ACS108-6SA-TR [STMICROELECTRONICS]
AC switch family Transient voltage protected AC Switch (ACSTM); AC开关系列瞬态电压保护交流开关（ ACSTM ）
| 型号： | ACS108-6SA-TR |
| 厂家： | 
ST |
| 描述： | AC switch family Transient voltage protected AC Switch (ACSTM) |
| 文件： | 总11页 (文件大小：131K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ACS108-6S
AC switch family
Transient voltage protected AC Switch (ACS™)
Main product characteristics
IT(RMS)
DRM/VRRM
IGT
0.8 A
600 V
10 mA
COM
V
COM
G
COM
G
OUT
OUT
■ Overvoltage protection by crowbar technology
■ High noise immunity - static dV/dt > 500 V/µs
TO-92
SOT-223
ACS108-6SN
ACS108-6SA
Applications
Description
■ AC ON/OFF static switching in appliances and
industrial control systems
The ACS108-6S belongs to the AC line switch
family. This high performance switch can control a
load of up to 0.8A.
■ Drive of low power high inductive or resistive
loads like:
– relay, valve, solenoid,
– dispenser, door lock
– pump, fan, micro-motor
The ACS108-6S switch includes an overvoltage
crowbar structure to absorb the overvoltage
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.
Benefits
■ Needs no external protection snubber or
varistor.
Functional diagram
■ Enables equipment to meet IEC 61000-4-5.
■ Reduces component count by up to 80%.
■ Interfaces directly with the micro-controller.
OUT
■ Common package tab connection supports
connection of several alternating current
switches (ACS) on the same cooling pad.
■ Integrated structure based on ASD(1)
G
technology
Order code
Part number
Marking
COM
ACS108-6SA
ACS108-6SA-TR
ACS108-6SA-AP
ACS108-6SN-TR
ACS1086S
ACS1086S
ACS1086S
ACS1086S
COM Common drive reference to connect to the
mains
OUT Output to connect to the load.
G
Gate input to connect to the controller through
gate resistor
TM: ACS is a trademark of STMicroelectronics
1. ASD: Application Specific Devices
January 2006
Rev 1
1/11
www.st.com
11
1 Characteristics
ACS108-6S
1
Characteristics
Table 1.
Symbol
Absolute maximum ratings (Tamb = 25 °C, unless otherwise specified)
Parameter
Value
Unit
Tlead = 75 °C
Tamb = 75 °C
TO-92
0.8
IT(RMS)
RMS on-state current (full sine wave)
SOT-223
A
T
amb = 61 °C
TO-92
0.45
7.6
f = 60 Hz
f = 50 Hz
t = 16.7 ms
t = 20 ms
Non repetitive surge peak on-state current
(full cycle sine wave, Tj initial = 25 °C)
ITSM
A
7.3
A2s
I²t
I²t Value for fusing
tp = 10 ms
0.38
Critical rate of rise of on-state current
IG = 2xIGT, tr ≤ 100 ns
Tj = 125 °C
dI/dt
f = 120 Hz
tp = 20 µs
100
A/µs
Non repetitive line peak mains voltage(1)
Peak gate current
VPP
IGM
Tj = 25 °C
Tj = 125 °C
Tj = 125 °C
Tj = 125 °C
2
1
kV
A
VGM
Peak positive gate voltage
10
0.1
V
PG(AV)
Average gate power dissipation
W
Tstg
Tj
Storage junction temperature range
Operating junction temperature range
-40 to +150
-30 to +125
°C
1. according to test described by IEC 61000-4-5 standard and Figure 16
Table 2.
Symbol
Electrical characteristics (Tj = 25 °C, unless otherwise specified)
Test conditions
Quadrant
Value
Unit
(1)
II - III
II - III
II - III
MAX
MAX
MIN
10
1
mA
IGT
VOUT = 12 V, RL = 33 Ω
VGT
V
V
VGD
VOUT = VDRM, RL =3.3 kΩ, Tj = 125 °C
IOUT = 100 mA
0.15
25
(2)
MAX
mA
IH
(2)
IG = 1.2 x IGT
MAX
MIN
MIN
MIN
30
500
0.3
mA
IL
dV/dt (2)
VOUT = 67% VDRM, gate open, Tj = 125 °C
V/µs
A/ms
V
(dI/dt)c (2)
VCL
Without snubber (15 V/µs), turn-off time ≤ 20 ms, Tj = 125 °C
ICL = 0.1 mA, tp = 1 ms, Tj = 125 °C
650
1. minimum I is guaranteed at 10% of I max
GT
GT
2. for both polarities of OUT referenced to COM
2/11
ACS108-6S
1 Characteristics
Table 3.
