CA3079 View Datasheet(PDF) - Intersil
Part Name
Description
Manufacturer
CA3079 Datasheet PDF : 12 Pages
| |||
CA3059, CA3079
Functional Block Diagram
RS
5
12 IC
LIMITER
POWER
SUPPLY
AC INPUT
VOLTAGE
IC
2
1
RP 14
100µF +
15V -
13
RX 8
7
* NTC SENSOR
EXTERNAL
INHIBIT
“0”
CROSSING
DET.
PROTECTION
CIRCUIT
INHIBIT
ON/OFF
SENSING
AMPL.
9 10 11
* NEGATIVE TEMPERATURE COEFFICIENT
TRIAC
GATING
CIRCUIT
6 IC
RL
CURRENT
BOOST
3
MT2
4 G MT1
AC INPUT VOLTAGE (50/60 OR 400Hz)
V AC
24
120
208/230
277
INPUT SERIES RESISTOR (RS)
kΩ
2
10
20
25
NOTE: Circuitry within shaded areas, not included in CA3079
See chart
IC = Internal connection - DO NOT USE (Terminal restriction applies only to CA3079)
DISSIPATION RATING FOR RS
W
0.5
2
4
5
RS
5
AC
LINE
INPUT
D2
D1
IC
R1
5K
FOR DC MODE
OR 400Hz
12 OPERATION
CF
100µF
15V
COMMON
D7 D13
D3
D6
R2
27K
D8
D4
D5
Q1
R10
40K
RP
RSENSOR
2
13
COMMON
R7
10K
D9
Q6
R3
R4
12K
10K
10
Q2
Q3
9
Q4 Q5
11
R5
8
9.6K
TO
COMMON
R6
15K
D12
Q7
Q8
Q10
D15
D10
D11
FAIL-SAFE INPUT
All resistance values are in Ω
NOTE: Circuitry within shaded areas
not included in CA3079
14 IC 7
TO
COMMON
1 IC
INHIBIT
INPUT
IC = Internal connection - DO NOT USE (Terminal restriction applies only to
6 IC
FOR
EXTERNAL
TRIGGER
R8
15
3
R9 FOR
25 INCREASED
GATE DRIVE
Q9
4
TO
THYRISTOR
GATE
FIGURE 1. SCHEMATIC DIAGRAM OF CA3059 AND CA3079
4
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