ACS108-5SN

ACS108-5SX STMICROELECTRONICS | Alldatasheet

Document overview

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Technical content

June 2005 REV. 2 ASD and ACS are a trademarks of STMicroelectronics. ASD™ AC Switch Family AC LINE SWITCH MAIN APPLICATIONS ■ AC on-off static switching in appliance & indus- trial control systems ■ Drive of low power high inductive or resistive loads like - relay, valve, solenoid, dispenser - pump, fan, micro-motor - defrost heater

FEATURES

■ Blocking voltage: VDRM / VRRM = 500V ■ Clamping voltage: VCL = 600V ■ Nominal current: IT(RMS) = 0.8 A ■ Gate triggering current : IGT < 10mA ■ Triggering current is sourced by the gate ■ Switch integrated driver ■ Drive reference COM connected to the SOT-223 tab BENEFITS ■ Needs no external overvoltage protection. ■ Enables the equipment to meet IEC61000-4-5 standard. ■ Allows straightforward connection of several SOT-223 devices on the same cooling pad. ■ Reduces the switch component count by up to 80%. ■ Interfaces directly with the microcontroller. ■ Eliminates any stressing gate kick back on the microcontroller.

DESCRIPTION

The ACS108 belongs to the AC line switches built around the ASD™ concept. This high performance device is able to control an 0.8 A load device. 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. For further technical information, please refer to GCOM OUT ON S D ACS108 FUNCTIONAL DIAGRAM OUT COMG TO-92 ACS108-5SA OUT COM COM G SOT-223 ACS108-5SN

2/8 ® ABSOLUTE RATINGS (limiting values) Note 1: according to test described by IEC61000-4-5 standard & Figure 3. SWITCH GATE CHARACTERISTICS (maximum values) THERMAL RESISTANCES (*) : with 5 cm2 copper (e=35µm) surface under tab

ELECTRICAL CHARACTERISTICS

For either positive or negative polarity of pin OUT voltage respect to pin COM voltage excepted note 3 Symbol Parameter Value Unit VDRM/ VRRM Repetitive peak off-state voltage Tj = 125 °C 500 V IT(RMS) RMS on-state current full cycle sine wave 50 to 60 Hz TO-92 Tlead = 75 °C 0.8 A TO-92 Tamb = 60 °C 0.3 A SOT-223 Tamb = 75 °C 0.8 A ITMS Non repetitive surge peak on-state current Tj initial = 25°C, full cycle sine wave F = 50 Hz 7.3 A F = 60 Hz 8 A dI/dt Critical rate of repetitive rise of on-state current IG = 20mA with tr = 100ns F = 120 Hz 100 A/µs VPP Non repetitive line peak pulse voltage note 1 2 kV Tstg Storage temperature range - 40 to + 150 °C Tj Operating junction temperature range - 30 to + 125 °C Tl Maximum lead temperature for soldering during 10s 260 °C Symbol Parameter Value Unit PG(AV) Average gate power dissipation 0.1 W IGM Peak gate current (tp = 20µs) 1 A VGM Peak positive gate voltage (respect to the pin COM) 5 V Symbol Parameter Value Unit Rth (j-a) Junction to ambient TO-92 150 °C/W SOT-223 (*) 60 °C/W Rth (j-l) Junction to lead for full AC line cycle conduction TO-92 60 °C/W Rth (j-t) Junction to tab for full AC line cycle conduction SOT-223 25 °C/W Symbol Test conditions Values Unit IGT VOUT = 12V R L = 140Ω Tj = 25°C MAX. 10 mA VGT VOUT = 12V R L = 140Ω 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 TYP . 25 mA MAX. 60 mA IL IG = 20mA Tj = 25°C TYP . 30 mA MAX. 65 mA VTM IOUT = 1.1A tp = 500 µs Tj = 25°C MAX. 1.3 V IDRM / IRRM VOUT = VDRM VOUT = VRRM Tj = 25°C MAX. 2 µA Tj = 125°C MAX. 200 µA dV/dt V OUT = 400V gate open Tj = 110°C MIN. 500 V/µs (dI/dt)c (dV/dt)c = 10V/ µs Tj = 110°C MIN. 0.1 A/ms (dI/dt)c* (dV/dt)c = 15V/ µsIOUT < 0 (note 3) Tj = 110°C MIN. 0.3 A/ms VCL ICL = 1mA tp = 1ms Tj = 25°C TYP . 600 V

