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(R)
ACS102-5Tx
AC LINE SWITCH
PRELIMINARY DATASHEET
ASDTM AC Switch Family
MAIN APPLICATIONS n AC on-off static switching in appliance control systems n Drive of low power high inductive or resistive loads like - relay, valve, solenoid, dispenser - pump, fan, micro-motor - low power lamp bulb, door lock
OUT G COM
FEATURES
n n n n n n
Blocking voltage : VDRM / VRRM = 500V Clamping voltage : VCL = 600 V Nominal current : IT(RMS) = 0.2 A Gate triggering current : IGT < 5 mA Switch integrated driver SO-8 package: - drive reference COM connected to 2 cooling pins - 3 mm creepage distance from pin OUT to other pins
TO92 ACS102-5TA
NC COM COM G NC OUT NC NC
BENEFITS
n
n
n n n
n
Needs no more external protection snubber or varistor Enables equipment to meet IEC 1000-4-5 & IEC 335-1 Reduces component count by up to 80 % Interfaces directly with a microcontroller Eliminates any stressing gate kick back on microcontroller Allows straightforward connection of several ACS on same cooling pad
SO-8 ACS102-5T1
NC: Not Connected
FUNCTIONAL DIAGRAM
OUT
ACS102
DESCRIPTION The ACS102 belongs to the AC line switch family built around the ASD concept. This high performance 5 mA switch circuit is able to control an up to 0.3 A load. 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.
S
ON
D
COM
December 1999 - Ed: 4B
G
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ACS102-5Tx
ABSOLUTE RATINGS (limiting values)
Symbol VDRM / VRRM IT(RMS) ITSM dI/dt VPP Tstg Tj Tl Parameter Repetitive peak off-state voltage RMS on-state current full cycle sine wave 50 to 60 Hz Non repetitive surge peak on-state current Tj initial = 25C, full cycle sine wave Critical rate of rise of on-state current IG = 10mA, tr = 100ns Non repetitive line peak pulse voltage Storage temperature range Operating junction temperature range Maximum lead temperature for soldering during 10s TO92 SO-8 Tj = 25 C Tamb = 75 C Tamb = 75 C F =50 Hz F =60 Hz F =120 Hz note 1 Value 500 0.2 0.2 7.3 8 20 2 - 40 to + 150 0 to + 110 260 Unit V A A A A A/s kV C C C
note 1 : according to test described by IEC 1000-4-5 standard & Figure 4.
SWITCH GATE CHARACTERISTICS (maximum values)
Symbol PG (AV) IGM VGM Peak gate current (tp = 20s) Peak positive gate voltage (respect to the pin COM) Parameter Average gate power dissipation Value 0.1 1 5 Unit W A V
THERMAL RESISTANCES
Symbol Rth (j-a) Rth (j-l) Junction to ambient Junction to leads for full AC line cycle conduction Parameter TO92 SO-8 TO92 Value 150 150 60 Unit C/W C/W C/W
ELECTRICAL CHARACTERISTICS For either positive or negative polarity of pin OUT voltage respect to pin COM voltage
Symbol IGT VGT VGD IH IL VTM IDRM IRRM dV/dt (dI/dt)c VOUT=12V VOUT=12V Test Conditions (DC) RL=140 (DC) RL=140 Tj=25C Tj=25C Tj=110C Tj=25C MAX MAX MIN TYP MAX IG= 20mA IOUT = 0.3A VOUT = VDRM VOUT = VRRM VOUT=400V gate open Turn off = 10ms, (dV/dt)c = 5V/s Turn off = 20ms, (dV/dt)c = 10V/s VCL ICL = 1mA tp=1ms Tj=25C TYP tp=380s Tj=25C TYP MAX Tj=25C Tj=25C Tj=110C Tj=110C Tj=110C MAX MAX MAX MIN MIN Values 5 0.9 0.2 20 tbd 25 tbd 1.2 2 50 300 0.1 0.15 600 V V/s A/ms V A mA Unit mA V V mA
VOUT=VDRM RL=3.3k IOUT= 100mA gate open
tbd = to be defined
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ACS102-5Tx
PARAMETER DESCRIPTION Parameter Symbol
IGT VGT VGD IH IL VTM IDRM / IRRM dV/dt (dl/dt)C VCL
