STMicroelectronics-ACST610-8FP
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ACST6
Overvoltage protected AC switch
Datasheet
–
production data
Benefits
OUT
•
Enables equipment to meet IEC 61000-4-5
•
High off-state reliability with planar technology
•
Needs no external overvoltage protection
•
Reduces the power passive component count
G
G
OUT
OUT
COM
•
High immunity against fast transients
COM
described in IEC 61000-4-4 standards
TO-220AB
TO-220FPAB
ACST610-8T
ACST610-8FP
Applications
OUT
OUT
•
AC mains static switching in appliance and
industrial control systems
•
Drive of medium power AC loads such as:
– Universal
motor of washing machine drum
– Compressor
for fridge or air conditioner
G
G
OUT
COM
COM
D²PAK
ACST610-8G
I²PAK
ACST610-8R
Description
The ACST6 series belongs to the ACS/ACST
power switch family built with A.S.D. (application
specific discrete) technology. This high
performance device is suited to home appliances
or industrial systems, and drives loads up to 6 A.
Figure 1. Functional diagram
OUT
This ACST6 switch embeds a Triac structure and
a high voltage clamping device able to absorb the
inductive turn-off energy and withstand line
transients such as those described in the
IEC 61000-4-5 standards. The ACST610 needs
only low gate current to be activated (I
GT
< 10
mA) and still shows a high noise immunity
complying with IEC standards such as IEC
61000-4-4 (fast transient burst test).
G
COM
Features
•
Triac with overvoltage protection
•
Low I
GT
(< 10 mA)
Table 1. Device summary
Symbol
Value
Unit
•
TO-220FPAB insulated package:
– complies
with UL standards
(file ref: E81734)
I
T(RMS)
V
DRM
/V
RRM
I
GT
6
A
V
800
10
– insulation
voltage: 2000 V
RMS
mA
May 2017
DocID7297 Rev 11
1/20
This is information on a product in full production.
Characteristics
ACST6
1
Characteristics
Table 2. Absolute ratings (limiting values)
Parameter
Symbol
Value
Unit
TO-220FPAB
T
c
= 92 °C
6
TO-220AB/
T
c
= 106 °C
I
T(RMS)
On-state rms current (full sine wave)
D
2
PAK / I
2
PAK
A
D
2
PAK with
T
amb
= 62 °C
1.5
1 cm
2
copper
F = 60 Hz
F = 50 Hz
t
p
= 16.7 ms
t
p
= 20 ms
t
p
= 10 ms
47
45
13
A
A
Non repetitive surge peak on-state current T
j
I
TSM
initial = 25 °C, ( full cycle sine wave)
I
2
t
I
2
t for fuse selection
A
2
s
Critical rate of rise on-state current
I
G
= 2 x I
G
T
,
(t
r
≤
100 ns)
dI/dt
F = 120 Hz
T
j
= 125 °C
100
A/µs
V
PP
P
G(AV)
P
GM
I
GM
T
stg
T
j
Non repetitive line peak pulse voltage
(1)
Average gate power dissipation
Peak gate power dissipation (t
p
= 20 µs)
Peak gate current (t
p
= 20 µs)
T
j
= 25 °C
T
j
= 125 °C
T
j
= 125 °C
T
j
= 125 °C
2
0.1
kV
W
W
A
10
1.6
Storage temperature range
-40 to +150
-40 to +125
260
°C
°C
°C
V
Operating junction temperature range
T
l
Maximum lead solder temperature during 10 ms (at 3 mm from plastic case)
TO-220FPAB
V
INS(RMS)
Insulation RMS voltage (60 seconds)
2000
Table 3. Electrical characteristics
Symbol
Test conditions
V
OUT
= 12 V, R
L
= 33
Ω
V
OUT
= 12 V, R
L
= 33
Ω
V
OUT
= V
DRM
R
L
= 3.3 k
Ω
Quadrant
T
j
Value
Unit
(1)
I
GT
I – II – III
I – II – III
I – II – III
25 °C
25 °C
125 °C
25 °C
25 °C
25 °C
125 °C
125 °C
25 °C
MAX.
