TCA 785
Phase Control IC
Pb-free lead plating; RoHS compliant
Features
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TCA 785
Bipolar IC
Reliable recognition of zero passage
Large application scope
May be used as zero point switch
LSL compatible
Three-phase operation possible (3 ICs)
Output current 250 mA
Large ramp current range
Wide temperature range
PG-DIP-16-1
Type
TCA 785
Ordering Code
Q67000-A2321
Package
PG-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 Definitions and Functions
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
Pin Configuration
(top view)
Semiconductor Group
14
15
16
1
Symbol
GND
Q2
QU
Q2
V
SYNC
I
QZ
V
REF
R
9
C
10
V
11
C
12
L
Q1
Q2
V
S
Function
Ground
Output 2 inverted
Output U
Output 1 inverted
Synchronous voltage
Inhibit
Output Z
Stabilized voltage
Ramp resistance
Ramp capacitance
Control voltage
Pulse extension
Long pulse
Output 1
Output 2
Supply voltage
02.05