U490B-XFPG3 [ATMEL]
Analog Circuit, 1 Func, BIPolar, PDSO8, SO-8;
| 型号： | U490B-XFPG3 |
| 厂家： | 
ATMEL |
| 描述： | Analog Circuit, 1 Func, BIPolar, PDSO8, SO-8 光电二极管 |
| 文件： | 总6页 (文件大小：52K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
U490B
One-Shot Phase-Control IC
Description
The monolithic integrated bipolar circuit, U490B, is a voltage is adjustable. After successful triggering and the
one-shot power control circuit, designed to control the following delay time, an ignition pulse at the output is re-
thyristor which is mainly used in electric stapler devices. leased. A further triggering is only possible after the
The IC is preferred to realise a one-shot phase control, elapse of the delay time.
where any phase angle and thus any intensity of the load
D Supply current x2 mA
D Mains supply via resistor
Applications
Features
D Phase controlled thyristor ignition
D Triggering with time delay
D Repetition time delay
D Electric stapler devices
Block Diagram
S
1
D
1
L
1N4007
R
3
220 kW
24 kW/
2 W
C
3
R
1
V
mains
1.5 nF
230 VX
V
S
3
8
C
1
R
2
2
Start
47 mF
10 V
delay
220 kW
N
4
C
Supply
stage
Trigger
control
2
Sync.
GND
47 nF
Repetition
delay
D
2
Load
7
Phase control
R
33 W
Output
stage
7
R
220 W
4
Control
input
POR
Ramp
6
C
C
4
7
U490B
47 nF/
22 nF
5
250 VX
R
5
[68 kW
C
C
6
5
47 kW
150 nF
150 nF
Figure 1. Block diagram with external circuit
Ordering Information
Extended Type Number
U490B-x
Package
Remarks
DIP8
SO8
SO8
Tube
Tube
Taped and reeled
U490B-xFP
U490B-xFPG3
Rev. A3, 12-Jan-01
1 (6)
U490B
Pin Description
Pin
1
2
3
4
5
6
7
8
Symbol
n.c.
Trigger Triggering
Sync.
GND
Contr
Ramp
Function
Not connected
n.c.
1
V
S
8
7
Output
Synchronization
Ground
Control input
Ramp
Trigger
2
U490B
Sync.
3
Ramp
Contr
6
5
Output Output
Supply voltage
GND
4
V
S
Figure 2. Pinning
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
S
1
closed
open
V
mains – VSmax
2 x Itot
R
1max [ 0.85 x
where
V
mains
V
Smax
+ Mains supply voltage
+ Maximum supply voltage
V
8
V
3
(Sync.)
I
I
I
+ I
)I
tot
Smax X
+ 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”
The circuit is synchronized with mains supply through
V
6
(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)
time, then the phase control is released. Capacitor, C , is
6
50 ms
100 ms
150 ms
200 ms
”X”
0
then charged with I + 100 mA towards ground. At the
6
t
1
t
same time, there is a current flow of [ 100 mA into Pin 5,
which results in voltage drop across resistor R . Control
5
V
6
voltage, V , is then 1.5 V lower internally.
5
V – 1.5 V
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
5
t
t
p
at control input Pin 5 (see fig. 3). 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 3. Signal characteristics
2 (6)
Rev. A3, 12-Jan-01
U490B
Absolute Maximum Ratings
Reference point Pin 4 (GND), unless otherwise specified
Parameters
Symbol
Value
Unit
Supply current
Pin 8
I
i
30
150
mA
mA
S
t v 10 ms
s
Output stage
Input voltage
Input current
Pin 7
Pin 2, 3
V
" I
" I
– 0.5 to V
V
mA
mA
I
S
5
30
I
I
t v 1 ms
Input voltage
Pin 5, 6
V
T
0 to V
+125
– 10 to +100
– 40 to +125
V
I
j
8
ꢀ
Junction temperature
Ambient temperature
Storage temperature range
C
C
ꢀ
T
amb
ꢀ
T
stg
C
Thermal Resistance
Parameters
Symbol
Value
Unit
Junction ambient
DIP8
SO8 on p.c.
