Intersil Corporation CA3059 Datasheet

Oct 1999

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CA3059, CA3079

s

t

/

m

o

Zero-Voltage Switches for 50Hz-60Hz and

400Hz Thyristor Control Applications

Features

•Relay Control

• Valve Control

• Synchronous Switching of Flashing Lights

• On-Off Motor Switching

• Differential Comparator with Self-Contained Power
Supply for Industrial Applications

• Photosensitive Control

• Power One-Shot Control

• Heater Control

• Lamp Control

Type Features

• 24V, 120V, 208/230V, 277V at 50/60 . . .
or 400Hz Operation

• Differential Input . . . . . . . . . . . . . . . . . . X X

• Low Balance Input Current (Max) - µA. . . 1 2

• Built-In Protection Circuit for . . . . . . . .

Opened or Shorted Sensor (Term 14)

• Sensor Range (Rx) - kΩ. . . . . . . . . . . . . 2 - 100 2 - 50

• DC Mode (Term 12) . . . . . . . . . . . . . . . . X

• External Trigger (Term 6) . . . . . . . . . . . X

• External Inhibit (Term 1) . . . . . . . . . . . . X

• DC Supply Volts (Max) . . . . . . . . . . . . . 14 10

• Operating Temperature Range (

o

CA3059 CA3079

XX

XX

C) . . . -55 to +125

Description

The CA3059 and CA3079 zero-voltage switches are mono­lithic silicon integrated circuits designed to control a thyristor
in a variety of AC power switching applications for AC input
voltages of 24V, 120V, 208/230V, and 277V at 50Hz-60Hz
and 400Hz. Each of the zero-voltage switches incorporates
4 functional blocks (see the Functional Block Diagram) as
follows:

1. Limiter-Power Supply - Permits operation directly from an
AC line.

2. Differential On/Off Sensing Amplifier - Tests the condition
of external sensors or command signals. Hysteresis or
proportional-control capability may easily be implement­ed in this section.

3. Zero-Crossing Detector - Synchronizes the output pulses
of the circuit at the time when the AC cycle is at zero volt­age point; thereby eliminating radio-frequency interfer­ence (RFI) when used with resistive loads.

4. Triac Gating Circuit - Provides high-current pulses to the
gate of the power controlling thyristor.

In addition, the CA3059 provides the following important
auxiliary functions (see the Functional Block Diagram).

1. A built-in protection circuit that may be actuated to remove
drive from the triac if the sensor opens or shorts.

2. Thyristor firing may be inhibited through the action of an
internal diode gate connected to Terminal 1.

3. High-power dc comparator operation is provided by over-

Ordering Information

PART NUMBER TEMPERATURE PACKAGE

CA3059 -55

CA3079 -55

o

C to +125oC 14 Lead Plastic DIP

o

C to +125oC 14 Lead Plastic DIP

riding the action of the zero-crossing detector. This is ac­complished by connecting Terminal 12 to Terminal 7.
Gate current to the thyristor is continuous when Terminal
13 is positive with respect to Terminal 9.

The CA3059 and CA3079 are supplied in 14 lead dual-in­line plastic packages.

Pinouts

CA3059 (PDIP)

TOP VIEW

INHIBIT

DC SUPPLY

HIGH CURRENT

NEG. TRIGGER

TRIGGER OUT

TRIGG ER IN

COMMON

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSI L or 32 1-724-7143
Copyright © Intersil Americas Inc. 2002. All Rights Reserve d

1

2

3

4

AC IN

5

6

7

| Intersil (and design) is a trademark of Intersil Americas Inc.

14

FAIL-SAFE

13

SENSE AMP IN

12

ZCD OVERRIDE

R DRIVER (COM)

11

10

R DRIVER V

9

SENSE AMP REF

8

COMMON

+

3

DO NOT USE

DC SUPPLY

HIGH CURRENT

NEG. TRIGGER

TRIGGER OUT

AC IN

DO NOT USE

COMMON

CA3079 (PDIP)

TOP VIEW

1

2

3

4

5

6

7

DO NOT USE

14

13

SENSE AMP IN

DO NOT USE

12

R DRIVER (COM)

11

10

R DRIVER V

9

SENSE AMP REF

8

COMMON

+

FN490.5

Functional Block Diagram

R

S

IC

AC INPUT
VOLTAGE

R

14

P

+

100µF

15V

-

* NTC SENSOR

* NEGATIVE TEMPERATURE COEFFICIENT

13

R

X

5

2

1

8

7

LIMITER

EXTERNAL

INHIBIT

CA3059, CA3079

12

IC

POWER
SUPPLY

“0”
CROSSING
DET.

