STMICROELECTRONICS ACST1010-7T

ACST10
Overvoltage protected AC switch
Features
OUT
■
Triac with overvoltage crowbar technology
■
Low IGT (< 10 mA) or high immunity
(IGT < 35 mA) version
■
High noise immunity: static dV/dt > 2000 V/µs
■
TO-220FPAB insulated package: 1500 V rms
Benefits
■
Enables equipment to meet IEC 61000-4-5
■
High off-state reliability with planar technology
■
Need no external over voltage protection
■
Reduces the power passive component count
■
High immunity against fast transients
described in IEC 61000-4-4 standards
G
G
OUT
COM
OUT
COM
TO-220FPAB
ACST1010-7FP
ACST1035-7FP
TO-220AB
ACST1010-7T
ACST1035-7T
Figure 1.
Functional diagram
OUT
Applications
■
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
Description
The ACST10 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 10 A.
This ACST10 switch has a Triac structure and a
high voltage clamping device to absorb the
inductive turn-off energy and withstand transients
such as those described in the IEC 61000-4-5
standard. The ACST1010-7 needs a low gate
current to be activated (IGT < 10 mA) and still
shows a high noise immunity complying with IEC
61000-4-4 standard. The ACST1035-7 offers a
high static dV/dt immunity of 2 kV/µs minimum.
July 2010
G
COM
Table 1.
Device summary
Symbol
Value
Unit
IT(RMS)
10
A
VDRM/VRRM
700
V
IGT
10 or 35
mA
TM: ACS is a trademark of STMicroelectronics
®: A.S.D. is a registered trademark of STMicroelectronics
Doc ID 15237 Rev 3
1/13
www.st.com
13
Characteristics
ACST10
1
Characteristics
Table 2.
Absolute ratings (limiting values)
Symbol
IT(RMS)
ITSM
I2
t
Parameter
Unit
10
A
TO-220AB
Tc = 105 °C
TO-220FPAB
Tc = 84 °C
F = 60 Hz
tp = 16.7 ms
105
A
F = 50 Hz
tp = 20 ms
100
A
tp = 10 ms
66
A2 s
Tj = 125 °C
100
A/µs
On-state rms current (full sine wave)
Non repetitive surge peak on-state current
Tj initial = 25 °C, ( full cycle sine wave)
Value
2
I t for fuse selection
dI/dt
Critical rate of rise on-state current
IG = 2 x IGT, (tr ≤ 100 ns)
VPP
Non repetitive line peak pulse voltage (1)
Tj = 25 °C
2
kV
Average gate power dissipation
Tj = 125 °C
0.1
W
PGM
Peak gate power dissipation (tp = 20 µs)
Tj = 125 °C
10
W
IGM
Peak gate current (tp = 20 µs)
Tj = 125 °C
1.6
A
Tstg
Storage temperature range
-40 to +150
°C
Tj
Operating junction temperature range
-40 to +125
°C
Tl
Maximum lead solder temperature during 10 ms (at 3 mm from case)
260
°C
1500
V
PG(AV)
F = 120 Hz
VINS(RMS) Insulation rms voltage
T0-220FPAB
1. According to test described in IEC 61000-4-5 standard and Figure 17
Table 3.
Electrical characteristics
Value
Symbol
Test conditions
Quadrant
Tj
Unit
ACST1010-7
ACST1035-7
10
35
IGT(1)
VOUT = 12 V, RL = 33 Ω
I - II - III
25 °C
MAX.
VGT
VOUT = 12 V, RL = 33 Ω
I - II - III
25 °C
MAX.
1.0
V
VGD
VOUT = VDRM, RL = 3.3 Ω
I - II - III
125 °C
MIN.
0.2
V
IH(2)
IOUT = 500 mA
25 °C
MAX.
30
50
mA
IL
IG = 1.2 x IGT
25 °C
MAX.
50
70
mA
125 °C
MIN.
200
2000
V/µs
125 °C
MIN.
dV/dt(2)
(dI/dt)c(2)
I - II - III
VOUT = 67 % VDRM, gate open
(dV/dt)c = 15 V/µs
4.4
A/ms
Without snubber
VCL
12
ICL = 0.1 mA, tp = 1 ms
25 °C
MIN.
1. Minimum IGT is guaranteed at 5% of IGT max
2. For both polarities of OUT pin referenced to COM pin
2/13
mA
Doc ID 15237 Rev 3
850
V
ACST10
Table 4.
Characteristics
Static characteristics
Symbol
Test conditions
Value
Unit
VTM(1)
IOUT = 14.1 A, tp = 500 µs
Tj = 25 °C
MAX.
1.5
V
VT0(1)
Threshold voltage
Tj = 125 °C
MAX.
0.9
V
Rd(1)
Dynamic resistance
Tj = 125 °C
MAX.
35
mΩ
IDRM
IRRM
Tj = 25 °C
MAX.
20
µA
VOUT = VDRM/ VRRM
Tj = 125 °C
MAX.
