U2101B
| Model | U2101B |
| Description | Relay Timer |
| PDF file | Total 9 pages (File size: 133K) |
| Chip Manufacturer | TEMIC |
U2101B
Relay Timer
Description
The U2101B monolithic integrated bipolar circuit is a
versatile timer device for relay control. Because of two
integrated, freely configurable operational amplifiers, it
covers a very wide range of applications.
Features
D
D
D
D
D
D
Adjustable window for trigger input
Enable input for triggering
Adjustable noise suppression
Adjustable and retriggerable tracking time
Enable and block delay
Two integrated operational amplifiers
freely connectable
Applications
D
D
D
D
D
Motion detectors
Tracking controllers
Multiple timer
Conditional switches
Clock generators
*
D
50 mA relay driver
Package:
DIP16, SO16
95 9738
1
R
a
15
+
14
–
OP 1
60 k
W
R
b
40 k
W
+
OP 2
–
3
4
GND
12
11
Window adjustment
f
osc1
RC oscillator 1
Timer 1
1024 T
osc1
Voltage
limitation
5
–V
S
6
10
Trigger
window
On:
4 T
osc2
Voltage
monitoring
Control logic
Relay driver
50 mA
f
osc2
8
16
2
V
Ref
–5V
13
Restart on: 64 T
osc2
Out (On): 0.1 V
Ref
Out (Off): 0.5 V
Ref
9
Enable
schmitt trigger
On:
0.6 V
Ref
Noise
suppression
7
On / Off: 1024 T
osc2
Timer 2, 3, 4
RC oscillator 2
Figure 1. Block diagram
TELEFUNKEN Semiconductors
Rev. A1, 30-May-96
1 (9)