10
1.0
0.2
25
mA
V
V
GT
V
GD
MAX.
MIN.
MAX.
MAX.
MAX.
MIN.
MIN.
MIN.
,
V
(2)
I
H
I
OUT
= 500 mA
I
G
= 1.2 x I
GT
I
G
= 1.2 x I
GT
mA
mA
mA
V/µs
A/ms
V
I
L
I – III
II
30
I
L
40
dV/dt
(2)
V
OUT
= 67 % V
DRM
, gate open
500
3.5
850
(2)
(dI/dt)
c
V
CL
(dV/dt)
c
= 15 V/µs
I
CL
= 0.1 mA, t
p
= 1 ms
1. Minimum
I is
guaranteed at 5% of I
max
GT
GT
2. For
both polarities of OUT pin referenced to COM pin
2/20
DocID7297 Rev 11
ACST6
Symbol
Characteristics
Table 4. Static characteristics
Test conditions
Value
Unit
I
OUT
= 2.1 A, t
p
= 500 µs
I
OUT
= 8.5 A, t
p
= 500 µs
Threshold voltage
1.4
1.7
0.9
80
(1)
V
TM
T
j
= 25 °C
MAX.
V
(1)
V
T0
T
j
= 125 °C
T
j
= 125 °C
T
j
= 25 °C
T
j
= 125 °C
MAX.
MAX.
MAX.
MAX.
V
(1)
R
d
Dynamic resistance
m
Ω
µA
µA
20
I
DRM
I
RRM
V
OUT
= V
DRM
/ V
RRM
500
1. For
both polarities of OUT pin referenced to COM pin
Table 5. Thermal resistances
Parameter
Symbol
Value
Unit
TO-220AB
TO-220FPAB
60
Junction to ambient
Junction to ambient (soldered on 1 cm
2
copper pad)
Rt
h(j-a)
°C/W
I
2
PAK
65
45
D
2
PAK
TO-220FPAB
4.25
R
th(j-c)
Junction to case for full cycle sine wave conduction
°C/W
TO-220AB
2.5
D
2
PAK , I
2
PAK
Figure 2. Maximum power dissipation versus
RMS on-state current
Figure 3. On-state RMS current versus case
temperature (full cycle)
P(W)
I
(A)
T(RMS)
8
7
6
7
6
5
4
3
2
1
180°
α
= 180°
α
= 180°
TO-220FPAB
TO-220AB
D²
P
A
K
I²
P
A
K
5
4
3
2
1
I
(A)
T
(°C)
T(RMS)
C
0
0
0
25
50
75
100
125
0
1
2
3
4
5
6
DocID7297 Rev 11
3/20
20
Characteristics
ACST6
Figure 4. On-state rms current versus ambient
temperature
Figure 5. Relative variation of thermal
impedance versus pulse duration
(free air convection, full cycle)
I
(A)
T(RMS)
K = [Z
/ R
th th
]
2.5
2.0
1.5
1.0
0.5
0.0
1.0E+00
D
2
P
A
K with
copper
surface = 1
cm
2
α
=180°
Z
th(j-c)
Z
th(j-a)
TO-220AB
D²
P
A
K
I²
P
A
K
TO-220F
P
A
B
TO220AB
1.0E-01
TO-220FPAB
I
2
P
A
K
t (s)
p
T (°C)
a
1.0E-02
1.0E-03
1.0E-01
1.0E+01
1.0E+03
0
25
50
75
100
125
Figure 6. Relative variation of gate trigger
current (I
GT
) and voltage (V
GT
) versus junction
temperature (typical values)
Figure 7. Relative variation of holding current
(I
H
) and latching current (I
L
) versus junction
temperature (typical values)
I
, V
GT GT
[T ]
/ I
, V
[T =
25 °C
]
I
, I
[T ]
/ I
, I
[T =
25 °C
]
j
GT GT
j
H
L
j
H
L
j
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.5
2.0
1.5
1.0
0.5
0.0
I
Q3
GT
I
Q1-Q 2
GT
V
GT
Q 1-Q2-Q 3
I
L
I
H
T (°C )
T
(°C )
j
j
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Figure 8. Surge peak on-state current
versus number of cycles
Figure 9. Non repetitive surge peak on-state
current versus sinusoidal pulse width
I
(A)
I
(A), Iꢀt
(Aꢀs)
TSM
TSM
1000
100
10
50
40
30
20
10
0
dl /dt limitation:
100 A / μs
T
initial = 25 °C
j
t = 20 ms
One cycle
I
TS M
Non repetitive
T initial
= 25 °C
j
Repetitive
=106 °C
T
C
Number of cycles
t
(ms)
p
Number of cycles
1
0.01
0.10
1.00
10.00
1
10
100
1000
4/20
DocID7297 Rev 11
ACST6
Characteristics
Figure 10. On-state characteristics
(maximum values)
Figure 11. Relative variation of critical rate of
decrease of main current (dI/dt)
c
versus
junction temperature
I