Parameter Description
Gate triggering current Gate triggering voltage Non triggering voltage Holding current Latching current On state voltage Forward or reverse leakage current Static pin OUT voltage rise Turn off current rate of decay Clamping voltage
AC LINE SWITCH BASIC APPLICATION The ACS102 device is well adapted to washing machine, dish washer, tumble drier, refrigerator, water heaters, and cookware. It has been designed especially to switch on & off low power loads such as solenoid, valve, relay, dispenser, micro-motor, pump, fan, door lock, and low wattage lamps bulbs. Pin COM : Common drive reference to connect to the power line neutral Pin G : Switch Gate input to connect to the digital controller through a resistor 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. No protection device (zener or capacitor) are required between gate and COM terminals. The SO-8 version allows to connect several ACS102 devices on the same cooling PCB pad which is the COM pin. In appliances systems, the ACS102 switch intends to drive low power load in full cycle ON / OFF mode. The turn off commutation characteristics of these loads are described in table 1. Thanks to its thermal and turn off commutation performances, the ACS102 switch is able to drive with no turn off aid snubber a load up to 0.2 A (door lock, lamp, relay, valve & micro motor) when this load has to switch off within one half AC line cycle, and up to 0.3 A (pump, fan) when this load can switch off within one full AC line cycle. Table 1: Low power load turn off commutation requirement (230V AC applications).
IRMS LOAD (A) Door lock, lamp Relay Valve Dispenser Micro-motor Pump Fan < 0.2 < 0.2 1 > 0.7 POWER FACTOR (A/ms) < 0.1 < 0.1 (V/s) < 0.15 <5 (dI/dt)c (dV/dt)c TURN-OFF DELAY (ms) < 10 < 10
< 0.3
> 0.2
< 0.15
< 10
< 20
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ACS102-5Tx
TYPICAL APPLICATION DIAGRAM
L
LOAD
AC MAINS
N
L R
OUT
S
ON
ACS102
D
COM
G
ST 72 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 ACSTM switch turns off. Because of the inductance L of the load, the current flows 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 20 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.
Fig 1: Turn-off operation of the ACS102 switch with an electro valve: waveform of the gate current IG, pin OUT current IOUT & voltage VOUT.
IOUT (10 mA/div)
Fig 2: ACS102 switch static characteristic.
IOUT
VCL = 650V
IH
IH VOUT
VOUT (200V/div)
VCL
Time
(400s/div)
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ACS102-5Tx
AC LINE TRANSIENT VOLTAGE RUGGEDNESS The ACS102 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 rates of increase. The test circuit of the figure 3 is representative of the final ACS application and is also used to stress the ACS switch according to the IEC1000-4-5 standard conditions. Thanks to the load, the ACS switch sustains the voltage spikes up to 2 kV above the peak line voltage. It will breaks over safely even on resistive load where the turn on current rate of increase is high as shown on figure 4. Such non repetitive test can be done 10 times on each AC line voltage polarity.
Fig. 3: Overvoltage ruggedness test circuit for resistive and inductive loads according to IEC 1000-4-5 standard. R = 150, L = 5H, VPP = 2kV.
Fig. 4: Current and Voltage of the ACS during IEC 1000-4-5 standard test with R = 150, L = 5H & VPP = 2kV.
