U490B [TEMIC]
One-Shot Phase Control; 单次相位控制
| 型号： | U490B |
| 厂家： | 
TEMIC SEMICONDUCTORS |
| 描述： | One-Shot Phase Control |
| 文件： | 总6页 (文件大小：86K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
U490B
One-Shot Phase Control
Description
The monolithic integrated bipolar circuit, U490B, is a After successful triggering and the following delay time,
one-shot power control circuit, designed to control the an ignition pulse at the output is released. A further trig-
thyristor which is mainly used in electric stapler devices. gering is only possible after the elapse of the delay time.
The IC is preferred to realise a one-shot phase control,
where any phase angle and thus any intensity of the load
voltage is adjustable.
Features
Applications
Phase controlled thyristor ignition
Electric stapler devices
Triggering with time delay
Repetition time delay
Supply current 2 mA
Mains supply via resistor
Package: DIP8, SO8
L
S
1
D
1
1N4007
R
3
220 k
24 k
2 W
C
3
R
1
V
mains
1.5 nF
95 10866
230 V
V
3
8
S
C
1
R
2
2
Start
47 F/
10 V
delay
Trigger
control
Repetition
delay
220 k
4
C
Supply
stage
2
Sync.
N
GND
47 nF
D
Load
2
7
Phase control
R
7
Output
stage
R
220
4
33
Control
input
POR
Ramp
6
C
C
4
7
47 nF/
250 V
22 nF
5
R
5
C
5
C
6
68 k
47 k
150 nF
150 nF
Figure 1. Block diagram with external circuit
TELEFUNKEN Semiconductors
1 (6)
Rev. A1, 29-May-96
U490B
Pin Description
Pin
1
2
3
4
Symbol
NC
Trigger Triggering
Sync.
GND
Function
Not connected
NC
1
V
S
8
7
Output
Synchronization
Ground
Trigger
2
5
6
7
8
Contr
Ramp
Output
Control input
Ramp
Output
Sync.
3
Ramp
Contr
6
5
GND
4
V
S
Supply voltage
The circuit is released, when four periods of the line volt-
age have expired after build up of the operating voltage,
Supply, Pin 8
Internal voltage limiter enables a simple supply from the
mains via series resistor R .The supply voltage between
before the switch S is closed.
1
1
Pin 8 (V ) and ground (Pin 4) builts up via R and is
S
1
smoothed by the capacitor C
1.
Series resistor R can be calculated as follows:
1
Vmains – VSmax
S
1
R1max
0.85 x
where
closed
open
2 x Itot
V
V
I
Mains supply voltage
Maximum supply voltage
mains
Smax
V
8
I
I
V
3
tot
Smax
X
(Sync.)
I
I
Maximum current consumption of the IC
Current consumption of the
external components
Smax
X
V
8
V
2
(Trigger)
Phase Control, Pins 3, 5 and 6
”X”
V
6
The circuit is synchronized with mains supply through
(Ramp)
Pin 3. As long as the switch S is open, the circuit is in
1
wait state i.e., the capacitor C (150 nF) is discharged and
6
is kept in this state (High level). When the switch S is
closed, there is a current flow in Pin 2 which is evaluated
by the circuit. If this current flows after the elapse of delay
1
V
7
(Output)
50 ms
100 ms
150 ms
200 ms
”X”
0
time, then the phase control is released. Capacitor, C , is
6
t
1
t
then charged with I
100 A towards ground. At the
6
same time, there is a current flow of 100 A into Pin 5,
V
6
which results in voltage drop across resistor R . Control
5
V
5
– 1.5 V
voltage, V , is then 1.5 V lower internally.
150 mV
5
The output stage is released when the ramp voltage V is
6
equal to (V
1.5 V). When the voltage difference is
5
150 mV, it is again turned–off.
V
7
The result is an output pulse, whose phase shift to the zero
crossing of mains voltage is determined by the resistor R
95 10867
t
t
p
5
at control input Pin 5 (see fig. 2). Capacitor C is charged
6
to a value of
1.5 V. It remains there till the switch S
1
again opens and the repetition delay time is over.
Figure 2. Signal characteristics
2 (6)
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
U490B
Absolute Maximum Ratings
Reference point Pin 4 (GND), unless otherwise specified
Parameters
Symbol
Value
30
Unit
mA
Supply current
Pin 8
I
S
t
t
10 s
1 ms
i
150
s
Output stage
Input voltage
Input current
Pin 7
Pin 2, 3
V
– 0.5 V to V
I
S
5
30
mA
I
I
Input voltage
Junction temperature
Ambient temperature
Pin 5, 6
V
T
0 V to V
+125
– 10 to +100
– 40 to +125
I
j
8
C
C
C
T
amb
Storage temperature range
T
stg
Thermal Resistance
Parameters
Symbol
Value
Unit
K/W
Junction ambient
DIP8
SO8 on p.c.
SO8 on ceramic
R
thJA
110
220
140
Electrical Characteristics
V
S
7 V, T
= 25°C, reference point Pin 4 (GND), unless otherwise specified
amb
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
V
Supply voltage limitation
I
I
3 mA
Pin 8
V
S
7.2
7.4
8.2
8.4
9.2
9.4
S
S
30 mA
Current consumption
Voltage monitoring
V
S
7 V
Pin 8
Pin 8
I
2
mA
V
S
Switch-on threshold
Switch-off threshold
V
Son
Soff
5
3
V
Synchronization
Pin 3
Voltage limitation
I
I
1 mA
–1 mA
Pin 3 - 8
V
–V
1.5
0.75
V
A
3
3
lim
lim
Switch-on threshold
Switch-off threshold
Pin 3
I
120
35
Ton
I
Toff
Trigger input
Pin 2
Voltage limitation
I
I
1 mA
–1 mA
Pin 2 - 8
V
–V
1.5
0.75
V
A
2
2
lim
lim
Switch-on threshold
Switch-off threshold
Pin 2
I
I
120
35
Ton
off
Start delay time
Repetition delay time
f
50 Hz Pin 2-7
t
1
t
2
40
60
60
80
ms
mains
TELEFUNKEN Semiconductors
3 (6)
Rev. A1, 29-May-96
U490B
Parameters
Test Conditions / Pins
Pin 5, 6, 3
Symbol
Min.
Typ.
Max.
Unit
Phase control
Control input:
Pin 5
Input voltage range
Input current
V
2
50
V
130
V
A
I
S
2 V
2V
V
V
I
90
90
5
8
I
Ramp
Pin 6
Charge current
Discharge current
V
6
V – 0.5 V
8
I
ch
50
2
130
A
mA
U
5
4 V
–I
dis
Phase shift
Pin 7-5
C
6
150 nF
t
7
ms
s
V
V
2 V
dmax
5
t
600
V
8
dmin
5
Output stage, V
0 V
Pin 7
7
Output reverse current
Output current
Status OFF
Status ON
10
A
mA
I
–I
o(r)
100
100
o
Pulse width
C
6
150 nF, see figure 2
t
p
200
300
s
4 (6)
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
U490B
Dimensions in mm
Package: DIP8
94 8873
Package: SO8
94 8862
TELEFUNKEN Semiconductors
5 (6)
Rev. A1, 29-May-96
U490B
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It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems
with respect to their impact on the health and safety of our employees and the public, as well as their impact on
the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban
on these substances.
TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of
continuous improvements to eliminate the use of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain
such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer
application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized
application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of,
directly or indirectly, any claim of personal damage, injury or death associated with such unintended or
unauthorized use.
TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423
6 (6)
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
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