3/8® AC LINE SWITCH BASIC APPLICATION The ACS108 device is well adapted to washing machines, dishwashers, tumble driers, refrigerators, water heaters and cookware. It has been especially designed to switch ON and OFF low power loads such as solenoids, valves, relays, dispensers, micro-motors, fans, pumps, door locks and low power lamp 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 the 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 protec- tion devices are required between the gates and common terminals. The SOT-223 version allows several ACS108 devices to be connected on the same cooling PCB pad which is the COM pin : this cooling pad can be then reduced, and the printed circuit layout is simplified. In appliance systems, the ACS108 switch intends to drive low power load in full cycle ON/OFF mode. The turn off commutation characteristics of these loads can be classified in 3 groups as shown in Table 1. Thanks to its thermal and turn-off commutation characteristics, the ACS108 switch drives a load, such as door lock, lamp, relay, valve and micro motor, up to 0.2 A without any turn-off aid circuit. Switching off the ACS within one full AC line cycle will extend its current up to 0.8 A on resistive load. Table 1: Load grouping versus their turn off commutation requirement (230V AC applications). TYPICAL APPLICATION DIAGRAM LOAD Load IRMS current POWER FACTOR (dI/dt)c (dV/dt)c TURN-OFF DELAY (A) (A/ms) (V/µs) (ms) Door lock, lamp < 0.3 1 0.15 0.15 < 10 < 0.8 1 0.4 0.15 < 20 Relay Valve Dispenser Micro-motor Pump Fan < 0.2 > 0.2 < 0.1 < 10 < 10 AC MAINS L N ST 72 MCU LOAD -V c c L R GCOM OUT ACS108 ON S D

4/8 ® 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 through the avalanche diode D and decreases linearly to zero. During this time, the voltage across the switch is limited to the clamping voltage V CL. 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 section that is especially designed for that purpose. AC LINE TRANSIENT VOLTAGE RUGGEDNESS The ACS108 switch is able to safely withstand the AC line transient voltages either by clamping the low energy spikes or by breaking over under high energy shocks. The test circuit in Figure 4 is representative of the final ACS™ application and is also used to stress the ACS™ switch according to the IEC61000-4-5 standard conditions. Thanks to the load, the ACS™ switch withstands the voltage spikes up to 2 kV above the peak line voltage. It will break over safely even on resis- tive load where the turn-on current rise is high as shown in Figure 4. Such non-repetitive testing can be done 10 times on each AC line voltage polarity. Fig. 1: Turn-off operation of the ACS108 switch with an electro valve: waveform of the gate current IG, pin OUT current I OUT & voltage VOUT. Fig. 2: ACS108 switch static characteristic. Time (400µs/div) IOUT (10 mA/div) VOUT (200V/div) IH VCL = 650V IH VCL IOUT VOUT Fig. 3: Overvoltage ruggedness test circuit for resis- tive and inductive loads according to IEC61000-4-5 standard. R = 150Ω, L = 5µH, V PP = 2kV. Fig. 4: Current and voltage of the ACS™ during IEC61000-4-5 standard test with a 150 Ω - 10 µH load & VPP = 2kV. Iout (2 A/div) V out (200 V/div) dI/dt = 100 A/µs RL RG= 220Ω VAC +V PP AC LINE & SURGE VOLTAGE GENERATOR GCOM OUT ACSxx ON S D

