ACST1235-7GTR [STMICROELECTRONICS]
Overvoltage protected AC switch; 过电压保护交流开关
| 型号： | ACST1235-7GTR |
| 厂家： | 
ST |
| 描述： | Overvoltage protected AC switch |
| 文件： | 总13页 (文件大小：163K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ACST12
Overvoltage protected AC switch
Features
OUT
■ Triac with overvoltage crowbar technology
OUT
■ Low I (<10 mA) or high immunity
GT
(I <35 mA) version
GT
G
■ High noise immunity: static dV/dt > 2000 V/µs
G
OUT
COM
COM
Benefits
D2PAK
ACST1210-7G
ACST1235-7G
TO-220AB
ACST1210-7T
ACST1235-7T
■ 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
Figure 1.
Functional diagram
■ High immunity against fast transients
OUT
described in IEC 61000-4-4 standards
Applications
■ AC mains static switching in appliance and
industrial control systems
G
■ Drive of medium power AC loads such as:
– Universal motor of washing machine drum
– Compressor for fridge or air conditioner
COM
Table 1.
Symbol
IT(RMS)
VDRM/VRRM
IGT
Device summary
Description
Value
Unit
The ACST12 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 12 A.
®
12
A
V
700
10 or 35
mA
This ACST12 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 standard. The ACST1210-7 needs
a low gate current to be activated (I < 10 mA)
GT
and still provides a high electrical noise immunity
complying with the IEC 61000-4-4 standard. The
ACST1235-7 offers an extremely high static dV/dt
immunity of 2 kV/µs minimum.
TM: ACS is a trademark of STMicroelectronics
®: A.S.D. is a registered trademark of STMicroelectronics
December 2010
Doc ID 15238 Rev 4
1/13
www.st.com
13
Characteristics
ACST12
1
Characteristics
Table 2.
Symbol
Absolute ratings (limiting values)
Parameter
Value
Unit
TO-220AB
D2PAK
Tc = 104 °C
12
IT(RMS) On-state rms current full sine wave
A
D2PAK
with 1cm2 of Cu
Tamb = 47
°C
2
F = 60 Hz
F = 50 Hz
tp = 16.7 ms
tp = 20.0 ms
tp = 10 ms
126
120
95
A
A
Non repetitive surge peak on-state current
Tj initial = 25 °C,( full cycle sine wave)
ITSM
I2t
I2t for fuse selection
A2s
Critical rate of rise on-state current
IG = 2 x IGT, (tr ≤ 100 ns)
Non repetitive line peak pulse voltage (1)
dI/dt
VPP
F = 120 Hz
Tj = 125 °C
100
A/µs
Tj = 125 °C
Tj = 125 °C
Tj = 125 °C
Tj = 125 °C
2
kV
W
W
A
PG(AV) Average gate power dissipation
0.1
10
PGM
IGM
Tstg
Tj
Peak gate power dissipation (tp = 20 µs)
Peak gate current (tp = 20 µs)
1.6
Storage temperature range
- 40 to + 150
- 40 to + 125
260
°C
°C
°C
Operating junction temperature range
Tl
maximum lead soldering temperature during 10 s (at 3 mm from plastic case)
1. According to test described in IEC 61000-4-5 standard and Figure 19
Table 3.
Symbol
Electrical characteristics
Test conditions
Value
ACST1210-7 ACST1235-7
Unit
Unit
Quadrant
Tj
(1)
IGT
VOUT = 12 V, RL = 33 Ω
VOUT = 12 V, RL = 33 Ω
VOUT = VDRM, RL = 3.3 Ω
IOUT = 500 mA
I - II - III
I - II - III
I - II - III
25 °C
25 °C
125 °C
25 °C
25 °C
125 °C
MAX.
MAX.
MIN.
MAX.
MAX.
MIN.
MIN.
MIN.
MIN.
10
35
mA
V
VGT
VGD
1.0
0.2
V
(2)
IH
30
50
50
70
mA
mA
V/µs
IL
IG = 1.2 x IGT
I - II - III
dV/dt(2) VOUT = 67% VDRM, gate open
200
5.3
2000
(dV/dt)c = 15 V/µs
(dI/dt)c(2)
125 °C
25 °C
A/ms
V
Without snubber
14
VCL
ICL = 0.1 mA, tp = 1 ms
850
1. Minimum IGT is guaranteed at 5% of IGT max
2. For both polarities of OUT pin referenced to COM pin
2/13
Doc ID 15238 Rev 4
ACST12
Characteristics
Table 4.
Symbol
Static characteristics
Test conditions
Value
Unit
(1)
VTM
IOUT = 17 A, tp = 500 µs
Threshold voltage
Tj = 25 °C
Tj = 125 °C
Tj = 125 °C
Tj = 25 °C
Tj = 125 °C
MAX.
MAX.
MAX.
1.5
0.9
30
V
V
(1)
VT0
(1)
Rd
Dynamic resistance
mΩ
µA
mA
20
IDRM
IRRM
VOUT = VDRM/ VRRM
MAX.
1.5
1. For both polarities of OUT pin referenced to COM pin
Table 5.