1.2
mA
Value
Unit
TO-220AB
1.7
°C/W
TO-220FPAB
3.5
°C/W
TO-220AB
TO-220FPAB
60
°C/W
1. For both polarities of OUT pin referenced to COM pin
Table 5.
Thermal characteristics
Symbol
Parameter
Rth(j-c)
Junction to case (AC)
Rth(j-a)
Junction to ambient
Figure 2.
Maximum power dissipation vs.
rms on-state current (full cycle)
Figure 3.
P(W)
On-state rms current vs. case
temperature (full cycle)
IT(RMS)(A)
12
11
11
10
10
9
TO-220AB
9
TO-220FPAB
8
8
7
7
6
6
5
5
4
4
3
3
2
2
IT(RMS)(A)
1
TC(°C)
1
0
0
0
1
Figure 4.
2
3
4
5
6
7
8
9
10
0
25
On-state rms current vs. ambient
Figure 5.
temperature (free air convection full
cycle)
IT(RMS)(A)
1.0E+00
3,0
50
75
100
125
Relative variation of thermal
impedance vs. pulse duration
K=[Zth/Rth]
Zth(j-c)
TO -220AB
Zth(j-a)
2,5
TO-220FPAB
2,0
1,5
1.0E-01
1,0
TO-220AB
TO-220FPAB
0,5
Tamb(°C)
tp(s)
0,0
0
25
50
75
100
125
1.0E-02
1.0E-03
Doc ID 15237 Rev 3
1.0E-02
1.0E-01
1.0E+00
1.0E+01
1.0E+02
1.0E+03
3/13
Characteristics
Figure 6.
ACST10
On-state characteristics
(maximal values)
Figure 7.
ITM(A)
100
Non repetitive surge peak on-state
current vs. number of cycles
(Tj initial = 25 °C)
ITSM(A)
110
100
90
t=20ms
80
70
ITM (A)
One cycle
Non repetitive
Tj initial=25 °C
60
10
50
40
30
Tj=125 °C
VTM(V)
Tj=25 °C
20
Tj max :
Vto = 0.90 V
Rd = 35 mΩ
Number of cycles
0
1
0
1
Figure 8.
10000
Repetitive
TC=105 °C
10
2
3
4
5
1
10
Non repetitive surge peak on-state Figure 9.
current for a sinusoidal pulse and
corresponding value of I²t
ITSM(A), I2t (A2s)
3.0
dI/dt limitation: 100 A/µs
100
Relative variation of gate triggering
current (IGT) and gate triggering
voltage vs. junction temperature
IGT, VGT,[Tj/IGT[Tj = 25 °C]
Tj initial=25 °C
IGTQ3
2.5
ITSM
1000
IGTQ1-Q2
2.0
100
1.5
I²t
VGTQ1-Q2-Q3
1.0
10
0.5
tp(ms)
Tj(°C)
1
0.01
0.10
1.00
10.00
Figure 10. Relative variation of holding (IH)
and latching current (IL) vs.
junction temperature
2.5
0.0
-50
-25
0
25
50
75
100
125
Figure 11. Relative variation of critical rate of
decrease of main current (di/dt)c
vs. (dV/dt)c
IH,IL[TJ]/IH,IL[Tj = 25 °C]
(di/dt)c [(dV/dt)c] / Specified (di/dt)c
1.6
1.4
2.0
1.2
Typical values
0.8
1.0
0.4
IL
IH
0.2
TJ(°C)
4/13
ACST10-7Sxx
0.6
0.5
0.0
-50
ACST10-7Cxx
1.0
1.5
-25
0
25
50
75
100
125
0.0
0.1
Doc ID 15237 Rev 3
(dV/dt)c (V/µs)
1
10
100
ACST10
Characteristics
Figure 12. Relative variation of critical rate of
decrease of main current (di/dt)c
vs. junction temperature
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Figure 13. Relative variation of static dV/dt vs.
junction temperature
(dI/dt)c[Tj] / (dI/dt)c[Tj=125°C]
11
(dV/dt)[Tj] / (dV/dt)[Tj = 125 °C]
VD = VR = 469 V
10
9
8
7
6
5
4
3
2
25
50
Tj(°C)
1
Tj(°C)
75
100
0
25
125
50
75
100
125
Figure 14. Relative variation of maximum clamping voltage, VCL vs. junction temperature
1.15
VCL[Tj] / VCL[Tj = 25 °C]
1.10
1.05
1.00
Minimum values
0.95
0.90
tj(°C)
0.85
-50
-25
0
25
50
Doc ID 15237 Rev 3
75
100
125
5/13
Application information
ACST10
2
Application information
2.1
Typical application description
The ACST10 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
ACST10 switch is able to drive an inductive load up to 10 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 ACST1010-7 can be driven directly by an MCU
through a simple gate resistor as shown Figure 15.
