AVS10.pdf

(80 KB) Pobierz
AUTOMATIC VOLTAGE SWITCH
AVS10
AUTOMATIC VOLTAGE SWITCH (SMPS < 300W)
CONTROLLER
n
50/60Hz FULL COMPATIBILITY
n
INTEGRATED VOLTAGE REGULATOR
n
TRIGGERING PULSE TRAIN OF THE TRIAC
n
PARASITIC FILTER
n
LOW POWER CONSUMPTION
TRIAC
n
HIGH EFFICIENCY AND SAFETY SWITCHING
A1
A2
G
UNINSULATED PACKAGE : AVS10CB
n
n
INSULATED PACKAGE 2500V (RMS ) : AVS10CBI
n
V DRM =
± 600V
P
DIP8
(Plastic)
B
TO220AB
(Plastic)
I T(RMS) :8A
n
DESCRIPTION
The AVS10 kit is an automatic mains selector
(110/220V AC) to be used in SMPS < 300 W. It
is composed of 2 devices :
•
PIN CONNECTION
The Controller is optimized for low consump-
tion and high security triggering of the triac.
When connected to V SS , the mode input acti-
vates an additional option . If the main power
drops from 220V to 110V, the triac control re-
mains locked to the 220V mode and avoids
any high voltage spike when the voltage is re-
stored to 220V.
When connected to V DD , the mode input de-
sactivates this option .
•
The TRIAC is specially designed for this appli-
cation. An optimization between sensitivity and
dynamic parameters of the triac gate highly
reduces the losses of supply resistor and al-
lows excellent immunity against disturbances.
March 1995
1/8
384495978.002.png
AVS10
BLOCK DIAGRAM
AVS1ACP08
MODE
AVS10CB
or
AVS10CBI
7
V
V
SS
1
4
Supply
Reset
DD
MR
A2
Mains
mode
Controller
2
V M
8
Peak Voltage
Dectector
Parasitic
Filter
CP
Q
Zero Crossing
Detector
S
V
G
G
5
3
Triggering
Time
Controller
Q
CP
1
OSC/IN
OSC/OUT
2
A1
Oscillator
V
DD
3
4
ABSOLUTE MAXIMUM RATINGS
CONTROLLER AVS1ACP08
Symbol
Parameter
Value
Unit
Min.
Max.
V SS
Supply voltage
- 12
0.5
V
V I /V O
I / O voltage
V SS - 0.5
0.5
V
I I /I O
I / O current
- 40
+ 40
mA
T stg
Storage Temperature
- 60
+ 150
°
C
T oper
Operating Temperature code ” C ”
0
+ 70
° C
TRIAC AVS10CB / AVS10CBI T j = +25
°
C (unless otherwise specified)
Symbol
Parameter
Value
Unit
V DRM
Repetitive peak off-state voltage (2)
±
600
V
I T(RMS)
RMS on-state current
(360
AVS10CB
T C =80
°
C
8
A
°
conduction angle)
AVS10CBI T C =70 ° C
I TSM
Non repetitive surge peak on-state current
(T j initial = 25
°
C)
t = 8.3ms
t = 10ms
85
80
A
I 2 t
I 2 t value
t = 10ms
32
A 2 s
Repetitive
F = 50Hz
20
dI/dt
Critical rate of rise of on-state current (1)
A/
m
s
Non
Repetitive
100
dv/dt *
Linear slope up to 0.67 V DRM Gate open
T j = 110
°
C
50
V/
m
s
T stg
T j
Storage Temperature
Operating Junction Temperature
- 40 + 150
0 + 110
°
C
(1) Gate supply : I G = 100mA – di/dt = 1A / m
s
* For either polarity of electrode A 2 voltage with reference to electrode A 1
(2) Tj = 110
°
C
2/8
384495978.003.png
AVS10
THERMAL RESISTANCES
TRIAC AVS10CB / AVS10CBI
Symbol
Parameter
Value
Unit
Rth (j-a)
Junction-to-ambient
60
°
C/W
Rth (j-c) DC Junction-to-case for DC
AVS10CB
3.5
°
C/W
AVS10CBI
4.4
Rth (j-c) AC Junction-to-case for 360
°
conduction angle ( F = 50Hz)
AVS10CB
2.6
°
C/W
AVS10CBI
3.3
DC GENERAL ELECTRICAL CHARACTERISTICS
TRIAC AVS10CB / AVS10CBI
Symbol
Parameter
Value
Unit
Min.
