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CA3059 データシート(PDF) 1 Page - ON Semiconductor

部品番号 CA3059
部品情報  Zero Voltage Switch
Download  6 Pages
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メーカー  ONSEMI [ON Semiconductor]
ホームページ  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

CA3059 データシート(HTML) 1 Page - ON Semiconductor

  CA3059_06 Datasheet HTML 1Page - ON Semiconductor CA3059_06 Datasheet HTML 2Page - ON Semiconductor CA3059_06 Datasheet HTML 3Page - ON Semiconductor CA3059_06 Datasheet HTML 4Page - ON Semiconductor CA3059_06 Datasheet HTML 5Page - ON Semiconductor CA3059_06 Datasheet HTML 6Page - ON Semiconductor  
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FUNCTIONAL BLOCK
DESCRIPTION
1. Limiter−Power Supply — Allows operation of
the CA3059 directly from an AC line. Suggested
dropping resistor (RS) values are given in the table
below.
Figure 1. Representative Block Diagram
RL
RP
+
15
V
100
μF
MT2
MT1
Gate
Zero
Crossing
Detector
Power
Supply
2
AC
Input
Voltage
AC
Input
RS
5
VCC
VCC
4
*
RX
* NTC Sensor
Inhibit
External Trigger
Current
Boost
3
Triac
Drive
Limiter
14
12
11
10
9
13
Gnd
VCC
81
6
Protection
Circuit
+
On/Off
Sensing
Amp
7
DC Mode or
400 Hz Input
2. Differential On/Off Sensing Amplifier — Tests
for condition of external sensors or input command
signals. Proportional control capability or hysteresis
may be implemented using this block.
3. Zero−Crossing Detector — Synchronizes the
output pulses to the zero voltage point of the AC cycle.
This synchronization eliminates RFI when used with
resistive loads.
4. Triac Drive — Supplies high−current pulses to
the external power controlling thyristor.
5. Protection Circuit — A built−in circuit may be
actuated, if the sensor opens or shorts, to remove the
drive current from the external triac.
6. Inhibit Capability — Thyristor firing may be
inhibited by the action of an internal diode gate at
Pin 1.
7. High Power DC Comparator Operation —
Operation in this mode is accomplished by connecting
Pin 7 to Pin 12 (thus overriding the action of the
zero−crossing detector). When Pin 13 is positive with
respect to Pin 9, current to the thyristor is continuous.
© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 2
1
Publication Order Number:
CA3059/D
CA3059
Zero Voltage Switch
This series is designed for thyristor control in a variety of AC power
switching applications for AC input voltages of 24 V, 120 V,
208/230 V, and 277 V @ 50/60 Hz.
Applications:
Relay Control
Valve Control
Heater Control
Lamp Control
On−Off Motor Switching
Differential Comparator with Self−Contained Power Supply for
Industrial Applications
Synchronous Switching of Flashing Lights
AC Input Voltage
(50/60 Hz)
Vac
Input Series
Resistor (RS)
Dissipation Rating
for RS
W
24
2.0
0.5
120
10
2.0
208/230
20
4.0
277
25
5.0
http://onsemi.com
SEMICONDUCTOR
TECHNICAL DATA
ZERO VOLTAGE SWITCH
PLASTIC PACKAGE
CASE 646
1
14
Device
Operating
Temperature Range
Package
ORDERING INFORMATION
CA3059
TA = − 40° to +85°C
Plastic DIP


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