SO8 on ceramic
R
R
R
110
220
140
K/W
K/W
K/W
thJA
thJA
thJA
Electrical Characteristics
V + 7 V, T
= 25°C, reference point Pin 4 (GND), unless otherwise specified
S
amb
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
Supply voltage limitation I + 3 mA
Pin 8
V
S
V
S
7.2
7.4
8.2
8.4
9.2
9.4
V
V
S
I + 30 mA
S
Current consumption
Voltage monitoring
V + 7 V
S
Pin 8
Pin 8
I
2
mA
S
Switch-on threshold
Switch-off threshold
V
V
5
3
V
V
Son
Soff
Synchronization
Pin 3
Voltage limitation
I +1 mA
I + –1 mA
3
Pin 3 - 8
V
–V
1.5
0.75
V
V
3
lim
lim
Switch-on threshold
Switch-off threshold
Pin 3
I
120
35
mA
mA
Ton
I
Toff
Trigger input
Pin 2
Voltage limitation
I +1 mA
I + –1 mA
2
Pin 2 - 8
V
–V
1.5
0.75
V
V
2
lim
lim
Switch-on threshold
Switch-off threshold
Pin 2
I
I
120
35
mA
mA
Ton
off
T
Start delay time
Repetition delay time
f
+ 50 Hz Pin 2-7
t
t
40
60
60
80
ms
ms
mains
1
2
Rev. A3, 12-Jan-01
3 (6)
U490B
Electrical Characteristics (continued)
V + 7 V, T
= 25°C, reference point Pin 4 (GND), unless otherwise specified
S
amb
Parameters
Phase control
Test Conditions / Pins
Pin 5, 6, 3
Symbol
Min.
Typ.
Max.
Unit
Control input:
Pin 5
Input voltage range
Input current
V
2
50
V
130
V
mA
I
S
2 V v V v V
I
90
90
5
8
I
Ramp
Pin 6
Charge current
Discharge current
2V v V v V – 0.5 V
I
ch
50
2
130
mA
mA
6
8
U + 4 V
5
–I
dis
Phase shift
Pin 7-5
t
7
ms
C + 150 nF, V + 2 V
dmax
6
5
t
600
ms
dmin
V + V
5
8
Output stage, V + 0 V
Pin 7
7
Output reverse current
Output current
Pulse width
Status OFF
Status ON
C +150 nF, see figure 3
6
"I
–I
10
mA
mA
ms
o(r)
100
100
o
t
200
300
p
4 (6)
Rev. A3, 12-Jan-01
U490B
Package Information
Package DIP8
Dimensions in mm
9.8
9.5
7.77
7.47
1.64
1.44
4.8 max
3.3
6.4 max
0.5 min
0.36 max
0.58
0.48
9.8
8.2
2.54
7.62
8
5
technical drawings
according to DIN
specifications
13021
1
4
Package SO8
Dimensions in mm
5.2
4.8
5.00
3.7
4.85
1.4
0.2
0.25
0.10
0.4
3.8
1.27
6.15
5.85
3.81
8
5
technical drawings
according to DIN
specifications
13034
1
4
Rev. A3, 12-Jan-01
5 (6)
U490B
Ozone Depleting Substances Policy Statement
It is the policy of Atmel Germany 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.
Atmel Germany GmbH 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.
Atmel Germany GmbH 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 Atmel Wireless & Microcontrollers products for any unintended
or unauthorized application, the buyer shall indemnify Atmel Wireless & Microcontrollers 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.
Data sheets can also be retrieved from the Internet:
http://www.atmel–wm.com
Atmel Germany GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2594, Fax number: 49 (0)7131 67 2423
6 (6)
Rev. A3, 12-Jan-01
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