Max.
V GD
V D =V DRM R L = 3.3k
W
Pulse duration> 20
m
s
Tj = 110
C
0.2
V
V TM *
I TM = 11A t p = 10ms
Tj = 25
°
C
1.75
V
I DRM *
DRM rated Gate open
Tj = 25
°
C
10
m
A
Tj = 110
C
500
* For either polarity of electrode A 2 voltage with reference to electrode A 1 .
3/8
°
°
384495978.004.png
AVS10
Fig.1 : Maximum RMS power dissipation versus RMS on-
state current (F = 60Hz).
(Curves are cut off by (dI/dt)c limitation)
Fig. 2 : Correlation between maximum mean power dissipa-
tion and maximum allowable temperatures (Tamb and
Tcase) for different thermal resistances heatsink + contact
(AVS10CB).
Fig. 3 : Correlation between maximum mean power dissipa-
tion and maximum allowable temperatures (Tamb and
Tcase) for different thermal resistances heatsink + contact
(AVS10CBI).
Fig. 4 : Non repetitive surge peak on-state current for a
sinusoidal pulse with width : t
Fig. 5 : On-state characteristics (maximum values).
3
10ms, and corresponding
value of I 2 t.
4/8
384495978.005.png
AVS10
DC GENERAL ELECTRICAL CHARACTERISTICS (continued)
CONTROLLER AVS1ACP08 T oper =25
°
C (unless otherwise specified)
Symbol
Parameter
Value
Unit
Min
Typ
Max
V SS (pin 1) (Vreg)
Shunt regulator
- 10
- 9
- 8
V
I SS (pin 1) (Vreg)
(@ V SS = 9V)
Supply current
0.4
30
mA
I SS (pin 1)
(@ triac gate non
connected)
Quiescent current
0.7
mA
f (pin 3)
(@ R = 91k
W
)
Oscillator frequency
42
44
46
kHz
(C = 100pF)
V M (pin 8) Vth (3)
Peak voltage of detection high-threshold
4.08
4.25
4.42
V
V M (pin 8) Vh (3)
Peak voltage of detection hysteresis
0.370
0.4
0.420
V
(1) V M (pin 8) Vth (3)
Zero-crossing detection high-threshold
95
110
125
mV
V M (pin 8) Vh (3)
Zero-crossing detection hysteresis
27
50
80
mV
(2)
Vrazht (4)
Power-on-reset activation threshold
Vreg x 0.89
V
(2)
Vrazlt (4)
Power-down-reset activation threshold
3
6.5
V
Mode (pin 7)
V IL
(4)
0.3 Vreg
V
V IH
(4)
0.7 Vreg
V G (pin 5)
V OL (I VG = 25mA)
Leakage current (V G =V DD )
650
+10
mV
m
NOTES :
(1) : This value gives a typical noise immunity on the zero-crossing detectionof 110mV x 1018/18 = 6.20V on the main supply
(2) : See following diagram
(3) : Voltage referred to V SS
(4) : Voltage referred to VDD
POWER-ON AND POWER-OFF RESET BEHAVIOUR
Un determined
Power-on
reset
Normal operation
Reset
power-off
Undetermined
0V
0V
-2.7V
-2.7V
Vrazlt
Vrazht
Vreg = V - V
SS
DD
5/8
A
384495978.001.png

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin