STMICROELECTRONICS ACS110-7SB2

®
ACS110-7SN/SB2
ASD™
AC Switch Family
AC LINE SWITCH
MAIN APPLICATIONS
AC static switching in appliance control systems
Drive of low power high inductive or resistive
loads like
- relay, valve, solenoid, dispenser
- pump, fan, micro-motor
- defrost heater
■
COM
■
OUT
COM
G
SOT-223
ACS110-7SN
FEATURES
■
■
■
■
■
■
Blocking voltage : VDRM / VRRM = +/-700V
Avalanche controlled : VCL typ = 1100 V
Nominal conducting current : IT(RMS) = 1A
Gate triggering current : IGT < 10 mA
Switch integrated driver
High noise immunity : static dV/dt >500V/µs
BENEFITS
No external protection snubber or varistor
needed
Enables equipment to meet IEC 61000-4-5 &
IEC 335-1 (DIL-8 package)
Reduces component count up to 80 %
Interfaces directly with the microcontroller
Eliminates any gate kick back on the
microcontroller
Allows straightforward connection of several
ACS™ on same cooling pad (SOT-223)
G
OUT
COM
COM
COM
COM
■
DIL-8
ACS110-7SB2
■
■
■
■
FUNCTIONAL DIAGRAM
■
DESCRIPTION
The ACS110 belongs to the AC line switch family
built around the ASD™ concept. This high performance switch circuit is able to control a load up to 1
A.
The ACS™ switch embeds a high voltage clamping structure to absorb the inductive turn off 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.
OUT
S
ON
D
COM
April 2003 - Ed: 2A
G
1/10
ACS110-7SN/SB2
ABSOLUTE RATINGS (limiting values)
For either positive or negative polarity of pin OUT voltage in respect to pin COM voltage
Symbol
VDRM / VRRM
Parameter
Repetitive peak off-state voltage
IT(RMS)
RMS on-state current full cycle sine wave
50 to 60 Hz
ITSM
Non repetitive surge peak on-state current
Tj initial = 25°C, full cycle sine wave
2
It
dI/dt
Value
Tj = -10 °C
700
V
SOT-223
Ttab = 105 °C
1
A
DIL-8
Tlead = 110 °C
F =50 Hz
8
A
F =60 Hz
11
A
tp = 10ms
0.35
A²s
F = 120 Hz
50
A/µs
Fusing capability
Repetitive on-state current critical rate of
rise IG = 10mA (tr < 100ns)
Unit
Tj = 125°C
note 1
VPP
Non repetitive line peak pulse voltage
2
kV
Tstg
Storage temperature range
- 40 to + 150
°C
Tj
Operating junction temperature range
- 30 to + 125
°C
Tl
Maximum lead soldering temperature during 10s
260
°C
Value
Unit
0.1
W
Note 1: according to test described by IEC61000-4-5 standard & Figure 3.
GATE CHARACTERISTICS (maximum values)
Symbol
PG (AV)
Parameter
Average gate power dissipation
IGM
Peak gate current (tp = 20µs)
1
A
VGM
Peak positive gate voltage (in respect to pin COM)
5
V
Value
Unit
THERMAL RESISTANCES
Symbol
Rth (j-a)
Rth (j-l)
Parameter
Junction to ambient S = 5cm²
Junction to tab/lead for full cycle sine wave conduction
S = Copper surface under Tab
2/10
SOT-223
60
°C/W
DIL-8
60
°C/W
SOT-223
20
°C/W
DIL-8
15
°C/W
ACS110-7SN/SB2
PARAMETER DESCRIPTION
Parameter Symbol
Parameter description
IGT
Triggering gate current
VGT
Triggering gate voltage
VGD
Non-triggering gate voltage
IH
Holding current
IL
Latching current
VTM
Peak on-state voltage drop
VTO
On state threshold voltage
Rd
On state dynamic resistance
IDRM / IRRM
Maximum forward or reverse leakage current
dV/dt
Critical rate of rise of off-state voltage
(dV/dt)c
Critical rate of rise of commutating off-state voltage
(dI/dt)c
Critical rate of decrease of commutating on-state current
VCL
Clamping voltage
ICL
Clamping current
ELECTRICAL CHARACTERISTICS
For either positive or negative polarity of pin OUT voltage respect to pin COM voltage excepted note 3*.