PROTECTION

CIRCUIT

ON/OFF
SENSING
AMPL.

9 10 11

INHIBIT

TRIAC
GATING
CIRCUIT

R

L

CURRENT

BOOST

3

MT

2

4

6

IC

MT

G

1

AC INPUT VOLTAGE (50/60 OR 400Hz)

V AC

INPUT SERIES RESISTOR (R

kΩ

24 2 0.5

120 10 2

208/230 20 4

277 25 5

NOTE: Circuitry within shaded areas, not included in CA3079

See chart
IC = Internal connection - DO NOT USE (Terminal restriction applies only to CA3079)

12

IC

R
5K

1

AC

R

S

5

LINE
INPUT

D

7D13

D

D

D

2

1

3

D

4

FAIL-SAFE INPUT

All resistance values are in Ω
NOTE: Circuitry within shaded areas

FOR DC MODE
OR 400Hz
OPERATION

D

6

D

5

R
40K

COMMON

R
27K

Q

1

10

100µF

15V

2

D

D

12

8

C

F

D

15

TO

COMMON

R

P

R

SENSOR

2

D

9

Q

10

Q

R

7

10K

6

13

D

10

not included in CA3079

IC = Internal connection - DO NOT USE (Terminal restriction applies only to

)

S

Q

2

Q

COMMON

INHIBIT

INPUT

COMMON

R
12K

Q

5

4

8

TO

D

11

1714

IC

DISSIPATION RATING FOR R

W

R

R

9.6K

4

10K

10

9

11

5

Q

7

EXTERNAL

TRIGG ER

6

FOR

R
15K

ICIC

6

Q

8

3

Q

3

R

8

15

R

9

25

Q

9

S

3

FOR
INCREASED
GATE DRIVE

4

TO
THYRISTOR
GATE

FIGURE 1. SCHEMATIC DIAGRAM OF CA3059 AND CA3079

4

Specifications CA3059, CA3079

Absolute Maximum Ratings T

DC Supply Voltage (Between Terminals 2 & 7)

CA3059 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V

CA3079 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V

DC Supply Voltage (Between Terminals 2 & 8)

CA3059 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V

CA3079 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V

Peak Supply Current (Terminals 5 & 7) . . . . . . . . . . . . . . . . . . .±50mA

Output Pulse Current (Terminal 4) . . . . . . . . . . . . . . . . . . . . . 150mA

= +25oC Thermal Information

A

Thermal Resistance θ

PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100oC/W

Power Dissipation

Up to T
Above T

Ambient Temperature

= +55oC CA3059, CA3079 . . . . . . . . . . . . . . . . . 950mW

A

= +55oC CA3059, CA3079 . .Derate Linearly 10mW/oC

A

Operating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65

Lead Temperature (During Soldering) . . . . . . . . . . . . . . . . . +265

JA

o

C to +125oC

o

C to +150oC

o

At distance 1/16” ± 1/32” (1.59 ± 0.79) from case
for 10 seconds max

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the ope rational sections of this specification is not implied.

Electrical Specifications T

= +25oC, For all Types, Unless Otherwise Specified. All voltages are measured with respect to

A

Terminal 7. For Operating at 120V

, 50-60Hz (AC Line Voltage) (Note 1)

RMS

PARAMETERS SYMBOL TEST CONDITIONS MIN TYP MAX UNITS

DC SUPPLY VOLTAGE (Figure 2A, 2B, 2C)

Inhibit Mode At 50/60Hz V

At 400Hz R

At 50/60Hz R

Pulse Mode At 50/60Hz V

At 400Hz R

At 50/60Hz R

Gate Trigger Current (Figures 3, 4A) I

Terminal 4

GT

RS = 8kΩ, IL = 0 6.1 6.5 7 V

S

= 10kΩ, IL = 0 - 6.8 - V

S

= 5kΩ, IL = 0 - 6.4 - V

S

RS = 8kΩ, IL = 0 6 6.4 7 V

S

= 10kΩ, IL = 0 - 6.7 - V

S

= 5kΩ, IL = 0 - 6.3 - V

S

Terminals 3 and 2 Connected,

-105-mA

VGT = 1V

PEAK OUTPUT CURRENT (PULSED) (Figures 4, 5)

