U6046B-FP TEMIC Semiconductors, U6046B-FP Datasheet - Page 4

• Manufacturer Part Number: U6046B-FP
• Description: Rear Window Heating Timer
• Manufacturer: TEMIC Semiconductors

V
Relay Control Output Behavior, Pin 2
Time functions (relay output) can be started or interrupted
by the three inputs i.e., ON, OFF or TOGGLE (Pins 3, 4
and 5).
The relay becomes active if the time function is triggered,
and the relay contact is interrupted after the elapse of
delay time, t
Toggle Input, Figures 5 and 6
When the push-button (TOGGLE) switch, S
for the first time, the relay becomes active after the
debounce time, t
Renewed operation of S
relay contact and the relay is disabled. Each operation of
the toggle switch, S
relay output when the debounce time, t
the TOGGLE function.
If the relay output is not disabled by pressing the switch
S
ON, OFF Inputs, Pins 3 and 4,
Figures 7 and 8
To avoid simultaneous operation of both inputs, Pin 3
(ON) and Pin 4 (OFF), use of two-way contact with
centre-off position with spring returns (also known as
rocker-actuated switch) is recommended.
Pressing the push-button switch (Pin 3-ON) leads to the
activation of the relay after the debounce time, t
U6046B / U6047B
4 (11)
Batt
1
, the output is active until the delay time, t
47
16 V
Figure 7.
C
d
m
. There are two input possibilities:
1
F/
R
1
3
, i.e., the relay output, Pin 2, is active.
8
1
1
510
ON/OFF function U6046B
, changes (alters) the condition of the
W
U6046B
1
2
7
causes the interruption of the
R
2
6
3
C
2
3
, is exceeded i.e.,
5
4
20 k
W
d
1
, is over.
, is pressed
20 k
94 8753
W
S3
3
,
whereas the switching of the Pin 4 switch correspond-
ingly leads to the relay being de-energized. If the relay is
not de-energized by the push-button switch, it becomes
disabled after the delay time, t
Combined operation, “TOGGLE and ON/OFF” is not
possible due to the fact that there is only one debouncing
circuit. Debouncing functions on both sides i.e., when-
ever S
If Pin 3 (input ON) is continuously closed, the delay time,
t
used to generate a defined power-on-reset pulse to trigger,
for example, a delay time, t
V
Figure 10 shows the input circuit of U6046B. It has an
integrated pull-down resistance (20 k
(15 pF) and Z-diode (7 V). It reacts to voltages greater
than 2 V. The external protective resistor has a value of
20 k
battery as shown in the diagram.
Contact current, I, is calculated as follows:
It can be increased by connecting a 5.6 k
the push-button switch to ground as shown in figure 18.
d
, still elapses and the relay is interrupted. This can be
Batt
I
I
+
+
W
V
, is applied.
1
R (
(12–7) V
Batt
and the push-button switch, S, is connected to the
is ON or OFF.
20 k
+
V
Figure 8.
Batt
20 k
W
–V
47
16 V
Z
W
C
[
m
)
1
F/
ON/OFF function U6047B
R
0.25 mA
1
TELEFUNKEN Semiconductors
8
1
where V
510
d
, when the battery voltage,
W
d
, is over.
2
7
U6047B
Batt
2 k
R
2
+
W
Rev. A2, 03-Feb-97
W
3
6
12 V, V
), RF capacitor
W
C
2
resistor from
S3
94 8754
5
4
Z
2 k
+
W
7 V