(A)
TM
(dl/dt) [T
] /
(dl/dt) [T =
125 °C]
c
j
c j
100
10
1
8
7
6
5
4
3
2
1
0
T max:
j
V
R
= 0.90 V
= 80 m
Ω
to
d
T =
125 °C
T =
25 °C
j
j
T (°C)
j
V
(V)
TM
25
50
75
100
125
0
1
2
3
4
5
Figure 12. Relative variation of static dV/dt
immunity versus junction temperature (gate
open)
Figure 13. Relative variation of leakage current
versus junction temperature
I
/I
DRM RRM
[T
;
V
/ V
[T =
125 °C; 800 V]
] / I
/I
dV/dt [T ] / dV/dt [T
= 125 °C]
j
DRM RRM DRM
RRM j
j
j
6
5
4
3
2
1
0
1.0E+00
1.0E-01
1.0E-02
V
= V
= 536 V
R
D
V
= V
= 800V
RRM
DRM
Different blocking voltages
V
= V
= 600 V
RRM
DRM
V
= V
= 200 V
RRM
DRM
T (°C)
j
T (°C)
j
1.0E-03
25
50
75
100
125
25
50
75
100
125
Figure 14. Relative variation of clamping
voltage (V
CL
) versus junction temperature
(minimum values)
Figure 15. Thermal resistance junction to
ambient versus copper surface under tab
5
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V
CL
[T ] / V
CL
[T =
25 °C]
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ꢆꢀ
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ꢃꢀ
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ꢁꢀ
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j
1.15
1.10
1.05
1.00
0.95
0.90
0.85
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ꢃꢅ
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T (°C)
j
ꢀ
ꢅ
ꢁꢀ
ꢁꢅ
ꢂꢀ
ꢂꢅ
ꢃꢀ
ꢃꢅ
ꢄꢀ
-50
-25
0
25
50
75
100
125
DocID7297 Rev 11
5/20
20
Application information
ACST6
2
Application information
2.1
Typical application description
The ACST6 device has been designed to control medium power load, such as AC motors in
home appliances. Thanks to its thermal and turn off commutation performances, the ACST6
switch is able to drive an inductive load up to 6 A with no turn off additional snubber. It also
provides high thermal performances in static and transient modes such as the compressor
inrush current or high torque operating conditions of an AC motor. Thanks to its low gate
triggering current level, the ACST6 can be driven directly by an MCU through a simple gate
Figure 16. Compressor control – typical diagram
Compressor
Compressor
AC Mains
AC Mains
PTC
PTC
Electronic
starter
ACST
logical circuitry
1
ACST
Start
switch
ACST
Run
switch
Electronic
thermostat
ACST
Rg
Rg
Rg
Gate
Driver
Gate
Driver
Power supply
Power supply
Compressor with integrated e-starter
Compressor with external electronic drive
6/20
DocID7297 Rev 11
ACST6
Application information
Figure 17. Universal drum motor control – typical diagram
Universal motor
Stator
Rotor
12V
AC Mains
Motor direction
setting
MCU
ACST
Speed motor
regulation
Rg
Vcc
MCU
2.2
AC line transient voltage ruggedness
In comparison with standard Triacs, which are not robust against surge voltage, the ACST6
is self-protected against over-voltage, specified by the new parameter V
CL
. The ACST6
switch can safely withstand AC line transient voltages either by clamping the low energy
spikes, such as inductive spikes at switch off, or by switching to the on state (for less than
10 ms) to dissipate higher energy shocks through the load. This safety feature works even
with high turn-on current ramp up.