Figure 15. Compressor control – typical diagram
Compressor
Compressor
AC Mains
AC Mains
2
PTC
Electronic
starter
1
logical circuitry
PTC
ACST
Start
switch
3
ACST
ACST
Run
switch
Electronic
thermostat
ACST
Rg
Power supply
Gate
Driver
Power supply
Compressor with integrated e-starter
6/13
Rg
Rg
Gate
Driver
Compressor with external electronic drive
Doc ID 15237 Rev 3
ACST10
Application information
Figure 16. Universal drum motor control – typical diagram
Universal motor
Stator
Rotor
12V
AC Mains
Motor direction
setting
MCU
Speed motor
regulation
ACST
Rg
Vcc
MCU
2.2
AC line transient voltage ruggedness
In comparison with standard Triacs, which are not robust against surge voltage, the ACST10
is self-protected against over-voltage, specified by the new parameter VCL. The ACST10
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.
The test circuit of Figure 17 represents the ACST10 application, and is used to stress the
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
technology. The ACST10 folds back safely to the on state as shown in Figure 18. The
ACST10 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.
Doc ID 15237 Rev 3
7/13
Application information
ACST10
Figure 17. Overvoltage ruggedness test circuit for resistive and inductive loads for
IEC 61000-4-5 standards
R = 8 Ω, L = 4 µH, VPP = 2 kV
Surge generator
2kV surge
Rgene
Model of the load
Filtering unit
R
L
ACST10
AC Mains
Rg
Figure 18. Typical current and voltage waveforms across the ACST10 during
IEC 61000-4-5 standard test
V peak = V CL
1.2/50 µs voltage surge
V
0
8/20 µs current surge
I
0
8/13
Doc ID 15237 Rev 3
ACST10
3
Ordering information scheme
Ordering information scheme
Figure 19. Ordering information scheme
ACS T 10 10 - 7 FP
AC switch
Topology
T = Triac
On-state rms current
10 = 10 A
Sensitivity
10 = 10 mA
35 = 35 mA
Voltage
7 = 700 V
Package
FP = TO-220FPAB
T = TO-220AB
Doc ID 15237 Rev 3
9/13
Package information
4
ACST10
Package information
●
Epoxy meets UL94, V0
●
Recommended torque: 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®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Table 6.
TO-220AB dimensions
Dimensions
Ref.
Dia
C
L5
L7
L6
L2
F2
D
L9
L4
Min.
Max.
Min.
Max.
A
4.40
4.60
0.173
0.181
C
1.23
1.32
0.048
0.051
D
2.40
2.72
0.094
0.107
E
0.49
0.70
0.019
0.027
F
0.61
0.88
0.024
0.034
F1
1.14
1.70
0.044
0.066
F2
1.14
1.70
0.044
0.066
G
4.95
5.15
0.194
0.202
G1
2.40
2.70
0.094
0.106
H2
10
10.40
0.393
0.409
L2
F
M
G1
Inches
A
H2
F1
Millimeters
16.4 typ.
0.645 typ.
L4
13
14
0.511
0.551
L5
2.65
2.95
0.104
0.116
L6
15.25
15.75
0.600
0.620
L7
6.20
6.60
0.244
0.259
L9
3.50
3.93
0.137
0.154
E
G
M
Diam.
10/13
Doc ID 15237 Rev 3
2.6 typ.
3.75
3.85
0.102 typ.
0.147
0.151
ACST10
Package information
Table 7.
TO-220FPAB dimensions
Dimensions
Ref.
A
B
H
Dia
L6
L2
L7
L3
L5
F1
L4
Inches
Min.
Max.
Min.
Max.
A
4.4
4.6
0.173
0.181
B
2.5
2.7
0.098
0.106
D
2.5
2.75
0.098
0.108
E
0.45
0.70
0.018
0.027
F
0.75
1
0.030
0.039
F1
1.15
1.50
0.045
0.059
F2
1.15
1.50
0.045
0.059
G
4.95
5.20
0.195
0.205
G1
2.4
2.7
0.094
0.106
H
10
10.4
0.393
0.409
D
F2
F
Millimeters
L2
16 Typ.
0.63 Typ.
L3
28.6
30.6
1.126
1.205
L4
9.8
10.6
0.386
0.417
L5
2.9
3.6
0.114
0.142
L6
15.9
16.4
0.626
0.646
L7
9.00
9.30
0.354
0.366
Diam.
3.00
3.20
0.118
0.126
E
G1
G
Doc ID 15237 Rev 3
11/13
Ordering information
5
ACST10
Ordering information
Table 8.
Ordering information
Order code
Marking
ACST1010-7T
Package
Weight
Base qty
Packing mode
TO-220AB
2.3 g
50
Tube
TO-220FPAB
2.3 g
50
Tube
TO-220AB
2.3 g
50
Tube
TO-220FPAB
2.3 g
50
Tube
ACST10107
ACST1010-7FP
ACST1035-7T
ACST10357
ACST1035-7FP
6
Revision history
Table 9.
12/13
Document revision history
Date
Revision
Changes
02-Dec-2008
1
First issue
13-Apr-2009
2
Updated ECOPACK statement. Reformatted for consistency with
other datasheets in this product class.
01-Jul-2010
3
Updated order code in Table 3.
Doc ID 15237 Rev 3
ACST10
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13/13