TCA785 Infineon Technologies, TCA785 Datasheet

IC PHASE CONTROL 250MA OUT 16DIP

TCA785

Manufacturer Part Number
TCA785
Description
IC PHASE CONTROL 250MA OUT 16DIP
Manufacturer
Infineon Technologies
Type
Phase Control ICr
Datasheet

Specifications of TCA785

Package / Case
16-DIP (0.300", 7.62mm)
Applications
Multiphase Controller
Current - Supply
6.5mA
Voltage - Supply
8 V ~ 18 V
Operating Temperature
-25°C ~ 85°C
Mounting Type
Through Hole
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 25 C
Mounting Style
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
SP000011719
TCA785
TCA785IN
TCA785X
TCA785XK
TCA785XTIN
TCA785XTIN

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Phase Control IC
Pb-free lead plating; RoHS compliant
Features
Type
TCA 785
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
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
Ordering Code
Q67000-A2321
Package
PG-DIP-16-1
1
Pin Definitions and Functions
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Symbol
GND
Q2
Q U
Q2
V
I
Q Z
V
R
C
V
C
L
Q 1
Q 2
V
SYNC
9
11
S
10
12
PG-DIP-16-1
REF
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
Bipolar IC
TCA 785
TCA 785
02.05

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TCA785 Summary of contents

Page 1

Phase Control IC Pb-free lead plating; RoHS compliant Features 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 ...

Page 2

Functional Description The synchronization signal is obtained via a high-ohmic resistance from the line voltage (voltage zero voltage detector evaluates the zero passages and transfers them to the 5 synchronization register. This synchronization register controls a ramp ...

Page 3

Pulse Diagram Semiconductor Group 3 TCA 785 ...

Page 4

Absolute Maximum Ratings Parameter Supply voltage Output current at pin 14, 15 Inhibit voltage Control voltage Voltage short-pulse circuit Synchronization input current Output voltage at pin 14, 15 Output current at pin Output voltage at pin ...

Page 5

Characteristics (cont’ – 25 ˚ 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 ...

Page 6

Characteristics (cont’ – 25 ˚ Parameter Outputs pin 14, 15 H-output voltage – 250 mA Q L-output voltage = Pulse width (short pulse) S9 open Pulse width ...

Page 7

Application Hints for External Components min Ramp capacitance 500 Triggering point Charge current = I 10 Pulse Extension versus Temperature 1) Attention to flyback times 1. Semiconductor Group ...

Page 8

Output Voltage measured Supply Current versus Supply Voltage Semiconductor Group S 8 TCA 785 ...

Page 9

It is necessary for all measurements to adjust the ramp with the aid e. nF Test Circuit 1 Semiconductor Group and R in the way that ...

Page 10

The remaining pins are connected as in test circuit 1 Test Circuit 2 The remaining pins are connected as in test circuit 1 Test Circuit 3 Semiconductor Group 10 TCA 785 ...

Page 11

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

Page 12

Inhibit 6 Pulse Extension 12 Semiconductor Group Long Pulse 13 Reference Voltage 8 12 TCA 785 ...

Page 13

Application Examples Triac Control for Gate Trigger Current A phase control with a directly controlled triac is shown in the figure. The triggering angle of the triac can be adjusted continuously between 0˚ and 180˚ with ...

Page 14

Fully Controlled AC Power Controller Circuit for Two High-Power Thyristors Shown is the possibility to trigger two antiparalleled thyristors with one IC TCA 785. The trigger pulse can be shifted continuously within a phase angle between 0˚ and 180˚ by ...

Page 15

Half-Controlled Single-Phase Bridge Circuit with Trigger Pulse Transformer and Direct Control for Low-Power Thyristors Semiconductor Group 15 TCA 785 ...

Page 16

Half-Controlled Single-Phase Bridge Circuit with Two Trigger Pulse Transformers for Low-Power Thyristors Semiconductor Group 16 TCA 785 ...

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