Datasheet > ACS1086SN-TR

ACS1086SN-TR

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		开关
页数	文件大小	规格书
11页	131K
描述
AC switch family Transient voltage protected AC Switch (ACSTM)

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ACS1086SN-TR 数据手册

2 AC line switch - basic application

ACS108-6S

AC line switch - basic application

The ACS108-6S switch is triggered by a negative gate current flowing from the gate pin G. The

switch can be driven directly by the digital controller through a resistor as shown in Figure 13.

Thanks to its overvoltage protection and turn-off commutation performance, the ACS108-6S

switch can drive a small power high inductive load with neither varistor nor additional turn-off

snubber.

Figure 13. Typical application program

Valve

AC Mains

MCU

ACS108-6S

Power supply

2.1

Protection against overvoltage: the best choice is ACS

In comparison with standard triacs, which are not robust against surge voltage, the ACS108-6S

is over-voltage self-protected, specified by the new parameter V_CL. This feature is useful in two

operating conditions: in case of turn-off of very inductive load, and in case of surge voltage that

can occur on the electrical network.

2.1.1 High inductive load switch-off: turn-off overvoltage clamping

With high inductive and low RMS current loads the rate of decrease of the current is very low.

An overvoltage can occur when the gate current is removed and the OUT current is lower than

I_H.

As shown in Figure 14 and Figure 15, at the end of the last conduction half-cycle, the load

current decreases (1). The load current reaches the holding current level I_H(2), and the ACS

turns off (3). The water valve, as an inductive load (up to 15 H), reacts as a current generator

and an overvoltage is created, which is clamped by the ACS (4). The current flows through the

ACS avalanche 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 is

dissipated in the clamping section that is designed for this purpose. When the energy has been

dissipated, the ACS voltage falls back to the mains voltage value (5).

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型号	品牌	描述	获取价格	数据表
ACS108-6SUF-TR	STMICROELECTRONICS	Overvoltage protected AC switch (ACSâ¢)	获取价格
ACS108-8SA	STMICROELECTRONICS	过压保护交流开关	获取价格
ACS108-8SN	STMICROELECTRONICS	过压保护交流开关	获取价格
ACS108-8TN	STMICROELECTRONICS	过压保护交流开关（ACS?）	获取价格
ACS109D	INTERSIL	Radiation Hardened Dual J-K Flip-Flop with Set and Reset	获取价格
ACS109D/SAMPLE-03	RENESAS	AC SERIES, DUAL POSITIVE EDGE TRIGGERED J-K FLIP-FLOP, COMPLEMENTARY OUTPUT, CDIP16, SIDE	获取价格