ACS108-5SN [STMICROELECTRONICS]

AC LINE SWITCH; AC线路开关


型号：	ACS108-5SN
厂家：	ST
描述：	AC LINE SWITCH AC线路开关触发装置开关三端双向交流开关光电二极管驱动
文件：	总7页 (文件大小：84K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

ACS108-5Sx

ASD

AC Switch Family

AC LINE SWITCH

MAIN APPLICATIONS

AC Line switch for appliance control systems

Drive of low power high inductive or resistive

loads like:

- solenoid, relay, valve, dispenser

- micro-motor

- door lock

- low power lamp bulb

- pump

- fan

OUT

COM

FEATURES

TO92

ACS108-5SA

V_DRM/ V_RRM= 500V

Avalanche controlled device

I_T(RMS)= 0.8 A

Gate triggering current : I_GT< 10 mA

Switch integrated driver

DrivereferenceCOMconnectedtotheSOT223tab

COM

OUT

COM

BENEFITS

Needs no more external protection snubber &

varistor.

SOT223

ACS108-5SN

Enables the equipment to meet IEC1000-4-5

standard.

Allows straightforward connection of several

SOT223 devices on the same cooling pad.

Reduces the switch component count by up to

80%.

Interfaces directly with the microcontroller.

FUNCTIONAL DIAGRAM

Eliminates any stressing gate kick back on the

microcontroller.

OUT

DESCRIPTION

ACS108

The ACS108 belongs to the AC line switches built

around the ASD concept. This high performance

full planar technology device is able to control an

0.8 A load.

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.

Note: For further technical information, please re-

fer to the Application note AN1172.

COM

November 1999 - Ed: 3B

1/7

ACS108-5Sx

ABSOLUTE RATINGS (limiting values)

Symbol

Parameter

Repetitive peak off-state voltage

Value

Unit

V_DRM

V_RRM

Tj = 25 °C

500

I_T(RMS)

RMS on-state current full cycle sine

wave 50 to 60 Hz

TO92

Tlead = 60 °C

Tamb = 60 °C

Tamb = 55 °C

F =50 Hz

0.8

0.3

0.8

7.3

SOT223

I_TSM

Non repetitive surge peak on-state current

Tj initial = 25 C, full cycle sine wave

F =60 Hz

dI/dt

Critical rate of rise of on-state current

I_G= 20mA with tr = 100ns

Repetitive

F =120 Hz

A/µs

note 1

V_PP

Tstg

Non repetitive line peak pulse voltage

Storage temperature range

°C

- 40 to + 150

0 to + 110

260

Operating junction temperature range

Maximum lead temperature for soldering during 10s

note 1 : according to test described by IEC 1000-4-5 standard & Figure 3.

SWITCH GATE CHARACTERISTICS (maximum values)

Symbol

P_{G (AV)}

I_GM

Parameter

Average gate power dissipation

Value

Unit

0.1

Peak gate current (tp = 20_µs)

V_GM

Peak positive gate voltage (respect to the pin COM)

THERMAL RESISTANCES

Symbol

Parameter

Value

150

Unit

°C/W

Rth (j-a)

Junction to ambient

TO92

SOT223 (*)

TO92

Rth (j-l)

Rth (j-t)

Junction to lead for full AC line cycle conduction

Junction to tab for full AC line cycle conduction

SOT223

(*) : with 5cm copper (e=35µm) surface under tab

ELECTRICAL CHARACTERISTICS

For either positive or negative polarity of pin OUT voltage respect to pin COM voltage

Symbol

I_GT

Test Conditions

V_OUT=12V (DC) R_L=140Ω

Values

Unit

Tj=25°C

Tj=110°C

Tj=25°C

MAX

MIN

V_GT

V_GD

I_H

V_OUT=12V (DC) R_L=140Ω

V_OUT=V_DRMR_L=3.3kΩ

0.2

I_OUT= 100mA gate open

TYP

MAX

TYP

MAX

MIN

I_L

I_G= 20mA

Tj=25°C

V_TM

IOUT = 1.1A tp=380µs

Tj=25°C

Tj=110°C

Tj=25°C

1.3

I_DRM

I_RRM

V_OUT= V_DRM

V_OUT= V_RRM

µA

V/µs

A/ms

dV/dt

(dI/dt)c

V_CL

V_OUT=400V gate open

(dV_OUT/dt)c=10V/µs

ICL = 1mA tp=1ms

500

0.1

600

MIN

TYP

2/7

ACS108-5Sx

AC LINE SWITCH BASIC APPLICATION

The ACS108 device is well adapted to washing machine, dishwasher, tumble drier, refrigerator, water

