U6046B / U6047B
Pin Configuration
Pin
1
2
3
4
5
6
7
8
Symbol
GND
RELAY
ON
OFF
TOGGLE
OSC
V
stab
V
S
Function
Reference point, ground
Relay control output
Switch-on input
Switch-off input
Toggle input
RC oscillator input
Stabilized voltage
Supply voltage
GND
RELAY
1
8
V
S
V
stab
OSC
TOGGLE
2
7
ON
OFF
3
6
4
94 8844
5
Figure 2. Pinning
Functional Description
Power Supply, Pin 8
For reasons of interference protection and surge immu-
nity, the supply voltage (Pin 8) must be provided with an
RC circuit as shown in figure 3. Dropper resistor, R
1
,
limits the current in case of overvoltage, whereas C
1
smoothes the supply voltage at Pin 8.
Recommended values are: R
1
= 510
W
, C
1
= 47
m
F.
The integrated Z-diode (14 V) protects the supply volt-
age,V
S
. Therefore, the operation of the IC is possible
between 6 V and 16 V, supplied by V
Batt
.
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 4, and the R
1
C
1
circuit is omitted.
V
Batt
R
1
C
1
47
m
F/
16 V
510
W
R
2
C
2
V
S
= 5 V
R
2
C
2
8
7
6
5
V
Batt
8
7
6
5
U6046B
U6047B
1
2
U6046B
U6047B
1
2
3
4
3
4
94 8749
94 8750
Figure 3.
Basic circuit for 12 V supply and oscillator
Figure 4.
Basic circuit for V
S
= 5 V
2 (11)
TELEFUNKEN Semiconductors
Rev. A2, 03-Feb-97
TEMIC [ TEMIC SEMICONDUCTORS ]