With Internal Power Supply
Figure 4a, 4b

Terminal 4

With External Power Supply
Figure 5a, 5b, 5c

Terminal 4

Inhibit Input Ratio (Figure 6) V

I

OM

I

OM

9/V2

Terminal 3 open, Gate Trigger
Voltage (VGT) = 0

Terminals 3 and 2 Connected, Gate
Trigger Voltage (V

Terminal 3 open, V+ = 12V, V

GT

) = 0

= 0 - 170 - mA

GT

Terminals 3 and 2 Connected,
V+ = 12V, V

GT

= 0

Voltage Ratio of Terminals 9 to 2 0.465 0.485 0.520 -

50 84 - mA

90 124 - mA

240 - mA

TOTAL GATE PULSE DURATION (Note 2) (Figure 7A, 7B, 7C, 7D)

C

For Positive dv/dt 50-60Hz t

400Hz C

For Negative dv/dt 50-60Hz t

400Hz C

P

N

= 0 70 100 140 µs

EXT

= 0, R

EXT

C

= 0 70 100 140 µs

EXT

= 0, R

EXT

= ∞ -12-µs

EXT

= ∞ -10-µs

EXT

PULSE DURATION AFTER ZERO CROSSING (50-60Hz) (Figure 7A)

For Positive dv/dt t

For Negative dv/dt t

P1

N1

EXT

= 0, R

= ∞ -50-µs

EXT

-60-µs

C

OUTPUT LEAKAGE CURRENT (Figure 8)

Inhibit Mode I

4

- 0.001 10 µA

INPUT BIAS CURRENT (Figure 9)

CA3059 I

I

- 220 1000 nA

CA3079 - 220 2000 nA

Common-mode Input Voltage Range V

CMR

Terminals 9 and 13 Connected - 1.5 to 5-V

C

5

Specifications CA3059, CA3079

Electrical Specifications T

= +25oC, For all Types, Unless Otherwise Specified. All voltages are measured with respect to

A

Terminal 7. For Operating at 120V

, 50-60Hz (AC Line Voltage) (Note 1) (Continued)

RMS

PARAMETERS SYMBOL TEST CONDITIONS MIN TYP MAX UNITS

SENSITIVITY (Note 3) (Figures 4(a), 11)

Pulse Mode ∆V

Terminal 12 open - 6 - mV

13

NOTES:

1. The values given in the Electrical Characteristics Chart at 120V also apply for operation at input voltages of 208/230V, and 277V, except
for Pulse Duration. However, the series resistor (R
for the specified input voltage.

) must have the indicated value, shown in the chart in the Functional Block Diagram,

S

2. Pulse Duration in 50Hz applications is approximately 15% longer than shown in Figure 7(b).

3. Required voltage change at Terminal 13 to either turn OFF the triac when ON or turn ON the triac when OFF.

Maximum Voltage Ratings T

= +25oC

A

MAXIMUM
CURRENT

TERM.

NO.

1

Note 3

2

3

NOTE 3

1234

Note 4 Note 4 Note 4 Note 4 15

0

-150-152-140-140Note 5

0

MAXIMUM VOLTAGE RATINGS T

NOTE 15NOTE 3

67891011

= +25oC

A

NOTE 3

12 13

NOTES

2, 3

10-2Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 10 0.1

0

-14

0

Note 5

-14

0

-140-140-14

Note 4 0

-140-14

Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4

14

RATINGS

I

IN

mA

150 10

-15

4

Note 4 2

Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 0.1 150

-10

5

Note 4 7-7Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 50 10

Note 1

6

140Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4

Note 3

7

8

Note 4 140Note 4 2002.5

-2.5

100Note 4 Note 4 Note 4 Note 4 Note 4 0.1 2

14

6-6Note 4 Note 4

0

I

OUT

mA

9

10

11

12

Note 4 Note 4 Note 4 Note 4 Note 4 Note 4 Note 4

Note 4 Note 4 Note 4 Note 4 Note 4 Note4

Note 4 Note 4 Note 4 Note 4 Note4

Note 4 Note 4 50 50

Note 3

13

14

Note 4 Note 4 Note4

22

Note 3

This chart gives the range of voltages which can be applied to the terminals listed horizontally with respect to the terminals listed vertically.
For example, the voltage range of horizontal Terminal 6 to vertical Terminal 4 is 2V to -10V.
NOTES:

1. Resistance should be inserted between Terminal 5 and external supply or line voltage for limiting current into Terminal 5 to less than
50mA.

2. Resistance should be inserted between Terminal 14 and external supply for limiting current into Terminal 14 to less than 2mA.

3. For the CA3079 indicated terminal is internally connected and, therefore, should not be used.

4. Voltages are not normally applied between these terminals; however, voltages appearing between these terminals are safe, if the spec­ified voltage limits between all other terminals are not exceeded.

5. For CA3079 (0V to -10V).

6