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Teilenummer | ACS120-7SFP |
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Beschreibung | Overvoltage protected AC switch | |
Hersteller | STMicroelectronics | |
Logo | ||
Gesamt 17 Seiten ACS120
Overvoltage protected AC switch (ACS™)
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Features
Blocking voltage: VDRM / VRRM = +/- 700 V
Avalanche controlled: VCL typ. = 1100 V
Nominal conducting current: IT(RMS) = 2 A
Gate triggering current: IGT < 10 mA
High noise immunity: static dV/dt > 500 V/µs
Benefits
Needs no more external protection snubber or
varistor
Enables equipment to meet IEC 61000-4-5
Reduces component count up to 80%
Interfaces directly with the micro controller
Eliminates any gate kick back on the micro-
controller
Allows straightforward connection of several
AC switches on same cooling pad
Datasheet - production data
Applications
AC static switching in appliance control
systems
Drive of low power high inductive or resistive
loads like:
– Relay, valve, solenoid, dispenser
– Pump, fan, micro-motor
– Defrost heater
Description
The ACS120 belongs to the AC line switch family.
This high performance switch circuit is able to
control a load of up to 2 A.
The ACS™ switch embeds a high voltage
clamping structure to absorb the inductive turn off
energy and a gate level shifter driver to separate
the digital controller from the main switch. It is
triggered with a negative gate current flowing out
of the gate pin.
Figure 1. Functional diagram
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May 2016
This is information on a product in full production.
DocID9469 Rev 4
1/17
www.st.com
AC line switch basic application
2 AC line switch basic application
ACS120
The ACS120 device is well adapted to washing machine, dishwasher, tumble drier,
refrigerator, air-conditioning systems, and cookware. It has been designed especially to
switch on and off low power loads such as solenoid, valve, relay, dispenser, micro-motor,
pump, fan and defrost heaters.
This AC switch is triggered by a negative gate current flowing out of the gate pin G. It can be
driven directly by the digital MCU through a resistor as shown on the typical application
diagram.
Thanks to its thermal and turn off commutation performance, the ACS120 switch can drive,
with no additional turn off snubber, an inductive load up to 2 A.
Figure 14. Typical application diagram
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2.1 Protection against overvoltage: the best choice is ACS
In comparison with standard Triacs the ACS120 is over-voltage self-protected, as specified
by the new parameter VCL. This feature is useful in two operating conditions: in case of
turn off of very inductive load, and in case of surge voltage that can occur on the electrical
network.
6/17 DocID9469 Rev 4
6 Page Package information
Table 7. DPAK package mechanical data
Dimensions
Ref. Millimeters
Inches(1)
Min.
A 2.18
A1 0.9
A2 0.03
b 0.64
b4 4.95
c 0.46
c2 0.46
D 5.97
D1 4.95
E 6.35
E1 4.32
e
e1 4.40
H 9.35
L 1.0
L2
L4 0.6
V2 -8°
1. Inches only for reference.
Typ.
2.286
Max.
2.40
1.10
0.23
0.90
5.46
0.61
0.60
6.22
5.60
6.73
5.50
4.70
10.40
1.78
1.27
1.02
+8°
Min.
0.0858
0.0354
0.0012
0.0252
0.1949
0.0181
0.0181
0.2350
0.1949
0.2500
0.1701
0.1732
0.3681
0.0394
0.0236
-8°
Typ.
0.0900
Figure 21. Footprint (dimensions in mm)
ACS120
Max.
0.0945
0.0433
0.0091
0.0354
0.2150
0.0236
0.0236
0.2449
0.2205
0.2650
0.2165
0.1850
0.4094
0.0701
0.0500
0.0402
+8°
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DocID9469 Rev 4
12 Page | ||
Seiten | Gesamt 17 Seiten | |
PDF Download | [ ACS120-7SFP Schematic.PDF ] |
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