ACS108-6SUF-TR STMICROELECTRONICS | Alldatasheet
Document overview
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Technical content
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 ■ Common package tab connection supports connection of several alternating current switches (ACS) on the same cooling pad ■ Integrated structure based on A.S.D.® technology ■ Overvoltage protection by crowbar technology ■ High noise immunity - static dV/dt > 500 V/µs
Applications
■ Alternating current on/off static switching in appliances and industrial control systems ■ Drive of low power high inductive or resistive loads like: – relay, valve, solenoid, – dispenser, door lock – pump, fan, low power motor
Description
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. Figure 1. Functional diagram Table 1. Device summary OUT Output to connect to the load.
1 Characteristics
Table 2. Absolute maximum ratings (T amb = 25 °C, unless otherwise specified)
- according to test descri bed by IEC 61000-4-5 standard and Figure 19
Table 3. Electrical characteristics (T j = 25 °C, unless otherwise specified)
- Minimum I GT is guaranteed at 10% of IGT max
- For both polarities of OUT referenced to COM
Table 4. Static electrical characteristics
- For both polarities of OUT referenced to COM
Table 5. Thermal resistance
2 Alternating current line switch - basic application
The ACS108-6S switch is triggered by a negative gate current flowing from the gate pin G. Figure 16. Typical application program
2.1 Protection against overvoltage: the best choice is ACS
surge voltage that can occur on the electrical network.
2.1.1 High inductive load switch-off: turn-off overvoltage clamping
energy has been dissipated, the ACS voltage falls back to the mains voltage value (5).
2.1.2 Alternating current li ne transient voltage ruggedness
is also used to test the ac switch according to the IEC 61000-4-5 standard conditions. next zero crossing of the current). Such non-repetitive tests can be done 10 times on each ac line voltage polarity. Figure 17. Effect of the switching off of a high Figure 18. Description of the different steps Figure 19. Overvoltage ruggedness test Figure 20. Typical current and voltage
3 Ordering information scheme
Figure 21. Ordering information scheme
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.
Figure 22. SMBflat-3L footprint dimensions Table 6. SMBflat-3L dimensions
5 Ordering information
6 Revision history
Table 7. Ordering information Table 8. Document revision history 05-Jan-2005 1 Initial release. 07-Jun-2006 2 Reformatted to current standard. Replaced Figure 9. STMicroelectronics datasheet ACS108.