ACST switch according to the IEC 61000-4-5 standard conditions. With the additional effect
of the load which is limiting the current, the ACST switch withstands the voltage spikes up to
2 kV on top of the peak line voltage. The protection is based on an overvoltage crowbar
recovers its blocking voltage capability after the surge and the next zero current crossing.
Such a non repetitive test can be done at least 10 times on each AC line voltage polarity.
DocID7297 Rev 11
7/20
20
Application information
ACST6
Figure 18. Overvoltage ruggedness test circuit for resistive and inductive loads for
IEC 61000-4-5 standards
R = 18
Ω
, L = 2 µH, Vsurge = 2 kV
Rg = 220
Ω
Surge generator
2kV surge
Rgene
Model of the load
Filtering unit
L
R
ACST6
AC Mains
Rg
Figure 19. Typical current and voltage waveforms across the ACST6 during
IEC 61000-4-5 standard test
V
= V
peak
CL
1.2/50 µs voltage surge
V
0
0
I
peak
I
= 120 A
8/20 µs current surge
dI/dt = 150 A/µs
8/20
DocID7297 Rev 11
ACST6
Ordering information scheme
3
Ordering information scheme
Figure 20. Ordering information scheme
ACS T 6
10 – 8
G TR
AC switch
Topology
T =
T
r
iac
On-state rms current
6 = 6 A
Triggering gate current
10 = 10 mA
Repetitive peak off-state voltage
8 = 800 V
Package
FP = TO-220F
P
A
B
T = TO-220AB
R = I²
P
A
K
G = D²
P
A
K
Delivery mode
TR =
T
a
pe and reel
Blank =
T
u
be
DocID7297 Rev 11
9/20
20
Package information
ACST6
4
Package information
•
•
•
Epoxy meets UL94, V0
Cooling method: by conduction (C)
Recommended torque value (TO220AB, TO220FPAB): 0.4 to 0.6 N·m
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
®
ECOPACK
®
is an ST trademark.
10/20
DocID7297 Rev 11
ACST6
Package information
4.1
TO-220AB package information
Figure 21. TO-220AB package outline
Resin gate 0.5 mm max.
protrusion
(1)
(1)
Resin gate accepted in one of the two positions
or in the symmetrical opposites
DocID7297 Rev 11
11/20
20
Package information
ACST6
Table 6. TO-220AB package mechanical data
Dimensions
Ref.
Millimeters
Inches
Min.
Max.
Min.
Max.
A
b
4.4
0.61
1.14
0.48
15.25
4.6
0.88
1.55
0.7
0.1732
0.024
0.1811
0.0346
0.0610
0.0276
0.6201
b1
c
0.0449
0.0189
0.6004
D
15.75
D1
E
1.27 typ.
0.0500 typ.
10
2.4
4.95
1.23
6.2
2.4
13
10.4
2.7
0.3937
0.0945
0.1949
0.0484
0.2441
0.0945
0.5118
0.1378
0.4094
0.1063
0.2028
0.052
e
e1
F
5.15
1.32
6.6
H1
J1
L
0.2598
0.1071
0.5512
0.1547
2.72
14
L1
L20
L30
θ
P
Q
3.5
3.93
16.40 typ.
28.90 typ.
0.6457 typ.
1.1378 typ.
3.75
2.65
3.85
2.95
0.1476
0.1043
0.1516
0.1161
12/20
DocID7297 Rev 11
ACST6
Package information
4.2
TO-220FPAB package information
Figure 22. TO-220FPAB package outline
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DocID7297 Rev 11
13/20
20
Package information
ACST6
Table 7. TO-220FPAB package mechanical data
Dimensions
Ref.
Millimeters
Inches
Min.