Symbol
Test Conditions
Values
Unit
IGT
VOUT=12V (DC)
RL=140Ω
QII - QIII
Tj=25°C
MAX
10
mA
VGT
VOUT=12V (DC)
RL=140Ω
QII - QIII
Tj=25°C
MAX
1
V
VGD
VOUT=VDRM RL=3.3kΩ
Tj=125°C
MIN
0.15
V
IH
IOUT= 100mA gate open
Tj=25°C
MAX
45
mA
IL
IG= 20mA
Tj=25°C
MAX
65
mA
Tj=25°C
MAX
1.3
V
VTO
Tj=125°C
MAX
0.8
V
Rd
Tj=125°C
MAX
300
mΩ
µA
VTM
IOUT = 1.4A
tp=380µs
IDRM /
IRRM
VOUT = 700V
dV/dt
(dI/dt)c
VCL
Tj=25°C
MAX
2
Tj=125°C
MAX
200
VOUT=460V gate open
Tj=110°C
MIN
500
V/µs
(dV/dt)c = 20V/µs
Tj=125°C
MIN
0.5
A/ms
ICL = 1mA
Tj=25°C
TYP
1100
V
tp=1ms
3/10
ACS110-7SN/SB2
AC LINE SWITCH BASIC APPLICATION
The ACS110 device is well adapted to Washing machine, dishwasher, tumble drier, refrigerator, water
heaters,air-conditioning systems, microwave ovens and other cookware. It has been designed especially
to switch on & off low power loads such as solenoid, valve, relay, dispenser, micro-motor, pump, fan and
defrost heaters.
Pin COM: Common drive reference to connect to the power line neutral
Pin G: Switch Gate input to connect to the digital controller
Pin OUT: Switch Output to connect to the load
This ACS™ switch is triggered with a negative gate current flowing out of the gate pin G. It can be driven directly by the digital controller through a resistor as shown on the typical application diagram.
Several ACS110 devices can be connected on the same cooling PCB pad, which is the COM pin.
Thanks to its thermal and turn off commutation performances, the ACS110 switch is able to drive with no
turn off additional snubber an inductive load up to 1 A.
TYPICAL APPLICATION DIAGRAM
LOAD
L
L
AC
MAINS
M
R
N
OUT
ACS110
S
ON
D
COM
G
ST72 MCU
- Vcc
HIGH INDUCTIVE SWITCH-OFF OPERATION
At the end of the last conduction half-cycle, the load current reaches the holding current level IH , and the
ACS™ switch turns off. Because of the inductance L of the load, the current flows then through the avalanche diode D 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 depends on the holding current IH and the inductance (up
to 10 H); it can reach about 10 mJ and is dissipated in the clamping diode section. The ACS switch sustains
the turn off energy because its clamping section is designed for that purpose.
4/10
ACS110-7SN/SB2
Fig. A: Turn-off operation of the ACS110 switch
with an electro-valve: waveform of the pin OUT
current IOUT and Out-COM voltage VOUT.
Fig. B: ACS110 switch static characteristic.
IOUT
IH
VCL
VOUT
AC LINE TRANSIENT VOLTAGE RUGGEDNESS
The ACS110 switch is able to sustain safely the AC line transient voltages 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 of the figure C is representative of the final ACS application and is also used to stress the
ACS switch according to the IEC 61000-4-5 standard conditions. Thanks to the load, the ACS switch sustains the voltage spikes up to 2 kV above the peak line voltage. It will break over safely even on resistive
load where the turn on current rise is high as shown on figure D. Such non repetitive test can be done 10
times on each AC line voltage polarity.