heater and cookware. It has been designed especially to switch ON and OFF low power loads such as so-

lenoid, valve, relay, micro-motor, fan, pump, door lock and low wattage lamp bulb.

Pin COM:

Pin G:

Common drive reference to connect to the power line neutral

Switch Gate input to connect to the digital controller

Switch Output to connect to the Load

Pin OUT:

The ACS switch is triggered with a negative gate current flowing out of the gate pin G. It can be driven di-

rectly by the digital controller through a resistor as shown on the typical application diagram. Note that no

protection device (zener or capacitor) should be added between gates and common terminals.

The SOT223 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 appliances systems, the ACS108 switch intends to drive low power load in full cycle ON / OFF mode.

When the gate signal is removed, the load is switched off after a delay time that is equal to one half line cy-

cle or one full line cycle depending on the load drive strategy.

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 performances, the ACS108 switch is able to drive with no

additional turn off snubber, a resistive or inductive load up to 0.2 A (when this load has to switch off within

one half AC line cycle), an inductive load up to 0.6 A or a resistive load up to 0.8 A (when this load has to

switch off within one full AC line cycle).

Table 1: Load grouping versus their turn off commutation requirement (230V AC applications).

IRMS

(dI/dt)c

(dV/dt)c

TURN-FF

DELAY

POWER

LOAD

FACTOR

(A)

(A/ms)

0.15

(V/µs)

0.15

< 5

(ms)

<10

Door Lock Lamp

< 0.3

< 0.8

< 0.1

0.4

< 20

< 10

Relay Valve

Dispenser

Micro-motor

> 0.7

< 0.05

Pump Fan

< 0.2

< 0.6

> 0.2

< 0.1

< 0.3

< 10

< 20

TYPICAL APPLICATION DIAGRAM

LOAD

MAINS

OUT

ACS108

COM

ST 72 MCU

- Vcc

3/7

ACS108-5Sx

INDUCTIVE SWITCH-OFF OPERATION

At the end of the last conduction half-cycle, the load current reaches the holding current level I_H, 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 I_Hand 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.

Fig 2: ACS108 switch static characteristic.

Fig 1: Turn-off operation of the ACS108 switch

with an electro valve: waveform of the gate current

I_G, pin OUT current I_OUT& voltage V_OUT

IOUT

(10 mA/div)

VCL = 650V

I^H

VOUT

VCL

V^OUT

(200V/div)

Time (400µs/div)

AC LINE TRANSIENT VOLTAGE RUGGEDNESS

The ACS108 switch is able to sustain safely the AC line transient voltages either by clamping the low en-

ergy spikes or by breaking over under high energy shocks, even with high turn-on current rises.

The test circuit of the figure 4 is representative of the final ACS application and is also used to stress the

ACS switch according to the IEC1000-4-5 standard conditions. Thanks to the load, the ACS switch

sustains the voltage spikes up to 2 kV above the peak line voltage. It will break over safely even on resistive

load where the turn on current rise is high as shown on figure 4. Such non repetitive test can be done 10

times on each AC line voltage polarity.

Fig 3: Overvoltage ruggedness test circuit for

resistive and inductive loads according to IEC

1000-4-5 standard.

Fig 4: Current and voltage of the ACS during

IEC 1000-4-5 standard test with a 220Ω - 10µH

load & V_PP= 2kV.

R = 150Ω, L = 5µH, V_PP= 2kV.