Symbol
Static electrical characteristics
Test conditions
Value
Unit
V
(1)
(1)
(1)
ITM= 1.1 A, tp = 500 µs
Tj = 25 °C
MAX
MAX
MAX
1.3
0.90
300
VTM
VTO
RD
Tj = 125 °C
Tj = 125 °C
V
mΩ
Tj = 25 °C
2
µA
IDRM
IRRM
VOUT = 600 V
MAX
Tj = 125 °C
0.2
mA
1. for both polarities of OUT referenced to COM
Table 4.
Symbol
Rth (j-l)
Rth (j-l)
Thermal resistance
Parameter
Value
Unit
Junction to lead (AC)
Junction to tab (AC)
TO-92
60
SOT-223
TO-92
25
150
60
°C/W
Rth (j-a)
Junction to ambient
S = 5 cm²
SOT-223
Figure 1. Maximum power dissipation vs RMS Figure 2. RMS on-state current vs ambient
on-state current (full cycle)
temperature (full cycle)
P (W)
IT(RMS) (A)
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
ACS108-6SN (with 5cm² copper surface under tab)
ACS108-6SA
180°
Tamb °C
IT(RMS) (A)
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0
25
50
75
100
125
3/11
1 Characteristics
ACS108-6S
Figure 4. Relative variation of gate trigger
Figure 3. Relative variation of junction to
ambient thermal impedance vs
pulse duration and package
current, holding current and
latching current vs junction
temperature
K=[Zth(j-a)/Rth(j-a)
]
I
GT, I
H, I [T
j] / I
GT, IH, IL
[T =25°
C]
L
j
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.E+00
1.E-01
1.E-02
IGT
TO-92
IL & IH
SOT-223
tP (S)
Tj(°C)
10 20 30 40 50 60 70 80 90 100 110 120 130
-40 -30 -20 -10
0
1.E-03
1.E-02
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
Figure 5. Non repetitive surge peak on-state Figure 6. Non repetitive surge peak on-state
current vs number of cycles .
current for a sinusoidal pulse with
width tp < 10 ms, and corresponding
value of I²t (Tj initial = 25 °C).
I
TSM(A)
ITSM(A), I²t (A²
s)
10
9
8
7
6
5
4
3
2
1
0
1.E+03
1.E+02
1.E+01
1.E+00
1.E-01
Tj initial=25°C
t=20ms
One cycle
Non repetitive
ITSM
T
j
initial = 25 °C
Repetitive
amb = 75 °C
T
I²t
tp(ms)
Number of cycles
1000
0.01
0.10
1.00
10.00
1
10
100
4/11
ACS108-6S
1 Characteristics
Figure 7. On-state characteristics (maximal
values)
Figure 8. SOT-223 junction to ambient thermal
resistance versus copper surface
under tab (PCB FR4, copper
thickness 35 µm)
I
TM(A)
10.00
1.00
0.10
0.01
140
Tj max.:
to= 0.9 V
Rd= 300 mΩ
SOT-223
V
120
100
80
Tj=125°C
Tj=25°C
60
40
20
SCU(cm²)
VTM(V)
2.0
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0.0
0.5
1.0
1.5
2.5
3.0
3.5
4.0
Figure 9. Relative variation of critical rate of Figure 10. Relative variation of critical rate of
decrease of main current (di/dt)c
versus junction temperature
decrease of main current (di/dt)c vs
(dV/dt)c, with turn-off time < 20 ms
)
(dI/dt)c [ (dV/dt)c ] / Specified (dI/dt
c
(dI/dt)c [Tj] / (dI/dt)c [Tj=125 °C]
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
20
18
16
14
12
10
8
Vout = 400 V
Vout = 400 V
6
4
(dV/dt)c (V/µs)
2
Tj (°C)
0
55
65
75
85
95
105
115
125
0.1
1
10
100
Figure 11. Relative variation of static dV/dt
versus junction temperature
Figure 12. Relative variation of the maximal
clamping voltage versus junction
temperature (min value)
VCL [Tj] / VDRM
C]
T =125°
] / dV/dt [
dV/dt [Tj
j
8
7
6
5
4
3
2
1
0
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
Vout=400V
Tj(°C)
75
Tj(°C)
25
50
100
125
-25
0
25
50
75
100
125
5/11
2 AC line switch - basic application
ACS108-6S
2
AC line switch - basic application
The ACS108-6S switch is triggered by a negative gate current flowing from the gate pin G. The
switch can be driven directly by the digital controller through a resistor as shown in Figure 13.
Thanks to its overvoltage protection and turn-off commutation performance, the ACS108-6S
switch can drive a small power high inductive load with neither varistor nor additional turn-off
snubber.
Figure 13. Typical application program
Valve
AC Mains
V
MCU
ss
Rg
ACS108-6S
Power supply
V
dd
2.1
Protection against overvoltage: the best choice is ACS
In comparison with standard triacs, which are not robust against surge voltage, the ACS108-6S
is over-voltage self-protected, 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.
2.1.1 High inductive load switch-off: turn-off overvoltage clamping
With high inductive and low RMS current loads the rate of decrease of the current is very low.