R
L
Vout (200 V/div)
OUT
Iout (2.5 A/div)
AC LINE & SURGE VOLTAGE GENERATOR
S
ACSxx
ON
VAC + VPP
D
COM
G
dI/dt = 70 A/s
RG= 220
Fig 5: Relative variation of gate trigger current versus junction temperature
Fig 6: Relative variation of holding & latching currents versus junction temperature
IGT[Tj]/IGT[Tj=25C] 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 0 25 50
2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4
IH[Tj]/IH[Tj=25C] & IL[Tj]/IL[Tj=25C]
Tj(C)
75 100 125
0.2 0.0 0 25 50
Tj(C)
75 100 125
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ACS102-5Tx
Fig 7: Typical on state characteristics @ Tj max VTO = 0.85 V & RT = 0.40 (maximum values) Pon = V TO . 2. 2 . I T ( RMS ) + RT x I T ( RMS ) 2 Fig 8: Maximum RMS switch current versus ambient temperature on inductive load (PF>0.1) and a low repetitive rate (F < 0.1 Hz) for both TO92 and SO8.
Iout_m (A)
2 1 0.8 0.6 0.5 0.4 0.3 0.2
IT(RMS) (A) 0.4
Full cycle turn off delay Half cycle turn-off delay
0.3
0.2
0.1
0.1 0.07 0.05 0.75
Tamb (C)
Von (V) 1 1.25 1.5
0 0 10 20 30 40 50 60 70 80 90 100 110 120
Fig. 9-1: Relative variation of the junction to ambient thermal impedance versus conducting pulse duration for the SO8. Standard foot print with 35m copper layout thickness.
Zth (j-a) / Rth (j-a)
1
Fig. 9-2: Relative variation of the junction to ambient thermal impedance versus conducting pulse duration for the TO92.
Zth (j-a) / Rth (j-a)
1
0.1
0.1
tp (s)
0.01 0.001 0.01 0.1 1 10 100
0.01 0.001 0.01 0.1
tp (s)
1 10 100
ORDERING INFORMATION
ACS
1
02
-
5
T
X
AC Switch
Number of Switch
ITRMS 02 = 0.2 A
VDRM 5 = 500V
Gate sensistivity T = 5 mA
A = TO 92 1 = SO-8
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ACS102-5Tx
PACKAGE OUTLINE MECHANICAL DATA SO-8
DIMENSIONS
L c1 C a3 a2 A b1
REF.
Millimetres Min. Typ. Max. 1.75 0.1 0.25 1.65 0.65 0.35 0.19 0.25 0.50 0.85 0.48 0.25 0.50 0.025 0.014 0.007 0.010 0.004 Min.
Inches Typ. Max. 0.069 0.010 0.065 0.033 0.019 0.010 0.020
A
S
E a1
b e3
e
a1 a2
D M
a3 b
8
5 F
b1 C c1 D E e e3 F L M S
1
4
45 (typ) 4.8 5.8 1.27 3.81 3.8 0.4 4.0 1.27 0.6 8 (max) 0.15 0.016 5.0 6.2 0.189 0.228 0.050 0.150 0.157 0.050 0.024 0.197 0.244
PACKAGE FOOT PRINT SO-8
6.8 0.6 4.2
1.27
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ACS102-5Tx
PACKAGE OUTLINE MECHANICAL DATA TO92 Plastic
DIMENSIONS
A a B C
REF. A B C D
Millimeters Min. Typ. 1.35 4.70 2.54 4.40 12.70 3.70 0.45 0.173 0.500 Max. Min.
Inches Typ. 0.053 0.185 0.100 Max.
F
D
E
E F a
0.146 0.017
Ordering type ACS102-5TA ACS102-5TA-TR ACS102-5T1-TR
Marking ACS102 ACS102 ACS102
Package TO92 TO92 SO-8
Weight 0.2g 0.2g 0.11g
Base qty 2500 2000 2500
Delivery mode Bulk Tape & reel Tape & reel
TM: ASD and ACS are trademarks of STMicroelectronics .
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of 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. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics (c) 1999 STMicroelectronics - Printed in Italy - All rights reserved. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com
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