U2101B
| Model | U2101B |
| Description | Relay Timer |
| PDF file | Total 9 pages (File size: 133K) |
| Chip Manufacturer | TEMIC |
U2101B
RC Oscillator 1, Pin 12
The oscillator 1 with the following divider stage 1:1024
allows a very long and reproducible tracking time t
t
. The
circuitry of Pin 12 for a certain tracking time t
t
can be
calculated as follows:
R
osc1
[k
W
]
Voltage Divider, Pin 1
Two freely connectable operational amplifiers, OP1 and
OP2, are used to evaluate several sensor signals. The tap
of a voltage divider between GND and V
Ref
with a voltage
level of 0.6 V
Ref
is available at Pin 1. The middle of the
discriminator window is also at this value. Assuming that
the output of one operational amplifier is connected at the
trigger input, Pin 10 (window discriminator), the dc
operating point of this operational amplifier can
be adjusted without additional external resistors by
connecting the input to Pin 1. This value is approximately
in the center of the dynamic range of the OP.
+
1.6
t
t
[s]
1024
10
3
C
osc1
[
m
F]
whereas C
osc1
should not be greater than 1
m
F.
Absolute Maximum Ratings
Reference point Pin 5, unless otherwise specified
Parameters
Power supply
Current
t < 10
m
s
Reference voltage source
Output current
Output stage
Output voltage
Input currents
Pin 6
Pin 6
Pin 4
Pin 7
Pin 13 and 16
Symbol
–I
S
–i
S
I
O
–V
O
Value
15
60
5
V
S
to 1.8
5
V
Ref
to 0
–40 to +125
+125
–10 to +100
Unit
mA
mA
mA
V
mA
V
°C
°C
°C
"
I
I
Input voltages
Pins 1, 2, 3, 8, 9, 10, 11, 12, 14, 15
Storage temperature range
Junction temperature
Ambient temperature range
V
I
T
stg
T
j
T
amb
Thermal Resistance
Junction ambient
Parameters
DIP 16
SO 16 on PC board
SO 16 on ceramic
Symbol
R
thJA
Maximum
120
180
100
Unit
K/W
TELEFUNKEN Semiconductors
Rev. A1, 30-May-96
5 (9)