An overvoltage can occur when the gate current is removed and the OUT current is lower than
IH.
As shown in Figure 14 and Figure 15, at the end of the last conduction half-cycle, the load
current decreases (1). The load current reaches the holding current level IH (2), and the ACS
turns off (3). The water valve, as an inductive load (up to 15 H), reacts as a current generator
and an overvoltage is created, which is clamped by the ACS (4). The current flows through the
ACS avalanche and decreases linearly to zero. During this time, the voltage across the switch is
limited to the clamping voltage VCL. The energy stored in the inductance of the load is
dissipated in the clamping section that is designed for this purpose. When the energy has been
dissipated, the ACS voltage falls back to the mains voltage value (5).
6/11
ACS108-6S
2 AC line switch - basic application
Figure 14. Effect of the switching off of a high Figure 15. Description of the different steps
inductive load - typical clamping
capability of ACS108-6S
during switching off of a high
inductive load
4
I OUT
VPEAK = V CL
1
IOUT
(5 mA/div)
3
3
2
VOUT
(200 V/div)
I H
4
1
VOUT
5
I H
VCL
2
5
100µs/div
2.1.2 AC line transient voltage ruggedness
The ACS108-6S switch is able to withstand safely the AC line transients either by clamping the
low energy spikes or by breaking over under high energy shocks, even with high turn-on current
rises.
The test circuit shown in Figure 16 is representative of the final ACS108-6S application, and is
also used to test the ACS switch according to the IEC 61000-4-5 standard conditions. Thanks
to the load limiting the current, the ACS108-6S switch withstands the voltage spikes up to 2 kV
above the peak line voltage. The protection is based on an overvoltage crowbar technology.
Actually, the ACS108-6S breaks over safely as shown in Figure 17. The ACS108-6S recovers
its blocking voltage capability after the surge (switch off back at the next zero crossing of the
current).
Such non-repetitive tests can be done 10 times on each AC line voltage polarity.
Figure 16. Overvoltage ruggedness test circuit Figure 17. Typical current and voltage
for resistive and inductive loads
with conditions equivalent to
IEC 61000-4-5 standards
waveforms across the ACS108-6S
during IEC 61000-4-5 standard test
VPEAK
I OUT
(2 A/div)
Surge generator
"1.2/50 waveform"
Model of the load
VOUT
Rgene
2
L
R
(200 V/div)
150
5µH
ACS108-6Sx
2.4 kV surge
Rg
220
200ns/div
7/11
3 Ordering information scheme
ACS108-6S
3
Ordering information scheme
ACS
1
08 - 6
S
A -TR
AC Switch series
Number of switches
Current
08 = 0.8 ARMS
Voltage
6 = 600 V
Sensitivity
S = 10 mA
Package
A = TO-92
N = SOT-223
Packing
TR = Tape and reel
AP = Ammopack (TO-92)
Blank = (TO-92) Bulk
(SOT-223) Tube
4
Package information
4.1
TO-92 Mechanical data
DIMENSIONS
REF
Millimeters
Inches
Min. Typ. Max. Min. Typ. Max.
A
A
B
C
D
E
F
1.35
2.54
0.053
0.100
a
4.70
0.185
B
C
4.40
0.173
0.500
D
E
F
12.70
3.70
0.50
0.146
0.019
a
8/11
ACS108-6S
4 Package information
4.2
SOT-223 Mechanical data
DIMENSIONS
Millimeters
Typ. Max. Min.
1.80
REF.
Inches
Typ. Max.
0.071
Min.
V
c
A
A
A1
B
A1
B
0.02
0.70
3.00
0.26
6.50
2.3
0.001
e1
0.60
2.90
0.24
6.30
0.80 0.024 0.027 0.031
3.10 0.114 0.118 0.122
0.32 0.009 0.010 0.013
6.70 0.248 0.256 0.264
0.090
D
B1
c
B1
D
4
2
e
E
H
1
3
e1
E
4.6
0.181
3.30
6.70
3.50
7.00
3.70 0.130 0.138 0.146
7.30 0.264 0.276 0.287
10° max
e
H
V
Figure 18. SOT-223 Footprint
3.25
1.32
5.16
7.80
1.32
2.30
0.95
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a Lead-free second level interconnect . The category of
second level interconnect is marked on the package and on the inner box label, in compliance
with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also
marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are
available at: www.st.com.
9/11
5 Ordering information
ACS108-6S
5
Ordering information
Part number
Marking
Package
Weight
Base Qty
Packing mode
ACS108-6SA
ACS108-6SA-TR
ACS108-6SA-AP
ACS108-6SN-TR
ACS1086S
ACS1086S
ACS1086S
ACS1086S
TO-92
TO-92
Bulk
Tape and Reel
Ammopack
Tape & reel
TO-92
SOT-223
6
Revision history
Date
Revision
Changes
05-Jan-2005
1
Initial release.
10/11
ACS108-6S
6 Revision history
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11/11
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