- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄369509 > BT136X_SERIES Triacs PDF資料下載
參數(shù)資料
| 型號(hào)： | BT136X_SERIES |
| 英文描述： | Triacs |
| 中文描述： | 雙向可控硅 |
| 文件頁(yè)數(shù)： | 176/224頁(yè) |
| 文件大?。?/td> | 2697K |
| 代理商： | BT136X_SERIES |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)第162頁(yè)第163頁(yè)第164頁(yè)第165頁(yè)第166頁(yè)第167頁(yè)第168頁(yè)第169頁(yè)第170頁(yè)第171頁(yè)第172頁(yè)第173頁(yè)第174頁(yè)第175頁(yè)當(dāng)前第176頁(yè)第177頁(yè)第178頁(yè)第179頁(yè)第180頁(yè)第181頁(yè)第182頁(yè)第183頁(yè)第184頁(yè)第185頁(yè)第186頁(yè)第187頁(yè)第188頁(yè)第189頁(yè)第190頁(yè)第191頁(yè)第192頁(yè)第193頁(yè)第194頁(yè)第195頁(yè)第196頁(yè)第197頁(yè)第198頁(yè)第199頁(yè)第200頁(yè)第201頁(yè)第202頁(yè)第203頁(yè)第204頁(yè)第205頁(yè)第206頁(yè)第207頁(yè)第208頁(yè)第209頁(yè)第210頁(yè)第211頁(yè)第212頁(yè)第213頁(yè)第214頁(yè)第215頁(yè)第216頁(yè)第217頁(yè)第218頁(yè)第219頁(yè)第220頁(yè)第221頁(yè)第222頁(yè)第223頁(yè)第224頁(yè)
AN1007
Application Notes
http://www.teccor.com
+1 972-580-7777
AN1007 - 4
2002 Teccor Electronics
Thyristor Product Catalog
Figure AN1007.8
Optocoupler Circuit for Lower Current Inductive
Loads (Triac or Alternistor)
In this circuit, the series gate resistors are increased to 180
each, since a 240 V line is applied. Note that the load is placed
on the MT1 side of the power triac to illustrate that load place-
ment is
not
important for the circuit to function properly.
Also note that with standard U.S. residential 240 V home wiring,
both sides of the line are hot with respect to ground (no neutral).
Therefore, for some 240 V line applications, it will be necessary
to have a triac switch circuit in both sides of the 240 V line input.
If an application requires back-to-back SCRs instead of a triac or
alternistor, the circuit shown in Figure AN1007.9 may be used.
Figure AN1007.9
Optocoupled Circuit for Heavy-duty Inductive Loads
All application comments and recommendations for optocoupled
switches apply to this circuit. However, the snubber network can
be applied only across the SCRs as shown in the illustration. The
optocoupler should be chosen for best noise immunity. Also, the
voltage rating of the optocoupler output triac must be equal to or
greater than the voltage rating of SCRs.
Summary of Random Turn-on Relays
As shown in Figure AN1007.10, if the voltage across the load is
to be phase controlled, the input control circuitry must be syn-
chronized to the line frequency and the trigger pulses delayed
from zero crossing every half cycle. If the series gate resistor is
chosen to limit the peak current through the opto-driver to less
than 1 A, then on a 120 V ac line the peak voltage is 170 V;
therefore, the resistor is 180
. On a 240 V ac line the peak volt-
age is 340 V; therefore, the resistor should be 360
. These gate
pulses are only as long as the device takes to turn on (typically,
5 μs to 6 μs); therefore, 0.25 W resistor is adequate.
Figure AN1007.10
Random Turn-on Triac Driver
Select the triac for the voltage of the line being used, the current
through the load, and the type of load. Since the peak voltage of
a 120 V ac line is 170 V, you would choose a 200 V (MIN) device.
If the application is used in an electrically noisy industrial envi-
ronment, a 400 V device should be used. If the line voltage to be
controlled is 240 V ac with a peak voltage of 340 V, then use at
least a 400 V rated part or 600 V for more design margin. Selec-
tion of the voltage rating of the opto-driver must be the same or
higher than the rating of the power triac. In electrically noisy
industrial locations, the dv/dt rating of the opto-driver and the
triac must be considered.
The RMS current through the load and main terminals of the triac
should be approximately 70% of the maximum rating of the
device. However, a 40 A triac should not be chosen to control a
1 A load due to low latching and holding current requirements.
Remember that the case temperature of the triac must be main-
tained at or below the current versus temperature curve specified
on its data sheet. As with all semiconductors the lower the case
temperature the better the reliability. Opto-driven gates normally
do not use a sensitive gate triac. The opto-driver can supply up to
1 A gate pulses and less sensitive gate triacs have better dv/dt
capability. If the load is resistive, it is acceptable to use a stan-
dard triac. However, if the load is a heavy inductive type, then an
alternistor triac, or back-to-back SCRs as shown in Figure
AN1007.9, is recommended. A series RC snubber network may
or may not be necessary when using an alternistor triac. Nor-
mally a snubber network is not needed when using an alternistor
because of its high dv/dt and dv/dt(c) capabilities. However,
latching network as described in Figure AN1007.8 may be
needed for low current load variations.
Zero Crossing Turn-on, Normally Open
Relay Circuits
When a power circuit is mechanically switched on and off
mechanically, generated high-frequency components are gener-
ated that can cause interference problems such as RFI. When
power is initially applied, a step function of voltage is applied to
the circuit which causes a shock excitation. Random switch
opening stops current off, again generating high frequencies. In
addition, abrupt current interruption in an inductive circuit can
lead to high induced-voltage transients.
The latching characteristics of thyristors are ideal for eliminating
interference problems due to current interruption since these
devices can only turn off when the on-state current approaches
zero, regardless of load power factor.
On the other hand, interference-free turn-on with thyristors
requires special trigger circuits. It has been proven experimen-
6
R
in
V
cc
1
180
G
240 V ac
MT2
MT1
2
180
0.1 μF
3
4
5
0.047 μF
3.3 k
Load
Rin
Vcc
1
G
120 V ac
2
3
0.1
μ
F
Load
6
4
5
100
K
A
100
G
A
K
NS-SCR
NS-
SCR
Triac or
Alternistor
MT2
0.1
μ
f
100
Load
MT1
Hot
Neutral
120/240 V ac
G
180
for 120 V ac
360
for 240 V ac
Input
Rin
1
6
5
4
3
2
Load could be here
instead of lower location
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| BT136X_SERIES_D | Triacs logic level |
| BT136X_SERIES_E | Triacs sensitive gate |
| BT137-700E | TRIAC|700V V(DRM)|8A I(T)RMS|TO-220 |
| BT137-700G | TRIAC|700V V(DRM)|8A I(T)RMS|TO-220 |
| BT137B_SERIES | Triacs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BT136XSERIESD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Triacs logic level |
| BT136XSERIESE | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Triacs sensitive gate |
| BT137 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Triacs logic level |
| BT137_SERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Triacs |
| BT137_SERIES_E | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Triacs sensitive gate |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。