ACS108-6SUF-TR [STMICROELECTRONICS]
Overvoltage protected AC switch (ACSâ¢); 过电压保护交流开关（ ACSA ?? ¢ ）
| 型号： | ACS108-6SUF-TR |
| 厂家： | 
ST |
| 描述： | Overvoltage protected AC switch (ACSâ¢) |
| 文件： | 总12页 (文件大小：251K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ACS108-6S
Overvoltage protected AC switch (ACS™)
Datasheet − production data
Features
■ Needs no external protection snubber or
varistor
■ Enables equipment to meet IEC 61000-4-5
■ Reduces component count by up to 80%
■ Interfaces directly with the micro-controller
COM
OUT
G
■ Common package tab connection supports
connection of several alternating current
switches (ACS) on the same cooling pad
SMBflat-3L
ACS108-6SUF
®
■ Integrated structure based on A.S.D.
technology
■ Overvoltage protection by crowbar technology
■ High noise immunity - static dV/dt > 500 V/µs
Applications
Figure 1.
Functional diagram
OUT
■ Alternating current on/off static switching in
appliances and industrial control systems
■ Drive of low power high inductive or resistive
loads like:
G
– relay, valve, solenoid,
– dispenser, door lock
– pump, fan, low power motor
COM
COM
Common drive reference to connect
to the mains
Output to connect to the load.
Gate input to connect to the controller
through gate resistor
Description
OUT
G
The ACS108-6S belongs to the AC line switch
family. This high performance switch can control a
load of up to 0.8 A.
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.
Table 1.
Device summary
Symbol
Value
Unit
IT(RMS)
VDRM/VRRM
IGT
0.8
600
10
A
V
mA
®: A.S.D. is a registered trademark of STMicroelectonics
TM: ACS is a trademark of STMicroelectronics
June 2012
Doc ID 11962 Rev 4
1/12
This is information on a product in full production.
www.st.com
12
Characteristics
ACS108-6S
1
Characteristics
Table 2.
Symbol
Absolute maximum ratings (T
= 25 °C, unless otherwise specified)
amb
Parameter
Value
Unit
T
amb = 62 °C
0.45
0.8
A
A
IT(RMS) On-state rms current (full sine wave)
Non repetitive surge peak on-state
Ttab = 113 °C
F = 60 Hz
F = 50 Hz
t = 16.7 ms
t = 20 ms
7.6
ITSM
current
A
7.3
(full cycle sine wave, Tj initial = 25 °C)
I2t
I²t Value for fusing
tp = 10 ms
0.38
A2s
Critical rate of rise of on-state current
IG = 2xIGT, tr ≤ 100 ns
dI/dt
F = 120 Hz Tj = 125 °C
Tj = 25 °C
100
A/µs
VPP
IGM
Non repetitive line peak mains voltage(1)
2
1
kV
A
Peak gate current
tp = 20 µs
Tj = 125 °C
Tj = 125 °C
Tj = 125 °C
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 19
Table 3.
Symbol
Electrical characteristics (T = 25 °C, unless otherwise specified)
j
Test conditions
Quadrant
Value
Unit
(1)
IGT
II - III
II - III
II - III
Max.
Max.
Min.
Max.
Max.
Min.
10
1
mA
VOUT = 12 V, RL = 33 Ω
VGT
VGD
V
VOUT = VDRM, RL =3.3 kΩ, Tj = 125 °C
IOUT = 100 mA
0.15
25
V
(2)
IH
mA
mA
V/µs
A/ms
(2)
IL
IG = 1.2 x IGT
30
dV/dt(2) VOUT = 67% VDRM, gate open, Tj = 125 °C
(dI/dt)c(2
500
Without snubber (15 V/µs), turn-off time ≤ 20 ms, Tj = 125 °C
Min.
Min.
0.3
)
VCL
ICL = 0.1 mA, tp = 1 ms, Tj = 125 °C
650
V
1. Minimum IGT is guaranteed at 10% of IGT max
2. For both polarities of OUT referenced to COM
2/12
Doc ID 11962 Rev 4
ACS108-6S
Characteristics
Table 4.