Symbol
Thermal characteristics
Parameter
Value
Unit
TO-220AB
°C/W
°C/W
°C/W
°C/W
Rth(j-c) Junction to case (AC)
Rth(j-a) Junction to ambient
1.5
D2PAK
TO-220AB
60
45
D2PAK with 1 cm2 of Cu
Figure 2.
Maximum power dissipation versus Figure 3.
on-state rms current (full cycle)
On-state rms current versus case
temperature (full cycle)
P(W)
IT(RMS)(A)
13
15
α
=180 °
14
13
12
11
10
9
12
11
10
9
8
7
8
6
7
6
5
5
4
4
3
3
2
2
TC(°C)
IT(RMS)(A)
1
1
0
0
0
25
50
75
100
125
0
1
2
3
4
5
6
7
8
9
10
11
12
Figure 4.
On-state rms current versus
ambient temperature (free air
convection full cycle)
Figure 5.
Relative variation of thermal
impedance versus pulse duration
K=[Z /R
th th
]
I
(A)
T(RMS)
1.0E+00
1.0E-01
1.0E-02
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Z
D2PAK
With 1cm2 of cu
(j
th -
c)
Z
(j a)
th -
TO-220AB
T
(°C)
amb
t
(s)
p
0
25
50
75
100
125
1.0E-03
1.0E-02
1.0E-01
1.0E+00
1.0E+01
1.0E+02
1.0E+03
Doc ID 15238 Rev 4
3/13
Characteristics
ACST12
Figure 6.
On-state characteristics
(maximum values)
Figure 7.
Non repetitive surge peak on-state
current versus number of cycles
(T initial = 25 °C)
j
ITM (A)
ITSM(A)
130
1000
100
10
120
110
100
90
t=20ms
One cycle
Non repetitive
Tj initial=25 °C
80
70
60
50
40
30
20
Repetitive
TC=104 °C
Tj max :
to = 0.90 V
Rd = 30 mΩ
V
10
0
Number of cycles
100
Tj=125 °C
Tj=25 °C
VTM (V)
1
1
10
1000
0
1
2
3
4
5
Figure 8.
Non repetitive surge peak on-state Figure 9.
current for a sinusoidal pulse and
corresponding value of I t
Relative variation of gate triggering
current and gate voltage versus
junction temperature (typical value)
2
ITSM(A), I2t (A2s)
IGT, VGT[Tj] / IGT, VGT[Tj = 25 °C]
3.0
2.5
2.0
1.5
1.0
0.5
0.0
10000
1000
100
dI/dt limitation: 100 A/µs
Tj initial=25 °C
IGT Q3
ITSM
IGT Q1-Q2
I²t
VGT Q1-Q2-Q3
10
T (°C)
j
tP(ms)
1
-50
-25
0
25
50
75
100
125
0.01
0.10
1.00
10.00
Figure 10. Relative variation of holding
Figure 11. Relative variation of critical rate of
decrease of main current (di/dt)c
versus (dV/dt)c
current (I ) and latching current (I )
H
L
versus junction temperature
I ,I [T]/I , I [T = 25 °C]
H
L
j
H
L
j
(di/dt)c[(dV/dt)c] / Specified(di/dt)c
1.6
2.5
2.0
1.5
1.0
0.5
0.0
1.4
1.2
ACST12-7Cxx
1.0
0.8
Typical values
ACST12-7Sxx
0.6
IL
0.4
IH
Tj(°C)
100
0.2
(dV/dt)c (V/µs)
0.0
0.1
1
10
100
-50
-25
0
25
50
75
125
4/13
Doc ID 15238 Rev 4
ACST12
Characteristics
Figure 12. Relative variation of critical rate of Figure 13. Relative variation of static dV/dt
decrease of main current versus
junction temperature
immunity versus junction
temperature
(dI/dt)c[T ] / (dI/dt)c[T =125°C]
dV/dt[T ] / dV/dt[T =125°C]
j
j
j
j
12
11
10
11
10
VD=VR=469 V
9
9
8
7
6
5
4
3
2
1
0
8
7
6
5
4
3
2
1
0
T (°C)
j
T (°C)
j
25
50
75
100
125
25
50
75
100
125
Figure 14. Relative variation of maximum
Figure 15. Variation of thermal resistance
clamping voltage, V versus
junction temperature
junction to ambient versus copper
surface under tab
CL
VCL[TJ/VCL[TJ = 25 °C]
Rth(j-a)(°C/W)
1.15
1.10
1.05
1.00
0.95
0.90
0.85
80
70
60
50
40
30
20
10
0
Epoxy printed circuit board
FR4, copper thickness = 35 µm
D²PAK
Minimum values
SCU(cm²)
TJ(°C)
100
0
5
10
15
20
-50
-25
0
25
50
75
125
Doc ID 15238 Rev 4
5/13
Application information
ACST12
2
Application information
2.1
Typical application description
The ACST12 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
ACST12 switch is able to drive an inductive load up to 12 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 ACST1210-7 can be driven directly by a MCU
through a simple gate resistor as shown in Figure 16.