Max.
Min.
Max.
A
B
4.40
2.50
2.50
0.45
0.75
1.15
1.15
4.95
2.40
10.0
4.60
2.70
2.750
0.70
1.0
0.1739
0.0988
0.0988
0.0178
0.0296
0.0455
0.0455
0.1957
0.0949
0.3953
0.1818
0.1067
0.1087
0.0277
0.0395
0.0672
0.0672
0.2055
0.1067
0.4111
D
E
F
F1
F2
G
1.70
1.70
5.20
2.70
10.4
G1
H
L2
L3
L4
L5
L6
L7
Diam.
16 Typ.
0.6324 Typ.
28.6
9.8
30.6
10.6
3.6
1.1304
0.3874
0.1146
0.6285
0.3557
0.1186
1.2095
0.4190
0.1423
0.6482
0.3676
0.1265
2.9
15.9
9.00
3.00
16.4
9.30
3.20
14/20
DocID7297 Rev 11
ACST6
Package information
2
4.3
D PAK
package information
Figure 23. D
2
PAK package outline
DocID7297 Rev 11
15/20
20
Package information
ACST6
Table 8. D
2
PAK package mechanical data
Dimensions
Ref.
Millimeters
Inches
Min.
Max.
Min.
Max.
A
A1
A2
B
4.40
2.49
0.03
0.70
1.14
0.45
1.23
8.95
10.00
4.88
15.00
1.27
1.40
2.40
4.60
2.69
0.23
0.93
1.70
0.60
1.36
9.35
10.40
5.28
15.85
1.40
1.75
3.20
0.1739
0.0984
0.0012
0.0277
0.0451
0.0178
0.0486
0.3538
0.3953
0.1929
0.5929
0.0502
0.0553
0.0949
0.1818
0.1063
0.0091
0.0368
0.0672
0.0237
0.0538
0.3696
0.4111
0.2087
0.6265
0.0553
0.0692
0.1265
B2
C
C2
D
E
G
L
L2
L3
M
R
0.40 typ.
0.0158 typ.
V2
0°
8°
0°
8°
Figure 24. Footprint (dimensions in mm)
16.90
10.30
5.08
1.30
3.70
8.90
16/20
DocID7297 Rev 11
ACST6
Package information
2
4.4
I PAK package information
Figure 25. I
2
PAK package outline
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DocID7297 Rev 11
17/20
20
Package information
ACST6
Table 9. I
2
PAK package mechanical data
Dimensions
Ref.
Millimeters
Inches
Min.
Max.
Min.
Max.
A
A1
B
4.4
2.49
0.7
4.6
2.69
0.93
1.7
0.1739
0.0984
0.0277
0.0451
0.0178
0.0486
0.3538
0.3953
0.1929
0.6601
0.0502
0.5462
0.1818
0.1063
0.0368
0.0672
0.0237
0.0538
0.3696
0.4111
0.2087
0.6917
0.0553
0.5700
B2
C
1.14
0.45
1.23
8.95
10
0.6
C2
D
1.36
9.35
10.4
5.28
17.5
1.4
E
G
4.88
16.7
1.27
13.82
L
L2
L3
14.42
18/20
DocID7297 Rev 11
ACST6
Ordering information
5
Ordering information
Table 10. Ordering information
Order code
Marking
Package
Weight
Base Qty
Packing mode
ACST610-8FP
ACST610-8G
ACST610-8GTR
ACST610-8R
ACST610-8T
TO-220FPAB
D
2
PAK
2.4 g
1.5 g
1.5 g
2.3 g
1.5 g
50
50
Tube
Tube
ACST6108
D
2
PAK
1000
50
T
a
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Revision history
Table 11. Document revision history
Table 12.
Date
Revision
Changes
Jan-2002
7F
8
Previous issue.
Layout update. No content change.
09-May-2005
Document structure and parameter presentation revised for
consistency with other ACST documents. No technical changes.
Order codes updated.
18-Dec-2009
01-Jul-2010
9
10
Updated
Figure 20.
Minor text changes.
30-May-2017
11
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ACST6
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