參數描述
UBA2030T/N1,118 功能描述:功率驅動器IC UBA2030T/SO24/REEL13//N1 RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
UBA2030T/N1/N,118 功能描述:功率驅動器IC MOSFET DRVR 0.32A 4OUT Hi/Lo Full Brdg RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
UBA2032 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full bridge driver IC
UBA2032T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full bridge driver IC
UBA2032T/N2,118 功能描述:功率驅動器IC HID RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
主站蜘蛛池模板: 砚山县| 加查县| 陈巴尔虎旗| 龙泉市| 平安县| 平凉市| SHOW| 兴义市| 阳江市| 如皋市| 高尔夫| 恩平市| 临江市| 民乐县| 南阳市| 克山县| 万州区| 凌海市| 利津县| 渭源县| 沁阳市| 崇信县| 桃园县| 漳州市| 博白县| 堆龙德庆县| 来凤县| 广南县| 儋州市| 醴陵市| 怀远县| 平阳县| 岐山县| 石嘴山市| 门源| 华阴市| 利津县| 论坛| 田林县| 土默特左旗| 安新县|