5/8® Fig. 5: Maximum power dissipation versus RMS on-state current. Fig. 6: RMS on-state current versus ambient temperature. 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 IT(RMS)(A) P(W) 0 10 20 30 40 50 60 70 80 90 100 110 120 130 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Tamb(°C) IT(RMS)(A) ACS108-5SA (TO92, Tamb=Tlead) ACS108-5SN with 5cm² copper surface under tab ACS108-5SA (TO92) Fig. 7-1: Relative variation of thermal impedance junction to ambient versus pulse duration (ACS108-5SA) (TO-92). Fig. 7-2: Relative variation of thermal impedance junction to ambient versus pulse duration (ACS108-5SN) (SOT-223). 1E-3 1E-2 1E-1 1E+0 1E+1 1E+2 5E+20.01 0.10 1.00 tp(s) Zth(j-a) / Rth(j-a) 1E-3 1E-2 1E-1 1E+0 1E+1 1E+2 5E+20.01 0.10 1.00 tp(s) Zth(j-a) / Rth(j-a) Fig. 8: Relative variation of gate trigger current versus junction temperature. Fig. 9: Relative variation of holding and latch- ing current versus junction temperature. -40 -20 0 20 40 60 80 100 120 140 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Tj(°C) IGT [Tj] / IGT [Tj=25°C] -40 -20 0 20 40 60 80 100 120 140 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Tj(°C) IH,IL [Tj] / IH,IL [Tj=25°C]

6/8 ® Fig. 10: Non repetitive surge peak on-state current versus number of cycles. Fig. 11: Non-repetitive surge peak on-state cur- rent for a sinusoidal pulse with width tp < 10ms, and corresponding value of I 2t. 1 10 100 10000 Number of cycles ITSM(A) Tj initial=25°C Non repetitive Tamb=25°C Repetitive One cycle t=20ms 1.0 10.0 100.0 tp(ms) ITSM(A),I²t(A²s) Tj initial=25°C ITSM I²t Fig. 12: On-state characteristics (maximum values). Fig. 13: Thermal resistance junction to ambient versus copper surface under tab (Epoxy printed circuit board FR4, copper thickness: 35 µm). 0.10 1.00 5.00 VTM(V) ITM(A) Tj max.: Vto = 0.9 V Rd = 300 mΩ 100 110 120 130 S(Cu) (cm²) Rth(j-a) (°C/W) Fig. 14: Relative variation of critical (dl/dt)c versus junction temperature. 0 10 20 30 40 50 60 70 80 90 100 110 1200.0 0.5 1.0 1.5 2.0 2.5 3.0 Tj(°C) (dI/dt)c [Tj] / (dI/dt)c [Tj=110°C]

7/8®

ORDERING INFORMATION

I 08 = 0.8A TRMS Gate Sensitivity S = 10mA A = TO-92 N = SOT -223 V 5 = 500V DRM -TR = SOT -223 Tape & Reel A B D H E e c V 2 3 DESCRIPTIONPIN GATE DRAIN SOURCE DRAIN BASE COLLECTOR COLLECTOR EMITTER REF. DIMENSIONS Millimeters Inches A 1.80 0.071 A1 0.02 0.10 0.001 0.004 e 2.3 0.090 e1 4.6 0.181 V 10° max Recommended soldering pattern SOT -223

8/8 ® PACKAGE MECHANICAL DATA TO-92 (Plastic) OTHER INFORMATION

REVISION HISTORY

Ordering type Marking Package Weight Base qty Delivery mode ACS108-5SA ACS108/5S TO-92 0.2 g 2500 Bulk ACS108-5SA-TR ACS108/5S TO-92 0.2 g 2000 Tape & reel ACS108-5SN ACS1/085S SOT -223 0.12 g 1000 Tape & reel Date Revision Description of Changes Apr-2004 1 First Issue 21-Jun-2005 2 Marking information updated from ACSxxxx to ACS1xxx DF a E B A C REF. DIMENSIONS Millimeters Inches A 1.35 0.053 B 4.70 0.185 C 2.54 0.100 D 4.40 0.173 E 12.70 0.500 F 3.70 0.146 a 0.45 0.017 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 publicati on are subject to change without notice. This publication supersedes and replac es all information previously supplied. STMicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectro nics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners © 2005 STMicroelectronics - All rights reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Ital y - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States