Overvoltage protected AC switch

Document overview

  • Manufacturer or author: STMICROELECTRONICS
  • PDF pages: 14

Technical content

Features

 Triac with overvoltage crowbar protection  Low IGT (< 10 mA) or high immunity (IGT < 35 mA) version  High noise immunity: static dV/dt > 2000 V/µs  Provides UL certified insulation rated at

2000 VRMS

 Enables equipment to meet IEC 61000-4-5  High off-state reliability with planar technology  Need no external overvoltage protection  Reduces the power passive component count  High immunity against fast transients described in IEC 61000-4-4 standards

Applications

 AC mains static switching in appliance and industrial control systems  Drive of medium power AC loads such as: – Universal motor of washing machine drum – Compressor for fridge or air conditioner

Description

The ACST10 series 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 10 A. This ACST10 switch has a Triac structure and a high voltage clamping device to absorb the inductive turn-off energy and withstand transients such as those described in the IEC 61000-4-5 standard. The ACST1010-7 needs a low gate current to be activated (I GT < 10 mA) and still shows a high noise immunity complying with IEC 61000-4-4 standard. The ACST1035-7 offers a high static dV/dt immunity of 2 kV/µs minimum. Figure 1. Functional diagram Table 1. Device summary

1 Characteristics

Table 2. Absolute ratings (limiting values)

  1. According to test described in IEC 61000-4-5 standard and Figure 17

Table 3. Electrical characteristics

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

2 Application information

2.1 Typical appli cation description

through a simple gate resistor as shown Figure 15. Figure 15. Compressor control – typical diagram

Figure 16. Universal drum motor control – typical diagram

2.2 AC line transien t voltage ruggedness

even with high turn-on current ramp up.

3 Package information

specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark.

3.1 TO-220AB package information

Figure 19. TO-220AB package outline

  1. Resin gate position accepted in one of the two positions or in the symmetrical opposites.

Table 6. TO-220AB package mechanical data

  1. Values in inches are converted from mm and rounded to 4 decimal digits.

3.2 TO-220FPAB package information

Figure 20. TO-220FPAB package outline

Table 7. TO-220FPAB package mechanical data

  1. Values in inches are converted from mm and rounded to 4 decimal digits.

4 Ordering information

Figure 21. Ordering information scheme

5 Revision history

Table 8. Ordering information Table 9. Document revision history other datasheets in this product class. 01-Jul-2010 3 Updated order code in Table 3. Updated Features in cover page and Table 2. Updated Figure 8, Figure 11, Figure 18, Figure 14 and Figure 10. Updated Chapter 3: Package information.