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PDF TCA785 Datasheet ( Hoja de datos )

Número de pieza TCA785
Descripción Phase Control IC
Fabricantes Infineon Technologies 
Logotipo Infineon Technologies Logotipo

Total 16 Páginas
		
TCA785 Hoja de datos, Descripción, Manual
TCA 785
Phase Control IC
Features
q Reliable recognition of zero passage
q Large application scope
q May be used as zero point switch
q LSL compatible
q Three-phase operation possible (3 ICs)
q Output current 250 mA
q Large ramp current range
q Wide temperature range
TCA 785
Bipolar IC
P-DIP-16-1
Type
TCA 785
Ordering Code
Q67000-A2321
Package
P-DIP-16-1
This phase control IC is intended to control thyristors, triacs, and transistors. The trigger pulses
can be shifted within a phase angle between 0 ˚ and 180 ˚. Typical applications include
converter circuits, AC controllers and three-phase current controllers.
This IC replaces the previous types TCA 780 and TCA 780 D.
Pin Configuration
(top view)
Semiconductor Group
Pin Definitions and Functions
Pin Symbol Function
1
GND
Ground
2 Q2 Output 2 inverted
3 Q U Output U
4 Q2 Output 1 inverted
5
VSYNC
Synchronous voltage
6I
Inhibit
7 Q Z Output Z
8
V REF
Stabilized voltage
9 R9 Ramp resistance
10 C10 Ramp capacitance
11 V11 Control voltage
12 C12 Pulse extension
13 L
Long pulse
14 Q 1 Output 1
15 Q 2 Output 2
16 VS Supply voltage
1 09.94

1 page

TCA785 pdf
TCA 785
Characteristics (cont’d)
8 VS 18 V; – 25 ˚C TA 85 ˚C; f = 50 Hz
Parameter
Ramp generator
Charge current
Max. ramp voltage
Saturation voltage at capacitor
Ramp resistance
Sawtooth return time
Inhibit pin 6
switch-over of pin 7
Outputs disabled
Outputs enabled
Signal transition time
Input current
V6 = 8 V
Input current
V6 = 1.7 V
Deviation of I10
R 9 = const.
VS = 12 V; C10 = 47 nF
Deviation of I10
R 9 = const.
VS = 8 V to 18 V
Deviation of the ramp voltage
between 2 following
half-waves, VS = const.
Long pulse switch-over
pin 13
switch-over of S8
Short pulse at output
Long pulse at output
Input current
V13 = 8 V
Input current
V13 = 1.7 V
Outputs pin 2, 3, 4, 7
Reverse current
VQ = VS
Saturation voltage
IQ = 2 mA
Symbol
min.
I10 10
V10
V10 100
R9 3
tf
V6 L
V6 H
tr
I6 H
I6 L
4
1
80
I10 – 5
I10 – 20
V10 max
V13 H
V13 L
I13 H
– I13 L
3.5
45
ICEO
Vsat
0.1
Limit Values
typ. max.
1000
V2 – 2
225 350
300
80
3.3 2.5
3.3
5
500 800
150 200
5
20
±1
2.5
2.5 2
10
65 100
10
0.4 2
Unit Test
Circuit
µA
V1
mV 1.6
k1
µs 1
V1
V1
µs 1
µA 1
µA 1
%1
%1
%
V1
V1
µA 1
µA 1
µA 2.6
V 2.6
Semiconductor Group
5

5 Page

TCA785 arduino
TCA 785
Remaining pins are connected as in test circuit 1
The 10 µF capacitor at pin 5 serves only for test purposes
Test Circuit 4
Test Circuit 5
Semiconductor Group
Test Circuit 6
11

11 Page


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