Vout (200 V/div)

Iout (2 A/div)

OUT

AC LINE

ACSxx

dI/dt = 100 A/µs

SURGEVOLTAGE

GENERATOR

AC + VPP

COM

RG= 220Ω

4/7

ACS108-5Sx

Fig 6: Relative variation of holding & latching

currents versus junction temperature

Fig 5: Relative variation of gate trigger current

versus junction temperature

IH[Tj]/IH[Tj=25°C] & IL[Tj]/IL[Tj=25°C]

IGT[Tj]/IGT[Tj=25°C]

2.0

2.00

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

1.75

1.50

1.25

1.00

0.75

0.50

0.25

0.2

0.0

Tj(°C)

0.00

100

125

100

125

Fig 7: On state characteristics @Tj max

Fig 8: Maximum RMS switch current versus

ambient temperature on inductive load (PF>0.1)

and a low repetitive rate (F < 1 Hz)

V_TO= 0.90 V & R_T= 0.3 Ω (maximum values)

Pon = V_TO.2. 2 . I _{T (RMS )}Π + R_Tx I _{T( RMS )}

(*): with 5cm²copper (e=35µm) surface under tab

IOUT (A)

IT(RMS) (A)

0.8

0.6

0.5

0.8

SOT223(*)

0.4

0.3

0.6

TO92

0.2

0.4

0.1

0.2

VTM (V)

Tamb (°C)

0.07

0.05

10 20 30 40 50 60 70 80 90 100 110 120

0.5

0.75

1.25

1.5

1.75

Fig 9-1: Relative variation of the junction to

ambient thermal impedance versus conducting

pulse duration for the SOT223

Fig 9-2: Relative variation of the junction to

ambient thermal impedance versus conducting

pulse duration for the TO92.

Standard foot print with 35µm copper layout

thickness.

Zth(j-a)/Rth(j-a)

1.00

0.10

tp (s)

0.01

1E-3

1E-2

1E-1

1E+0

1E+1

1E+2 5E+2

1E-3

1E-2

1E-1

1E+0

1E+1

1E+2 5E+2

5/7

ACS108-5Sx

Fig. 10: SOT223 thermal resistance junction to

ambient versus copper surface under tab (Epoxy

printed circuit board FR4, copper thickness: 35µm)

Rth(j-a) (°C/W)

130

120

110

100

S(Cu) (cm)

ORDERING INFORMATION

ACS^TM

08 -

Number

Switch

V_DRM

5 = 500V

A = TO92

N = SOT223

AC Switch

Gate

I_TRMS

Sensitivity

S = 10mA

08 = 0.8A

PACKAGE MECHANICAL DATA

SOT223

DIMENSIONS

Millimeters

Min. Typ. Max. Min. Typ. Max.

1.80 0.071

REF.

Inches

0.02

0.70

3.00

0.26

6.50

2.3

0.001

0.60

2.90

0.24

6.30

0.80 0.024 0.027 0.031

3.10 0.114 0.118 0.122

0.32 0.009 0.010 0.013

6.70 0.248 0.256 0.264

0.090

4.6

0.181

3.30

6.70

3.50

7.00

3.70 0.130 0.138 0.146

7.30 0.264 0.276 0.287

10° max

6/7

ACS108-5Sx

PACKAGE MECHANICAL DATA

SOT223

PACKAGE MECHANICAL DATA

TO92 Plastic

DIMENSIONS

Millimeters

REF.

Inches

Typ. Max.

0.053

Min. Typ. Max. Min.

1.35

4.70

2.54

0.185

0.100

4.40

0.173

0.500

12.70

3.70

0.45

0.146

0.017

Ordering type

ACS108-5SA

ACS108-5SN

Marking

ACS08/5S

ACS/085S

Package

TO92

Weight

Base qty

2500

Delivery mode

Bulk

0.2g

SOT223

0.123g

1000

Tape & reel

TM: ASD and ACS are trademarks of STMicroelectronics .

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of

use of such informationnor for any infringement of patents or other rightsof 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 publication are subject to

change without notice. This publication supersedes and replaces all information previously supplied.

STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written ap-

proval of STMicroelectronics.

The ST logo is a registered trademark of STMicroelectronics

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7/7

ACS108-5SN [STMICROELECTRONICS]

相关型号：

ACS108-5SN-TR

ACS108-5SX

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ACS108-6SN-AP

ACS108-6SN-TR

ACS108-6SUF-TR

ACS108-6S_0606

ACS108/5S