Symbol
Static electrical characteristics
Test conditions
Value
Unit
(1)
VTM
ITM = 1.1 A, tp = 500 µs
Threshold voltage
Tj = 25 °C
Tj = 125 °C
Tj = 125 °C
Tj = 25 °C
Tj = 125 °C
Max.
Max.
Max.
1.3
0.90
300
2
V
V
(1)
VTO
(1)
RD
mΩ
µA
mA
IDRM
IRRM
VOUT = 600 V
Max.
0.2
1. For both polarities of OUT referenced to COM
Table 5.
Symbol
Thermal resistance
Parameter
Value
Unit
Rth (j-t)
Junction to tab (AC)
Max.
Max.
14
75
°C/W
Rth (j-a) Junction to ambient
S = 5 cm²
Doc ID 11962 Rev 4
3/12
Characteristics
ACS108-6S
Figure 2.
Maximum power dissipation
Figure 3.
On-state rms current versus tab
versus on-state rms current
(full cycle)
temperature (full cycle)
IT(RMS)(A)
1.00
P(W)
0.9
180°
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
IT(RMS)(A)
TC(°C)
0.00
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
25
50
75
100
125
Figure 4.
On-state rms current versus
ambient temperature
(free air convection)
Figure 5.
Relative variation of thermal
impedance junction to ambient
versus pulse duration
K = [Zth(j-a)/Rth(j-a)
]
IT(RMS)(A)
1.0
1.E+00
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1.E-01
tp(s)
Ta(°C)
1.E-02
1.E-03
0.0
0
25
50
75
100
125
1.E-02
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
Figure 6.
Relative variation of, holding and
latching current versus junction
temperature
Figure 7.
Releative variation of I and V
versus junction temperature
GT
GT
IGT, VGT[Tj] / IGT, VGT[Tj = 25 °C]
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
IH, IL[Tj] / IH, IL[Tj = 25 °C]
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
IGT
VGT
IH
IL
Tj(°C)
Tj(°C)
10 20 30 40 50 60 70 80 90 100 110 120 130
-40 -30 -20 -10
0
10 20 30 40 50 60 70 80 90 100 110 120 130
-40 -30 -20 -10
0
4/12
Doc ID 11962 Rev 4
ACS108-6S
Figure 8.
Characteristics
Non repetitive surge peak on-state Figure 9.
current versus number of cycles
Non repetitive surge peak on-state
current for a sinusoidal pulse, and
corresponding value of I²t
ITSM(A)
10
ITSM(A), I2t (A2s)
100.0
10.0
1.0
9
8
Tj initial = 25 °C
ITSM
t = 20 ms
One cycle
Non repetitive
Tj initial = 25 °C
7
6
5
4
3
2
1
0
pulse with width tp<10 ms, and corresponding value of I²t
Repetitive
Tc = 75 °C
I²t
tp(ms)
Number of cycles
1000
0.1
0.01
0.10
1.00
10.00
1
10
100
Figure 10. On-state characteristics (maximal Figure 11. Relative variation of critical rate of
values)
decrease of main current versus
junction temperature
(dl / dt) [Tj] / (dl / dt) [Tj = 125 °C]
ITM(A)
c
c
10.00
1.00
0.10
0.01
8
7
6
5
4
3
2
1
0
Tjmax:
Vto = 0.9 V
Rd = 300 mΩ
Tj = 125 °C
Tj = 25 °C
Tj(°C)
125
VTM(V)
25
50
75
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Figure 12. Relative variation of static dV/dt
immunity versus junction
temperature
Figure 13. Relative variation of the maximal
clamping voltage versus junction
temperature (min. value)
dV / dt [Tj] / dV / dt [Tj = 125 °C]
8
VCL[Tj/VCL[Tj = 25°C]
1.15
7
6
5
4
3
2
1
1.10
1.05
1.00
0.95
0.90
Tj(°C)
125
Tj(°C)
0
0.85
-30
25
50
75
100
-10
10
30
50
70
90
110
130
Doc ID 11962 Rev 4
5/12
Characteristics
ACS108-6S
Figure 14. Relative variation of critical rate
ofdecrease of main current (di/dt)c
versus (dV/dt)c
Figure 15. Thermal resistance junction to
ambient versus copper surface
under tab
t)
(dI/dt)c [ (dV/dt)c ] / Specified (dI/d
c
R
th(j-a)
(°C/W)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
170
160
150
140
130
120
110
100
90
V
= 400 V
OUT
turn-off time < 20 ms
Epoxy printed circuit board FR4,
copper thickness 35 µm
80
70
60
50
(dV/dt)c (V/µs)
S(cm²)
0.1
1
10
100
0
1
2
3
4
5
6/12
Doc ID 11962 Rev 4
ACS108-6S
Alternating current line switch - basic application
2
Alternating current 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 16.