Fig. C: Overvoltage ruggedness test circuit
for resistive and inductive loads according to
IEC61000-4-5 standards.
R = 150Ω, L = 10µH, VPP = 2kV.
R
Fig. D: Current and Voltage of the ACS110 during IEC61000-4-5 standard test with R = 150Ω,
L = 10µH & VPP = 2kV.
L
OUT
ACSxx
S
SURGE VOLTAGE
AC LINE & GENERATOR
VAC + V PP
ON
D
G
COM
RG = 220Ω
5/10
ACS110-7SN/SB2
OTHER FIGURES
Maximum power dissipation vs RMS on state current.
RMS on-state current vs ambient temperature, case temperature and package
Relative variation of thermal impedance junction to ambient vs pulse duration and package
Relative variation of gate trigger current vs junction temperature
Relative variation of holding and latching current vs junction
Relative variation of dV/dt vs Tj
Relative variation of (dV/dt)c vs (di/dt)c
Surge peak on-state current vs number of cycles
Non repetitive surge peak on-state current for a sinusoidal pulse with tp<10ms, and corresponding of I²t.
On-state characteristics (maximal values)
Thermal resistance junction to ambient vs copper surface under tab
Relative variation of critical (di/dt)c vs junction temperature
Fig. 1: Maximum power dissipation versus RMS
on-state current.
Fig. 2-1: RMS on-state current versus tab or lead
temperature.
P(W)
IT(RMS)(A)
1.1
1.1
α=180°
1.0
α=180°
1.0
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
0.5
0.5
0.4
0.4
SOT-223
-
DIL-8
0.3
0.3
180°
0.2
α
0.1
α
0.2
0.1
IT(RMS)(A)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Ttab/Tlead(°C)
0.0
0.0
0.7
0.8
0.9
1.0
Fig. 2-2: RMS on-state current versus ambient
temperature.
0
25
50
75
100
125
Fig. 3: Relative variation of thermal impedance
junction to ambient versus pulse duration.
IT(RMS)(A)
K=[Zth(j-a)/Rth(j-a)]
1.1
1.E+00
α=180°
Printed circuit board FR4
Natural convection
S=5cm²
1.0
0.9
0.8
0.7
0.6
1.E-01
0.5
0.4
0.3
0.2
0.1
Tamb(°C)
tp(s)
0.0
0
25
50
75
100
125
1.E-02
1.E-03
6/10
1.E-02
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
ACS110-7SN/SB2
Fig. 4: Relative variation of gate trigger current,
holding current and latching versus junction
temperature (typical values).
Fig. 5: Relative variation of static dV/dt versus
junction temperature.
dV/dt [Tj] / dV/dt [Tj = 125°C]
IGT, IH, IL[Tj] / IGT, IH, IL [Tj = 25°C]
4.0
8
3.5
7
VOUT=460V
6
3.0
IGT
2.5
5
2.0
4
3
1.5
IL & IH
2
1.0
1
0.5
Tj(°C)
Tj(°C)
0
0.0
-40 -30 -20 -10
0
10
20
30
40
50
60
70
80
90 100 110 120 130
Fig. 6: Relative variation of critical rate of decrease of main current versus reapplied dV/dt
(typical values).
(dI/dt)c [(dV/dt)c] / Specified (dI/dt)c
5.0
25
VOUT=400V
75
100
(dI/dt)c [Tj] / (dI/dt)c [Tj = 125°C]
VOUT=400V
18
4.0
16
3.5
14
3.0
12
2.5
10
2.0
8
1.5
6
1.0
125
Fig. 7: Relative variation of critical rate of decrease
of main current versus junction temperature.
20
4.5
50
4
0.5
(dV/dt)c (V/µs)
2
0.0
Tj(°C)
0
0
5
10
15
20
25
30
35
40
45
50
Fig. 8: Surge peak on-state current versus number
of cycles.
