u6044b ETC-unknow, u6044b Datasheet - Page 2

• Manufacturer Part Number: u6044b
• Description: Radiator Controlled Timer
• Manufacturer: ETC-unknow

U 6044 B
Pin Configuration
Functional description
Power supply, Pin 8
For reasons of interference protection and surge immunity,
the supply voltage (Pin 8) must be provided with an
RC circuit as shown in figure 2a. Dropper resistor, R
limits the current in case of overvoltage, whereas C
smoothes the supply voltage at Pin 8.
Recommended values are: R
In case of figure 1, capacitor, C
2
V
Pin
1
2
3
4
5
6
7
8
Figure 2a Basic circuit for 12 V voltage supply and
Batt
Ignition
Symbol
Output
GND
OSC
V
AC
S
V
stab
th
S
47
16 V
C
m
1
F/
R
Reference point, ground
Relay control output
Signal input, ignition
Thermal switch, input
Air condition input
RC oscillator input
Stabilized voltage
Supply voltage
1
8
1
oscillator
510
1
W
= 510
2
7
1
, has a value of 10
Function
R
W
2
, C
6
3
1
= 47
C
2
m
F.
5
4
94 8749
m
F,
1
1
,
because a diode is connected between V
R
The integrated Z-diode (14 V) protects the supply
voltage,V
between 6 V and 16 V, supplied by V
However, it is possible to operate the integrated circuit with
a 5 V supply, but it should be free of interference voltages.
In this case, Pin 7 is connected to Pin 8 as shown in
figure 2b, and the R
V
1
V
S
.
Batt
= 5 V
Ignition
Output
GND
S
S
, therefore, the operation of the IC is possible
Figure 2b Basic circuit for V
th
1
2
3
4
TELEFUNKEN Semiconductors
1
C
1
8
1
circuit is omitted.
94 9233
2
7
Rev. A1: 12.12.1994
R
2
Batt
8
7
6
5
Batt
S
.
6
3
= 5 V
Air condition
V
V
OSC
and resistance,
C
S
stab
2
5
4
94 8750