ACST310-8B STMICROELECTRONICS | Alldatasheet

Document overview

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Technical content

Features

  • AC switch with self over voltage protection
  • Microcontroller direct driven (low gate current max. 10 mA)
  • Three quadrants (Q1, Q2 and Q3)
  • UL94-V0 qualified resin (flammability)
  • ECOPACK®2 compliant component Benefits
  • Enables equipment to meet IEC61000-4-5
  • High immunity against fast transients described in IEC61000-4-4 standard
  • Needs no external overvoltage protection
  • High off-state reliability power device
  • Interfaces directly with the microcontroller
  • Reduces component count

Applications

  • AC static switching in appliances and industrial control systems
  • Driving low power highly inductive loads or resistive AC loads, such as motor control circuits, small home appliances, lighting, fan speed controllers, water valves, pumps, solid state relays, vacuum cleaners, heaters

Description

The ACST310-8B belongs to the ACS™ / ACST power switch family built with A.S.D. ® (application specific discrete) technology. This high performance device is suited to home appliances or industrial systems and drives loads up to 3 A. This ACST310-8B switch embeds a Triac structure and a high voltage clamping device able to absorb the inductive turn-off energy and withstand line transients such as those described in the IEC 61000-4-5 standard.The component needs a low gate current to be activated (I GT max. 10 mA) and still shows a high electrical noise immunity complying with IEC standards such as IEC 61000-4-4 (fast transient burst test). Figure 1. Functional diagram ACS™, is a trademark of STMicroelectronics. Table 1. Device summary

1 Characteristics

Table 2. Absolute ratings (limiting values)

  1. according to test described by standard IEC 61000-4-5 standard (see Figure 16).

Table 3. Electrical characteristics

  1. Minimum I GT is guaranteed at 5% of IGT max.
  2. For both polarities of OUT pin referenced to COM pin

2 Application information

2.1 Typical application description

through a resistor as shown on the typical application diagram ( Figure 15). Figure 15. AC induction motor control - typical diagram

Figure 16. Phase angle control typical diagram (inductive or resistive load)

2.2 AC line transient voltage ruggedness

the load. This safety feature works even with high turn-on current ramp up. crowbar technology. The ACST310 folds back safely to the on state as shown in Figure 18. Figure 17. Overvoltage ruggedness test circuit for resistive and inductive loads for

Figure 18. Typical voltage and current waveforms across the ACST310-8B

2.3 Electrical noise immunity

a simple resistor by a logic level circuit, and still provides a high electrical noise immunity.

3 Package information

  • Epoxy meets UL94-V0
  • Lead-free package
  • Halogen free molding compound 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.

3.1 DPAK package information

Figure 19. DPAK package outline

Figure 20. DPAK package outline Table 6. DPAK package mechanical data

4 Ordering information

Figure 21. Ordering information scheme

5 Revision history

Table 7. Ordering information ACST 3108 DPAK 0.32 g per pc.

75 Tube

Table 8. Document revision history