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PDF AVS12 Data sheet ( Hoja de datos )
| Número de pieza | AVS12 | |
| Descripción | AUTOMATIC VOLTAGE SWITCH SMPS < 500W | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AVS12 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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AVS12
AUTOMATIC VOLTAGE SWITCH (SMPS < 500W)
CONTROLLER
s 50/60Hz FULL COMPATIBILITY
s INTEGRATED VOLTAGE REGULATOR
s TRIGGERING PULSE TRAIN OF THE TRIAC
s PARASITIC FILTER
s LOW POWER CONSUMPTION
TRIAC
s HIGH EFFICIENCY AND SAFETY SWITCHING
s UNINSULATED PACKAGE : AVS12CB
s VDRM = ± 600V
s IT(RMS): 12A
P
DIP8
(Plastic)
A1
A2 G
B
TO 220AB
(Plastic)
DESCRIPTION
The AVS12 kit is an automatic mains selector
(110/220V AC) to be used in SMPS < 500 W. It
is composed of 2 devices :
• The Controller is optimized for low consump-
tion and high security triggering of the triac.
When connected to VSS, 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
comes back to 220V.
When connected to VDD, 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.
PIN CONNECTION
V
Osc / In
Osc / Out
V
1
2
3
4
8V
7 Mode
6 N.C.
5V
March 1995
1/8
1 page  
AVS12
DC GENERAL ELECTRICAL CHARACTERISTICS (continued)
CONTROLLER AVS1ACP08 Toper = 25°C (unless otherwise specified)
Symbo l
P ar ame te r
V al u e
Unit
Min T yp Max
VSS (pin 1) (Vreg)
ISS (pin 1) (Vreg)
(@ VSS = 9V)
ISS (pin 1)
(@ triac gate non
connected)
Shunt regulator
Supply current
Quiescent current
- 10 - 9
0.4
-8 V
30 mA
0.7 mA
f (pin 3)
(@ R = 91kΩ)
(C = 100pF)
Oscillator frequency
42 44 46 kHz
VM (pin 8) Vth (3)
VM (pin 8) Vh (3)
(1) VM (pin 8) Vth (3)
VM (pin 8) Vh (3)
(2) Vrazht (4)
Peak voltage of detection high-threshold
Peak voltage of detection hysteresis
Zero-crossing detection high-threshold
Zero-crossing detection hysteresis
Power-on-reset activation threshold
4.08
0.370
95
27
4.25
0.4
110
50
Vreg x 0.89
4.42
0.420
125
80
V
V
mV
mV
V
(2) Vrazlt (4)
Power-down-reset activation threshold
3
6.5 V
Mode (pin 7)
VIL (4)
VIH (4)
0.7 Vreg
0.3 Vreg
VG (pin 5)
VOL (IVG = 25mA)
Leakage current (VG = VDD)
650
+ 10
NOTES :
(1) : This value gives a typical noise immunity on the zero-crossing detection of 110mV x 1018/18 = 6.20V on the main supply
(2) : See following diagram
(3) : Voltage referred to VSS
(4) : Voltage referred to VDD
V
mV
µA
POWER-ON AND POWER-OFF RESET BEHAVIOUR
P ow er-on
Undetermined reset
0V
Normal operation
-2.7V
Vrazht
Vreg = V SS - VDD
Reset
power-off Undetermined
0V
-2.7V
Vra zlt
5/8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AVS12.PDF ] | |
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