25
50
75
100
125
Fig. 9: Non repetitive surge peak on-state current
for a sinusoidal pulse with width tp < 10ms, and
corresponding value of I²t.
ITSM(A), I²t (A²s)
ITSM(A)
100.0
10
Tj initial=25°C
9
t=20ms
8
ITSM
Non repetitive
Tj initial=25°C
7
10.0
6
5
4
Repetitive
Tab=105°C
3
1.0
I²t
2
1
tp(ms)
Number of cycles
0
0.1
1
10
100
1000
0.01
0.10
1.00
10.00
7/10
ACS110-7SN/SB2
Fig. 10:
values).
On-state
characteristics
Fig. 11: Thermal resistance junction to ambient
versus copper surface under tab (printed circuit
board FR4, copper thickness: 35µm)
(maximum
Rth(j-a)(°C/W)
ITM(A)
130
10.00
SOT-223
120
Tj max. :
Vto=0.8V
Rd=300mΩ
110
100
90
1.00
80
Tj=125°C
70
60
50
Tj=25°C
0.10
40
30
20
VTM(V)
S(cm²)
10
0
0.01
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0.0
4.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
ORDERING INFORMATION
ACS
1
10
-
7
S
AC Switch
VDRM
7 = 700V
Number of switches
IT(RMS)
10 = 1.0A
8/10
X
Package
N = SOT-223
B2 = DIL-8
Gate Sensitivity
S= 10mA
4.0
4.5
5.0
ACS110-7SN/SB2
PACKAGE OUTLINE MECHANICAL DATA
SOT-223
REF.
c
A
V
A1
B
e1
D
PIN
B1
4
DESCRIPTION
1
GATE
BASE
2
DRAIN
COLLECTOR
3
SOURCE EMITTER
4
DRAIN
H E
1
2
3
e
COLLECTOR
A
A1
B
B1
c
D
e
e1
E
H
V
DIMENSIONS
Millimeters
Inches
Min. Typ. Max. Min. Typ.
1.80
0.02
0.10 0.001
0.60 0.70 0.85 0.024 0.027
2.90 3.00 3.15 0.114 0.118
0.24 0.26 0.35 0.009 0.010
6.30 6.50 6.70 0.248 0.256
2.3
0.090
4.6
0.181
3.30 3.50 3.70 0.130 0.138
6.70 7.00 7.30 0.264 0.276
10° max
Max.
0.071
0.004
0.033
0.124
0.014
0.264
0.146
0.287
PACKAGE FOOT PRINT
SOT-223
Recommended soldering pattern SOT-223
9/10
ACS110-7SN/SB2
PACKAGE OUTLINE MECHANICAL DATA
DIL-8
DIMENSIONS
REF.
Millimetres
Min.
L
c
b2
e
eA
eB
E
D
8
Typ. Max.
5.33
0.21
A
A1
b
Typ. Max. Min.
A
A2
Inches
H
5
A1
0.38
0.015
A2
2.92
3.30
4.95 0.115 0.130 0.195
b
0.36
0.46
0.56 0.014 0.018 0.022
b2
1.14
1.52
1.78 0.045 0.060 0.070
c
0.20
0.25
0.36 0.008 0.010 0.014
D
9.02
9.27 10.16 0.355 0.365 0.40
E
7.62
7.87
8.26
E1
6.10
6.35
7.11 0.240 0.25 0.280
0.30 0.310 0.325
GAUGE PLANE 0.38
E1
1
4
e
2.54
0.10
eA
7.62
0.30
eB
L
10.92
2.92
3.30
0.430
3.81 0.115 0.130 0.15
OTHER INFORMATION
■
Ordering type
Marking
Package
Weight
Base qty
Delivery mode
ACS110-7SN
ACS1107S
SOT-223
0.12 g
1000
Tape & reel
ACS110-7SB2
ACS1107S
DIL8
0.6 g
50
Tube
Epoxy meets UL94,V0
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use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
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© 2003 STMicroelectronics - Printed in Italy - All rights reserved.
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