TCA785 Infineon Technologies, TCA785 Datasheet - Page 2

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

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

Functional Description
The synchronization signal is obtained via a high-ohmic resistance from the line voltage
(voltage V
synchronization register.
This synchronization register controls a ramp generator, the capacitor C
by a constant current (determined by R
V
control voltage V
For every half wave, a positive pulse of approx. 30 s duration appears at the outputs Q 1 and
Q 2. The pulse duration can be prolonged up to 180˚ via a capacitor C
to ground, pulses with a duration between
Outputs
A signal of
A signal which corresponds to the NOR link of Q 1 and Q 2 is available at output Q Z (pin 7).
The inhibit input can be used to disable outputs Q1, Q2 and
Pin 13 can be used to extend the outputs
Semiconductor Group
Block Diagram
11
(triggering angle ), a signal is processed to the logic. Dependent on the magnitude of the
Q 1
5
). A zero voltage detector evaluates the zero passages and transfers them to the
+180˚ which can be used for controlling an external logic,is available at pin 3.
and
11
, the triggering angle
Q 2
supply the inverse signals of Q 1 and Q 2.
9
). If the ramp voltage V
can be shifted within a phase angle of 0˚ to 180˚.
Q 1
and 180˚ will result.
2
and
Q 2
to full pulse length (180˚ – ).
Q 1
10
exceeds the control voltage
,
Q 2
12
. If pin 12 is connected
10
.
of which is charged
TCA 785