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 16. Typical application program
Valve
AC Mains
V
ss
MCU
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 V . This feature
CL
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 I .
H
As shown in Figure 17 and Figure 18, at the end of the last conduction half-cycle, the load
current decreases (1). The load current reaches the holding current level I (2), and the
H
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 V . The energy stored in the inductance
CL
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).
Doc ID 11962 Rev 4
7/12
Alternating current line switch - basic application
ACS108-6S
Figure 17. Effect of the switching off of a high Figure 18. 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
VCL
I H
2
5
100µs/div
2.1.2
Alternating current 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 19 is representative of the final ACS108-6S application, and
is also used to test the ac 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 20. 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 19. Overvoltage ruggedness test Figure 20. Typical current and voltage
circuit for resistive and
inductive
waveforms across the
ACS108-6S
during IEC 61000-4-5 standard test
loads with conditions equivalent to
IEC 61000-4-5 standards
VPEAK
I OUT
Surge generator
"1.2/50 waveform"
Model of the load
(2 A/div)
VOUT
(200 V/div)
Rgene
L
R
150
5µH
2
ACS108-6Sx
2.4 kV surge
Rg
220
200ns/div
8/12
Doc ID 11962 Rev 4
ACS108-6S
Ordering information scheme
3
Ordering information scheme
Figure 21. Ordering information scheme
ACS
1
08 - 6 S UF -TR
AC switch series
Number of switches
Current
08 = 0.8 A rms
Voltage
6 = 600 V
Sensitivity
S = 10 mA
Package
UF = SMBflat-3L
Packing
TR = 13”, 5000 pieces
Doc ID 11962 Rev 4
9/12
Package information
ACS108-6S
4
Package information
■
■
Epoxy meets UL94, V0
Lead-free packages
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.
SMBflat-3L dimensions
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
Ref.
A
b
0.90
0.35
1.10 0.035
0.65 0.014
2.20 0.07
0.40 0.006
3.95 0.130
5.60 0.201
4.60 0.156
1.50 0.030
0.043
0.026
0.087
0.016
0.156
0.220
0.181
0.059
A
c
e
D
b 2x
b4 1.95
L2 2x
L1
L1
L2
L 2x
c
D
E
0.15
3.30
5.10
E
E1
L
E1 4.05
b4
L
L1
L2
e
0.75
0.40
0.60
1.60
0.016
0.024
0.063
Figure 22. SMBflat-3L footprint dimensions
5.84
(0.230)
0.51
(0.020)
2.07
(0.082)
2.07
(0.082)
0.51
(0.020)
1.20
3.44
1.20
(0.047)
(0.136)
(0.047)
millimeters
(inches)
10/12
Doc ID 11962 Rev 4
ACS108-6S
Ordering information
5
Ordering information
Table 7.
Ordering information
Order code
Marking
Package
Weight
Base Qty Delivery mode
ACS108-6SUF-TR
ACS1086S
SMBflat-3L
46.91 mg
5000
Tape and reel
6
Revision history
04
Table 8.
Date
Document revision history
Revision
Changes
05-Jan-2005
07-Jun-2006
1
2
Initial release.
Reformatted to current standard. Replaced Figure 9.
Added Epoxy meets UL94, V0 in Package information. Updated
ECOPACK statement. Added SMBflat-3L package. Updated
graphics.
14-Dec-2010
12-Jun-2012
3
4
Information regarding TO-92 and SOT-223 packages transferred to
STMicroelectronics datasheet ACS108.
Doc ID 11962 Rev 4
11/12
ACS108-6S
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Doc ID 11962 Rev 4
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