Figure 16. Compressor control – typical diagrams
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
6/13
Doc ID 15238 Rev 4
ACST12
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 ACST12
is self-protected against over-voltage, specified by the new parameter V . The ACST12
CL
switch can safely withstand AC line transient voltages either by clamping the low energy
spikes, such as the 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 18 represents the ACST12 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 ACST12 folds back safely to the on state as shown in Figure 19. The
ACST12 recovers its blocking voltage capability after the surge and the next zero crossing
current. Such a non repetitive test can be done at least 10 times on each AC line voltage
polarity.
Doc ID 15238 Rev 4
7/13
Application information
ACST12
Figure 18. Overvoltage ruggedness test circuit for resistive and inductive loads for
IEC 61000-4-5 standards
R = 20 Ω, L = 2 µH, Vsurge = 2 kV
Surge generator
2kV surge
Rgene
Model of the load
Filtering unit
L
R
ACST12
AC Mains
Rg
Figure 19. Typical voltage and current waveforms across the ACST12
during IEC 61000-4-5 standard test
V
= V
CL
peak
1.2/50 µs voltage surge
V
0
0
8/20 µs current surge
I
8/13
Doc ID 15238 Rev 4
ACST12
Ordering information scheme
3
Ordering information scheme
Figure 20. Ordering information scheme
ACS T 12 10 - 7 G TR
AC switch
Topology
T = Triac
On-state rms current
12 = 12 A
Sensitivity
10 = 10 mA
35 = 35 mA
Voltage
7 = 700 V
Package
G = D²PAK
T = TO-220AB
Delivery mode
TR = Tape and reel (DPAK)
Blank = Tube (TO-220FPAB, DPAK)
Doc ID 15238 Rev 4
9/13
Package information
ACST12
4
Package information
●
●
Epoxy meets UL94, V0
Recommended torque (TO-220AB): 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
Millimeters
Ref.
Inches
Min. Max.
Min.
Max.
A
C
4.40
1.23
2.40
0.49
0.61
1.14
1.14
4.95
2.40
10
4.60
1.32
2.72
0.70
0.88
1.70
1.70
5.15
2.70
10.40
0.173
0.048
0.094
0.019
0.024
0.044
0.044
0.194
0.094
0.393
0.181
0.051
0.107
0.027
0.034
0.066
0.066
0.202
0.106
0.409
A
H2
D
Dia
C
E
L5
L7
F
F1
F2
G
L6
L2
F2
F1
D
L9
G1
H2
L2
L4
L5
L6
L7
L9
M
L4
16.4 typ.
0.645 typ.
F
M
13
14
0.511
0.104
0.600
0.244
0.137
0.551
0.116
0.620
0.259
0.154
G1
E
2.65
15.25
6.20
3.50
2.95
15.75
6.60
3.93
G
2.6 typ.
0.102 typ.
Diam.
3.75
3.85
0.147
0.151
10/13
Doc ID 15238 Rev 4
ACST12
Package information
2
Table 7.
D PAK dimensions
Dimensions
Millimeters
Min. Typ. Max. Min. Typ. Max.
Ref.
Inches
A
4.30
4.60 0.169
2.69 0.098
0.23 0.001
0.93 0.027
0.181
0.106
0.009
0.037
A
A1 2.49
A2 0.03
E
C2
L2
B
0.70
B2 1.25 1.40
0.45
C2 1.21
D
0.048 0.055
L
C
0.60 0.017
1.36 0.047
9.35 0.352
10.28 0.393
5.28 0.192
15.85 0.590
1.40 0.050
1.75 0.055
0.024
0.054
0.368
0.405
0.208
0.624
0.055
0.069
L3
A1
B2
B
R
C
D
E
G
L
8.95
10.00
4.88
G
A2
2mm min.
FLAT ZONE
15.00
L2 1.27
L3 1.40
R
V2
0.40
0.016
V2
0°
8°
0°
8°
Figure 21. Footprint (dimensions in mm)
16.90
10.30
5.08
1.30
3.70
8.90
Doc ID 15238 Rev 4
11/13
Ordering information
ACST12
5
Ordering information
Table 8.
Order code
ACST1210-7T
Ordering information
Marking
Package
Weight
Base qty
Packing mode
TO-220AB
D2PAK
2.3 g
1.5 g
1.5 g
2.3 g
1.5 g
1.5 g
50
50
Tube
Tube
ACST1210-7G
ACST1210-7GTR
ACST1235-7T
ACST12107
D2PAK
1000
50
Tape and reel
Tube
TO-220AB
D2PAK
ACST1235-7G
ACST1235-7GTR
ACST12357
50
Tube
D2PAK
1000
Tape and reel
6
Revision history
Table 9.
Date
Document revision history
Revision
Changes
02-Dec-2008
13-Apr-2010
1
First issue.
Updated ECOPACK statement. Reformatted for consistency with
other datasheets in this product class.
2
01-Jul-2010
07-Dec-2010
3
4
Updated Figure 20.
Updated Table 3.
12/13
Doc ID 15238 Rev 4
ACST12
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Doc ID 15238 Rev 4
13/13
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